Hair follicle. Medical search

A tube-like invagination of the EPIDERMIS from which the hair shaft develops and into which SEBACEOUS GLANDS open. The hair follicle is lined by a cellular inner and outer root sheath of epidermal origin and is invested with a fibrous sheath derived from the dermis. (Stedman, 26th ed) Follicles of very long hairs extend into the subcutaneous layer of tissue under the SKIN.

A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body.

An OOCYTE-containing structure in the cortex of the OVARY. The oocyte is enclosed by a layer of GRANULOSA CELLS providing a nourishing microenvironment (FOLLICULAR FLUID). The number and size of follicles vary depending on the age and reproductive state of the female. The growing follicles are divided into five stages: primary, secondary, tertiary, Graafian, and atretic. Follicular growth and steroidogenesis depend on the presence of GONADOTROPINS.

Absence of hair from areas where it is normally present.

A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity.

Diseases affecting the orderly growth and persistence of hair.

The external, nonvascular layer of the skin. It is made up, from within outward, of five layers of EPITHELIUM: (1) basal layer (stratum basale epidermidis); (2) spinous layer (stratum spinosum epidermidis); (3) granular layer (stratum granulosum epidermidis); (4) clear layer (stratum lucidum epidermidis); and (5) horny layer (stratum corneum epidermidis).

Methods used to remove unwanted facial and body hair.

Small, sacculated organs found within the DERMIS. Each gland has a single duct that emerges from a cluster of oval alveoli. Each alveolus consists of a transparent BASEMENT MEMBRANE enclosing epithelial cells. The ducts from most sebaceous glands open into a HAIR FOLLICLE, but some open on the general surface of the SKIN. Sebaceous glands secrete SEBUM.

The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).

Color of hair or fur.

Sensory cells in the organ of Corti, characterized by their apical stereocilia (hair-like projections). The inner and outer hair cells, as defined by their proximity to the core of spongy bone (the modiolus), change morphologically along the COCHLEA. Towards the cochlear apex, the length of hair cell bodies and their apical STEREOCILIA increase, allowing differential responses to various frequencies of sound.

The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.

A type I keratin found in the basal layer of the adult epidermis and in other stratified epithelia.

Epidermal cells which synthesize keratin and undergo characteristic changes as they move upward from the basal layers of the epidermis to the cornified (horny) layer of the skin. Successive stages of differentiation of the keratinocytes forming the epidermal layers are basal cell, spinous or prickle cell, and the granular cell.

A layer of vascularized connective tissue underneath the EPIDERMIS. The surface of the dermis contains innervated papillae. Embedded in or beneath the dermis are SWEAT GLANDS; HAIR FOLLICLES; and SEBACEOUS GLANDS.

Keratins that are specific for hard tissues such as HAIR; NAILS; and the filiform papillae of the TONGUE.

Transmembrane proteins belonging to the tumor necrosis factor superfamily that play an essential role in the normal development of several ectodermally derived organs. Several isoforms of the ectodysplasins exist due to multiple ALTERNATIVE SPLICING of the MRNA for the protein. The isoforms ectodysplasin A1 and ectodysplasin A2 are considered biologically active and each bind distinct ECTODYSPLASIN RECEPTORS. Genetic mutations that result in loss of function of ectodysplasin result in ECTODERMAL DYSPLASIA 1, ANHIDROTIC.

The reproductive organ (GONADS) in female animals. In vertebrates, the ovary contains two functional parts: the OVARIAN FOLLICLE for the production of female germ cells (OOGENESIS); and the endocrine cells (GRANULOSA CELLS; THECA CELLS; and LUTEAL CELLS) for the production of ESTROGENS and PROGESTERONE.

A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.

Supporting cells for the developing female gamete in the OVARY. They are derived from the coelomic epithelial cells of the gonadal ridge. Granulosa cells form a single layer around the OOCYTE in the primordial ovarian follicle and advance to form a multilayered cumulus oophorus surrounding the OVUM in the Graafian follicle. The major functions of granulosa cells include the production of steroids and LH receptors (RECEPTORS, LH).

Auditory sensory cells of organ of Corti, usually placed in one row medially to the core of spongy bone (the modiolus). Inner hair cells are in fewer numbers than the OUTER AUDITORY HAIR CELLS, and their STEREOCILIA are approximately twice as thick as those of the outer hair cells.

Loss of scalp and body hair involving microscopically inflammatory patchy areas.

The discharge of an OVUM from a rupturing follicle in the OVARY.

The fluid surrounding the OVUM and GRANULOSA CELLS in the Graafian follicle (OVARIAN FOLLICLE). The follicular fluid contains sex steroids, glycoprotein hormones, plasma proteins, mucopolysaccharides, and enzymes.

Relatively undifferentiated cells that retain the ability to divide and proliferate throughout postnatal life to provide progenitor cells that can differentiate into specialized cells.

Presence of less than the normal amount of hair. (Dorland, 27th ed)

Congenital structural abnormalities of the skin.

Mammalian pigment cells that produce MELANINS, pigments found mainly in the EPIDERMIS, but also in the eyes and the hair, by a process called melanogenesis. Coloration can be altered by the number of melanocytes or the amount of pigment produced and stored in the organelles called MELANOSOMES. The large non-mammalian melanin-containing cells are called MELANOPHORES.

Dyes used as cosmetics to change hair color either permanently or temporarily.

Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN.

Sensory cells in the acoustic maculae with their apical STEREOCILIA embedded in a gelatinous OTOLITHIC MEMBRANE. These hair cells are stimulated by the movement of otolithic membrane, and impulses are transmitted via the VESTIBULAR NERVE to the BRAIN STEM. Hair cells in the saccule and those in the utricle sense linear acceleration in vertical and horizontal directions, respectively.

The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.

Hair grooming, cleansing and modifying products meant for topical application to hair, usually human. They include sprays, bleaches, dyes, conditioners, rinses, shampoos, nutrient lotions, etc.

The flattened stroma cells forming a sheath or theca outside the basal lamina lining the mature OVARIAN FOLLICLE. Thecal interstitial or stromal cells are steroidogenic, and produce primarily ANDROGENS which serve as precusors of ESTROGENS in the GRANULOSA CELLS.

Sensory cells of organ of Corti. In mammals, they are usually arranged in three or four rows, and away from the core of spongy bone (the modiolus), lateral to the INNER AUDITORY HAIR CELLS and other supporting structures. Their cell bodies and STEREOCILIA increase in length from the cochlear base toward the apex and laterally across the rows, allowing differential responses to various frequencies of sound.

Cyst due to the occlusion of the duct of a follicle or small gland.

Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.

A type I keratin that is found associated with the KERATIN-5 in the internal stratified EPITHELIUM. Mutations in the gene for keratin-14 are associated with EPIDERMOLYSIS BULLOSA SIMPLEX.

A keratin subtype that includes keratins that are generally larger and less acidic that TYPE I KERATINS. Type II keratins combine with type I keratins to form keratin filaments.

Stiff hairs projecting from the face around the nose of most mammals, acting as touch receptors.

The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids.

The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS.

The functions of the skin in the human and animal body. It includes the pigmentation of the skin.

Excessive hair growth at inappropriate locations, such as on the extremities, the head, and the back. It is caused by genetic or acquired factors, and is an androgen-independent process. This concept does not include HIRSUTISM which is an androgen-dependent excess hair growth in WOMEN and CHILDREN.

The physiological renewal, repair, or replacement of tissue.

Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).

Histochemical localization of immunoreactive substances using labeled antibodies as reagents.

A tumor necrosis factor receptor-associated factor that acts as a specific signaling adaptor protein for the EDAR RECEPTOR and plays an important role in ectodermal development. It binds to edar receptor via its C-terminal death domain region and to other specific TNF receptor-associated factors via its N-terminal domain. Loss of function of edar-associated death domain protein is associated with AUTOSOMAL RECESSIVE ANHIDROTIC ECTODERMAL DYSPLASIA.

The grafting of skin in humans or animals from one site to another to replace a lost portion of the body surface skin.

Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.

A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes.

A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or all of the histological features of the tissue in vivo. (Freshney, Culture of Animal Cells, 3d ed, p1)

A family of intercellular signaling proteins that play and important role in regulating the development of many TISSUES and organs. Their name derives from the observation of a hedgehog-like appearance in DROSOPHILA embryos with genetic mutations that block their action.

Sweat-producing structures that are embedded in the DERMIS. Each gland consists of a single tube, a coiled body, and a superficial duct.

A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity.

The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.

A multi-functional catenin that participates in CELL ADHESION and nuclear signaling. Beta catenin binds CADHERINS and helps link their cytoplasmic tails to the ACTIN in the CYTOSKELETON via ALPHA CATENIN. It also serves as a transcriptional co-activator and downstream component of WNT PROTEIN-mediated SIGNAL TRANSDUCTION PATHWAYS.

The process of germ cell development in the female from the primordial germ cells through OOGONIA to the mature haploid ova (OVUM).

Tumors or cancer of the SKIN.

Specialized stem cells that are committed to give rise to cells that have a particular function; examples are MYOBLASTS; MYELOID PROGENITOR CELLS; and skin stem cells. (Stem Cells: A Primer [Internet]. Bethesda (MD): National Institutes of Health (US); 2000 May [cited 2002 Apr 5]. Available from: http://www.nih.gov/news/stemcell/primer.htm)

A tumor composed of cells resembling those of the hair matrix, which undergo 'mummification' and may calcify. It is a relatively uncommon tumor, which may occur at any age from infancy. The majority of patients are under 20, and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumor 3-30 mm in diameter, situated in the head, neck, or upper extremity. (From Rook et al., Textbook of Dermatology, 4th ed, p2401)

Restoration of integrity to traumatized tissue.

Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.

Insoluble polymers of TYROSINE derivatives found in and causing darkness in skin (SKIN PIGMENTATION), hair, and feathers providing protection against SUNBURN induced by SUNLIGHT. CAROTENES contribute yellow and red coloration.

Glycoproteins that inhibit pituitary FOLLICLE STIMULATING HORMONE secretion. Inhibins are secreted by the Sertoli cells of the testes, the granulosa cells of the ovarian follicles, the placenta, and other tissues. Inhibins and ACTIVINS are modulators of FOLLICLE STIMULATING HORMONE secretions; both groups belong to the TGF-beta superfamily, as the TRANSFORMING GROWTH FACTOR BETA. Inhibins consist of a disulfide-linked heterodimer with a unique alpha linked to either a beta A or a beta B subunit to form inhibin A or inhibin B, respectively

Wnt proteins are a large family of secreted glycoproteins that play essential roles in EMBRYONIC AND FETAL DEVELOPMENT, and tissue maintenance. They bind to FRIZZLED RECEPTORS and act as PARACRINE PROTEIN FACTORS to initiate a variety of SIGNAL TRANSDUCTION PATHWAYS. The canonical Wnt signaling pathway stabilizes the transcriptional coactivator BETA CATENIN.

A technique for maintaining or growing TISSUE in vitro, usually by DIFFUSION, perifusion, or PERFUSION. The tissue is cultured directly after removal from the host without being dispersed for cell culture.

A gonadotropic glycoprotein hormone produced primarily by the PLACENTA. Similar to the pituitary LUTEINIZING HORMONE in structure and function, chorionic gonadotropin is involved in maintaining the CORPUS LUTEUM during pregnancy. CG consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is virtually identical to the alpha subunits of the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity (CHORIONIC GONADOTROPIN, BETA SUBUNIT, HUMAN).

Filaments 7-11 nm in diameter found in the cytoplasm of all cells. Many specific proteins belong to this group, e.g., desmin, vimentin, prekeratin, decamin, skeletin, neurofilin, neurofilament protein, and glial fibrillary acid protein.

Mice bearing mutant genes which are phenotypically expressed in the animals.

RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.

Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.

A potent direct-acting peripheral vasodilator (VASODILATOR AGENTS) that reduces peripheral resistance and produces a fall in BLOOD PRESSURE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p371)

A T-cell factor that plays an essential role in EMBRYONIC DEVELOPMENT.

A fibroblast growth factor that may play a role in regulation of HAIR FOLLICLE phenotype. Spontaneous mutation of the gene for this protein results in a strain of MICE with abnormally long hair, referred to as angora mice.

Refers to animals in the period of time just after birth.

A delta-4 C19 steroid that is produced not only in the TESTIS, but also in the OVARY and the ADRENAL CORTEX. Depending on the tissue type, androstenedione can serve as a precursor to TESTOSTERONE as well as ESTRONE and ESTRADIOL.

Simple sweat glands that secrete sweat directly onto the SKIN.

The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.

Two membranous sacs within the vestibular labyrinth of the INNER EAR. The saccule communicates with COCHLEAR DUCT through the ductus reuniens, and communicates with utricle through the utriculosaccular duct from which the ENDOLYMPHATIC DUCT arises. The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the VESTIBULAR NERVE.

Modified epidermal cells located in the stratum basale. They are found mostly in areas where sensory perception is acute, such as the fingertips. Merkel cells are closely associated with an expanded terminal bulb of an afferent myelinated nerve fiber. Do not confuse with Merkel's corpuscle which is a combination of a neuron and an epidermal cell.

A type II keratin that is found associated with the KERATIN-14 in the internal stratified EPITHELIUM. Mutations in the gene for keratin-5 are associated with EPIDERMOLYSIS BULLOSA SIMPLEX.

The oily substance secreted by SEBACEOUS GLANDS. It is composed of KERATIN, fat, and cellular debris.

A complex signaling pathway whose name is derived from the DROSOPHILA Wg gene, which when mutated results in the wingless phenotype, and the vertebrate INT gene, which is located near integration sites of MOUSE MAMMARY TUMOR VIRUS. The signaling pathway is initiated by the binding of WNT PROTEINS to cells surface WNT RECEPTORS which interact with the AXIN SIGNALING COMPLEX and an array of second messengers that influence the actions of BETA CATENIN.

All of the processes involved in increasing CELL NUMBER including CELL DIVISION.

Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.

A keratin subtype that includes keratins that are generally smaller and more acidic that TYPE II KERATINS. Type I keratins combine with type II keratins to form keratin filaments.

The period in the ESTROUS CYCLE associated with maximum sexual receptivity and fertility in non-primate female mammals.

The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.

A major gonadotropin secreted by the human adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and the LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. The alpha subunit is common in the three human pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity.

Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.

Gonadotropins secreted by the pituitary or the placenta in horses. This term generally refers to the gonadotropins found in the pregnant mare serum, a rich source of equine CHORIONIC GONADOTROPIN; LUTEINIZING HORMONE; and FOLLICLE STIMULATING HORMONE. Unlike that in humans, the equine LUTEINIZING HORMONE, BETA SUBUNIT is identical to the equine choronic gonadotropin, beta. Equine gonadotropins prepared from pregnant mare serum are used in reproductive studies.

Techniques for the artifical induction of ovulation, the rupture of the follicle and release of the ovum.

A malignant skin neoplasm that seldom metastasizes but has potentialities for local invasion and destruction. Clinically it is divided into types: nodular, cicatricial, morphaic, and erythematoid (pagetoid). They develop on hair-bearing skin, most commonly on sun-exposed areas. Approximately 85% are found on the head and neck area and the remaining 15% on the trunk and limbs. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1471)

One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.

The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.

Coloration of the skin.

A glycoprotein that causes regression of MULLERIAN DUCTS. It is produced by SERTOLI CELLS of the TESTES. In the absence of this hormone, the Mullerian ducts develop into structures of the female reproductive tract. In males, defects of this hormone result in persistent Mullerian duct, a form of MALE PSEUDOHERMAPHRODITISM.

Cell surface proteins that bind FOLLICLE STIMULATING HORMONE with high affinity and trigger intracellular changes influencing the behavior of cells.

The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.

Inflammation of follicles, primarily hair follicles.

An integrin alpha subunit that primarily associates with INTEGRIN BETA1 or INTEGRIN BETA4 to form laminin-binding heterodimers. Integrin alpha6 has two alternatively spliced isoforms: integrin alpha6A and integrin alpha6B, which differ in their cytoplasmic domains and are regulated in a tissue-specific and developmental stage-specific manner.

The developmental history of specific differentiated cell types as traced back to the original STEM CELLS in the embryo.

The yellow body derived from the ruptured OVARIAN FOLLICLE after OVULATION. The process of corpus luteum formation, LUTEINIZATION, is regulated by LUTEINIZING HORMONE.

Hormones that stimulate gonadal functions such as GAMETOGENESIS and sex steroid hormone production in the OVARY and the TESTIS. Major gonadotropins are glycoproteins produced primarily by the adenohypophysis (GONADOTROPINS, PITUITARY) and the placenta (CHORIONIC GONADOTROPIN). In some species, pituitary PROLACTIN and PLACENTAL LACTOGEN exert some luteotropic activities.

Bone-growth regulatory factors that are members of the transforming growth factor-beta superfamily of proteins. They are synthesized as large precursor molecules which are cleaved by proteolytic enzymes. The active form can consist of a dimer of two identical proteins or a heterodimer of two related bone morphogenetic proteins.

Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS.

The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.

Morphological and physiological development of EMBRYOS or FETUSES.

Mutant strains of mice that produce little or no hair.

Elements of limited time intervals, contributing to particular results or situations.

The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.

A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.

Cells with high proliferative and self renewal capacities derived from adults.

An assisted reproductive technique that includes the direct handling and manipulation of oocytes and sperm to achieve fertilization in vitro.

One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.

The spiral EPITHELIUM containing sensory AUDITORY HAIR CELLS and supporting cells in the cochlea. Organ of Corti, situated on the BASILAR MEMBRANE and overlaid by a gelatinous TECTORIAL MEMBRANE, converts sound-induced mechanical waves to neural impulses to the brain.

Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.

Highly keratinized processes that are sharp and curved, or flat with pointed margins. They are found especially at the end of the limbs in certain animals.

Dense fibrous layer formed from mesodermal tissue that surrounds the epithelial enamel organ. The cells eventually migrate to the external surface of the newly formed root dentin and give rise to the cementoblasts that deposit cementum on the developing root, fibroblasts of the developing periodontal ligament, and osteoblasts of the developing alveolar bone.

The period of cyclic physiological and behavior changes in non-primate female mammals that exhibit ESTRUS. The estrous cycle generally consists of 4 or 5 distinct periods corresponding to the endocrine status (PROESTRUS; ESTRUS; METESTRUS; DIESTRUS; and ANESTRUS).

Diverse developing mouse lineages exhibit high-level c-Myb expression in immature cells and loss of expression upon differentiation. (1/1203)

The c-myb gene encodes a sequence specific transactivator that is required for fetal hematopoiesis, but its potential role in other tissues is less clear because of the early fetal demise of mice with targeted deletions of the c-myb gene and incomplete of knowledge about c-myb's expression pattern. In the hematopoietic system, c-Myb protein acts on target genes whose expression is restricted to individual lineages, despite Myb's presence and role in multiple immature lineages. This suggests that c-Myb actions within different cell type-specific contexts are strongly affected by combinatorial interactions. To consider the possibility of similar c-Myb actions could extend into non-hematopoietic systems in other cell and tissue compartments, we characterized c-myb expression in developing and adult mice using in situ hybridization and correlated this with stage-specific differentiation and mitotic activity. Diverse tissues exhibited strong c-myb expression during development, notably tooth buds, the thyroid primordium, developing trachea and proximal branching airway epithelium, hair follicles, hematopoietic cells, and gastrointestinal crypt epithelial cells. The latter three of these all maintained high expression into adulthood, but with characteristic restriction to immature cell lineages prior to their terminal differentiation. In all sites, during fetal and adult stages, loss of c-Myb expression correlated strikingly with the initiation of terminal differentiation, but not the loss of mitotic activity. Based on these data, we hypothesize that c-Myb's function during cellular differentiation is both an activator of immature gene expression and a suppressor of terminal differentiation in diverse lineages. (+info)

WNT signaling in the control of hair growth and structure. (2/1203)

Characterization of the molecular pathways controlling differentiation and proliferation in mammalian hair follicles is central to our understanding of the regulation of normal hair growth, the basis of hereditary hair loss diseases, and the origin of follicle-based tumors. We demonstrate that the proto-oncogene Wnt3, which encodes a secreted paracrine signaling molecule, is expressed in developing and mature hair follicles and that its overexpression in transgenic mouse skin causes a short-hair phenotype due to altered differentiation of hair shaft precursor cells, and cyclical balding resulting from hair shaft structural defects and associated with an abnormal profile of protein expression in the hair shaft. A putative effector molecule for WNT3 signaling, the cytoplasmic protein Dishevelled 2 (DVL2), is normally present at high levels in a subset of cells in the outer root sheath and in precursor cells of the hair shaft cortex and cuticle which lie immediately adjacent to Wnt3-expressing cells. Overexpression of Dvl2 in the outer root sheath mimics the short-hair phenotype produced by overexpression of Wnt3, supporting the hypothesis that Wnt3 and Dvl2 have the potential to act in the same pathway in the regulation of hair growth. These experiments demonstrate a previously unrecognized role for WNT signaling in the control of hair growth and structure, as well as presenting the first example of a mammalian phenotype resulting from overexpression of a Dvl gene and providing an accessible in vivo system for analysis of mammalian WNT signaling pathways. (+info)

Procyanidin oligomers selectively and intensively promote proliferation of mouse hair epithelial cells in vitro and activate hair follicle growth in vivo. (3/1203)

We have previously reported that proanthocyanidins extracted from grape seeds possess growth-promoting activity toward murine hair epithelial cells in vitro and stimulate anagen induction in hair cycle progression in vivo. This report constitutes a comparison of the growth-promoting activity of procyanidin oligomers and the target cells of procyanidins in the skin. Results show that procyanidin dimer and trimer exhibit higher growth-promoting activity than the monomer. The maximum growth-promoting activity for hair epithelial cells with procyanidin B-2, an epicatechin dimer, reached about 300% (30 microM) relative to controls (= 100%) in a 5 d culture. Optimum concentration of procyanidin C-1, an epicatechin trimer, was lower than that of procyanidin B-2; the maximum growth-promoting activity of procyanidin C-1 was about 220% (3 microM). No other flavonoid compounds examined exhibit higher proliferative activities than the procyanidins. In skin constituent cells, only epithelial cells such as hair keratinocytes or epidermal keratinocytes respond to procyanidin oligomers. Topical application of 1% procyanidin oligomers on shaven C3H mice in the telogen phase led to significant hair regeneration [procyanidin B-2, 69.6% +/- 21.8% (mean +/- SD); procyanidin B-3, 80.9% +/- 13.0%; procyanidin C-1, 78.3% +/- 7.6%] on the basis of the shaven area; application of vehicle only led to regeneration of 41.7% (SD = 16.3%). In this paper, we demonstrate the hair-growing activity of procyanidin oligomers both in vitro and in vivo, and their potential for use as agents to induce hair growth. (+info)

Topical gene delivery to murine skin. (4/1203)

We topically applied naked plasmid DNA containing the luciferase or chloramphenicol acetyltransferase cDNA directly to mouse skin. Gene expression was detected in skin samples as early as 4 h after DNA application, plateaued from 16 to 72 h post-application, and had decreased significantly by 7 d post-application. Reporter gene activity following topical DNA delivery was comparable with that produced by intradermal injection of DNA. Plasmid DNA at concentrations > or =0.25 microg per microl were required to achieve maximal expression levels. Reporter gene expression following topical administration was largely confined to the superficial layers of the epidermis and to hair follicles. Surprisingly, certain cationic liposomes inhibited the efficiency of cutaneous gene transfer. This technique provides a simple, clinically relevant approach to deliver genes to the skin, with potential application in treating a variety of cutaneous disorders. (+info)

Association between mouse nude gene expression and the initiation of epithelial terminal differentiation. (5/1203)

Loss-of-function mutations in Whn (Hfh 11), a winged-helix/forkhead transcription factor, result in the nude mouse phenotype. To determine the whn expression pattern during development, we utilized mice in which a beta-galactosidase reporter gene was placed under the control of the wild-type whn promoter by homologous recombination (M. Nehls et al., 1996, Science 272, 886-889). Sites of reporter expression were confirmed by immunohistochemical staining for Whn protein or by in situ hybridization for whn mRNA. At all developmental stages, whn expression is restricted to epithelial cells. In addition to the skin and thymus, whn is expressed in the developing nails, nasal passages, tongue, palate, and teeth. In embryonic epidermis, suprabasal cells induce whn expression at the same time that terminal differentiation markers first appear. As the epidermis matures, whn promoter activity is found primarily in the first suprabasal layer, which contains keratinocytes in the early stages of terminal differentiation. In developing and mature anagen hair follicles, whn is expressed at high levels in the postmitotic precursor cells of the hair shaft and inner root sheath. Though principally associated with terminal differentiation, whn expression is also detected in progenitor cell compartments; in the hair bulb matrix and basal epidermal layer, a small subclass of cells expresses whn, while in the outer root sheath, whn promoter activity is induced as the follicle completes its elongation. Within these compartments, rare cells exhibit both whn expression and the nuclear proliferation marker Ki-67. The results suggest that whn expression encompasses the transition from a proliferative to a postmitotic state and that whn regulates the initiation of terminal differentiation. (+info)

UVB irradiation stimulates deposition of new elastic fibers by modified epithelial cells surrounding the hair follicles and sebaceous glands in mice. (6/1203)

UVB irradiation stimulates the synthesis of elastin in the skin of humans and experimental animals. In this study we localized the site and the cells that are responsible for the synthesis of murine dermal elastic fibers. SKH-1 hairless mice were irradiated with UVB and the skin removed for light microscopy, electron microscopy, in situ hybridization, immunohistochemistry, and biochemical studies. In response to chronic low doses of UVB there was an initial moderate increase in tropoelastin mRNA in the papillary dermis. By contrast, there was a continuous marked elevation of collagen alpha1(I) message localizing to sites of inflammatory cell influx throughout the upper and lower dermis. After 25 wk of UV irradiation there was a 2-fold increase in skin elastin, yet total collagen remained unchanged. Serial desmosine analysis from en face sections indicated the increase in elastin content was due to dermal elastic fibers, an increase in the size and number of the dermal cysts, and an increase in subpanniculus elastic fibers. Elastin stains of en face sections suggested that the elastic fibers in the upper dermis were exclusively derived from cells lining the epithelial root sheath and sebaceous glands. In response to UV irradiation, the elastic fibers increased in number and size, wrapping around these structures and aligning in both directions as long fibers parallel to the body axis. Electron micrographs indicated that modified epithelial cells in close proximity to the flattened epithelial cells that encircled the root sheath and sebaceous glands were the source of the elastic fibers. (+info)

Highly persistent label-retaining cells in the hair follicles of mice and their fate following induction of anagen. (7/1203)

We have identified some unusually persistent label-retaining cells in the hair follicles of mice, and have investigated their role in hair growth. Three-dimensional reconstruction of dorsal underfur follicles from serial sections made 14 mo after complete labeling of epidermis and hair follicles in neonatal mice disclosed the presence of highly persistent label-retaining cells associated with the first-generation follicle involved in the production of the first wave of hairs, commonly called the bulge. The label-retaining cells were most often found on the ventral surface of the first-generation follicle, five cell positions from the base, near the attachment site of the arrector pilorum muscle. No label-retaining cells were found in the hair canal, sebaceous gland, or hair germ. These label-retaining cells remained in the follicle following induction of anagen by plucking of the hairs. Surprisingly, they were not part of the first wave of mitotic activity following plucking, but instead underwent mitosis beginning 42 h after plucking. Label-retaining cells or their labeled daughters were not found in the hair germs through 48 h following induction of anagen by plucking, but instead remained in their subsebaceous follicular location even upon completion of the hair growth cycle 21 d later. These label-retaining cells are, therefore, unlikely to contribute to the formation of a new anagen follicle. (+info)

A rapid and dynamic regulation of GDNF-family ligands and receptors correlate with the developmental dependency of cutaneous sensory innervation. (8/1203)

Glial cell line-derived neurotrophic factor (GDNF) and neurturin (NTN) are members of the transforming growth factor-beta family and have been shown to elicit neurotrophic effects upon several classes of neurons including dopaminergic neurons, motoneurons, parasympathetic, sympathetic as well as primary sensory neurons. However, there is little information available on their roles in cutaneous innervation. Herein, we have studied the regulation of gdnf, ntn and the GDNF family receptors and examined their role in the development of facial cutaneous innervation in GDNF mutant mice. A dynamic spatial and temporal regulation of gdnf, ntn and their ligand binding receptors within the follicle-sinus complex correlate with development of distinct subclasses of sensory nerve endings. Furthermore, development of NGF-dependent myelinated mechanoreceptors, i.e. reticular and transverse lanceolate endings also require GDNF during ending formation and maintenance. In addition, ligand and receptor association seems to be intricately linked to a local Schwann cell-axon interaction essential for sensory terminal formation. Our results suggests that functionally specified nerve endings depend on different GDNF family members and that in contrast to neurotrophins, this family of neurotrophic factors may be acting at local sites of terminal Schwann cell-axon growth cone interactions and that they collaborate with neurotrophins by supporting the same populations of neurons but at different times in development. (+info)

Colombe L, Vindrios A, Michelet JF, Bernard BA (Sep 2007). "Prostaglandin metabolism in human hair follicle". Experimental ...

https://en.wikipedia.org/wiki/MPGES-2

Langbein L, Schweizer J (2005). "Keratins of the human hair follicle". Int. Rev. Cytol. International Review of Cytology. 243: ...

https://en.wikipedia.org/wiki/Keratin_1

All hair keratins are expressed in the hair follicle; this hair keratin, as well as KRTHB1 and KRTHB6, is found primarily in ... 2001). "The catalog of human hair keratins. II. Expression of the six type II members in the hair follicle and the combined ... Langbein L, Schweizer J (2005). "Keratins of the human hair follicle". Int. Rev. Cytol. International Review of Cytology. 243: ... As a type II hair keratin, it is a basic protein which heterodimerizes with type I keratins to form hair and nails. The type II ...

https://en.wikipedia.org/wiki/KRT83

All hair keratins are expressed in the hair follicle; this hair keratin, as well as KRTHB3 and KRTHB6, is found primarily in ... Langbein L, Schweizer J (2005). "Keratins of the human hair follicle". Int. Rev. Cytol. International Review of Cytology. 243: ... As a type II hair keratin, it is a basic protein which heterodimerizes with type I keratins to form hair and nails. The type II ... 1998). "A new mutation in the type II hair cortex keratin hHb1 involved in the inherited hair disorder monilethrix". Hum. Genet ...

https://en.wikipedia.org/wiki/KRT81

List of human cell types derived from the germ layers Langbein L, Schweizer J (2005). Keratins of the human hair follicle. Int ... In mammals, trichocytes are the specialized epithelial cells from which the highly mechanically resilient tissues hair and ... These cells give rise to non-hair non-keratinized IRSC (inner root sheath cell) as well. ... which facilitates chemical cross-linking of these proteins to form the tough material from which hair and nail is composed. ...

https://en.wikipedia.org/wiki/Trichocyte_(human)

hair follicles visual identification under magnification common worldwide head-to-head contact ... Microscopy of eyelash or eyebrow hair follicle, cellophane tape method (CTP), squeezing method, skin scrapings pandemic, ...

https://en.wikipedia.org/wiki/List_of_parasites_of_humans

"Aging of the Hair Follicle Pigmentation System". International Journal of Trichology. 1 (2): 83-93. doi:10.4103/0974-7753.58550 ... Some types of albinism affect only the skin and hair, while other types affect the skin, hair and eyes, and in rare cases only ... Eumelanin is found in hair, areola, and skin, and the hair colors gray, black, blond, and brown. In humans, it is more abundant ... Loss of body hair in Hominini species is assumed to be related to the emergence of bipedalism some 5 to 7 million years ago. ...

https://en.wikipedia.org/wiki/Human_skin_color

Studies in chick and mouse embryonic development suggest that the patterns of feather and hair-follicle precursors can be ... "Hierarchical patterning modes orchestrate hair follicle morphogenesis". PLOS Biology. 15 (7): e2002117. doi:10.1371/journal. ... "Emergent cellular self-organization and mechanosensation initiate follicle pattern in the avian skin". Science. 357 (6353): 811 ...

https://en.wikipedia.org/wiki/Turing_pattern

Changing patterns of cell adhesion molecules during mouse pelage hair follicle development. 1. Follicle morphogenesis in wild- ... Hardy, M. H. (1992). The secret life of the hair follicle. Trends in Genetics, 8(2): 55-61. Hardy, M. H. and Vielkind, U. (1996 ... Soon after, Margaret "had to slow down on embryonic hair follicle culture because I was culturing an embryonic human." She gave ... Hardy's curiosity-driven research inspired a new generation of stem cell scientists to use hair follicles as "an accessible and ...

https://en.wikipedia.org/wiki/Margaret_Hurlstone_Hardy_Fallding

... where they are connected to hair follicles. One or more glands may surround each hair follicle, and the glands themselves are ... The structure, consisting of hair, hair follicle, arrector pili muscles, and sebaceous gland, is an epidermal invagination ... those connected to hair follicles and those that exist independently.[3] Sebaceous glands are found in hair-covered areas, ... A sebaceous gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter ...

https://en.wikipedia.org/wiki/Sebaceous_gland

20 ratio of follicles with apocrine glands versus follicles without.[22] They have eccrine glands between hairs over most of ... Domestic animals[which?] have apocrine glands at the base of each hair follicle, but eccrine glands only in foot pads and snout ... hair follicle, sometimes nearby skin surface Distribution[edit]. The number of active sweat glands varies greatly among ... Because both apocrine glands and sebaceous glands open into the hair follicle, apocrine sweat is mixed with sebum.[41] ...

https://en.wikipedia.org/wiki/Sweat_pore

Several hairs arise from the same hair follicle. Scarring and permanent hair loss may follow. The cause is unknown. Reaction to ... Folliculitis starts with the introduction of a skin pathogen to a hair follicle. Hair follicles can also be damaged by friction ... Most common among males with curly hair. Oil folliculitis is inflammation of hair follicles due to exposure to various oils and ... Folliculitis is the infection and inflammation of one or more hair follicles. The condition may occur anywhere on hair covered ...

https://en.wikipedia.org/wiki/Folliculitis

However, 5α-reductase is expressed only in specific tissues, such as skin, hair follicles, and the prostate gland, and for this ... hairs to tiny, blonde vellus hairs. Arm, perianal, and perineal hair is reduced but may not turn to vellus hair on the latter ... Underarm hair changes slightly in texture and length, and pubic hair becomes more typically female in pattern. Lower leg hair ... Head hair may change slightly in texture, curl, and color. This is especially likely with hair growth from previously bald ...

https://en.wikipedia.org/wiki/Feminizing_hormone_therapy

... over-expression of β-catenin in hair follicles induces improper hair growth. Therefore, these signals such as Wnt inhibitors ... The bulge area at the junction of arrector pili muscle to the hair follicle sheath has been shown to host the skin stem cells ... The bulge region of the hair follicle relies on these signals to maintain the stemness of the cells. Fate mapping or cell ... A similar dependence of self-renewal potential on proximity to the niche border was reported in the context of hair follicle, ...

https://en.wikipedia.org/wiki/Stem-cell_niche

In her work with hair follicles and homeostasis, Greco has also determined a link between the lymphatic vessels of the skin and ... Greco focuses on the mammalian hair follicle in mice to study cellular homeostasis, wound repair, and cancer. Her lab uses ... Her findings show that hair germ cells are obtained from bulge stem cells, as well as suggest that hair germ cells initiate ... "Hair follicle regeneration suppresses Ras-driven oncogenic growth". The Journal of Cell Biology. 218 (10): 3212-3222. doi: ...

https://en.wikipedia.org/wiki/Valentina_Greco

... hair is not androgenic and is therefore not affected by puberty. The follicles of eyelashes are associated with a ... Since the hair is transplanted from the hair on the head, the new eyelashes will continue to grow like head hair and will need ... Demodex folliculorum (or the demodicid) is a small mite that lives harmlessly in eyelash and other hair follicles, and about 20 ... Their color may differ from that of the hair, although they tend to be dark on someone with dark hair and lighter on someone ...

https://en.wikipedia.org/wiki/Eyelash

Within the latter type, the hairs occur in structures called pilosebaceous units, each with hair follicle, sebaceous gland, and ... Gold dermatitis Hair bleach-induced Hair dye-induced Hair lotion-induced Hair spray-induced Hair straightener-induced Hair ... Uncombable hair syndrome (cheveux incoiffable, pili trianguli et canaliculi, spun-glass hair) Wooly hair nevus (woolly hair ... Hypertrichosis simplex of the scalp Intermittent hair-follicle dystrophy Keratosis pilaris atrophicans Kinking hair (acquired ...

https://en.wikipedia.org/wiki/List_of_skin_conditions

You take it with you; it's under your fingernails; it's in the hair follicles; it's in the way you smile; it's in the ride of ...

https://en.wikipedia.org/wiki/All_God's_Children_Need_Traveling_Shoes

... and hair-bearing skin. Within the latter type, hairs in structures called pilosebaceous units have a hair follicle, sebaceous ... ISBN 1-4051-3130-6. Paus R, Cotsarelis G (1999). "The biology of hair follicles". N Engl J Med. 341 (7): 491-97. doi:10.1056/ ... In the embryo, the epidermis, hair, and glands are from the ectoderm, which is chemically influenced by the underlying mesoderm ... nail disorders and hair diseases. The skin weighs an average of 4 kg (8.8 lb), covers an area of 2 m2 (22 sq ft), and is made ...

https://en.wikipedia.org/wiki/Skin_condition

In addition, heterozygote mutants displayed premature hair follicle exogen. GRCh38: Ensembl release 89: ENSG00000037474 - ...

https://en.wikipedia.org/wiki/NSUN2

The dermis is the inner layer of skin that contains blood vessels, nerves, hair follicles, oil, and sweat glands. Severe damage ... Although early versions of the scaffold were not capable of regenerating hair follicles and sweat glands, later developments by ... "Characterization of hair follicle development in engineered skin substitutes". PLOS One. 8 (6): 65664. doi:10.1371/journal.pone ...

https://en.wikipedia.org/wiki/Artificial_skin

Fu J, Hsu W (April 2013). "Epidermal Wnt controls hair follicle induction by orchestrating dynamic signaling crosstalk between ... It has been found essential for hair follicle induction. GRCh38: Ensembl release 89: ENSG00000116729 - Ensembl, May 2017 GRCm38 ...

https://en.wikipedia.org/wiki/GPR177

It has been shown to prevent the damaging effects of TGFB1 to hair follicles. It also helps to maintain skin hydration. Taurine ... We showed that taurine [...] prevented TGF-β1-induced deleterious effects on hair follicle. Janeke G, Siefken W, Carstensen S, ... August 2006). "Protective effects of taurine on human hair follicle grown in vitro". International Journal of Cosmetic Science ... as well as hair loss and tooth decay. Decreased plasma taurine concentration has been demonstrated to be associated with feline ...

https://en.wikipedia.org/wiki/Taurine

1999). "The catalog of human hair keratins. I. Expression of the nine type I members in the hair follicle". J. Biol. Chem. 274 ... As a type I hair keratin, it is an acidic protein which heterodimerizes with type II hair keratin to form hair and nails. The ... I. Human and bovine hair follicles". Differentiation. 37 (2): 137-57. doi:10.1111/j.1432-0436.1988.tb00805.x. PMID 2456239. v t ... "Genomic characterization of the human type I cuticular hair keratin hHa2 and identification of an adjacent novel type I hair ...

https://en.wikipedia.org/wiki/KRT32

Hair follicles may also undergo piloerection. It has been shown that some experiencing musical frisson report reduced ...

https://en.wikipedia.org/wiki/Frisson

They are connected to hair follicles. In acne, the follicles become clogged with black sebaceous material, forming comedones ( ... Demodicosis or mange, causing itchiness and hair loss Suppressed immune system Hair follicles that don't function properly ...

https://en.wikipedia.org/wiki/Feline_acne

Loss of desmoglein 4 leads to defective hair-follicle differentiation. Epidermolysis bullosa simplex is an epidermal blistering ...

https://en.wikipedia.org/wiki/Desmosome

It may play a role in mammalian hair follicle development. The function of this gene is largely derived from mouse studies. ... Hung BS, Wang XQ, Cam GR, Rothnagel JA (2001). "Characterization of mouse Frizzled-3 expression in hair follicle development ...

https://en.wikipedia.org/wiki/FZD3

"The Fate of Hair Follicle Melanocytes During The Hair Growth Cycle". "β-Endorphin: The Forgotten Hair Follicle Melanotropin". ... and relative sparing of white hair) in Alopecia areata (AA), with his data showing that pigmented hair follicle melanocytes are ... Tobin, D. J., Hagen, E., Botchkarev, V. A., & Paus, R. (1998). Do Hair Bulb Melanocytes Undergo Apotosis During Hair Follicle ... Tobin, D. J. (2009). "Aging of the Hair Follicle Pigmentation System". International Journal of Trichology. 1 (2): 83-93. doi: ...

https://en.wikipedia.org/wiki/Desmond_Tobin

Hair restoration surgery or scalp reduction may be considered in these instances. Hair will not regrow once the follicle is ... A hair "pull test" is performed to see if growing, or anagen, where hairs are pulled out easily. The pulled hairs are mounted ... In secondary cicatricial alopecias, destruction of the hair follicle is incidental to a non-follicle-directed process or ... there is then no possibility for regeneration of the hair follicle, and permanent hair loss results. Cicatricial alopecias are ...

https://en.wikipedia.org/wiki/Scarring_hair_loss

Bobby pins can be useful when braiding shorter hair or hair with many different layers to keep all of the hair in the French ... some styles of hair are easier to braid than others. The length of hair also plays a role in the ability to braid; shorter hair ... It results in the look of a braid standing up from the rest of the hair, instead of being under the hair. ... Compared to the simplest form of hair braid, a French braid has several practical advantages: it can restrain hair from the top ...

https://en.wikipedia.org/wiki/French_braid

Hair follicle anatomy demonstrating a healthy hair follicle (pictured left), a whitehead or closed comedo (middle picture), and ... acnes biofilm within the hair follicle worsens this process.[45] If the microcomedone is superficial within the hair follicle, ... beginning with blockage of the skin follicle by excessive dead skin cells, followed by bacterial invasion of the hair follicle ... Acne vulgaris is a chronic skin disease of the pilosebaceous unit and develops due to blockages in the skin's hair follicles. ...

https://en.wikipedia.org/wiki/Acne_vulgaris

During puberty, androgen, LH and follicle stimulating hormone (FSH) production increase and the sex cords hollow out, forming ... Masculine secondary sexual characteristics include androgenic hair, voice deepening, emergence of the Adam's apple, broadening ...

https://en.wikipedia.org/wiki/Androgen

hair) površina kože (skin surface) loj (sebum) lasni mešiček (follicle) lojnica (sebaceous gland) ...

https://sl.wikipedia.org/wiki/Lojnica

Their individual hair follicles have an active growth period that is longer than that of many other breeds of dogs; combined ... The hair on the head is left to form a "topknot", fixed in place using latex bands, because in most European countries, hair ... In most cases, whether a poodle is in a pet or show clip, the hair is completely brushed out. Poodle hair can also be "corded" ... but rather have a hair shaft shaped in an unusual way that makes the hair on their bodies curl and kink in on itself; this will ...

https://en.m.wikipedia.org/wiki/Poodle

... and hair follicles.[37][111] In accordance, DHT is involved in the pathophysiology of benign prostatic hyperplasia, pattern ... Scalp hair lossEdit. See also: Management of hair loss § Antiandrogens. 5α-Reductase inhibitors like finasteride, dutasteride, ... excessive hair growth, scalp hair loss, and high androgen levels, such as those that occur in polycystic ovary syndrome (PCOS ... are approved for the treatment of pattern hair loss, also known as scalp hair loss or baldness.[36] This condition is generally ...

https://en.m.wikipedia.org/wiki/Antiandrogen

Receptors in hair follicles called hair root plexuses[5] sense when a hair changes position. Indeed, the most sensitive ... hair follicle receptors and some free nerve endings. *Rapidly adapting type I mechanoreceptors have multiple Meissner corpuscle ... Other mechanoreceptors than cutaneous ones include the hair cells, which are sensory receptors in the vestibular system of the ... and the hair cells in the receptors of primates like rhesus monkeys and other mammals are similar to those of humans and also ...

https://en.wikipedia.org/wiki/Mechanoreceptor

FSHR (Follicle-stimulating hormone insensitivity, XX gonadal dysgenesis). *GnRHR (Gonadotropin-releasing hormone insensitivity) ... Checking for pigmentation of skin and hair.. *Checking for mirror movements of the hands or signs of neurodevelopmental delay. ... and follicle stimulating hormone (FSH).[12][24] Failure in GnRH activity can otherwise be due to the absence of the GnRH ... females at stage I with breast development and both males and females at stage III with pubic hair development).[2] ...

https://en.wikipedia.org/wiki/Kallmann_syndrome

positive regulation of hair follicle development. • chronic inflammatory response to antigenic stimulus. • cellular response to ...

https://en.wikipedia.org/wiki/TNF-alpha

Root sheath, the inner or epidermic coat around the root of a hair follicle ...

https://en.wikipedia.org/wiki/Sheath

A pencil drawing by Nash called "Urne Buriall: Teeth, Bones and Hair" is held by Birmingham Museums Trust. ... follicle', 'generator', 'gymnastic', 'hallucination','herbaceous', 'holocaust', 'insecurity', 'indigenous', 'jocularity', ' ...

https://en.wikipedia.org/wiki/Thomas_Browne

Hairs - smooth muscle in hair follicles makes your hair stand up when you are scared or get cold. ...

https://simple.wikipedia.org/wiki/Muscles

The sisters had complete pubic hair maturation (i.e., Tanner stage V), while the brother had Tanner stage II pubic hair ... Follicle-stimulating hormone and luteinizing hormone levels were considerably elevated (30-33 mIU/mL and 34-37 mIU/mL, ... follicle-stimulating hormone and luteinizing hormone levels were 6.7-19.1 mIU/mL and 5.8-13.2 mIU/mL, respectively), and ... The patient also had early-onset temporal hair loss.[7] He reported no history of gender identity disorder, considered himself ...

https://en.wikipedia.org/wiki/Estrogen_insensitivity_syndrome

Carbuncles and boils are types of abscess that often involve hair follicles, with carbuncles being larger.[7] ...

https://en.wikipedia.org/wiki/Abscess

... tuberculous granulomas with surrounding lymphocytes clustered around hair follicles may be seen; additionally, infiltrates of ...

https://en.m.wikipedia.org/wiki/Childhood_granulomatous_periorificial_dermatitis

The living part of hair is under the scalp skin where the hair root is housed in the hair follicle. The entire follicle and ... but are actually intertwined because hair grows from beneath the skin. The living parts of hair (hair follicle, hair root, root ... Hair coloring[edit]. Hair coloring is the process of adding pigment to or removing pigment from the hair shaft. Hair coloring ... Chemical alteration of hair only affects the hair above the scalp; unless the hair roots are damaged, new hair will grow in ...

https://en.wikipedia.org/wiki/Hair_care

Krause, K; Foitzik, K (2006). "Biology of the Hair Follicle: The Basics". Seminars in Cutaneous Medicine and Surgery 25: 2. doi ... Answers to several questions related to hair from curious kids. *How to measure the diameter of your own hair using a laser ... முடி, மயிர் அல்லது சிகை (Hair) என்பது அடித்தோலில் (dermis) காணப்படும் மயிர்க்கால்களிலிருந்து வளரும் இழை வடிவமுடைய உயிரியப் ... Feughelman, Max Mechanical properties and structure of alpha-keratin fibres: wool, human hair and related fibres, Sydney, UNSW ...

https://ta.wikipedia.org/wiki/மயிர்

Follicle stimulating hormone (FSH), luteinizing hormone (LH), and human chorionic gonadotropin (hCG), through control of ... Later the development of the nipple rendered mammary hairs obsolete.[2] Another well known example of nourishing young with ... and hairs on this patch transported the nourishing fluids to the eggs as is seen in marsupials. ...

https://en.wikipedia.org/wiki/Lactation

Allergies to pollen or animal hair are also a common cause.[2] Diagnosis is often based on signs and symptoms.[1] Occasionally ... particularly numerous lymphoid follicles on the tarsal conjunctiva, and sometimes a punctate keratitis are seen. ...

https://en.wikipedia.org/wiki/Pink_Eye

In animals such as dogs and cats, protein maintains the health and quality of the skin by promoting hair follicle growth and ... and keratin is found in hard or filamentous structures such as hair, nails, feathers, hooves, and some animal shells.[41] Some ... the protein component of hair and nails. Membrane proteins often serve as receptors or provide channels for polar or charged ...

https://en.m.wikipedia.org/wiki/Protein_synthesis

The Msx2 gene associated with hair follicle maintenance is also linked to the closure of the parietal eye in mammals, ... Hair and fur[edit]. See also: Evolution of hair. The first clear evidence of hair or fur is in fossils of Castorocauda and ... the discovery of hair remnants in Permian coprolites pushes back the origin of mammalian hair much further back in the synapsid ... It provides the earliest absolutely certain evidence of hair and fur. Previously the earliest was Eomaia, a crown group mammal ...

https://en.wikipedia.org/wiki/Evolution_of_mammals

Androgens are also responsible for secondary sex characteristics such as facial hair and increased muscle mass. ... Schally AV, Kastin AJ, Arimura A (November 1971). "Hypothalamic follicle-stimulating hormone (FSH) and luteinizing hormone (LH ...

https://fa.wikipedia.org/wiki/سرطان_پروستات?match=en

The membrane has no hair follicles or sweat glands, except between the fingers.[54][56] For bat embryos, apoptosis (cell death ... Like many other species, they have hair specialised for retaining and dispersing secretions. Such hair forms a conspicuous ... as well as hair follicles, sweat glands and a fatty subcutaneous layer, is very different from the skin of the wing membrane. ... These sensitive areas are different in bats, as each bump has a tiny hair in the centre, making it even more sensitive and ...

https://en.m.wikipedia.org/wiki/Bat

Hair follicle aging. A key aspect of hair loss with age is the aging of the hair follicle.[45] Ordinarily, hair follicle ... The affected area mainly contains vellus hair follicles or no hair follicles at all, but it does not expand. Its causes are ... Drug Induced Hair Loss', American Hair Loss Association: "American Hair Loss Association - Drug Induced Hair Loss". Archived ... This debris can block hair follicles and cause their deterioration and consequent miniaturization of hair.[citation needed]. It ...

https://en.m.wikipedia.org/wiki/Alopecia

Hair shaft. *Cuticle. *Cortex. *Medulla. *Bulb with matrix cells. *Hair follicle. Muscle. *Arrector pili muscle ...

https://en.wikipedia.org/wiki/Stratum_lucidum

The sweat gland is in the layer of skin called the dermis along with other "equipment," such as nerve endings, hair follicles ... They are larger than eccrine glands and they normally end in hairs rather than pores. Also, they do not do anything until ... Sweat itself has no odor, but when bacteria on the skin and hair metabolize the proteins and fatty acids, they produce an ...

https://simple.m.wikipedia.org/wiki/Sweat

Hair shaft. Cuticle · Cortex · Medulla · Bulb with matrix cells · Hair follicle. Masûlke ...

https://ku.wikipedia.org/wiki/Şablon:Sîstema_çermdariyê

Hair shaft. *Cuticle. *Cortex. *Medulla. *Bulb with matrix cells. *Hair follicle. Muscle. *Arrector pili muscle ...

https://en.wikipedia.org/wiki/Dermoepidermal_junction

Carbuncles are an abscess in the hair follicles.[3] An abscess is usually caused by a bacterial infection.[4] Often many ...

https://simple.wikipedia.org/wiki/Abscess

External light activates hair follicle stem cells through eyes via an ipRGC-SCN-sympathetic neural pathway Sabrina Mai-Yi Fan, ... A genetic basis of variation in eccrine sweat gland and hair follicle density Yana G. Kamberov, Elinor K. Karlsson, Gerda L. ... Axin2 marks quiescent hair follicle bulge stem cells that are maintained by autocrine Wnt/β-catenin signaling Xinhong Lim, Si ... FOXC1 maintains the hair follicle stem cell niche and governs stem cell quiescence to preserve long-term tissue-regenerating ...

https://www.pnas.org/keyword/hair-follicle

There is still hair around the area that I have it which ind... ... Hair follicle? yooyoo Whats up guys. I am just curious and a ... There is still hair around the area that I have it which indicates that it is probably an inflamed hair follicle. I have ... There is still hair around the area that I have it which indicates that it is probably an inflamed hair follicle. I have ... Hair follicle?. Whats up guys. I am just curious and a little nervous about something that showed up. I have a tiny red bump on ...

https://www.medhelp.org/posts/Herpes/Hair-follicle/show/1513916

Aged hair follicles are no longer as prepared for new hair growth. ... Aged hair follicles are no longer as prepared for new hair growth. ...

https://medlineplus.gov/ency/imagepages/8670.htm

The follicle also contains a hair and an oil gland (sebaceous gland). The oil gland helps remove old skin cells, keeps the ... Each pore on the surface of the skin is an opening to a canal called a follicle. ... Each pore on the surface of the skin is an opening to a canal called a follicle. The follicle also contains a hair and an oil ...

https://medlineplus.gov/ency/imagepages/19666.htm

... hairs just like the hairs that I have growing in other follicles. (Two or more hairs growing out from the same follicle) So ... it was just there next to a hair follicle (my hair follicles a bit bumpy too) but this one was a bit bigger. I thought it could ... Warts are not associated with hairs; by definition, hair follicles are. In normal medical terminology, there is no such thing ... now I believe that it was just a slightly inflamed hair follicle or some kind of ingrown hair encapsulated inside a hair ...

https://www.medhelp.org/posts/STDs/hair-follicle-or-wart/show/1498378

... if they even do a hair test at all? Im not sure if they only ... out there knows how far back they test your hair follicles for ... I have done the hair test for IPN. The hair test looks back at a 3 month period or longer. Depends on your hair length. Since ... This thread has NOTHING to do with UDS and everything to do with hair follicle testing.. This thread has NOTHING to do with ... Hair follicle testing?? March 2018 Top 8 Captions Poll Now Available! Help Select the $100 Winner. ...

http://allnurses.com/nurses-recovery/hair-follicle-testing-808651.html

Folliculitis can make these hair follicles red and swollen.. You can get this condition anywhere you have hair, but its most ... Boils and carbuncles: A boil (a red bump that can be tender or painful) happens when a hair follicle is seriously infected. A ... You have hair follicles just about everywhere except your lips, your palms, and the soles of your feet. ... You might want to try an electric razor or hair removal products (depilatories) or other ways to remove hair. If those dont ...

https://www.webmd.com/skin-problems-and-treatments/what-is-folliculitis?page=2

Hair follicles experience several changes with aging, the most noticeable of which is graying of the hair shaft due to loss of ... Histopathology of aging of the hair follicle.. Fernandez-Flores A1,2,3, Saeb-Lima M4,5, Cassarino DS6. ... It is related to a decrease in the number and activity of the melanocytes of the hair bulb, which eventually completely ... Residual non-active melanocytes remain in the outer root sheath and in the bulge, which allows for repigmentation of the hair ...

https://www.ncbi.nlm.nih.gov/pubmed/30932205

... a follicle stimulator stimulates the hair follicle thereby promotes hair growth as well as reverses the process of hair loss. A ... a follicle stimulator stimulates the hair follicle thereby promotes hair growth as well as reverses the process of hair loss. A ... Pearl stimulates hair follicles to help hair growth, and leaves hair thicker, softer, shiner and naturally healthy. ... Pearl Powder can significantly reverse the effects of hair loss. This hair follicle simulator helps spark new hair growth and ...

https://selfgrowth.com/articles/benefits-of-using-a-hair-follicle-stimulator

Ordinarily, hair follicle renewal is maintained by the stem cells associated with each follicle. Aging of the hair follicle ... A club hair is formed during the catagen phase when the part of the hair follicle in contact with the lower portion of the hair ... The club hair is the final product of a hair follicle in the telogen stage, and is a dead, fully keratinized hair. Fifty to one ... A hair follicle consists of : The papilla is a large structure at the base of the hair follicle. The papilla is made up mainly ...

https://en.wikipedia.org/wiki/Hair_follicle

How long would that amount of marijuana stay in my system for a hair follicle test? ... I want to get some opinions on the likelihood of passing a hair follicle test. I smoked most of September at least 3 times a ... Hair Follicle Marijuana Test I want to get some opinions on the likelihood of passing a hair follicle test. I smoked most of ... Any way to pass hair follicle test for marijuana [ 5 Answers ] I have to take hair follicle drug test is there anything I can ...

https://www.askmehelpdesk.com/addictions/hair-follicle-marijuana-test-803719.html

HAIRFINITY fills in the gaps left by your regular diet to provide your body with the nutrition it needs for healthy hair, 60 ... capsules., Hairfinity, BrockBeauty Hair Vitamins 60ct, New, SK-007E89-001, 850497003202, 98023. ... I am a big fan of Hairfinity, they really give your hair a boost, and my hair grows faster using this, than any other hair pill ... Not only does it help your hair grow, it also makes your hair thicker and the hair texture healthier. Extremely happy with this ...

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Hair follicle nevus is a cutaneous condition that presents as a small papule from which fine hairs protrude evenly from the ...

https://en.wikipedia.org/wiki/Hair_follicle_nevus

De novo hair follicle formation in embryonic skin and new hair growth in adult skin are initiated when specialized mesenchymal ... Hair Follicle Morphogenesis and Differential Expression of Lef1-RFP and K14-H2BGFP in All Cells of the Mature Follicle ... C) Detection of neuronal/neural crest genes in highly enriched hair follicle preparations. Highly enriched follicle ... Molecular dissection of mesenchymal-epithelial interactions in the hair follicle.. Rendl M1, Lewis L, Fuchs E. ...

https://www.ncbi.nlm.nih.gov/pubmed/16162033?dopt=Abstract

Alternatively, find an appropriate hair treatment such as a white vinegar mix to wash the chemical residue out of... ... The easiest way to pass a hair follicle test is to refrain from drug use entirely. ... What is an infected hair follicle?. A: An infected hair follicle, also known as folliculitis, occurs whenever a hair follicle ... How can you treat an infected hair follicle?. A: Treatment for an infected hair follicle depends on both the source of the ...

https://www.reference.com/health/pass-hair-follicle-test-f13bee3c931bf56e

There are two types of hair follicle tumors, trichoepitheliomas, which arise from cystic hair follicles (follicles that have ... which arise from the cells that produce the hair follicles. ... generally benign tumors that originate in the hair follicles in ... Hair follicle tumors are generally benign tumors that originate in the hair follicles in the skin. There are two types of hair ... Hair follicle tumors should be immediately evaluated by a veterinarian. The prognosis for these hair follicle tumors is ...

https://www.petmd.com/dog/conditions/skin/c_dg_hair_follicle_tumors

The importance of the hair follicle in skin biology, however, does not … ... Clinical conditions causing hair loss, such as androgenetic alopecia, alopecia areata, and scarring alopecia, can be ... The importance of the hair follicle in skin biology, however, does not rest solely with its ability to produce hair. Hair ... Molecular mechanisms regulating hair follicle development J Invest Dermatol. 2002 Feb;118(2):216-25. doi: 10.1046/j.0022-202x. ...

https://pubmed.ncbi.nlm.nih.gov/11841536/

A.F.D delivers the hair regrowth medication directly to the outer root sheath of the hair follicle. ... The Advanced Follicle Direct (AFD) hair regrowth program is a breakthrough in the treatment of Androgenetic Alopecia, which is ... Advanced Hair Studio is very excited to be able to bring the unique benefits and results obtained from this hair loss ... a clinically proven scalp and follicle treatment program) all of which is included and supervised at your nearest Advanced Hair ...

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When a wound occurs in an adult person, hair follicle growth is blocked and the skin heals with a scar. However, hair does ... Conversely, when Fgf9 was increased, there was a two- to three-fold increase in the number of new hair follicles, equal to the ... In adult mice, the amount of Fgf9 secreted modulates hair-follicle regeneration after wounding. When Fgf9 was reduced, there ... Growth Factor Responsible For Triggering Hair Follicle Generation During Wound Healing Identified. by editor ...

http://www.redorbit.com/news/health/1112863498/growth-factor-responsible-for-triggering-hair-follicle-generation-during-wound-healing-identified/

... diagnostic approach to diseases causing hair loss, and the most commonly occurring nonscarring alopecias. ... Part One of a two part series discussing the structure and function of hair follicles, ... In this article (Part I of II), the structure and function of hair follicles, the diagnostic approach to diseases causing hair ... Exceeding hair loss (defined as more than 100 hairs/d) may be due to either changes of the physiologic cycle of hair growth or ...

https://www.medscape.com/viewarticle/483591

... and originate in hair follicles rather than in skin layers, a new study finds. ... Some of the most deadly skin cancers may start in stem cells that lend color to hair, ... Some of the most deadly skin cancers may start in stem cells that lend color to hair, and originate in hair follicles rather ... Hair follicles are complex organs that reside within skin layers. It is there that immature pigment-making cells develop cancer ...

https://www.news-medical.net/news/20191104/Some-skin-cancers-may-originate-in-hair-follicles.aspx

The main advantages of hair follicle drug testing include a longer detection period, a lower chance of mistakes on the test, ... In the standard hair follicle drug testing, hairs are usually removed from the head, by cutting them as close to the scalp as ... one often-cited hair follicle drug testing advantage is that evaluation of hair may show drug use as far back as 90 days. ... Testing the hair follicle is often thought of as more effective than urine or blood testing. While advantages of this form of ...

http://www.wisegeek.com/what-are-the-advantages-of-hair-follicle-drug-testing.htm

There are many different types of hair follicle treatment, depending on the underlying cause of the condition. The most common ... The hair follicle, through which a hair emerges from the skin, can become infected and inflamed. This is known as folliculitis ... Hair follicle treatment can also address a deep skin infection, such as eosinophilic folliculitis. The exact cause of this is ... Hair follicle treatment will vary, depending on whether the patient has a bacterial, fungal, or viral infection. The first step ...

https://www.wisegeek.com/what-are-the-different-types-of-hair-follicle-treatment.htm

Commensal microbes induce hair follicles to release a chemokine that recruits regulatory T cells into neonatal skin. ... Commensal microbes induce hair follicles to release a chemokine that recruits regulatory T cells into neonatal skin. ... Commensal microbes induce hair follicles to release a chemokine that recruits regulatory T cells into neonatal skin. ...

http://stke.sciencemag.org/content/10/475/eaan4459

Unexpectedly, the regenerated hair follicles originated from non-hair-follicle stem cells.. â Weâ ve found that we can ... Growth of regenerated hair follicles over 45 days. Arrows indicate hair shaft. The bulge is the area from which new hair shafts ... The average human head has about 100,000 hair follicles. Each follicle can grow about 20 individual hairs in a persons ... Unexpectedly, the regenerated hair follicles originated from non-hair-follicle stem cells. ...

http://www.rxpgnews.com/dermatology/First_Demonstration_of_New_Hair_Follicle_Generation_28407.shtml

Quantification of Eccrine Gland and Hair Follicle Number.. Eccrine gland and hair follicle number was scored by averaging the ... they are not replaced by hair follicles. The footpad region is not inherently incapable of forming hair follicles, as ... A genetic basis of variation in eccrine sweat gland and hair follicle density. Yana G. Kamberov, Elinor K. Karlsson, Gerda L. ... 1 D and E). Comparison of eccrine gland and hair follicle number in F2 individuals shows that, at the extremes, there is an ...

https://www.pnas.org/content/112/32/9932?ijkey=4f215e5c2d17b14549f62be935c8a7ba906c5a0e&keytype2=tf_ipsecsha

A hair follicle drug test can be used to detect drugs used over the past 90 days. A second screen is used to confirm positive ... What is a hair follicle drug test?. A hair follicle drug test, also known as a hair drug test, screens for illicit drug use and ... Hair follicle vs. urine drug test. The main difference between a hair follicle drug test and a urine drug test is the window of ... Your hair follicle test might take place in a lab or within a hospital setting. Or your workplace may perform the test using a ...

https://www.healthline.com/health/hair-follicle-drug-test

A newly described transcription factor maintains the stem cells in the hair follicle in an undifferentiated state, preventing ... A newly described transcription factor maintains the stem cells in the hair follicle in an undifferentiated state, preventing ...

http://science.sciencemag.org/content/312/5782/1946/tab-figures-data

However, bald spots that exhibit little to no hair growth may still have some resting follicles that are still alive. In these ... If hair follicles are truly dead, they cannot be revived. ... If hair follicles are truly dead, they cannot be revived. ... Mayo Clinic suggests hair transplants and scalp reduction to replace or remove dead follicles and restore hair growth to bald ... Since topical treatments do not revive dead hair follicles, surgical intervention is needed to restore hair growth. ...

https://www.reference.com/world-view/revive-dead-hair-follicles-8d090deab6d66a9c

Sheep Skin Hair Follicles. FITC-Texas Red Bandpass Emission (Dual Band Excitation) Set. Fluorescence emission intensity from a ... the nuclei and the green emission from glycoproteins in the cytoplasm and membrane components of the individual hair follicles. ...

https://www.microscopyu.com/gallery-images/sheep-skin-hair-follicles

Following up on earlier work, which showed that increased signaling from the Wnt pathway doubled the number of new hair follicles, the Penn team looked further upstream in the pathway and identified an important cascade of signals that prompt further expression, as well as perpetuate and amplify signals sent during a crucial phase of hair-follicle regeneration. (redorbit.com)
In adult mice, the amount of Fgf9 secreted modulates hair-follicle regeneration after wounding. (redorbit.com)
This suggests that the embryonic window created by the wound-healing process can be used to manipulate hair-follicle regeneration, leading to novel ways to treat hair loss and hair overgrowth. (rxpgnews.com)
This development clarifies the relationship between the DS and the DP and confirms that DSC cells play a critical role in hair follicle regeneration by repopulating the dermal papilla cells at the end of the telogen (resting) phase of the normal hair cycle. (bernsteinmedical.com)
The senescence of HF-MSCs will not only decrease self-renewal and multipotent capacities but also affect hair growth and regeneration. (hindawi.com)
If the stem cells and sebaceous gland are destroyed, there is no possibility for regeneration of the hair follicle, and permanent hair loss results. (clinicaltrials.gov)
Wnt signaling is a critical regulator for hair follicle regeneration. (medsci.org)
We then compared the phenotypes and expression patterns following β-catenin knockdown and Wnt5a overexpression during hair follicle regeneration induced by hair depilation and observed similar patterns. (medsci.org)
Our data reveal that Wnt5a suppresses the activation of β-catenin signaling during hair follicle regeneration. (medsci.org)
Amoh Y, Kanoh M, Niiyama S, Hamada Y, Kawahara K, Sato Y, Hoffman RM, Katsuoka K (2009) Human hair follicle pluripotent stem (hfPS) cells promote regeneration of peripheral-nerve injury: an advantageous alternative to ES and iPS cells. (springer.com)
Here, we demonstrate the central role of Dlx3 as a crucial transcriptional regulator of hair formation and regeneration. (biologists.org)
The most striking defects in the conditional knockout mice were complete alopecia owing to a failure in hf development, concomitant with lack of expression of transcriptional regulators necessary for the differentiation of the IRS and hair shaft, and inability to undergo cyclic regeneration postnatally. (biologists.org)
The SGs are thought to facilitate the coordinated breakdown of the inner root sheath (IRS) during the hair cycle, and thus may be critical for follicular regeneration (Stenn, 2001). (pubmedcentralcanada.ca)
We discovered that the dynamics of the hair follicle regeneration is a two-step process," said Valentina Greco, a visiting postdoctoral fellow who spearheaded the project. (belgraviacentre.com)
Under the right conditions - winter season or a new physiological stage in an organism's life such as puberty - a collective regeneration wave can sweep through the skin, activating hair stem cells in individual follicles and those in front of them, by the tens of thousands. (nutritionreview.org)

A hair follicle consists of : The papilla is a large structure at the base of the hair follicle. (wikipedia.org)
contradictory] Around the papilla is the hair matrix. (wikipedia.org)
The differences in appearance and texture of hair are due to many factors: the position of the hair bulb relative to the hair follicle, size and shape of the dermal papilla, and the curvature of the hair follicle. (wikipedia.org)
the restriction of capillary blood flow "kills off" the papilla (root of the follicle). (selfgrowth.com)
De novo hair follicle formation in embryonic skin and new hair growth in adult skin are initiated when specialized mesenchymal dermal papilla (DP) cells send cues to multipotent epithelial stem cells. (nih.gov)
The follicular papilla rises closer to the isthmus and infundibulum, the permanent parts of the follicle. (medscape.com)
The addition of applying topical nutrition with a Trichogen-based follicle stimulation provides enhanced scalp stimulation and micro-circulation necessary for improved blood flow and nutrient delivery to the papilla, bulb and root. (healthyhairplus.com)
The number of dermal papilla (DP) cells in a hair follicle has been found to be a determining factor as to when the anagen (growth) phase of the hair cycle is initiated. (bernsteinmedical.com)
Liu F, Uchugonova A, Kimura H, Zhang C, Zhao M, Zhang L et al (2011) The bulge area is the major hair follicle source of nestin-expressing multipotent stem cells which can repair the spinal cord compared to the dermal papilla. (springer.com)
Hair follicle dermal papilla cells (HFDPC) are a specialized cell population located in the bulge of the hair follicle with unique characteristics such as aggregative behavior and the ability to induce new hair follicle formation. (mdpi.com)
Moreover, hair follicle dermal papilla cells have been shown to differentiate into all mesenchymal lineages, but their differentiation potential has only been tested in 2D cultures. (mdpi.com)
When a new hair is produced, from the hair follicle, a new cycle begins with the interaction of the epithelial cells that surround the hair shaft and the dermal papilla cells at the base of the follicle bulb. (hishairclinic.com)
The researchers believe that toward the end of the resting phase, the hair germ is activated to reproduce before the bulge and they showed that the activating signal comes from a structure known as the dermal papilla. (belgraviacentre.com)
The hair germ, which is in constant contact with the dermal papilla, gets activated first and the bulge is then called to contribute later during growth. (belgraviacentre.com)
Dr. Bauman often travels to international medical conferences such as the World Congress for Hair Research to hear the latest innovations from researchers and companies aiming to perform and perfect hair follicle cultures, hair follicle and dermal papilla multiplication or induction using stem cells, IPSCs for hair regrowth, and more, as these breakthroughs may eventually be considered "the holy grail" of hair transplantation! (baumanmedical.com)

Well known diseases of the hair follicle include alopecia or hair loss, hirsutism or excess hair growth and lupus erythematosus. (wikipedia.org)
Additional changes in the diameter and length of the hair have contributed to the concept of senescent alopecia, which is different from androgenetic alopecia according to most. (nih.gov)
Hair loss (alopecia) is a common disorder in dogs which causes the animal to have partial or complete hair loss. (petmd.com)
Clinical conditions causing hair loss, such as androgenetic alopecia, alopecia areata, and scarring alopecia, can be psychologically devastating to individuals and are the target of a multimillion dollar pharmaceutical industry. (nih.gov)
The Advanced Follicle Direct (AFD) hair regrowth program is a breakthrough in the treatment of Androgenetic Alopecia, which is a common form of hair loss in both men and women. (advancedhair.com.au)
In this article (Part I of II), the structure and function of hair follicles, the diagnostic approach to diseases causing hair loss, and the most common nonscarring alopecias (telogen effluvium, anagen effluvium, androgenetic alopecia, and alopecia areata) are reviewed in regard to pathogenesis, clinical findings, and current options of treatment. (medscape.com)
Effluvium means the active shedding of hair, which may lead to alopecia, the visible result of hair loss. (medscape.com)
If researchers can effectively control hair growth, then they could potentially find cures for people with hair and scalp disorders, such as scarring alopecia where the skin scars, and hair overgrowth. (rxpgnews.com)
Both men and women with common baldness -- also known as androgenetic alopecia -- can use over-the-counter treatments containing minoxidil twice daily to stimulate damaged hair follicles, encouraging hair growth. (livestrong.com)
Hair is the second fastest dividing cell, and this is the reason why many chemotherapy drugs cause alopecia. (news-medical.net)
Scalp cooling is currently the only treatment to combat 'chemotherapy-induced alopecia', yet little is known about its cytoprotective effect on human hair follicles. (news-medical.net)
This process, called miniaturization, plays out over multiple hair cycles and has been shown to be the primary contributor to androgenetic alopecia and eventual baldness. (bernsteinmedical.com)
Serenoa Serrulata is saw palmetto and is a herbal remedy for a type of hair loss and baldness called androgenic alopecia, or male- and female-pattern baldness. (truthinaging.com)
In the future, this work can inspire a strategy for stimulating hair growth in patients with conditions ranging from alopecia to baldness. (eurekalert.org)
The outcomes of this study hopefully will allow new therapies for especially scarring alopecia conditions where hair follicles are completely lost and there are no current therapies. (clinicaltrials.gov)
Randomized, Single-centre, Double-blind, Placebo-controlled, Phase I / IIa Study to Evaluate the Safety and Efficacy of Human Autologous Hair Follicle Dermal Sheath Cup Cells (DSCC) in Women and Men With Androgenetic Alopecia. (clinicaltrials.gov)
The selective ablation of Dlx3 in the epidermis results in complete alopecia owing to failure of the hair shaft and inner root sheath to form, which is caused by the abnormal differentiation of the cortex. (biologists.org)
At the front-lines of this cutting-edge research stands Vancouver's " RepliCel Life Sciences Inc. ", a regenerative medicine company using cells taken from a patient's own hair follicles for the purpose of treating Androgenetic Alopecia ( Male Pattern Baldness ), aging skin and even chronic tendinosis. (hairlosstalk.com)
These findings suggest that if [chronic graft-versus-host disease] of the hair follicle represents a distinct type of alopecia, revision to the current diagnostic NIH consensus framework should be considered to include new sclerotic or nonscarring alopecia as a diagnostic criterion for [chronic graft-versus-host disease]," Lauren R. Penzi , MD, of the department of dermatology at Massachusetts General Hospital, Boston, and colleagues wrote. (healio.com)
Y chromosomes were also identified at the precise hair follicle location of the inflammatory infiltrate, surrounding the hair bulb in nonscarring alopecia cases and at the hair follicle bulge in sclerotic alopecia, respectively. (healio.com)
Finally, targeted deletion of PPARγ in follicular stem cells in mice causes a skin and hair phenotype that emulates scarring alopecia. (pubmedcentralcanada.ca)
Cicatricial or scarring alopecia (CA) are a diverse group of hair disorders that cause permanent destruction of the pilosebaceous unit. (pubmedcentralcanada.ca)
It is hypothesized that the permanent destruction of hair follicles in scarring alopecia may be because of destruction of hair follicle stem cells located in the follicular bulge region ( Cotsarelis and Millar, 2001 ). (pubmedcentralcanada.ca)
The data suggest a new approach to androgenic alopecia, the most common form of alopecia in aging males: It may be easier to get hair follicles growing again by improving their environment, rather than implanting stem cells. (nutritionreview.org)
Scarring hair loss, also known as cicatricial alopecia, is the loss of hair which is accompanied with scarring. (wikipedia.org)

It involved the cultivation of cells isolated from human hair follicles in the lab. (news-medical.net)
Overall, the researchers showed that human embryonic stem cell media could be used to isolate and expand a novel population of multipotent adult stem cells from human hair follicles. (webwire.com)
Although we are just at the start of this research, our findings suggest that human hair follicles may provide an accessible, individualized source of stem cells, says Xu. (webwire.com)
Here, we present a protocol to isolate NCSCs from human hair follicles based on their specific surface-marker expression of CD271/HNK1 or CD271/CD49D (alpha4 integrin). (springer.com)
Yu H et al (2006) Isolation of a novel population of multipotent adult stem cells from human hair follicles. (springer.com)
Yu H, Kumar SM, Kossenkov AV, Showe L, Xu X (2010) Stem cells with neural crest characteristics derived from the bulge region of cultured human hair follicles. (springer.com)

Folliculitis is a common skin problem that happens when you get bacteria or a blockage in a tiny pocket in your skin called a hair follicle. (webmd.com)
Folliculitis can make these hair follicles red and swollen. (webmd.com)
Superficial folliculitis is when only part of the follicle is damaged, while deep folliculitis is when the whole follicle is damaged. (webmd.com)
An infected hair follicle, also known as folliculitis, occurs whenever a hair follicle becomes inflamed due to a fungal infection or bacteria, according to. (reference.com)
Folliculitis occurs when the hair follicle becomes inflamed, and it is effectively treated by using medicated shampoo or applying a warm compress of saltwa. (reference.com)
Hair follicle treatment for pityrosporum folliculitis also requires an antifungal medication, which may be taken orally or applied topically to the skin. (wisegeek.com)
Hair follicle treatment can also address a deep skin infection, such as eosinophilic folliculitis. (wisegeek.com)
Patients with folliculitis caused by bacterial infections will often require antibiotics for successful hair follicle treatment. (wisegeek.com)
Folliculitis : A bacterial infection of the hair follicle. (med-help.net)
The medical term for an infected hair follicle is folliculitis, which is often associated with shaving. (livestrong.com)
According to MayoClinic.com, folliculitis develops when bacteria enters one or more hair follicles. (livestrong.com)
Folliculitis first develops as a red bump around the hair follicle. (livestrong.com)
Shaving in the same direction that your hair grows is less irritating and may reduce instances of folliculitis. (livestrong.com)
Folliculitis (otherwise called "Hot Tub Rash") is the spoiling and aggravation of one or more hair follicles. (omicsonline.org)
Folliculitis begins when hair follicles are harmed by grinding from apparel, a bug bite blockage of the follicle, shaving, or plaits too tight and excessively near the scalp. (omicsonline.org)
By and large of folliculitis, the harmed follicles are then spoiled with the bacterium Staphylococcus. (omicsonline.org)

Residual non-active melanocytes remain in the outer root sheath and in the bulge, which allows for repigmentation of the hair under certain stimuli or conditions. (nih.gov)
A.F.D delivers the hair regrowth medication directly to the outer root sheath of the hair follicle. (advancedhair.com.au)
The medication is absorbed under the tongue and once dissolved is delivered within 10 minutes directly within to the outer root sheath of the hair follicle. (advancedhair.com.au)
In this work, we characterized hair follicle stem cells (HFSCs) isolated from HS patients and more precisely the outer root sheath cells (ORSCs). (jci.org)
Basal outer root sheath cells (ORS) attached to the hair follicle glassy membrane (GM) were isolated and cultured, where they revealed greater replicative potential and longevity than ORS cells from plucked fibres. (hairfacts.com)

A) Schematic depicts follicle morphogenesis, which begins in waves in mouse backskin at approximately embryonic day 15 (~E15) and is complete at approximately postnatal day 4 (~P4). (nih.gov)
These diseases result from inappropriate activation of signaling pathways that regulate hair follicle morphogenesis. (nih.gov)
The Hair Follicle Development Pathway has been researched in relation to Hair Follicle Morphogenesis, Anagen, Hair Cycle, Catagen, Cell Proliferation. (novusbio.com)
Using hair bud morphogenesis as a paradigm, we employed mutant mouse models and cultured keratinocytes to dissect the contributions of multiple extracellular cues in orchestrating adhesion dynamics and proliferation to shape the cluster of cells involved. (nih.gov)
Histology revealed that after 2 or 3 weeks in combined culture, cell interactions and tissue morphogenesis had resulted in the formation of irregular but recognizable hair fibres, produced from unusual bulb structures. (hairfacts.com)
Colocalization of phospho-Smad1/5/8 and Dlx3 is consistent with a regulatory role for BMP signaling to Dlx3 during hair morphogenesis. (biologists.org)
Taken together with hair follicle abnormalities in humans with Tricho-Dento-Osseous (TDO) syndrome, an autosomal dominant ectodermal dysplasia linked to mutations in the DLX3 gene, our results establish that Dlx3 is essential for hair morphogenesis, differentiation and cycling programs. (biologists.org)
After early follicle morphogenesis, the hf undergoes cyclic transformations known as anagen (growth phase), catagen (regression) and telogen (resting phase), allowing the study of essential stages of proliferation and differentiation ( Schmidt-Ullrich and Paus, 2005 ). (biologists.org)

The first stage is called anagen and is the active growth phase, telogen is the resting stage, catagen is the regression of the hair follicle phase, exogen is the active shedding of hair phase and lastly kenogen is the phase between the empty hair follicle and the growth of new hair. (wikipedia.org)
Figure 1 shows the anatomy of a normal anagen follicle. (medscape.com)
In anagen, the scalp follicles reach into the subcutaneous fat and the hair is produced by rapidly dividing keratinocytes within the keratogenous zone. (medscape.com)
Scheme of a normal anagen hair follicle. (medscape.com)
And without enough DP cells to trigger the anagen phase, the follicle begins to miniaturize. (bernsteinmedical.com)
This imbalance in quiescent versus activating signals likely promoted a prolonged anagen-like hair follicle state after the second catagen, which exhausted stem cells over time ultimately resulting in hair loss in aged mice. (sigmaaldrich.com)
Furthermore, it induces the anagen (growth) phase of the hair cycle, perhaps by having a protective action on transforming-growth-factor-beta1-induced apoptosis. (truthinaging.com)
Previously, we reported that Wnt5a inhibits the telogen-to-anagen transition of hair follicles, but the mechanism by which this process occurs has not yet been reported. (medsci.org)
Each hair follicle goes through a hair growth lifecycle of anagen (growth), catagen (regression), and telogen (resting), then back to anagen. (belgraviacentre.com)
The state of each automaton changes according to rules that dictate whether hair on a human scalp or in an animal's fur coat will be caught up in waves of growth called the anagen phase, or remain in the resting or telogen phase. (nutritionreview.org)
A hair "pull test" is performed to see if growing, or anagen, where hairs are pulled out easily. (wikipedia.org)

At the base of the hair follicle are sensory nerve fibers that wrap around each hair bulb. (medlineplus.gov)
It is related to a decrease in the number and activity of the melanocytes of the hair bulb, which eventually completely disappear from the bulb of the white hair. (nih.gov)
Right image shows 3D reconstruction of a confocal Z-stack of a follicle showing that most of the RFP resides in the center of the follicle bulb. (nih.gov)
It is a type of a sac, which is also called the pilosebaceous follicle, and holds the hair bulb. (laroche-posay.com)
Of chief importance, this anatomical distribution of Y chromosomes at the respective location of inflammation in the hair follicle bulb or bulge supports the presence of graft-versus-host disease of the hair follicular unit, which has not been previously identified through the use of FISH analysis," the researchers wrote. (healio.com)

A newly described transcription factor maintains the stem cells in the hair follicle in an undifferentiated state, preventing premature differentiation. (sciencemag.org)
The regenerated hair follicles were fully functional, in that they established a stem cell population, expressed known molecular markers of follicle differentiation, and produced a hair shaft that progressed normally through all stages of the hair follicle cycle. (clinicaltrials.gov)
EDA protein regulation of hair follicle growth and differentiation through activation Nf-kB pathway occurring by binding of p65/p50 complex. (wikipathways.org)
Ectodysplasin regulates the lymphotoxin-beta pathway for hair differentiation. (wikipathways.org)
Significantly, we elucidate the regulatory cascade that positions Dlx3 downstream of Wnt signaling and as an upstream regulator of other transcription factors that regulate hair follicle differentiation, such as Hoxc13 and Gata3. (biologists.org)
A series of signaling molecules is involved in each step of primary hair development and differentiation. (biologists.org)
Human hair follicle mesenchymal stem cells (hHFMSCs) isolated from hair follicles possess multilineage differentiation potential. (unboundmedicine.com)

A study by Ito et al showed de novo hair follicle formation after wounding in genetically normal adult mice. (clinicaltrials.gov)

Data shown are from P4 backskin follicles of mice harboring both transgenes. (nih.gov)
However, hair does regenerate to a great extent in the wound-healing process in mice. (redorbit.com)
Humans have low numbers of gamma delta T cells in their skin compared to mice, and this may explain why human skin scars but does not regenerate hair follicles. (redorbit.com)
Conversely, when Fgf9 was increased, there was a two- to three-fold increase in the number of new hair follicles, equal to the amount seen in the mice expressing Wnt. (redorbit.com)
Researchers at the University of Pennsylvania School of Medicine have found that hair follicles in adult mice regenerate by re-awakening genes once active only in developing embryos. (rxpgnews.com)
We investigated the genetic basis for the regulation of eccrine gland density in mice and find that eccrine gland and hair follicle densities are inversely regulated by the transcription factor En1. (pnas.org)
To identify pathways controlling the relative patterning of eccrine glands and hair follicles, we exploited natural variation in the density of these organs between different strains of mice. (pnas.org)
Inactivation of CerS4 in mice resulted in precocious activation of hair follicle bulge stem cells while expanding the Lrig1(+) junctional zone and sebaceous glands. (sigmaaldrich.com)
We report multiphoton in situ optical sectioning of hair follicles in mice and a preliminary investigation of the pathological hair follicles in a transgenic mouse model. (spiedigitallibrary.org)
Julia G. Lyubovitsky , Tatiana B. Krasieva, Xiaoman Xu, Bogi Andersen, Bruce Jason Tromberg , "In situ multiphoton optical tomography of hair follicles in mice," Journal of Biomedical Optics 12(4), 044003 (1 July 2007). (spiedigitallibrary.org)
In contrast, the growth of both rabbit and mice hair follicles depended on signals from neighboring follicles. (nutritionreview.org)
Chuong reported robust wave spreading in rabbits, gradual spreading in mice, and random growth with loss of follicle coupling in human skin. (nutritionreview.org)
Dr Cotsarelis looked into a study on the cell regrowth of mice and found that something in their healing process reprogrammed stem cells to create new follicles. (sknclinics.co.uk)
The wounds that appear to cause the hair regrowth in the mice are similar to the common skin treatment known as dermabrasion, Cotsarelis said, "In dermabrasion, layers of skin are scraped off and healing begins. (sknclinics.co.uk)
This skin model, developed using stem cells from mice, more closely resembles natural hair than existing models. (fightaging.org)

It houses several types of stem cells, which supply the entire hair follicle with new cells, and take part in healing the epidermis after a wound. (wikipedia.org)
Hair follicles are self-renewing and contain reservoirs of multipotent stem cells that are capable of regenerating the epidermis and are thought to be utilized in wound healing. (nih.gov)
Hair follicles are invaginations of the surface epidermis that can be divided into different units (infundibulum, isthmus, and inferior part). (medscape.com)
Able to accurately track a key stem cell type for the first time, the authors confirmed that melanoma cells can arise from melanocyte stem cells, which abnormally migrate up and out of hair follicles to enter the epidermis, the outermost layer of skin. (news-medical.net)
Human skin (epidermis) showing an empty hair follicle, scanning electron micrograph (SEM). (sciencephoto.com)
Human skin (epidermis) with empty hair follicle. (sciencephoto.com)
Mammalian epidermis consists of three self-renewing compartments: the hair follicle, the sebaceous gland, and the interfollicular epidermis. (sciencemag.org)
Prenatal Lgr6+ cells established the hair follicle, sebaceous gland, and interfollicular epidermis. (sciencemag.org)
Postnatally, Lgr6+ cells generated sebaceous gland and interfollicular epidermis, whereas contribution to hair lineages gradually diminished with age. (sciencemag.org)
Furthermore, it will be important to decipher the contribution of GR in the different cellular compartments of the skin, including keratinocytes of the interfollicular epidermis and hair follicles, and their respective stem cell progenitors. (csic.es)
The team's recent research demonstrates that a single skin organoid unit developed in culture can give rise to both the epidermis (upper) and dermis (lower) layers of skin, which grow together in a process that allows hair follicles to form the same way as they would in a mouse's body. (fightaging.org)

Since fine and thinning hair is more susceptible to breakage caused by perming, blow drying or other chemical treatments, hair simulators can ward off the undesired side effects of these procedures. (selfgrowth.com)
What are some effective hair follicle treatments? (reference.com)
A better understanding of this process could lead to novel treatments for hair loss, other skin and hair disorders, and wounds. (rxpgnews.com)
In these cases, hair loss treatments, including topical solutions like minoxidil and finasteride, may help revive resting follicles, according to Mayo Clinic. (reference.com)
Since topical treatments do not revive dead hair follicles, surgical intervention is needed to restore hair growth. (reference.com)
Treatments for hair loss that can help to reverse hair follicle damage do exist. (livestrong.com)
However, those who experience significant scarring of the follicles from chemical or hot oil hair treatments may be looking at permanent damage. (livestrong.com)
Treatments are available to minimize follicle damage. (livestrong.com)
What Are the Treatments for Clogged Hair Follicles? (livestrong.com)
Current treatments for baldness include hair plugs where stronger hair follicles from the side and back of the head are transplanted to bald spots. (dailymail.co.uk)
Meet with our board certified doctors to diagnose your hair loss and discuss treatments. (bernsteinmedical.com)
Style hair with Hair ResQ™ Styling Treatments. (iherb.com)
Updated to include the latest in surgical hair restoration, FUE, medical treatments, hair cloning and laser therapy. (bernsteinmedical.com)
With this new model, which is in 3D, this interaction can be studied with a view to developing new treatments for hair loss and hair regrowth especially male pattern baldness. (hishairclinic.com)
In the meanwhile there are two treatments that have been medically approved for use in preventing further hair loss and increase hair growth. (hishairclinic.com)
A hair specialist will take information of medical history, family history, current treatments and medications, diet and lifestyle and if needs be a blood test to rule out any underlying illness that has not been seen. (hishairclinic.com)
The method could be an alternative to such currently available treatments as hair loss medicines and hair transplants. (baumanmedical.com)
The Centre has been focusing on biological hair follicle research as well as developing innovative scalp cooling-related treatments and individual 3D-printed cooling caps. (medicalxpress.com)

Amoh Y, Li L, Katsuoka K, Penman S, Hoffman RM (2005) Multipotent nestin-positive, keratin-negative hair-follicle-bulge stem cells can form neurons. (springer.com)
Moreover, ablation of Dlx3 expression in the telogen bulge stem cells is associated with a loss of BMP signaling, precluding re-initiation of the hair follicle growth cycle. (biologists.org)
Unlike the bulge stem cells, hair germ cells respond and proliferate quickly but soon exhaust their proliferative potential. (belgraviacentre.com)

Aged hair follicles are no longer as prepared for new hair growth. (medlineplus.gov)
The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. (wikipedia.org)
The process of hair growth occurs in distinct sequential stages. (wikipedia.org)
Of all mammals, humans have the longest growth phase of scalp hair compared to hair growth on other parts of the body. (wikipedia.org)
There are many human diseases in which abnormalities in hair appearance, texture or growth are early signs of local disease of the hair follicle or systemic illness. (wikipedia.org)
The scalp hair follicle in Caucasians is elliptical in shape and, therefore, produces straight or wavy hair, whereas the scalp hair follicle of people of African descent is more curvy, resulting in the growth of tightly curled hair. (wikipedia.org)
As the name implies, a follicle stimulator stimulates the hair follicle thereby promotes hair growth as well as reverses the process of hair loss. (selfgrowth.com)
So, one of the primary benefits of a hair growth stimulant is - if it contains Zinc PCA (an amino acid) and Copper Peptides to stop the pooling of DHT. (selfgrowth.com)
Pearl stimulates hair follicles to help hair growth, and leaves hair thicker, softer, shiner and naturally healthy. (selfgrowth.com)
Calcium is one of the most vital minerals needed to ensure proper growth reproduction and maintenance of the body, and to stimulate hair growth, Calcium promotes cell growth and strengthens healthy growing hair. (selfgrowth.com)
Zinc PCA (an amino acid), influences hair follicles and hair growth. (selfgrowth.com)
Copper Peptides promote hair growth and increase fat cells on the scalp. (selfgrowth.com)
Copper and Zinc play a key role in hair loss, by blocking the the hormone (DHT) which has shown to curb hair growth. (selfgrowth.com)
Hemoglobin carries oxygen for the growth and repair of cells that stimulate hair growth. (selfgrowth.com)
Silicon also called silica, is responsible for growth and shine of hair. (selfgrowth.com)
Magnesium promotes follicle hair growth, which results in healthy hair growth. (selfgrowth.com)
Tyrosine is an amino acid in pearl powder which helps to improve blood supply to the roots of the hair and encourages hair growth with capillary micro-circulation. (selfgrowth.com)
This also aids in stimulating hair growth. (selfgrowth.com)
Stimulators also work by renewing the growth of follicles as well as extending the growth stage of the hair cycle. (selfgrowth.com)
Subsequently, DP cells are enveloped by epithelial stem cell progeny and other cell types to form a niche orchestrating hair growth. (nih.gov)
These tests cannot detect drug use that only happened a few days or a week ago, due to the average rate of hair growth, so some employers use urine drug tests in combination with hair tests to be absolutely sure they catch potential drug users. (reference.com)
Researchers in the Perelman School of Medicine at the University of Pennsylvania have determined the role of a key growth factor, found in skin cells of limited quantities in humans, which helps hair follicles form and regenerate during the wound healing process. (redorbit.com)
When this growth factor, called Fgf9, was overexpressed in a mouse model, there was a two- to three-fold increase in the number of new hair follicles produced. (redorbit.com)
Researchers believe that this growth factor could be used therapeutically for people with various hair and scalp disorders. (redorbit.com)
When a wound occurs in an adult person, hair follicle growth is blocked and the skin heals with a scar. (redorbit.com)
When Fgf9 was reduced, there was a decrease in wound-induced hair follicle growth. (redorbit.com)
Like other, more active and quickly proliferating organ systems, hair follicles may be easily disturbed in their normal growth cycle by systemic and local influences, including specific skin diseases. (medscape.com)
the hair is finally shed and the growth cycle starts at the beginning. (medscape.com)
Exceeding hair loss (defined as more than 100 hairs/d) may be due to either changes of the physiologic cycle of hair growth or damage of the hair apparatus by systemic or local influences. (medscape.com)
It is there that immature pigment-making cells develop cancer-causing genetic changes - and in a second step - are exposed to normal hair growth signals, say the study authors. (news-medical.net)
By introducing more wnt proteins to the wound, the researchers found that they could take advantage of the embryonic genes to promote hair-follicle growth, thus making skin regenerate instead of just repair. (rxpgnews.com)
Growth of regenerated hair follicles over 45 days. (rxpgnews.com)
The regenerated follicles possess normal stem cells and function normally by producing a hair shaft and cycling through growth phases. (rxpgnews.com)
Because hair growth rates vary from person to person, this test can't accurately determine when in the 90 days drugs were used. (healthline.com)
However, bald spots that exhibit little to no hair growth may still have some resting follicles that are still alive. (reference.com)
Mayo Clinic suggests hair transplants and scalp reduction to replace or remove dead follicles and restore hair growth to bald areas, although it states that these procedures come with high costs and potential risks. (reference.com)
it did not successfully produce new dermal papillae, a component necessary for hair growth. (reference.com)
The HairMax LaserComb delivers gentle, nourishing laser light directly to your hair follicles, infusing them with the energy needed to stimulate growth factors, extend the growth phase and help restore a healthy hair cycle. (hairsite.com)
The HairMax LaserComb utilizes Laser Phototherapy that generates visible light in the red spectrum, which has been clinically proven to successfully treat hair loss and stimulate the hair follicles to promote hair growth. (hairsite.com)
This creates an enhanced environment within the hair follicle so that it can stimulate hair growth and produce healthy hair. (hairsite.com)
Your hair cycles through resting and growth phases throughout its existence. (livestrong.com)
The hair follicles in the growth phase are attacked, resulting in hair loss approximately two weeks after the commencement of chemotherapy treatment. (news-medical.net)
A combination of vital hair growth nutrients - B7, B12, C, A and E work together with effective amino acids and minerals aiding development of protein bonds and follicle structure for stronger, healthier growth. (healthyhairplus.com)
An ideal combination for addressing slow growth, thinning and early stages of hair loss. (healthyhairplus.com)
Out best selling hair growth products. (healthyhairplus.com)
Hair Follicle Stimulator For faster, healthier hair growth! (healthyhairplus.com)
Follicle Stimulator delivers essential nutrients for optimal hair growth. (healthyhairplus.com)
Stimulate hair growth and development and leave your hair hair healthy and vibrant. (healthyhairplus.com)
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A 5% Trichogen solution guaranteed to reduce hair loss and help get hair back into the growth cycle which means thicker and healthier hair for both men and women. (healthyhairplus.com)
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hair growth treatment! (healthyhairplus.com)
Due to differences in hair growth rate depending on anatomical region, age, gender, ethnicity and interindividual variability, interpretation of parent drug or/and metabolite concentrations in hair is not easy," the research said. (laweekly.com)
New research published in the journal Developmental Cell has confirmed the importance of dermal sheath stem cells in maintaining the hair growth cycle. (bernsteinmedical.com)
The in vitro creation of a follicular structure capable of hair growth from cultured adult cells has long been an aim of researchers in hair biology. (hairfacts.com)
While the usefulness of the current methodology relates immediately to hair growth research, the generation of hair follicles and fibres in vitro establishes the enormous potential of this type of interactive work for practical purposes. (hairfacts.com)
Many people have told me that they have had good results with Nioxin's hair growth products. (truthinaging.com)
Two weeks into my test, Nioxin has produced noticeable new hair growth, but so far the hairs are the merest baby wisps. (truthinaging.com)
Copper is a wound healer and its ability to assist in hair growth was discovered when it was noticed that the hair follicles around treated wounds were exceptionally large. (truthinaging.com)
A Japanese study shows that phosphatidic acid has an "intensive" effect on hair growth by targeting the epithelial cells and epidermal keratinocytes. (truthinaging.com)
Most of the rest of the ingredients are not directly related to hair growth, although many of them are useful antioxidants such as alga and yeast. (truthinaging.com)
After growing the raw cells from the hair spheres in different types of growth factors, the investigators were able to differentiate the stem cells into multiple lineages, including nerve cells, smooth muscle cells, and melanocytes (skin pigment cells). (webwire.com)
Investigators will then prospectively monitor the area for hair growth both by noninvasive visual monitoring (including photographs and dermoscopy) and biopsies. (clinicaltrials.gov)
Hair follicles display periodic growth. (medsci.org)
U.S. Dept. of Agriculture research indicates that "jojoba, when used as a method of controlling sebum flow, can promote a luxuriant growth of hair. (evitamins.com)
Low and behold after about 6 weeks, it was time for a relaxer again and my hair dresser commented that my new growth was unbelievable. (evitamins.com)
The hair follicle undergoes lifelong cycling and growth. (springer.com)
The study will also measure the impact these injections will have on hair growth. (clinicaltrials.gov)
Mii S, Duong J, Tome Y, Uchugonova A, Liu F, Amoh Y et al (2013) The role of hair follicle nestin-expressing stem cells during whisker sensory-nerve growth in long-term 3D culture. (springer.com)
On the other hand, when skin is exchanged between rats of different ages and thus with their hair growth waves out of phase, follicular activity in the graft skin in some circumstances comes into line with the activity of the host (Ebling & Johnson, 1961). (biologists.org)
The invention utilizes the transdermal properties of oil from the Australian native Emu bird (Dromais Novae-Hollandiae) to deliver the specific therapeutic grade essential oil blend of Rosemary, Thyme, Lavender and Cedarwood through the human scalp to the hair root below, thus stimulating hair growth in live hair follicles. (freepatentsonline.com)
1. A method for stimulating the hair root follicles on a human head in order to promote hair growth comprising the steps of: Administering emu oil combined with essential oils of Rosemary, Thyme, Lavender & Cedarwood to the scalp of the individual seeking to stimulate hair root follicles below the scalp and promote hair growth. (freepatentsonline.com)
5. The method of claim 1, wherein the preparation is administered topically to an area of the scalp where hair growth promotion is desired. (freepatentsonline.com)
The invention relates to a composition containing emu oil as the transdermal delivery system for essential oils of rosemary, thyme, lavender and cedarwood, having the effect of penetrating the human scalp and stimulating the hair roots below for the purpose of promoting healthy hair growth in living hair follicles. (freepatentsonline.com)
HAIR loss treatment: In order to combat the effects of hair loss, one can turn to a daily vitamin proven to help increase hair growth. (express.co.uk)
Zinc plays an important role in one's hair tissue growth and repair. (express.co.uk)
Zinc also helps keep the oil glands around the follicles working the way they should help aid in hair growth. (express.co.uk)
This is the reason why many health experts advise taking zinc supplements to help aid in hair growth. (express.co.uk)
Collective Laboraties said: "Throughout the body, zinc is essential for healthy biological processes like hair growth. (express.co.uk)
Zinc strengthens the sebaceous gland, prolonging the hair growth cycle and promoting hair follicle recovery. (express.co.uk)
Hair has a three phase growth cycle and with the use of this model there may be more understanding as to the three phases. (hishairclinic.com)
Hair growth boosters can come in the form of capsules containing added nutrients that will help to boost the body's system and ensure valuable nutrients reach the hair follicles. (hishairclinic.com)
Throughout our lifetime, each hair follicle undergoes cyclical bouts of growth, destruction and rest through an intrinsic stem cell population. (belgraviacentre.com)
For a new round of hair growth to begin, stem cells in the hair follicle must receive a signal to divide. (belgraviacentre.com)
After this growth period, the stem cells stop dividing and the hair follicle gradually retracts again. (belgraviacentre.com)
Growth of facial hair, obesity and acne are some of the external manifestations, while within the body the woman can suffer from cyst formation on the ovary and infertility and mentally she can feel depressed and anxious. (natural-homeremedies.com)
Using the predictive model, the researchers found that each adult human hair follicle could count only on its intrinsic growth-promoting signals, without the help of adjacent follicles in the macro-environment. (nutritionreview.org)
For a deep cut on your leg, this isn't too much of a concern if future hair growth is limited. (sknclinics.co.uk)
Unfortunately, the experiment of hair growth in wounded humans is difficult to tackle as it inflicts pain on the participants. (sknclinics.co.uk)
The relationship between skin and hair follicles seems a common one, as the skin treatment laser hair removal deliberately targets hair follicles purposely to damage them and reduce hair growth. (sknclinics.co.uk)
It generally is quite an achievement how far we have advanced with technology in the realms of permanent hair growth and hair removal. (sknclinics.co.uk)
This includes the pilosebaceous structure which lubricates the hair shaft but also is part responsible for hair growth. (regrowth.com)
These follicle units must be preserved intact during dissection to insure survival and growth. (regrowth.com)
Most notably, none of these existing skin tissues is capable of hair growth. (fightaging.org)

Dr Lauster also believes that growing skin and hair follicles in the lab could eventually spell the end of animal testing. (dailymail.co.uk)

HF-MSCs not only take part in the generation of hair follicles but also contribute to hair cycle progression. (hindawi.com)

Ceramide synthase 4 regulates stem cell homeostasis and hair follicle cycling. (sigmaaldrich.com)

Researchers previously believed that adult mammal skin could not regenerate hair follicles. (rxpgnews.com)
To our knowledge this represents the first example of adult cell populations instigating the de novo creation of hair fibres in a culture dish. (hairfacts.com)
In contrast, dissociated skin cells from an adult mouse only reached phase 2--aggregation--before stalling in their development and failing to produce hair. (eurekalert.org)
By providing the right molecular and genetic cues in the proper sequence, they were able to stimulate these adult organoids to continue their development and eventually produce hair. (eurekalert.org)
In fact, the adult organoids produced 40 percent as much hair as the newborn organoids--a significant improvement. (eurekalert.org)
Normally, many aging individuals do not grow hair well, because adult cells gradually lose their regenerative ability," said Chuong, senior author, USC Stem Cell principal investigator and professor of pathology at the Keck School of Medicine of USC. (eurekalert.org)
With our new findings, we are able to make adult mouse cells produce hair again. (eurekalert.org)
A number of reports have pointed to the fact that adult stem cells may be more flexible in what they become than previously thought, so we decided to look in the hair follicle bulge, a niche for these cells. (webwire.com)
Hair follicles are well known to be a source for adult stem cells. (webwire.com)
In adult hair follicles, Lgr6+ cells resided in a previously uncharacterized region directly above the follicle bulge. (sciencemag.org)
Adult Lgr6+ cells executed long-term wound repair, including the formation of new hair follicles. (sciencemag.org)
Sieber-Blum M, Grim M, Hu YF, Szeder V (2004) Pluripotent neural crest stem cells in the adult hair follicle. (springer.com)

From this sample, cells called "dermal sheath cup cells" are extracted from the base of the follicle. (hairlosstalk.com)

Then the follicle starts to degenerate and enters the intermediate catagen stage. (medscape.com)
Importantly, mutant catagen follicles undergo delayed regression and display persistent proliferation. (biologists.org)

A follicle stimulator supplies the essential nutrients to the hair follicle and is considered as ideal treatment for hair loss or thinning hair. (selfgrowth.com)
Pearl PowderTM is a powerful hair follicle stimulator, used in Traditional Chinese Medicine. (selfgrowth.com)
Nourish Follicle Stimulator and Hair Nutrition Vitamins combine effective stimulation and nourishment inside and out to provide the healthiest, fastest growing hair possible. (healthyhairplus.com)
Follicle Stimulator is a hair accelerator that feeds follicles and helps remove obstacles that impede hair from being its healthiest. (healthyhairplus.com)
If used with Hair ResQ™ Follicle Stimulator, use Hair ResQ™ Follicle Stimulator in the mornings, and Hair ResQ™ Follicle Maintainer in the evenings. (iherb.com)
With Bio-Ferm® Energizer Hair follicle Stimulator can help you achieve thicker, fuller healthier hair. (evitamins.com)
Spray Energizer Stimulator on hair and scalp with special attention to the scalp of thinning areas. (evitamins.com)
Use Energizer Stimulator between shampoos to add extra volume and body to your hair! (evitamins.com)
The customer reviews posted below are based on individual consumer experiences and may NOT necessarily represent what expected results will be from using or taking Hobe Laboratories Energizer Hair Follicle Stimulator - 8 fl oz. (evitamins.com)
Energizer Hair Follicle Stimulator is an excellent product. (evitamins.com)
I purchased Energizer Hair Follicle Stimulator from my local health food store in hopes of it working. (evitamins.com)
Добрый день девушки хочется сегодня рассказать о действующем средстве от выпадения волос Energizer Hair Follicle Stimulator. (evitamins.com)
Про Energizer Hair Follicle Stimulator я узнала случайно, так как в России данное средство не знаменито. (evitamins.com)

The function of hair in humans has long been a subject of interest and continues to be an important topic in society, developmental biology and medicine. (wikipedia.org)
For centuries, humans have ascribed esthetics to scalp hair styling and dressing and it is often used to communicate social or cultural norms in societies. (wikipedia.org)
The findings help explain why humans don't regenerate their hair after wounding," said senior author George Cotsarelis, MD, professor and chair of Dermatology. (redorbit.com)
This work uncovers a previously unidentified biological factor that specifically promotes the development of eccrine glands when these organs are interspersed with hair follicles, and has the potential to inform efforts to elucidate the genetic basis for the evolution of increased eccrine gland density in humans. (pnas.org)
Currently, there are no techniques that can revive dead hair follicles in humans. (reference.com)
If valid also in humans, hair follicle density (HFD) may relate to the perceived pleasantness of stroking tactile stimulation. (diva-portal.org)
In humans, coupling of hair follicles was much lower, probably as a result of human evolution, Chuong said. (nutritionreview.org)

Lgr6 was expressed in the earliest embryonic hair placodes. (sciencemag.org)

Hair follicles experience several changes with aging, the most noticeable of which is graying of the hair shaft due to loss of melanin. (nih.gov)
Most follicle stimulators are formulated to supply adequate amounts of proteins, vitamins and other nutrients to the hair follicle and hair shaft, thereby promoting fuller and thicker hair. (selfgrowth.com)
Drugs are deposited in the hair shaft through absorption into the hair follicle. (askmehelpdesk.com)
Testing is conducted on the hair shaft which prevents external contamination on the outside of the hair that may occur during accidental exposure, such as being in the same vicinity as someone using drugs. (askmehelpdesk.com)
Evidence of drug use continues to live in the hair shaft long after the body and blood eliminate signs of it, and finding this evidence could be very important in any situation where there is zero tolerance for legal or illegal drug use. (wisegeek.com)
it does not to show up in the hair shaft. (wisegeek.com)
Arrows indicate hair shaft. (rxpgnews.com)
1) By invigorating the hair follicles: The laser light increases the amount of adenosine triphosphate (ATP), the fuel of the living cells that eventually make up the hair shaft within the follicle. (hairsite.com)
Biotin-B Complex envelops the hair shaft to build body & increase thickness. (iherb.com)
Numerous desquamating cells are concentrically arranged around the base of the hair shaft. (sciencephoto.com)

It takes care of to do this given that it washes both your scalp and hair, consequently reaching deep within the hair follicles. (killingthemsoftlymovie.com)
It takes care of to do this considering that it cleans both your scalp as well as hair, therefore getting to deep within the hair follicles. (killingthemsoftlymovie.com)

Primary cicatricial or scarring alopecias (CA) are a group of inflammatory hair disorders of unknown pathogenesis characterized by the permanent destruction of the hair follicle. (pubmedcentralcanada.ca)
In secondary cicatricial alopecias, destruction of the hair follicle is incidental to a non-follicle-directed process or external injury, such as severe infections, burns, radiation, tumors, or traction. (wikipedia.org)

Bending the hair stimulates the nerve endings allowing a person to feel that the hair has been moved. (medlineplus.gov)
Caffeine energizes scalp & stimulates hair follicle for extended vitality. (iherb.com)

Ordinarily, hair follicle renewal is maintained by the stem cells associated with each follicle. (wikipedia.org)
Aging of the hair follicle appears to be primed by a sustained cellular response to the DNA damage that accumulates in renewing stem cells during aging. (wikipedia.org)
There are two types of hair follicle tumors, trichoepitheliomas, which arise from cystic hair follicles (follicles that have closed over, like a sac), and pilomatricomas, which arise from the cells that produce the hair follicles. (petmd.com)
Pilomatricomas are rare skin tumors that develop from the hair matrix, where the cells which grow the hair follicles develop and are contained. (petmd.com)
The signal prompts further expression of Fgf9 in structural cells called fibroblasts, and adds to the generation of new hair follicles. (redorbit.com)
Some of the most deadly skin cancers may start in stem cells that lend color to hair, and originate in hair follicles rather than in skin layers, a new study finds. (news-medical.net)
The new study, published online November 4 in Nature Communications , found that unlike their normal counterparts, newly cancerous pigment stem cells then migrate up and out of the follicles to establish melanomas in nearby surface skin before spreading deeper. (news-medical.net)
By confirming that oncogenic pigment cells in hair follicles are a bona fide source of melanoma, we have a better understanding of this cancer's biology and new ideas about how to counter it. (news-medical.net)
These signaling proteins normally cause hairs to become longer and pigment cells to multiply in follicles. (news-medical.net)
While our findings will require confirmation in further human testing, they argue that melanoma can arise in pigment stem cells originating both in follicles and in skin layers, such that some melanomas have multiple stem cells of origin. (news-medical.net)
Commensal microbes induce hair follicles to release a chemokine that recruits regulatory T cells into neonatal skin. (sciencemag.org)
Unexpectedly, the regenerated hair follicles originated from non-hair-follicle stem cells. (rxpgnews.com)
According to Mail Online, scientists recently discovered a way to grow hair follicles from stem cells. (reference.com)
We were able to measure how much chemotherapy drug goes into the cultured cells from hair follicles and what we have found is that cooling actually dramatically reduces the amount of chemotherapy drug being absorbed by the rapidly-diving cells of the hair follicle,' he added. (news-medical.net)
We showed that hair follicle cells from HS patients had an increased number of proliferating progenitor cells and lost quiescent stem cells. (jci.org)
Scientists at the Berlin Technical University in Germany, have grown the world's first artificial hair follicles from stem cells. (dailymail.co.uk)
The follicles were created from animal cells and were somewhat thinner than normal, but the team were optimistic they could grow human hairs from stem cells within a year. (dailymail.co.uk)
Research leader Dr Roland Lauster said within five years millions of hair-loss sufferers could grow new hair from their own stem cells and have it implanted their bald spots. (dailymail.co.uk)
New study suggests that Lactate may influence hair follicle stem cells in a dose dependent manner. (hairsite.com)
Click Lactate Influences Hair Follicle Stem Cells for complete coverage on this topic and our community discussion. (hairsite.com)
It is clear that maintaining the population of DSC cells after each iteration of the hair cycle is very important in preserving and maintaining healthy and mature terminal hairs. (bernsteinmedical.com)
In the RCH-01 treatment, cloned DSC cells are injected into balding areas of the scalp where they are expected to reverse miniaturization and regenerate healthy, hair-producing follicles. (bernsteinmedical.com)
A USC-led study, published in the Proceedings of the National Academy of Sciences (PNAS), addresses this question using insights gleaned from organoids, 3D assemblies of cells possessing rudimentary skin structure and function--including the ability to grow hair. (eurekalert.org)
By carefully studying these developmental processes, the scientists obtained a molecular "how to" guide for driving individual skin cells to self-organize into organoids that can produce hair. (eurekalert.org)
The mutipotent stem cells grow as masses the investigators call hair spheres. (webwire.com)
After 14 days, about 10% of the stem cells in the neuronal cell line -- a type of cell not present in skin or hair -- grew dendrites, the long extensions typical of nerve cells and expressed neuronal proteins. (webwire.com)
The researchers are now working on inducing other cell types from the hair sphere cells and testing the cells in animal models. (webwire.com)
Inside the microscopic world of the mouse hair follicle, Yale Cancer Center researchers have discovered big clues about how stem cells regenerate and die. (innovations-report.com)
The hair follicle is an ideal site for exploring stem cell behavior because it has distinct and predictable oscillations in the number and behavior of stem cells, said the study's lead author Kailin R. Mesa, a third-year doctoral student in the lab of Valentina Greco, associate professor of genetics, cell biology and dermatology. (innovations-report.com)
Skin wounds can be repaired by primitive stem cells into fully differentiated tissue, complete with hairs and sebaceous glands. (sciencemag.org)
The distinct pathophysiology of CCCA is poorly understood, but it is known to involve inflammation directed at the upper part of the hair follicle where the stem cells and sebaceous gland are located. (clinicaltrials.gov)
It is hypothesized that the regenerated hair follicles likely arise when epithelial cells in the wound assume a hair follicle stem cell phenotype, possibly under the influence of Wnt signaling. (clinicaltrials.gov)
The combination of TPF with SHG is sensitive to structural changes in cells and extracellular matrix brought on by normal hair follicle physiology and specific gene alterations. (spiedigitallibrary.org)
Previous studies have been focused on epithelial stem cells in the hair follicles. (springer.com)
Cotsarelis G, Sun TT, Lavker RM (1990) Label-retaining cells reside in the bulge area of pilosebaceous unit: implications for follicular stem cells, hair cycle, and skin carcinogenesis. (springer.com)
Tanimura S et al (2011) Hair follicle stem cells provide a functional niche for melanocyte stem cells. (springer.com)
Amoh Y, Li L, Katsuoka K, Hoffman RM (2008) Multipotent hair follicle stem cells promote repair of spinal cord injury and recovery of walking function. (springer.com)
Amoh Y et al (2005) Implanted hair follicle stem cells form Schwann cells that support repair of severed peripheral nerves. (springer.com)
The primary purpose of this study is to assess the safety of performing injections of human autologous hair follicle cells. (clinicaltrials.gov)
The provided scalp biopsy is then processed to isolate hair follicle cells which are then replicated. (clinicaltrials.gov)
Patients will receive randomized, blinded, injections of BOTH autologous hair follicle cells in medium (verum) and of medium alone (control) into two separate pre-defined treatment areas on their scalp. (clinicaltrials.gov)
Nestin, a neural stem cell marker protein, is expressed in hair follicle cells above the bulge area. (springer.com)
These nestin-positive hair follicle-associated-pluripotent (HAP) stem cells are negative for the keratinocyte marker K15 and can differentiate into neurons, glia, keratinocytes, smooth muscle cells, cardiac muscle cells, and melanocytes in vitro. (springer.com)
Li L, Mignone J, Yang M, Matic M, Penman S, Enikolopov G et al (2003) Nestin expression in hair follicle sheath progenitor cells. (springer.com)
Amoh Y, Li L, Yang M, Moossa AR, Katsuoka K, Penman S et al (2004) Nascent blood vessels in the skin arise from nestin-expressing hair follicle cells. (springer.com)
Amoh Y, Li L, Katsuoka K, Hoffman RM (2007) Chemotherapy targets the hair-follicle vascular network but not the stem cells. (springer.com)
Yashiro M, Mii S, Aki R, Hamada Y, Arakawa N, Kawahara K et al (2015) From hair to heart: nestin-expressing hair-follicle-associated pluripotent (HAP) stem cells differentiate to beating cardiac muscle cells. (springer.com)
Hoffman RM (2014) Nestin-expressing hair follicle-accessible-pluripotent (HAP) stem cells for nerve and spinal cord repair. (springer.com)
Amoh Y, Hamada Y, Aki R, Kawahara K, Hoffman RM, Katsuoka K (2010) Direct transplantation of uncultured hair-follicle multipotent stem (hfPS) cells promotes the recovery of peripheral nerve injury. (springer.com)
The goal of the treatment is for these healthy cells to migrate to thinning areas, revitalizing the hair that grows there as well as bestowing the thinning hair with the healthy hair's immunity to balding. (hairlosstalk.com)
It is the same size and has the same cell arrangement as that of a real hair follicle and with the use of microfibre fabrication technology2 it can engineer different types of cells. (hishairclinic.com)
As this model has similar cell behaviour to hair follicles, when hair cells are implanted into the transparent, fine fibres they can be studied under a microscope. (hishairclinic.com)
However, new research from Rockefeller University reveals that a structure at the base of each strand of hair, the hair follicle, uses a two-step mechanism to activate its stem cells and order them to divide. (belgraviacentre.com)
In response to this signal, the hair follicle regenerates first by growing downward through the skin's middle layer, the dermis, and then producing the specialised cells that form the hair. (belgraviacentre.com)
Fuchs and her team discovered that during most of the telogen (resting) phase, both the bulge (the base of the hair follicle) and the hair germ (a smaller cluster of cells at the very bottom of the bulge) remain dormant. (belgraviacentre.com)
By isolating cells from both the hair germ and the bulge, they also confirmed that the two are molecularly very similar, suggesting that the germ originates from the bulge. (belgraviacentre.com)
It was previously recognised that two inhibitory signals, known as Wnts and BMP, were needed for hair follicle stem cells to activate. (belgraviacentre.com)
Your hair - or lack of hair - is the result of a lifelong tug-of-war between activators that wake up, and inhibitors that calm, stem cells in every hair follicle on your body, according to Cheng-Ming Chuong, M.D., Ph.D., of the University of Southern California (USC). (nutritionreview.org)
These multiple layers of control create a balance between inhibitory BMP (bone morphogenic protein) signaling that keeps hair stem cells in quiescent state and activating Wnt signaling that wakes them up. (nutritionreview.org)
Because rabbits have compound follicles (multiple hairs from one follicle), their stem cells were tightly coupled, and their coats regenerated so rapidly that the patterns resembled rapidly changing fractals. (nutritionreview.org)
But the team discovered they were generating skin cells in addition to inner ear tissue, and their research shifted towards coaxing the cells into sprouting hair follicles. (fightaging.org)
By observing the development of this more lifelike skin organoid, the researchers learned that the two layers of skin cells must grow together in a specific way in order for hair follicles to develop. (fightaging.org)
Some 5,000 to 10,000 strands of hair can be grown from a small amount of follicle tissue created using three types of stem cells found in the scalp, according to Riken's Takashi Tsuji who leads the study. (baumanmedical.com)
However, all cicatricial alopecias involve inflammation directed at the upper part of the hair follicle where the stem cells and sebaceous gland (oil gland) are located. (wikipedia.org)

Note the absence of signal from the blue (Alexa Fluor 350) fluorophore, but the bright orange-red fluorescence exhibited by the nuclei and the green emission from glycoproteins in the cytoplasm and membrane components of the individual hair follicles. (microscopyu.com)
Using this imaging technology, we rapidly obtain detailed three-dimensional (3-D) reconstructions of individual hair follicles. (spiedigitallibrary.org)

Anatomically, the triad of hair follicle, sebaceous gland and arrector pili muscle make up the pilosebaceous unit. (wikipedia.org)
Also attached to the follicle is a sebaceous gland, which produces the oily or waxy substance sebum. (wikipedia.org)

You can do so using the Old Design Toxin Rid Hair shampoo that is available at THIS WEB SITE . (phenomenica.com)
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This hair shampoo often intends to reach the origins of the hair strands, which is important for getting rid of contaminants. (openinternetcoalition.com)
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As long as you understand exactly how to use this hair shampoo, you will certainly have no factor to bother with its efficiency. (openinternetcoalition.com)
This hair shampoo often intends to get to the roots of the hair strands, which is crucial for getting rid of toxic substances. (openinternetcoalition.com)
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Preferably, this technique asks for one to quit utilizing medicines days prior to using the hair shampoo or even taking the drug examination. (openinternetcoalition.com)
Tune in to this video to get the scoop and to learn how to style the hair you DO have with Old Spice shampoo, conditioner and styling products. (oldspice.com)
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In a prospective cohort study published in Journal of the American Academy of Dermatology , researchers described four patterns of hair loss observed in patients with cutaneous chronic graft-versus-host disease. (healio.com)
In scalp biopsies from female HCT recipients with male donors, fluorescent in situ hybridization (FISH) analysis was performed for XY chromosomes to identify chimerism and investigate the presence of donor chromosomes in the scalp skin and hair follicle, according to researchers. (healio.com)
Researchers have been making progress towards more complete, complex engineered skin , such as through the inclusion of functional hair follicles or sweat gland structures . (fightaging.org)
Researchers have cultured the first lab-grown skin tissue complete with hair follicles . (fightaging.org)
While the researchers were unable to identify exactly which types of hairs developed on the surface of the organoid, they believe the skin grew a variety of hair follicle types similar to those present naturally on the coat of a mouse. (fightaging.org)
After discovering this recipe for lab-grown hair follicles, the researchers must now work to overcome a new roadblock in the study of in vitro hair development - physical limitations that prevent the hairs from shedding and regenerating. (fightaging.org)

SG are appendages connected to the hair follicle to form the pilosebaceous unit ( Figure 1a ). (pubmedcentralcanada.ca)

In addition to its role in defining human appearance, scalp hair also provides protection from UV sun rays and is an insulator against extremes of hot and cold temperatures. (wikipedia.org)
Differences in the shape of the scalp hair follicle determine the observed ethnic differences in scalp hair appearance, length and texture. (wikipedia.org)
Human scalp hair follicles (hHF) harbour several epithelial stem (eHFSC) and progenitor cell sub-populations organised into spatially distinct niches. (nature.com)
The average duration of persistent scalp hair loss was 32 months (range, 6 to 87 months). (healio.com)

Telogen Follicles Wasted in FUT Hair Transplant? (bernsteinmedical.com)
In an FUT Hair Transplant, What Percentage of Telogen Phase Follicles in Donor Strip are Wasted? (bernsteinmedical.com)
When a donor strip is taken out during a hair transplant and separated under the microscope, you can read on the internet that there is a wastage of grafts (about 15%), because of those unseen telogen hairs. (bernsteinmedical.com)
The Telogen phase of the hair cycle is about 3 months long and about 12% of follicles are in this phase at any one time. (bernsteinmedical.com)
Therefore, approximately 6% of the hair follicles may be in telogen at any one time. (bernsteinmedical.com)
If 6% of all follicles are "empty" telogen follicles, then there should be .15 x .06 = .009 or about 1% of the patient's 1-hair follicular units in the empty telogen phase that can't be identified and will be missed on dissection. (bernsteinmedical.com)
The lesson for hair transplantation is that over-trimming of grafts, for the sake of very dense packing, may waste telogen hairs as well as place the grafts at an unnecessary risk of mechanical trauma, drying and warming. (bernsteinmedical.com)
In other seasons or life stages, individual follicles may remain locked in telogen by the inhibitors in their macro-environment. (nutritionreview.org)

Propecia is an oral treatment that can only be used by men over the age of 18 and helps to inhibit DHT which is known to destroy hair follicles in male pattern baldness. (hishairclinic.com)
About 25 million people in Japan suffer from hair loss caused by such reasons as medication side effects and male pattern baldness. (baumanmedical.com)

Disease and disorder research has been conducted in relation to the Hair Follicle Development Pathway and Neoplasms, Skin Neoplasms, Tissue Adhesions, Hair Diseases, Malignant Neoplasms. (novusbio.com)
The study of the Hair Follicle Development Pathway has been mentioned in research publications which can be found using our bioinformatics tool below. (novusbio.com)
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This novel signaling pathway further weaves together the web of different morphogens and downstream transcriptional events that guide hair bud formation within the developing skin. (nih.gov)
Remarkably, we also showed that the progression of replication forks was altered in ORSCs from hair follicles of HS patients, leading to activation of the ATR/CHK1 pathway. (jci.org)

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In the normal hair follicles, spectral separation of SHG signals generated by the ECM of the hair follicle from that of intrinsic cellular fluorescence revealed intricate spatial interaction of the cellular components with the surrounding connective tissue. (spiedigitallibrary.org)
The clinical features of all these disorders include destruction of hair follicles, progressive hair loss, and permanent replacement of the follicle with fibrous tissue. (pubmedcentralcanada.ca)
In addition, many patients have lowered hair density, have had multiple procedures with resulting scar tissue, or have a greater degree of baldness. (regrowth.com)
In addition, since excess tissue is trimmed away from the grafts, the resulting follicle grafts are smaller. (regrowth.com)
The shape of the tissue in culture causes the hair follicles to grow into the dermal cysts, leaving them with nowhere to shed. (fightaging.org)
It can be caused by a diverse group of rare disorders that destroy the hair follicle, replace it with scar tissue, and cause permanent hair loss. (wikipedia.org)

A key aspect of hair loss with age is the aging of the hair follicle. (wikipedia.org)
Experts agree that magnesium is nature's anti-stress mineral, which is a major component in hair loss. (selfgrowth.com)
Learn more about Dog Hair Loss. (petmd.com)
Identification of the signaling molecules and pathways operating in developing and postnatal, cycling, hair follicles is therefore vital to our understanding of pathogenic states in the skin and may ultimately permit the development of novel therapies for skin tumors as well as for hair loss disease. (nih.gov)
Put simply, this world first, patented and clinically trialled hair regrowth program, is a breakthrough in the treatment of hair loss because unlike all other medication. (advancedhair.com.au)
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thus, leaving the door open for using Fgf9 to treat wounds and hair loss in people. (redorbit.com)
This may lead to hair loss, a very common complaint in men and women. (medscape.com)
Also, there are several physiologic conditions that lead to hair loss, such as postpartum effluvium in women and increasing hair loss with age. (medscape.com)
Average hair loss is about 100 strands a day. (rxpgnews.com)
One large scale study in Maryborough, in central Victoria (Australia) showed the prevalence of mid-frontal hair loss increases with age and affects 57% of women and 73.5% of men aged 80 and over. (rxpgnews.com)
Many people with permanent hair loss also wear hairpieces or wigs to camouflage thin spots. (reference.com)
2) By helping to increase circulation to the scalp: The energy from laser light can help to increase blood flow and circulation in the scalp, which can lead to healthier hair follicles and helps remove harmful elements such as DHT, the hormone responsible for hair loss. (hairsite.com)
Before you can order Dr. Klein's hair loss products, you need to go through a FREE no obligation consultation first to see if you are a good candidate for treatment and which prescription strength formula is most suitable for you. (hairsite.com)
The effects of hair loss can be devastating to hair loss sufferers. (livestrong.com)
The effectiveness of treatment depends on the cause of your hair loss and the depth of the damage. (livestrong.com)
Infections, such as fungal infections, can damage the hair follicles and result in hair loss. (livestrong.com)
Wearing hairstyles that pull too tightly on the scalp also can cause hair loss. (livestrong.com)
An underactive thyroid gland or imbalanced sex hormones also can lead to scalp inflammation that results in hair loss. (livestrong.com)
See a physician who can pinpoint the cause of your hair loss. (livestrong.com)
Do Pimples on Your Head Cause Hair Loss? (livestrong.com)
The team of experts in biology and design technology have been working together with the aim of Paxman becoming the only hair loss-preventing scalp cooling provider firmly based on biological research. (news-medical.net)
It also brings the family-run business one step closer to achieving in its vision of 'zero hair loss' for cancer patients undergoing chemotherapy treatment. (news-medical.net)
The percentage of hair loss can be further reduced when scalp cooling is combined with the application of a topical agent. (news-medical.net)
Richard Paxman, CEO of Paxman, added: 'This latest research brings us one step closer to achieving our vision of 'zero hair loss' for cancer patients undergoing chemotherapy treatment. (news-medical.net)
Healthy Hair & Nutrition Complex For faster growing hair and hair loss & thinning! (healthyhairplus.com)
However, the treatment takes five to 10 hours and would need to be performed repeatedly to create a natural appearance as hair loss continued. (dailymail.co.uk)
The layman's guide to hair loss and its treatment. (bernsteinmedical.com)
Functional Peptides target DHT, which if not blocked, causes onset of hair loss. (iherb.com)
This type of hair loss is typically the greatest at the top of the head or around the temples. (truthinaging.com)
State-of-the-art surgical hair restoration and advanced medical hair loss treatment to patients from New York, New Jersey, Connecticut, and around the globe. (bernsteinmedical.com)
RepliCel's RCH-01 is on the forefont of innovation in the pursuit to cure hair loss. (hairlosstalk.com)
The sad fact of life is that everyone will experience hair loss at some point in their lives. (express.co.uk)
For the lucky few, this reality will only come into play much later on in their lives, but for some, the reality of hair loss became all too familiar too soon. (express.co.uk)
When a person experiences hair loss, it can often be attribute to a zinc deficiency in their diet. (express.co.uk)
In all patients, hair loss was cured or improved. (express.co.uk)
It's important to consult your doctor before embarking on new supplements for hair loss. (express.co.uk)
For the best results getting an early diagnosis for genetic hair loss can make a big difference in the success rate. (hishairclinic.com)
The pages within this menu have been carefully chosen to provide you with everything that you might be looking for related to men's hair loss. (belgraviacentre.com)
Within this menu, we have carefully selected the most relevant pages for women experiencing hair loss. (belgraviacentre.com)
The Belgravia Centre is the UK's leading hair loss clinic for a reason! (belgraviacentre.com)
Find out about the clinics and why our medical facilities and hair loss products set us aside from the rest, and meet our team of more than 70 members of staff. (belgraviacentre.com)
The questionnaire should take no more than 10 minutes to complete and will provide our hair loss specialists with all the information required to recommend an effective course of home-use treatment. (belgraviacentre.com)
However, what if you experience a serious scalp wound and face permanent hair loss on your head? (sknclinics.co.uk)
NOTE: At Bauman Medical, while we know that "hair cloning" and "hair follicle multiplication" is not yet a reality for hair restoration nor FDA-approved, Dr. Alan Bauman is always keeping a watchful eye on new stem cell hair follicle technology or related cell therapy breakthroughs that might eventually become viable and FDA-approved treatment for our hair loss patients. (baumanmedical.com)
If you or someone you know has hair loss or eyebrow or eyelash concerns, click to start either a long-distance phone consultation OR an in-person, in-office consultation with Dr. Bauman. (baumanmedical.com)
This is in contrast to non scarring hair loss. (wikipedia.org)
In some cases, hair loss is gradual, without symptoms, and is unnoticed for long periods. (wikipedia.org)
In other cases, hair loss is associated with severe itching, burning and pain and is rapidly progressive. (wikipedia.org)
Scarring hair loss occurs in otherwise healthy men and women of all ages and is seen worldwide. (wikipedia.org)
Response to therapy may be indicated by the resolution of scalp symptoms such as itching, pain, tenderness, or burning, by improvement in the signs of scalp inflammation such as decreased redness, scaling or pustules, and by halting or slowing the progression of hair loss. (wikipedia.org)
While it is possible to have more than one type of hair loss condition, non-scarring forms of hair loss do not turn into scarring forms of hair loss. (wikipedia.org)
The overall extent and pattern of hair loss is noted and sometimes photographed for future comparison. (wikipedia.org)

Other structures associated with the hair follicle include the cup in which the follicle grows known as the infundibulum, the arrector pili muscles, the sebaceous glands, and the apocrine sweat glands. (wikipedia.org)
Small arrector pili muscles are directly connected to each hair follicle. (blausen.com)

I'm not sure if they only do a urine screen, but if they happen to test my hair I wanna be prepared. (allnurses.com)
Testing the hair follicle is often thought of as more effective than urine or blood testing . (wisegeek.com)
While the average urine drug test will detect drug use up to 30 days prior to the test, one often-cited hair follicle drug testing advantage is that evaluation of hair may show drug use as far back as 90 days. (wisegeek.com)
Another advantage listed is that cutting a few hairs, usually about 100, which is very minimal, is preferable to having to provide urine or blood samples. (wisegeek.com)
While a urine drug screen can detect if you've used drugs in the last few days, a hair follicle drug test can detect drug use in the past 90 days. (healthline.com)
In addition to the variation in results depending on your family heritage, the hair tests cover a more extended time period than urine tests currently in use. (laweekly.com)
Hair follicle testing is typically ordered when someone desires a longer detection period than urine testing can provide. (requestatest.com)
In some cases, a urine drug test may be ordered along with a hair test for a more comprehensive screening. (requestatest.com)
There are numerous medication examinations that an organization may select, such as urine, blood, or hair follicle medication test. (duskac.com)

If these follicular unit grafts are closely trimmed, as is the practice with very dense packing, a much more significant number of follicles are at risk of being lost. (bernsteinmedical.com)
The utilization of the stereo microscope is the most accurate method of obtaining the highest quality hair follicle unit grafts. (regrowth.com)

Hormonal fluctuations can cause hair follicle inflammation that leads to damage. (livestrong.com)
Treating the infected hair follicles requires lifestyle changes and products to resolve the infection, reduce the inflammation and calm the skin. (livestrong.com)
The inflammation that destroys the follicle is below the skin surface and there is usually no "scar" seen on the scalp. (wikipedia.org)

Left and middle images are phase contrast and epifluorescence images, respectively, of hair follicles after dispase and collagenase treatment. (nih.gov)
Alternatively, find an appropriate hair treatment such as a white vinegar mix to wash the chemical residue out of your hair. (reference.com)
Treatment for an infected hair follicle depends on both the source of the infection and how deep it is, and can include medications such as shampoos, pills. (reference.com)
In our experience a six month A.F.D. hair regrowth program should be your starting point, because after 6 months of treatment you will start to see the results for yourself. (advancedhair.com.au)
In addition to your personalised AFD program, you will also receive the benefits of the FDA approved Advanced Laser Therapy Program and the Advanced Hair Fitness Range (a clinically proven scalp and follicle treatment program) all of which is included and supervised at your nearest Advanced Hair Studio/Clinic located conveniently in all major cities right across Australia and New Zealand. (advancedhair.com.au)
What Are the Different Types of Hair Follicle Treatment? (wisegeek.com)
Hair follicle treatment will vary, depending on whether the patient has a bacterial, fungal, or viral infection. (wisegeek.com)
Doctors can then develop a hair follicle treatment plan, which may consist of oral or topical antibiotics , antifungal drugs, or an antiviral. (wisegeek.com)
If the patient has this type, hair follicle treatment will consist of an antifungal medication. (wisegeek.com)
If successful, the treatment will be a game-changer for the hair restoration industry. (bernsteinmedical.com)
Powered by a proprietary combination of nature's well-known cure-alls, John Masters Organics' Deep Scalp Follicle Treatment & Volumizer For Thinning Hair creates the optimal conditions for fuller, healthier-looking hair. (johnmasters.com)
Hair transplantation is the only treatment option for patients with end-stage CCCA, and has been performed in a small number of patients but the results have been disappointing with low graft survival rates and slow regrowth of the transplanted hair. (clinicaltrials.gov)
Minoxidil is a topical treatment that is applied directly to the scalp twice daily and the gentle massage can sometimes help to stimulate blood flow to the hair follicles and allow its ingredients to be absorbed into the scalp. (hishairclinic.com)
If the bald patches can be treated before the follicles are completely destroyed there may be a chance of hair regrowth but as said before, once the treatment stops so will the hair regrowth particularly for genetic conditions. (hishairclinic.com)

The plan is to first carefully map a small area of the scalp without hair follicles. (clinicaltrials.gov)

Sebaceous glands are also associated with each hair follicle that produce an oily secretion to help condition the hair and surrounding skin. (medlineplus.gov)
The higher the density of the hair, the more sebaceous glands that are found. (wikipedia.org)
â Weâ ve found that we can influence wound healing with wnts or other proteins that allow the skin to heal in a way that has less scarring and includes all the normal structures of the skin, such as hair follicles and oil glands, rather than just a scar,â explains Cotsarelis. (rxpgnews.com)
Alongside hair follicles, eccrine glands are found throughout human skin and are indispensible for thermoregulation. (pnas.org)
The evolution of this novel physiological ability required a dramatic increase in the density and distribution of eccrine sweat glands relative to other mammals and a concomitant reduction of body hair cover. (pnas.org)
Differential and allelic expression analysis of the genes within this interval coupled with subsequent functional studies demonstrated that the level of En1 activity directs the relative numbers of eccrine glands and hair follicles. (pnas.org)
In addition to the cutaneous membrane, the integumentary system has several accessory structures including hair, hair follicles, and glands. (blausen.com)
Sebaceous glands secrete an oily substance called sebum that coats the hair as it moves towards the surface of the skin. (blausen.com)
Apocrine sweat glands also secrete their products directly into the hair follicle. (blausen.com)

In addition, follicle damage from common baldness - also known as male or female pattern baldness -- may be more difficult to reverse because the condition is an inherited trait. (livestrong.com)
Will the hair follicle model speed up the arrival of a baldness cure? (hishairclinic.com)

The internal root sheath is composed of three layers, Henle's layer, Huxley's layer, and an internal cuticle that is continuous with the outermost layer of the hair fiber. (wikipedia.org)

Moreover, although reciprocal changes in hair cover and eccrine gland density are required for efficient thermoregulation, it is unclear if these changes are linked by a common genetic regulation. (pnas.org)
Six months after patients were treated with RCH-01, overall hair density increased by an average of 11.8% in ten patients out of 16. (bernsteinmedical.com)
The top 10 participants reported at least a 5% or greater increase in hair density at six months post-injection with an average increase of 11.8% (as reported in the May 17, 2012 announcement). (hairlosstalk.com)
This group demonstrated a sustained response at 24 months which averaged a 4.2% increase over baseline hair density. (hairlosstalk.com)

For example, terminal hairs grow on the scalp and lanugo hairs are seen covering the bodies of fetuses in the uterus and in some newborn babies. (wikipedia.org)

The destructive inflammatory changes in all primary cicatricial alopecias occur in the infundibular region and, to a more variable degree, the isthmic region of hair follicles ( Figure 1a and b ). (pubmedcentralcanada.ca)
This discussion is confined to the primary cicatricial alopecias in which the hair follicle is the target of the destructive inflammatory process. (wikipedia.org)

The data indicate that CerS4-directed epidermal ceramide composition is essential to control hair follicle stem and progenitor cell behavior potentially through its regulation of BMP and Wnt signaling. (sigmaaldrich.com)

Anatomy37

Organisms8

Diseases11

Chemicals and Drugs34

Analytical, Diagnostic and Therapeutic Techniques and Equipment11

Phenomena and Processes23

Disciplines and Occupations1

Diverse developing mouse lineages exhibit high-level c-Myb expression in immature cells and loss of expression upon differentiation. (1/1203)

WNT signaling in the control of hair growth and structure. (2/1203)

Procyanidin oligomers selectively and intensively promote proliferation of mouse hair epithelial cells in vitro and activate hair follicle growth in vivo. (3/1203)

Topical gene delivery to murine skin. (4/1203)

Association between mouse nude gene expression and the initiation of epithelial terminal differentiation. (5/1203)

UVB irradiation stimulates deposition of new elastic fibers by modified epithelial cells surrounding the hair follicles and sebaceous glands in mice. (6/1203)

Highly persistent label-retaining cells in the hair follicles of mice and their fate following induction of anagen. (7/1203)

A rapid and dynamic regulation of GDNF-family ligands and receptors correlate with the developmental dependency of cutaneous sensory innervation. (8/1203)

Hair Follicle

Hair

Ovarian Follicle

Alopecia

Follicle Stimulating Hormone

Hair Diseases

Epidermis

Hair Removal

Sebaceous Glands

Scalp

Hair Color

Hair Cells, Auditory

Skin

Keratin-15

Keratinocytes

Dermis

Keratins, Hair-Specific

Ectodysplasins

Ovary

Keratins

Granulosa Cells

Hair Cells, Auditory, Inner

Alopecia Areata

Ovulation

Follicular Fluid

Stem Cells

Hypotrichosis

Skin Abnormalities

Melanocytes

Hair Dyes

Mice, Transgenic

Hair Cells, Vestibular

Morphogenesis

Hair Preparations

Theca Cells

Hair Cells, Auditory, Outer

Follicular Cyst

Cell Differentiation

Keratin-14

Keratins, Type II

Vibrissae

Estradiol

Progesterone

Skin Physiological Phenomena

Hypertrichosis

Regeneration

Oocytes

Immunohistochemistry

Mice, Inbred C57BL

Edar-Associated Death Domain Protein

Skin Transplantation

Gene Expression Regulation, Developmental

In Situ Hybridization

Organ Culture Techniques

Hedgehog Proteins

Sweat Glands

Luteinizing Hormone

Signal Transduction

beta Catenin

Oogenesis

Skin Neoplasms

Multipotent Stem Cells

Pilomatrixoma

Wound Healing

Mice, Knockout

Melanins

Inhibins

Wnt Proteins

Tissue Culture Techniques

Chorionic Gonadotropin

Intermediate Filament Proteins

Mice, Mutant Strains

RNA, Messenger

Cells, Cultured

Minoxidil

Lymphoid Enhancer-Binding Factor 1

Fibroblast Growth Factor 5

Animals, Newborn

Androstenedione

Eccrine Glands