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).
Chorionic Gonadotropin, beta Subunit, Human
The beta subunit of human CHORIONIC GONADOTROPIN. Its structure is similar to the beta subunit of LUTEINIZING HORMONE, except for the additional 30 amino acids at the carboxy end with the associated carbohydrate residues. HCG-beta is used as a diagnostic marker for early detection of pregnancy, spontaneous abortion (ABORTION, SPONTANEOUS); ECTOPIC PREGNANCY; HYDATIDIFORM MOLE; CHORIOCARCINOMA; or DOWN SYNDROME.
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.
Those protein complexes or molecular sites on the surfaces and cytoplasm of gonadal cells that bind luteinizing or chorionic gonadotropic hormones and thereby cause the gonadal cells to synthesize and secrete sex steroids. The hormone-receptor complex is internalized from the plasma membrane and initiates steroid synthesis.
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.
A malignant metastatic form of trophoblastic tumors. Unlike the HYDATIDIFORM MOLE, choriocarcinoma contains no CHORIONIC VILLI but rather sheets of undifferentiated cytotrophoblasts and syncytiotrophoblasts (TROPHOBLASTS). It is characterized by the large amounts of CHORIONIC GONADOTROPIN produced. Tissue origins can be determined by DNA analyses: placental (fetal) origin or non-placental origin (CHORIOCARCINOMA, NON-GESTATIONAL).
Glycoprotein Hormones, alpha Subunit
The alpha chain of pituitary glycoprotein hormones (THYROTROPIN; FOLLICLE STIMULATING HORMONE; LUTEINIZING HORMONE) and the placental CHORIONIC GONADOTROPIN. Within a species, the alpha subunits of these four hormones are identical; the distinct functional characteristics of these glycoprotein hormones are determined by the unique beta subunits. Both subunits, the non-covalently bound heterodimers, are required for full biologic activity.
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.
Hormones secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR) that stimulate gonadal functions in both males and females. They include FOLLICLE STIMULATING HORMONE that stimulates germ cell maturation (OOGENESIS; SPERMATOGENESIS), and LUTEINIZING HORMONE that stimulates the production of sex steroids (ESTROGENS; PROGESTERONE; ANDROGENS).
Follicle Stimulating Hormone
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.
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.
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.
A decapeptide that stimulates the synthesis and secretion of both pituitary gonadotropins, LUTEINIZING HORMONE and FOLLICLE STIMULATING HORMONE. GnRH is produced by neurons in the septum PREOPTIC AREA of the HYPOTHALAMUS and released into the pituitary portal blood, leading to stimulation of GONADOTROPHS in the ANTERIOR PITUITARY GLAND.
Trophoblastic growth, which may be gestational or nongestational in origin. Trophoblastic neoplasia resulting from pregnancy is often described as gestational trophoblastic disease to distinguish it from germ cell tumors which frequently show trophoblastic elements, and from the trophoblastic differentiation which sometimes occurs in a wide variety of epithelial cancers. Gestational trophoblastic growth has several forms, including HYDATIDIFORM MOLE and CHORIOCARCINOMA. (From Holland et al., Cancer Medicine, 3d ed, p1691)
A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL.
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.
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).
Trophoblastic hyperplasia associated with normal gestation, or molar pregnancy. It is characterized by the swelling of the CHORIONIC VILLI and elevated human CHORIONIC GONADOTROPIN. Hydatidiform moles or molar pregnancy may be categorized as complete or partial based on their gross morphology, histopathology, and karyotype.
Pregnancy-Associated Plasma Protein-A
A product of the PLACENTA, and DECIDUA, secreted into the maternal circulation during PREGNANCY. It has been identified as an IGF binding protein (IGFBP)-4 protease that proteolyzes IGFBP-4 and thus increases IGF bioavailability. It is found also in human FIBROBLASTS, ovarian FOLLICULAR FLUID, and GRANULOSA CELLS. The enzyme is a heterotetramer of about 500-kDa.
Pregnancy Trimester, First
A potentially life-threatening condition in which EMBRYO IMPLANTATION occurs outside the cavity of the UTERUS. Most ectopic pregnancies (>96%) occur in the FALLOPIAN TUBES, known as TUBAL PREGNANCY. They can be in other locations, such as UTERINE CERVIX; OVARY; and abdominal cavity (PREGNANCY, ABDOMINAL).
A hydroxylated metabolite of ESTRADIOL or ESTRONE that has a hydroxyl group at C3, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen. During PREGNANCY, a large amount of estriol is produced by the PLACENTA. Isomers with inversion of the hydroxyl group or groups are called epiestriol.
A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES).
Gestational Trophoblastic Disease
A group of diseases arising from pregnancy that are commonly associated with hyperplasia of trophoblasts (TROPHOBLAST) and markedly elevated human CHORIONIC GONADOTROPIN. They include HYDATIDIFORM MOLE, invasive mole (HYDATIDIFORM MOLE, INVASIVE), placental-site trophoblastic tumor (TROPHOBLASTIC TUMOR, PLACENTAL SITE), and CHORIOCARCINOMA. These neoplasms have varying propensities for invasion and spread.
Luteinizing Hormone, beta Subunit
The beta subunit of luteinizing hormone. It is a 15-kDa glycopolypeptide with structure similar to the beta subunit of the placental chorionic gonadatropin (CHORIONIC GONADOTROPIN, BETA SUBUNIT, HUMAN) except for the additional 31 amino acids at the C-terminal of CG-beta. Full biological activity of LH requires the non-covalently bound heterodimers of an alpha and a beta subunit. Mutation of the LHB gene causes HYPOGONADISM and infertility.
Cells lining the outside of the BLASTOCYST. After binding to the ENDOMETRIUM, trophoblasts develop into two distinct layers, an inner layer of mononuclear cytotrophoblasts and an outer layer of continuous multinuclear cytoplasm, the syncytiotrophoblasts, which form the early fetal-maternal interface (PLACENTA).
Condition resulting from deficient gonadal functions, such as GAMETOGENESIS and the production of GONADAL STEROID HORMONES. It is characterized by delay in GROWTH, germ cell maturation, and development of secondary sex characteristics. Hypogonadism can be due to a deficiency of GONADOTROPINS (hypogonadotropic hypogonadism) or due to primary gonadal failure (hypergonadotropic hypogonadism).
A polypeptide hormone of approximately 25 kDa that is produced by the SYNCYTIOTROPHOBLASTS of the PLACENTA, also known as chorionic somatomammotropin. It has both GROWTH HORMONE and PROLACTIN activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.
Follicle Stimulating Hormone, beta Subunit
Nuchal Translucency Measurement
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
A chromosome disorder associated either with an extra chromosome 21 or an effective trisomy for chromosome 21. Clinical manifestations include hypotonia, short stature, brachycephaly, upslanting palpebral fissures, epicanthus, Brushfield spots on the iris, protruding tongue, small ears, short, broad hands, fifth finger clinodactyly, Simian crease, and moderate to severe INTELLECTUAL DISABILITY. Cardiac and gastrointestinal malformations, a marked increase in the incidence of LEUKEMIA, and the early onset of ALZHEIMER DISEASE are also associated with this condition. Pathologic features include the development of NEUROFIBRILLARY TANGLES in neurons and the deposition of AMYLOID BETA-PROTEIN, similar to the pathology of ALZHEIMER DISEASE. (Menkes, Textbook of Child Neurology, 5th ed, p213)
Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation.
Fertilization in Vitro
Pregnancy Tests, Immunologic
Leydig Cell Tumor
Gonadal interstitial or stromal cell neoplasm composed of only LEYDIG CELLS. These tumors may produce one or more of the steroid hormones such as ANDROGENS; ESTROGENS; and CORTICOSTEROIDS. Clinical symptoms include testicular swelling, GYNECOMASTIA, sexual precocity in children, or virilization (VIRILISM) in females.
A group of polycyclic compounds closely related biochemically to TERPENES. They include cholesterol, numerous hormones, precursors of certain vitamins, bile acids, alcohols (STEROLS), and certain natural drugs and poisons. Steroids have a common nucleus, a fused, reduced 17-carbon atom ring system, cyclopentanoperhydrophenanthrene. Most steroids also have two methyl groups and an aliphatic side-chain attached to the nucleus. (From Hawley's Condensed Chemical Dictionary, 11th ed)
A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate.
Pregnancy Trimester, Second
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.
Neoplasms, Germ Cell and Embryonal
Pituitary Hormone-Releasing Hormones
Peptides, natural or synthetic, that stimulate the release of PITUITARY HORMONES. They were first isolated from the extracts of the HYPOTHALAMUS; MEDIAN EMINENCE; PITUITARY STALK; and NEUROHYPOPHYSIS. In addition, some hypophysiotropic hormones control pituitary cell differentiation, cell proliferation, and hormone synthesis. Some can act on more than one pituitary hormone.
A malignant neoplasm of the germinal tissue of the GONADS; MEDIASTINUM; or pineal region. Germinomas are uniform in appearance, consisting of large, round cells with vesicular nuclei and clear or finely granular eosinophilic-staining cytoplasm. (Stedman, 265th ed; from DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1642-3)
8-Bromo Cyclic Adenosine Monophosphate
Corpus Luteum Maintenance
Process of maintaining the functions of CORPORA LUTEA, specifically PROGESTERONE production which is regulated primarily by pituitary LUTEINIZING HORMONE in cycling females, and by PLACENTAL HORMONES in pregnant females. The ability to maintain luteal functions is important in PREGNANCY MAINTENANCE.
A radiosensitive, malignant neoplasm of the testis, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. There are three variants: classical (typical), the most common type; anaplastic; and spermatocytic. The classical seminoma is composed of fairly well differentiated sheets or cords of uniform polygonal or round cells (seminoma cells), each cell having abundant clear cytoplasm, distinct cell membranes, a centrally placed round nucleus, and one or more nucleoli. In the female, a grossly and histologically identical neoplasm, known as dysgerminoma, occurs. (Dorland, 27th ed)
A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc.
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
A glycoprotein hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Thyrotropin stimulates THYROID GLAND by increasing the iodide transport, synthesis and release of thyroid hormones (THYROXINE and TRIIODOTHYRONINE). Thyrotropin consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the pituitary glycoprotein hormones (TSH; LUTEINIZING HORMONE and FSH), but the beta subunit is unique and confers its biological specificity.
Receptors with a 6-kDa protein on the surfaces of cells that secrete LUTEINIZING HORMONE or FOLLICLE STIMULATING HORMONE, usually in the adenohypophysis. LUTEINIZING HORMONE-RELEASING HORMONE binds to these receptors, is endocytosed with the receptor and, in the cell, triggers the release of LUTEINIZING HORMONE or FOLLICLE STIMULATING HORMONE by the cell. These receptors are also found in rat gonads. INHIBINS prevent the binding of GnRH to its receptors.
Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various ENDOCRINE GLANDS and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects.
Development of SEXUAL MATURATION in boys and girls at a chronological age that is 2.5 standard deviations below the mean age at onset of PUBERTY in the population. This early maturation of the hypothalamic-pituitary-gonadal axis results in sexual precocity, elevated serum levels of GONADOTROPINS and GONADAL STEROID HORMONES such as ESTRADIOL and TESTOSTERONE.
Pituitary Hormones, Anterior
The transfer of mammalian embryos from an in vivo or in vitro environment to a suitable host to improve pregnancy or gestational outcome in human or animal. In human fertility treatment programs, preimplantation embryos ranging from the 4-cell stage to the blastocyst stage are transferred to the uterine cavity between 3-5 days after FERTILIZATION IN VITRO.
Molecular Sequence Data
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Pituitary Gland, Anterior
Cell surface proteins that bind pituitary THYROTROPIN (also named thyroid stimulating hormone or TSH) and trigger intracellular changes of the target cells. TSH receptors are present in the nervous system and on target cells in the thyroid gland. Autoantibodies to TSH receptors are implicated in thyroid diseases such as GRAVES DISEASE and Hashimoto disease (THYROIDITIS, AUTOIMMUNE).
Rats, Inbred Strains
An enzyme that catalyzes the desaturation (aromatization) of the ring A of C19 androgens and converts them to C18 estrogens. In this process, the 19-methyl is removed. This enzyme is membrane-bound, located in the endoplasmic reticulum of estrogen-producing cells of ovaries, placenta, testes, adipose, and brain tissues. Aromatase is encoded by the CYP19 gene, and functions in complex with NADPH-FERRIHEMOPROTEIN REDUCTASE in the cytochrome P-450 system.
The hollow thick-walled muscular organ in the female PELVIS. It consists of the fundus (the body) which is the site of EMBRYO IMPLANTATION and FETAL DEVELOPMENT. Beyond the isthmus at the perineal end of fundus, is CERVIX UTERI (the neck) opening into VAGINA. Beyond the isthmi at the upper abdominal end of fundus, are the FALLOPIAN TUBES.
Hydatidiform Mole, Invasive
A uterine tumor derived from persistent gestational TROPHOBLASTS, most likely after a molar pregnancy (HYDATIDIFORM MOLE). Invasive hyadatiform mole develops in about 15% of patients after evacuation of a complete mole and less frequently after other types of gestation. It may perforate the MYOMETRIUM and erode uterine vessels causing hemorrhage.
An aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen. It is converted from ANDROSTENEDIONE directly, or from TESTOSTERONE via ESTRADIOL. In humans, it is produced primarily by the cyclic ovaries, PLACENTA, and the ADIPOSE TISSUE of men and postmenopausal women.
Gonadal Steroid Hormones
Cholesterol Side-Chain Cleavage Enzyme
A mitochondrial cytochrome P450 enzyme that catalyzes the side-chain cleavage of C27 cholesterol to C21 pregnenolone in the presence of molecular oxygen and NADPH-FERRIHEMOPROTEIN REDUCTASE. This enzyme, encoded by CYP11A1 gene, catalyzes the breakage between C20 and C22 which is the initial and rate-limiting step in the biosynthesis of various gonadal and adrenal steroid hormones.
Dose-Response Relationship, Drug
Receptors, Cell Surface
Cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behavior of the target cell (From Alberts, Molecular Biology of the Cell, 2nd ed, pp693-5). Cell surface receptors, unlike enzymes, do not chemically alter their ligands.
The period from onset of one menstrual bleeding (MENSTRUATION) to the next in an ovulating woman or female primate. The menstrual cycle is regulated by endocrine interactions of the HYPOTHALAMUS; the PITUITARY GLAND; the ovaries; and the genital tract. The menstrual cycle is divided by OVULATION into two phases. Based on the endocrine status of the OVARY, there is a FOLLICULAR PHASE and a LUTEAL PHASE. Based on the response in the ENDOMETRIUM, the menstrual cycle is divided into a proliferative and a secretory phase.
False Positive Reactions
Compounds that interact with ANDROGEN RECEPTORS in target tissues to bring about the effects similar to those of TESTOSTERONE. Depending on the target tissues, androgenic effects can be on SEX DIFFERENTIATION; male reproductive organs, SPERMATOGENESIS; secondary male SEX CHARACTERISTICS; LIBIDO; development of muscle mass, strength, and power.
Ovarian Hyperstimulation Syndrome
A complication of OVULATION INDUCTION in infertility treatment. It is graded by the severity of symptoms which include OVARY enlargement, multiple OVARIAN FOLLICLES; OVARIAN CYSTS; ASCITES; and generalized EDEMA. The full-blown syndrome may lead to RENAL FAILURE, respiratory distress, and even DEATH. Increased capillary permeability is caused by the vasoactive substances, such as VASCULAR ENDOTHELIAL GROWTH FACTORS, secreted by the overly-stimulated OVARIES.
Compounds that interact with ESTROGEN RECEPTORS in target tissues to bring about the effects similar to those of ESTRADIOL. Estrogens stimulate the female reproductive organs, and the development of secondary female SEX CHARACTERISTICS. Estrogenic chemicals include natural, synthetic, steroidal, or non-steroidal compounds.
Pregnancy-Specific beta 1-Glycoproteins
The lack of development of SEXUAL MATURATION in boys and girls at a chronological age that is 2.5 standard deviations above the mean age at onset of PUBERTY in a population. Delayed puberty can be classified by defects in the hypothalamic LHRH pulse generator, the PITUITARY GLAND, or the GONADS. These patients will undergo spontaneous but delayed puberty whereas patients with SEXUAL INFANTILISM will not.
A microsomal cytochrome P450 enzyme that catalyzes the 17-alpha-hydroxylation of progesterone or pregnenolone and subsequent cleavage of the residual two carbons at C17 in the presence of molecular oxygen and NADPH-FERRIHEMOPROTEIN REDUCTASE. This enzyme, encoded by CYP17 gene, generates precursors for glucocorticoid, androgen, and estrogen synthesis. Defects in CYP17 gene cause congenital adrenal hyperplasia (ADRENAL HYPERPLASIA, CONGENITAL) and abnormal sexual differentiation.
Amino Acid Sequence
A developmental defect in which a TESTIS or both TESTES failed to descend from high in the ABDOMEN to the bottom of the SCROTUM. Testicular descent is essential to normal SPERMATOGENESIS which requires temperature lower than the BODY TEMPERATURE. Cryptorchidism can be subclassified by the location of the maldescended testis.
A malignant ovarian neoplasm, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. It is the counterpart of the classical seminoma of the testis, to which it is both grossly and histologically identical. Dysgerminomas comprise 16% of all germ cell tumors but are rare before the age of 10, although nearly 50% occur before the age of 20. They are generally considered of low-grade malignancy but may spread if the tumor extends through its capsule and involves lymph nodes or blood vessels. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1646)
A major C19 steroid produced by the ADRENAL CORTEX. It is also produced in small quantities in the TESTIS and the OVARY. Dehydroepiandrosterone (DHEA) can be converted to TESTOSTERONE; ANDROSTENEDIONE; ESTRADIOL; and ESTRONE. Most of DHEA is sulfated (DEHYDROEPIANDROSTERONE SULFATE) before secretion.
Pregnancy Trimester, Third
Maternal Serum Screening Tests
Reverse Transcriptase Polymerase Chain Reaction
Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland.
(9 alpha,11 alpha,13E,15S)-9,11,15-Trihydroxyprost-13-en-1-oic acid (PGF(1 alpha)); (5Z,9 alpha,11,alpha,13E,15S)-9,11,15-trihydroxyprosta-5,13-dien-1-oic acid (PGF(2 alpha)); (5Z,9 alpha,11 alpha,13E,15S,17Z)-9,11,15-trihydroxyprosta-5,13,17-trien-1-oic acid (PGF(3 alpha)). A family of prostaglandins that includes three of the six naturally occurring prostaglandins. All naturally occurring PGF have an alpha configuration at the 9-carbon position. They stimulate uterine and bronchial smooth muscle and are often used as oxytocics.
A progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua. As a glucocorticoid receptor antagonist, the drug has been used to treat hypercortisolism in patients with nonpituitary CUSHING SYNDROME.
Trophoblastic Tumor, Placental Site
Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.
Gene Expression Regulation
Differential transcriptional activity associated with chromatin configuration in fully grown mouse germinal vesicle oocytes. (1/3303)It was previously shown that fully grown ovarian germinal vesicle (GV) oocytes of adult mice exhibit several nuclear configurations that differ essentially by the presence or absence of a ring of condensed chromatin around the nucleolus. These configurations have been termed, respectively, SN (surrounded nucleolus) and NSN (nonsurrounded nucleolus). Work from our and other laboratories has revealed ultrastructural and functional differences between these two configurations. The aims of the present study were 1) to analyze the equilibrium between the SN and the NSN population as a function of the age of the mice and the time after hCG-induced ovulation and 2) to study the polymerase I (pol I)- and polymerase II (pol II)-dependent transcription in both types of oocytes through the detection of bromouridine incorporated into nascent RNA. We show 1) that ovarian GV oocytes exhibiting the SN-type configuration can be found as soon as 17 days after birth in the C57/CBA mouse strain and 2) that the SN:NSN ratio of ovarian GV oocytes is very low just after hCG-induced ovulation and then increases progressively with the time after ovulation. Furthermore, we demonstrate that the SN configuration correlates strictly with the arrest of both pol I- and pol II-dependent transcription in mice at any age. Finally, we show that ribosomal genes are located at the outer periphery of the nucleolus in the NSN configuration and that pol I-dependent perinucleolar transcription sites correspond to specific ultrastructural features of the nucleolus. Altogether, these results provide clear-cut criteria delineating transcriptionally active GV oocytes from those that are inactive, and confirm that the SN-type configuration is mostly present in preovulatory oocytes. (+info)
Endocrine biomarkers of early fetal loss in cynomolgus macaques (Macaca fascicularis) following exposure to dioxin. (2/3303)This study examines the endocrine alterations associated with early fetal loss (EFL) induced by an environmental toxin, TCDD (2,3,7, 8-tetrachlorodibenzo-p-dioxin), in the cynomolgus macaque, a well-documented reproductive/developmental model for humans. Females were administered single doses of 1, 2, and 4 microgram/kg TCDD (n = 4 per dose group) on gestational day (GD) 12. Urinary estrogen metabolites (estrone conjugates) were monitored to establish the day of ovulation, and serum hormones (estradiol, progesterone, chorionic gonadotropin, relaxin) were measured to assess ovarian and placental endocrine status before and after treatment. EFL occurred between GDs 22 and 32 in 10 of the 12 animals treated with TCDD. The primary endocrine alterations associated with TCDD treatment were significant decreases in serum estradiol and bioactive chorionic gonadotropin concentrations (p < 0.02). Less pronounced decreases in serum progesterone (p = 0.10) and relaxin (p < 0.08) also followed TCDD treatment. In contrast, immunoreactive chorionic gonadotropin concentrations were not reduced by TCDD exposure at any level, indicating that TCDD targets specific components of the chorionic gonadotropin synthesis machinery within the trophoblast to alter the functional capacity of the hormone. These data demonstrate the value of endocrine biomarkers in identifying a toxic exposure to primate pregnancy many days before direct signs of reproductive toxicity were apparent. The increased EFL that occurred after exposure to TCDD might reflect a toxic response initially mediated via endocrine imbalance, leading to placental insufficiency, compromised embryonic circulation, and subsequent EFL. (+info)
Molecular mechanisms of thyroid hormone-stimulated steroidogenesis in mouse leydig tumor cells. Involvement of the steroidogenic acute regulatory (StAR) protein. (3/3303)Using a mouse Leydig tumor cell line, we explored the mechanisms involved in thyroid hormone-induced steroidogenic acute regulatory (StAR) protein gene expression, and steroidogenesis. Triiodothyronine (T3) induced a approximately 3.6-fold increase in the steady-state level of StAR mRNA which paralleled with those of the acute steroid response ( approximately 4.0-fold), as monitored by quantitative reverse transcriptase-polymerase chain reaction assay and progesterone production, respectively. The T3-stimulated progesterone production was effectively inhibited by actinomycin-D or cycloheximide, indicating the requirement of on-going mRNA and protein synthesis. T3 displayed the highest affinity of [125I]iodo-T3 binding and was most potent in stimulating StAR mRNA expression. In accordance, T3 significantly increased testosterone production in primary cultures of adult mouse Leydig cells. The T3 and human chorionic gonadotropin (hCG) effects on StAR expression were similar in magnitude and additive. Cells expressing steroidogenic factor 1 (SF-1) showed marginal elevation of StAR expression, but coordinately increased T3-induced StAR mRNA expression and progesterone levels. In contrast, overexpression of DAX-1 markedly diminished the SF-1 mRNA expression, and concomitantly abolished T3-mediated responses. Noteworthy, T3 augmented the SF-1 mRNA expression while inhibition of the latter by DAX-1 strongly impaired T3 action. Northern hybridization analysis revealed four StAR transcripts which increased 3-6-fold following T3 stimulation. These observations clearly identified a regulatory cascade of thyroid hormone-stimulated StAR expression and steroidogenesis that provides novel insight into the importance of a thyroid-gonadal connection in the hormonal control of Leydig cell steroidogenesis. (+info)
Precocious estrus and reproductive ability induced by PG 600 in prepuberal gilts. (4/3303)A total of 29 SPF Large White prepuberal gilts (mean age 152 days at treatment) were examined for estrous and ovulatory responses after PG 600 treatment. After treatment, 85.2% of the gilts showed standing estrus within 6 days. Whereas the treatment-to-estrus interval and duration were 3.7 and 1.9 days respectively. As ovulation occurred on Day 5 to 6, appropriate timing of artificial insemination would be about 4 days after treatment. Fertility of gilts revealed to be excellent, giving rise to a high percentage of normal embryos, 85.3%. Meanwhile, development and growth of fetuses were mostly normal. Other reproductive performances recorded were: mean litter size 6.8; mean birth weight 1.26 kg; weaning-to-return estrus interval 5 to 8 days. In conclusion, PG 600 was found to be useful in inducing fertile estrus in prepuberal gilts, a result which will be of interest for commercial pig farms. (+info)
Utero-ovarian interaction in the regulation of reproductive function. (5/3303)The physiological regulation of fertile reproductive cycle in mammals depends on interactions between hypothalamus-pituitary, ovarian and uterine stimuli. Over the past 20 years, much has been learned about the interrelation between the affluent and effluent lymph and vascular drainage in and around both ovarian and uterine tissues. An essential feature in the regulation of the fertile cycle is the functional status of the ovary, particularly the corpus luteum. During the time of implantation and the early pregnancy, an active corpus luteum is essential. As human chorionic gonadotrophin (HCG) is important in the maintenance of the corpus luteum, we investigated if it was produced by the cyclic endometrium. Immunohistochemical and in-situ hybridization reactions were performed but neither identified the presence of HCG during the proliferative phase. Positive staining and beta-human chorionic gonadotrophin (beta-HCG) mRNA were observed during the secretory phase in the glandular cells of the endometrium. The results were confirmed by Western blotting of secretory phase endometrium extracts and assessment of the functional secretory capacity of primary endometrial cultures. Polymerase chain reaction (PCR) investigations showed a positive result in the secretory phase. We postulate that, based on the very close morphological interrelation between the uterus and the ovary, the beta-HCG of the endometrium is the primary factor for the maintenance of the corpus luteum and early pregnancy. (+info)
D-Aspartate stimulation of testosterone synthesis in rat Leydig cells. (6/3303)D-Aspartate increases human chorionic gonadotropin-induced testosterone production in purified rat Leydig cells. L-Aspartate, D-,L-glutamate or D-,L-asparagine could not substitute for D-aspartate and this effect was independent of glutamate receptor activation. Testosterone production was enhanced only in cells cultured with D-aspartate for more than 3 h. The increased production of testosterone was well correlated with the amounts of D-aspartate incorporated into the Leydig cells, and L-cysteine sulfinic acid, an inhibitor of D-aspartate uptake, suppressed both testosterone production and intracellular D-aspartate levels. D-Aspartate therefore is presumably taken up into cells to increase steroidogenesis. Intracellular D-aspartate probably acts on cholesterol translocation into the inner mitochondrial membrane, the rate-limiting process in steroidogenesis. (+info)
Modulation of the baboon (Papio anubis) uterine endometrium by chorionic gonadotrophin during the period of uterine receptivity. (7/3303)This study was undertaken to determine the modulation of uterine function by chorionic gonadotrophin (CG) in a nonhuman primate. Infusion of recombinant human CG (hCG) between days 6 and 10 post ovulation initiated the endoreplication of the uterine surface epithelium to form distinct epithelial plaques. These plaque cells stained intensely for cytokeratin and the proliferating cell nuclear antigen. The stromal fibroblasts below the epithelial plaques stained positively for alpha-smooth muscle actin (alphaSMA). Expression of alphaSMA is associated with the initiation of decidualization in the baboon endometrium. Synthesis of the glandular secretory protein glycodelin, as assessed by Western blot analysis, was markedly up-regulated by hCG, and this increase was confirmed by immunocytochemistry, Northern blot analysis, and reverse transcriptase-PCR. To determine whether hCG directly modulated these uterine responses, we treated ovariectomized baboons sequentially with estradiol and progesterone to mimic the hormonal profile of the normal menstrual cycle. Infusion of hCG into the oviduct of steroid-hormone-treated ovariectomized baboons induced the expression of alphaSMA in the stromal cells and glycodelin in the glandular epithelium. The epithelial plaque reaction, however, was not readily evident. These studies demonstrate a physiological effect of CG on the uterine endometrium in vivo and suggest that the primate blastocyst signal, like the blastocyst signals of other species, modulates the uterine environment prior to implantation. (+info)
CD9 is involved in invasion of human trophoblast-like choriocarcinoma cell line, BeWo cells. (8/3303)The CD9 molecule is expressed on human extravillous trophoblasts, which invade the endometrium during implantation and placentation. To elucidate the role of CD9 in trophoblastic function, we investigated the expression of CD9 protein and mRNA in BeWo cells, a human trophoblast-like choriocarcinoma cell line, using immunohistochemistry, Western blotting and reverse transcription-polymerase chain reaction (RT-PCR). When BeWo cells were cultured with anti-CD9 monoclonal antibodies (mAb), their invasion through the extracellular matrices was significantly enhanced in a dose-dependent manner. Cell proliferation and human chorionic gonadotrophin production were unaffected. On the other hand, culture in the presence of mAb against integrins alpha3, alpha5 and beta1, which partially block the interaction with the extracellular matrices, inhibited BeWo cell invasion. Anti-CD9 monoclonal antibody had a stimulatory effect on BeWo cell invasion in the presence of anti-integrin alpha3 antibody. In contrast, it had no effect in the presence of mAb against integrins alpha5 and beta1, which were also highly expressed on BeWo cells. These findings suggest that CD9 has a function connected with the invasive properties of BeWo cells, which is partially mediated by integrin alpha5beta1. This may relate to the involvement of CD9 in trophoblastic invasion. (+info)
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Pregnancy Outcomes in Women with Unexplained Elevation of Maternal Serum Human Chorionic Gonadotropin Levels at Midtrimester.
Our purpose was to determine the association between unexplained elevation of maternal serum human chorionic gonadotropin (hCG) in the second trimester and adverse pregnancy outcomes. MATERIAL AND METHODS: Between February 1995 and July 1999, we evaluated 1566 pregnant women who have underwent second trimester triple marker screening tests (alpha-fetoprotein, unconjugated estriol, human chorionic gonadotropin) and delivered at Severance Hospital, Yonsei Medical Center. Multiple pregnancies, abnormal fetal karyotypes, fetal anomalies, and abortions were excluded from the study. One hundred twenty-one women with hCG levels greater than 2.0 multiples of the median (MoM) were included in the study group while 1389 women with hCG levels less than 2.0 MoM served as the control group. Pregnancy outcomes were obtained from the delivery and neonatal records in our institution. Adverse pregnancy outcomes between the two groups were compared using chi-square test and Fishers exact test. RESULTS: Women ...
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Ectopic human chorionic gonadotropin in breast carcinoma<...
TY - JOUR. T1 - Ectopic human chorionic gonadotropin in breast carcinoma. AU - Castro, A.. AU - Buschbaum, P.. AU - Nadji, M.. AU - Voigt, W.. AU - Tabei, S.. AU - Morales, A.. PY - 1979/10/1. Y1 - 1979/10/1. N2 - Immunoreactive human chorionic gonadotropin (hCG) was found in 9 of 65 surgically removed malignant breast tumors. Concentrations ranged from 5 to greater than 500 mIU hCG/g tumor. hCG was measured by a β-chain specific radioimmunoassay. In further study of these specimens, an immunoperoxidase staining technique was used to stain for hCG in formalin-fixed sections. The hCG was shown to be localized within the cytoplasm and on the surface of the malignant cells.. AB - Immunoreactive human chorionic gonadotropin (hCG) was found in 9 of 65 surgically removed malignant breast tumors. Concentrations ranged from 5 to greater than 500 mIU hCG/g tumor. hCG was measured by a β-chain specific radioimmunoassay. In further study of these specimens, an immunoperoxidase staining technique was used ...
Hyperglycosylated chorionic gonadotropin - prognostic criteria development of complications of pregnancy - medexpert
National Medical Academy of Postgraduate Education P. L. Shupyk, Kiev The objective: to assess the prognostic significance of the level of serum hyperglycosylated human chorionic gonadotropin (gHCG) reative to the development of pregnancy complications that lead to impaired fetal conditions. Materials and methods. 382 pregnant women were examined who were on the register, were hospitalized in case of complications of pregnancy and gave birth to KCMH №2 (Kiev). All pregnant women were evaluated serum gCGG in the period of 8-10 weeks gestation, evaluated the course and result of pregnancy. Results. Reduction in the level of gHCG is a marker of insufficient trophoblast invasion, which is likely to lead to the formation of placental dysfunction and the development of a variety of obstetric pathology complicating the course of pregnancy and a risk factor for antenatal loss and neonatal morbidity. The conclusion. Determination of the level of hyperglycosylated human chorionic gonadotropin in the ...
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Chorionic Gonadotropin: 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).
Clinical evaluation of human chorionic gonadotropin levels in men with testicular tumors<...
TY - JOUR. T1 - Clinical evaluation of human chorionic gonadotropin levels in men with testicular tumors. AU - Cochran, J. S.. AU - Walsh, P. C.. AU - Porter, J. C.. PY - 1974/1/1. Y1 - 1974/1/1. N2 - In patients with testicular tumor, HCG β serves as a sensitive, specific marker of tumor activity. Because HCG β levels correlate well with response to therapy, this test may be useful in selecting men for adjunctive irradiation or chemotherapy. HCG β is far more sensitive and specific than conventional methods for detecting HCG production. Following unilateral orchiectomy for carcinoma of the testis, elevated serum luteinizing hormone levels are common, and may be unrelated to the presence or activity of residual tumor. In this study, 25% of patients with testicular tumors had demonstrable HCG β levels. This test should provide a reliable index for following disease activity and response to therapy.. AB - In patients with testicular tumor, HCG β serves as a sensitive, specific marker of tumor ...
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Human Chorionic Gonadotropin (hCG) during Pregnancy | Womens Health Encyclopedia
Once human chorionic gonadotropin hormone levels are between 1000 and 2000 U/ml a transvaginal ultrasound can be carried out to show the gestational sac. hCG levels can change and the date of conception may be incorrect. When the hCG levels have reached a minimum of 2000 only then would the information from the ultrasound be considered in making a diagnosis.. To make sure that you receive an accurate diagnosis, lots of hCG tests would be carried out over a period of days. By doing the tests a few days apart any questions about the pregnancy will be answered more accurately. Levels of the hCG hormone levels are not used to provide any dates for pregnancy because the numbers are so varied. The two types of human chorionic gonadotropin testings are:. ...
Purification and properties of human chorionic gonadotropin/lutropin receptor from plasma-membrane and soluble fractions of...
Plasma-membrane and soluble fractions containing human chorionic gonadotropin/lutropin receptor were prepared from bovine corpora lutea by ultracentrifugation. The plasma-membrane and soluble fractions were studied for physicochemical properties, salts and gangliosides. The receptor preparations obtained from the plasma-membrane purified individually by sucrose-density-gradient centrifugation, which resulted in a partial dissociation of the hormone-binding subunit from the intact functional receptor unit, which consists of both hormone-binding (regulatory) and adenylate cyclase-associated (catalytic) subunits. The fractions containing the functional receptor unit were further purified by gel filtration on Sepharose-6B and chromatography on concanavalin A-Sepharose. The receptor was finally purified by affinity chromatography on a column of controlled-pore glass covalently coupled to hu man chorionic gonadotropin. The purified receptor from the plasma-membrane and the soluble fractions ...
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We previously demonstrated that human chorionic gonadotropin (hCG) induced migration and invasion in human prostate cancer cells. Currently, the main methods for the treatment of prostate cancer are radical prostatectomy, external beam radiation therapy, brachytherapy, systemic androgen deprivation therapy and chemotherapy, etc. C. But the therapeutic efficacy is unsatisfactory. Development of new therapy such as molecular therapy is necessary for treating prostate cancer. CSF3R But the characterization of the molecular mechanisms causing Baicalin manufacture prostate cancer is the basis for establishing a new therapy. If we determine the therapeutic molecular targets that contributed to prostate cancer first, then we can treat patients via targeting those tumor markers to inhibit prostate cancer, further improve the prognosis Baicalin manufacture and lower the mortality. Human chorionic gonadotropins (hCGs) are heterodimeric glycoproteins secreted by trophoblastic cells in normal ...
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Paired human chorionic gonadotrophin determinations for the prediction of pregnancy outcome in assisted reproduction<...
TY - JOUR. T1 - Paired human chorionic gonadotrophin determinations for the prediction of pregnancy outcome in assisted reproduction. AU - Chen, Chin Der. AU - Ho, Hong Nerng. AU - Wu, Ming Yih. AU - Chao, Kuang Han. AU - Chen, Shee Uan. AU - Yang, Yu Shih. PY - 1997/1/1. Y1 - 1997/1/1. N2 - The aim of this study was to determine the prognostic value of single and paired measurements of serum concentrations of human chorionic gonadotrophin (HCG) for successful pregnancy following in-vitro fertilization (IVF) and tubal embryo transfer (TET). We analysed serum HCG concentrations 15 and 22 days after IVF or TET in 198 conception cycles. Cut-off values of serum HCG were determined by a receiver operating characteristic (ROC) curve. On the basis of single HCG samples on day 15 (HCG 15 ) after transfer, using a cut-off value of HCG 15 = 150 mIU/ml, the sensitivity was 71% and the specificity was 77%. The positive predictive value (HCG 15 ≤ 150 mIU/ml indicating a normal pregnancy) was 89%, while the ...
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Hyperglycosylated hCG drives malignancy in cancer cases. | Abstract
Purpose: Trophoblastic cancers (Choriocarcinoma, testicular and ovarian germ cell malignancies) secrete hyperglycosylated hCG and non-trophoblastic ca..
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Human chorionic gonadotropin (hCG) and hyperglycosylated hCG, seven semi-independent critical molecules: A review. | Abstract
hCG exists in two analogous structures, as typified by the hormone hCG which binds an LH/hCG hormone receptor and the TGFß receptor binding auto..
Gonadotropins are fertility drugs that may be prescribed when you are undergoing fertility treatment such as in vitro fertilization (IVF) or intrauterine insemination (IUI). There are several different types: human menopausal gonadotropins (hMG). follicle stimulating hormone (FSH) and human chorionic gonadotropin (hCG). Fertility doctors typically use a combination of hMG/hCG or FSH/hCG to stimulate ovulation. Human menopausal gonadotropins (HMGs) contain approximately equal amounts of follicle stimulating hormone (FSH) and luteinizing hormone (LH). hMG is administered by injection and directly stimulates the ovaries to induce the development and ovulation of one or more follicles. Follicle stimulating hormone (FSH) is an injectable drug containing genetically engineered FSH and is used to stimulate ovulation and help the ovaries produce multiple eggs.. Human chorionic gonadotropin (hCG) helps with the final maturation of the eggs and triggers the ovaries to release the mature eggs. Your fertility
Modification of the choriogonadotropin beta-subunit radioimmunoassay for determination of urinary choriogonadotropin. |...
The choriogonadotropin beta-subunit radioimminoassay has been used extensively to measure human choriogonadotropin in the sera of pregnant women and individuals with trophoblastic and nontrophoblastic tumors. Unmodified, this method cannot be used to measure choriogonadotropin in urine because of interfering substances. We circumvented the non-parallelism between the standards and serial dilutions of urine containing choriogonadotropin by adding pooled urine from men to the standard tubes and limiting the volume of urine to 100 microliter. This modified assay has a sensitivity of 3 int. units/liter of urine and is specific for choriogonadotropin concentrations of 40 int. units/liter of urine. Analytical recovery of choriogonadotropin added to urine ranged from 96 to 105%. The within-assay CV was 7.6%; the between-assay CV was 11.8%. Concentrations of choriogonadotropin in concurrently collected serum and urine samples from pregnant women correlated well. The test can be performed within 24 h by ...
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Human chorionic gonadotropin (HCG) injections can enhance embryo implantation before the embryo is transferred into the uterus. Hcg booster shot after embryo transfer is not necessary because HCG shots before embryo transfer are adequate. Progesterone is often given after embryo transfer to support and sustain a pregnancy. Human chorionic gonadotropin (HCG) injections are mainly given in women who undergo in-vitro fertilization (IVF) procedure. Human chorionic gonadotropin (HCG) is a hormone used widely in assisted reproductive treatments (ART) to induce ovulation. Assisted reproductive treatments are ways or methods to treat infertility and to make it possible for a couple to conceive. The definition of infertility is when a couple is unable to conceive despite regular and unprotected sexual intercourse for a one-year duration.. Infertility is a common condition. In the United States, 15% of couples are unable to conceive due to infertility. Infertility can affect the male partner, the female ...
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Human Chorionic Gonadotropin is a protein (or peptide) hormone. If you start to classify it more specifically, it falls into the group of oligosaccharide glycoproteins. These are protein molecules that have one or more carbohydrate / sugar molecules. Other hormones that are discussed in this document, namely LH and FSH, also belong to this group.. Glycoproteins are molecularly comprised of two subgroups, an alpha and a beta subunit. The alpha subunit of LH and hCG are identical. There is a difference in the beta subunit of these two hormones, but this is also no less than 80% identical.. That LH and hCG are very similar is also apparent from the fact that hCG can bind to the same receptor as LH, namely the LHR receptor. This is the receptor that determines how much testosterone your testicles produce. This property suddenly makes this female hormone a lot more interesting for users of anabolic steroids.. ...
peptide mimic of an antigenic loop of α-human chorionic gonadotropin hormone: solution structure and interaction with a llama...
The X-ray structure of a ternary complex between human chorionic gonadotropin hormone (hCG) and two Fvs recognizing its α and β subunits has been recently determined. The Fvs recognize the elongated hCG molecule by its two ends, one being the Leu-12-Cys-29 loop of the α subunit. We have designed and synthesized a 17-amino-acid peptide (named PepH14) derived from the sequence of this antigenic loop with the purpose of mimicking its three-dimensional structure and its affinity for antibodies. We have determined the solution structure of PepH14 by homonuclear NMR spectroscopy and derived distance restraints. Comparison of this structure with that of the corresponding antigenic loop of α-hCG reveals strong conformational similarities. In particular, the two pairs of residues that establish crucial contacts with the Fv fragment share the same conformation in PepH14 and in the authentic hormone loop. We propose a three-dimensional model of interaction of PepH14 with a llama VHH (VHH-H14) fragment ...
Dynacare - Healthcare Providers and Hospitals: Interpretation of Serum Human Chorionic Gonadotropin (hCG) Results in Pregnancy ...
The analysis of serum hCG has been used to confirm a pregnancy, to help diagnose an ectopic pregnancy, to help diagnose and monitor a pregnancy that may be failing, and/or to monitor a woman after a miscarriage. The following information helps to interpret serum hCG results in pregnancy evaluation. ...
Human chorionic gonadotropin (HCG) - Therapeutic Proteins
Human chorionic gonadotropin (HCG), a polypeptide hormone produced by the human placenta. HCG is composed of an alpha and a beta sub-unit. The alpha sub-unit is essentially identical to the alpha sub- units of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as to the alpha sub-unit of human thyroid-stimulating hormone (TSH), while the beta sub- units of these hormones differ in amino acid sequence.
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Sources Used in Current Review. Farinde, A. (Updated 2014 July 2). Human Chorionic Gonadotropin (hCG). Medscape Drugs & Diseases [On-line information]. Available online at http://emedicine.medscape.com/article/2089158-overview through http://emedicine.medscape.com. Accessed September 2014.. (Updated 2014 June 5). Pregnancy. U.S. Food and Drug Administration Medical Devices [On-line information]. Available online at http://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/InVitroDiagnostics/HomeUseTests/ucm126067.htm through http://www.fda.gov. Accessed September 2014.. Grenache, D. and Lehman, C. (Updated 2012 November). hCG Testing hCG. ARUP Consult [On-line information]. Available online at http://www.arupconsult.com/Topics/hCG.html?client_ID=LTD through http://www.arupconsult.com. Accessed September 2014.. Rollins, G. (2012 March 8). Taking a New Look at the hCG Discriminatory Level. Clinical Laboratory Strategies [On-line information]. Available online at ...
Chorionic Gonadotropin | Harvard Catalyst Profiles | Harvard Catalyst
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 ...
Comparison of human chorionic gonadotropin (hCG), deslorelin, deslorelin combined with hCG, and histrelin to induce ovulation...
Dive into the research topics of Comparison of human chorionic gonadotropin (hCG), deslorelin, deslorelin combined with hCG, and histrelin to induce ovulation in the mare. Together they form a unique fingerprint. ...
Antibody to Human Chorionic Gonadotropin hCG | Molecular Depot
Monoclonal antibody to Human Chorionic Gonadotropin hCG. Two clones (4D9 and 7H2) recognize hCG and hCG subunit beta. Size: 0.5 mg or 2 x 0.5 mg.
Overexpression of human chorionic gonadotropin causes multiple...
Overexpression of human chorionic gonadotropin causes multiple reproductive defects in transgenic mice.: Human CG is a pregnancy marker secreted by the placenta
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Human Chorionic Gonadotropin hCG - All You Need to Know!
Human chorionic gonadotropin (medically abbreviated to hCG) is a hormone that is produced by the placenta during pregnancy. It helps to keep the pregnancy going and also has an effect on the development of the baby.
Characterization of tethered equine chorionic gonadotropin and its deglycosylated mutants by ovulation stimulation in mice |...
To directly assess the biological role of oligosaccharides in recombinant equine chorionic gonadotropin (rec-eCG) functioning, cDNA encoding the full-length eCGβ-subunit was fused with the mature protein part of the α-subunit, and we examined the expression levels of deglycosylated eCG mutants, the ovulation rate for deglycosylated mutants in C57BL/6 mice. The characterizations of heterodimeric and tethered mutants were studied following their respective secretions in culture medium, molecular weight and ovulation in vivo. Rec-eCG variants containing mutations at glycosylation sites at Asn82 of the α-subunit (eCGβ/αΔ82) and Asn13 of the β-subunit (eCGβΔ13/α) were not efficiently secreted into the culture medium from transfected cells. Western blot analysis revealed that the rec-eCGβ/α proteins have an approximate broad range of molecular weights of 40-46 kDa. Three rec-eCG mutants-a deglycosylated site at Asn56 of the α-subunit (eCGβ/αΔ56), a deletion of the C-terminal region of the β
Human Chorionic Gonadotropin (HCG)
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Human chorionic gonadotropin (HCG) - HUCOG 10000 I.U
Human chorionic gonadotropin is a normally happening hormone that is found in pregnant ladies. It is regularly used to recognize pregnancy. HUCOG 10000 I.U
Human Chorionic Gonadotropin for Pregnant Women
The hCG hormone better known as Human Chorionic Gonadotropin is produced at the time of pregnancy. It is constructed by those cells which form the placenta, nourishes the fertilized egg and then attaches to the uterine wall.
Human Chorionic Gonadotropin, Urine Qualitative
Human Chorionic Gonadotropin, Urine Qualitative,ARUP Laboratories is a national reference laboratory and a worldwide leader in innovative laboratory research and development. ARUP offers an extensive test menu of highly complex and unique medical tests in clinical and anatomic pathology. Owned by the University of Utah, ARUP Laboratories client,medicine,medical supply,medical supplies,medical product
Human Chorionic Gonadotropin ELISA Kit (ab108636) References
References for Abcams Human Chorionic Gonadotropin ELISA Kit (ab108636). Please let us know if you have used this product in your publication
Research and Markets - Global Human Chorionic Gonadotropin Market Analysis - Trends, Technologies &
DUBLIN, Nov 15, 2016 /PRNewswire/ -- Research and Markets - Global Human Chorionic Gonadotropin Market Analysis - Trends, Technologies & Opportunities...
The Glycopeptins - Nova Science Publishers
BISAC: SCI013000. The concept of glycopeptins all started off as part of a bug hunt. It started off with the observation that from 70 recent obstetrics and gynecology and reproductive biology books, they all only cite hCG as just a promoter of corpus luteal progesterone, a 1920s finding, and ignore the hundreds of more recent findings. Confirmed and double confirmed science shows that hCG is a molecule with at least 12 important functions in pregnancy. That hCG is not one molecule but a group of five independent substances. These are hCG, hyperglycosylated hCG, sulfated hCG, hyperglycosylated hCG free β-subunit and fetal hCG. Each being structurally slightly different, and each having separate biological functions. If a single principal function had to be attributed to the hCG group of molecules, it was surely constructing and running placental hemochorial placentation, the process whereby a mother feeds a fetus.. And this process has nothing to do with the female gonad or ovary. How 70 major ...
Human chorionic gonadotrophin and weight loss. A double-blind, placebo-controlled trial
Low-dose human chorionic gonadotrophin (HCG) combined with a severe diet remains a popular treatment for obesity, despite equivocal evidence of its effectiveness. In a double-blind, placebo-controlled study, the effects of HCG on weight loss were compared with placebo injections. Forty obese women (body mass index , 30 kg/m2) were placed on the same diet supplying 5000 kJ per day and received daily intramuscular injections of saline or HCG, 6 days a week for 6 weeks. A psychological profile, hunger level, body circumferences, a fasting blood sample and food records were obtained at the start and end of the study, while body weight was measured weekly. Subjects receiving HCG injections showed no advantages over those on placebo in respect of any of the variables recorded. Furthermore, weight loss on our diet was similar to that on severely restricted intake. We conclude that there is no rationale for the use of HCG injections in the treatment of obesity.. ...
Correlation between second trimester maternal serum inhibin-A and human chorionic gonadotrophin for the prediction of pre...
We aimed to investigate the relationship between inhibin-A and human chorionic gonadotrophin (hCG) concentrations in the second trimester in the same cohort of women and compare their screening efficiency for the subsequent development of pre-eclamps
Gonadotropin uptake in genetic and irradiation models of ovarian tumo by W G. Beamer and B J. Tennent
Genetic and irradiation models of ovarian tumorigenesis were investigated for evidence that elevated gonadotropins have a role in tumorigenesis. Wx/Wv mice lack oocytes at birth, develop complex mesothelial adenomas by 6 mo, and additional ovarian tumor types later. Uptake of iodinated human chorionic gonadotropin (125I-hCG) was measured in mice aged 1 to 30 mo, and uptake iodinated human follicle-stimulating hormone (125I-hFSH) was measured in mice aged 1 to 12 mo. Gonadotropin uptake by Wx/Wv ovaries in vivo declined quickly and was undetectable by 6 mo. Irradiated ovaries rapidly lost oocytes and follicular structures, formed mesothelial adenomas by 5 mo, and later formed additional types of ovarian tumors. In the irradiation model, 125I-hCG uptake also declined quickly and was undetectable by 3 mo of age. Neither the surface nor the tubular epithelium of the mesothelial adenoma were consistently labeled by 125I-hCG in autoradiography studies with either model. Although these data do not
Human chorionic gonadotropin
... (hCG) is a hormone produced by the placenta after implantation. The presence of hCG is ... Human chorionic gonadotropin can be used as a tumor marker, as its β subunit is secreted by some cancers including seminoma ... Human chorionic gonadotropin is a glycoprotein composed of 237 amino acids with a molecular mass of 36.7 kDa, approximately ... Human chorionic gonadotropin interacts with the LHCG receptor of the ovary and promotes the maintenance of the corpus luteum ...
The two primary methods are: 1) testing for human pregnancy hormone (human chorionic gonadotropin (hCG)) in blood or urine and ... Lenton, E. A.; Neal, L. M.; Sulaiman, R. (June 1982). "Plasma concentrations of human chorionic gonadotropin from the time of ... Identified in the early 20th century, human chorionic gonadotropin (hCG) is a glycoprotein hormone that rises quickly in the ... Braunstein, G. D.; Rasor, J.; Danzer, H.; Adler, D.; Wade, M. E. (15 November 1976). "Serum human chorionic gonadotropin levels ...
Glycoprotein hormones, alpha polypeptide
The gonadotropin hormones, human chorionic gonadotropin (hCG), luteinizing hormone (LH), follicle-stimulating hormone (FSH), ... Moyle WR, Bahl OP, März L (Dec 1975). "Role of carbohydrate of human chorionic gonadotropin in the mechanism of hormone action ... Morgan FJ, Birken S, Canfield RE (Jul 1975). "The amino acid sequence of human chorionic gonadotropin. The alpha subunit and ... Matzuk MM, Keene JL, Boime I (Feb 1989). "Site specificity of the chorionic gonadotropin N-linked oligosaccharides in signal ...
"Human Chorionic Gonadotropin (hCG)". WebMD. 2010. Retrieved 2013-12-07. Fong CY, Bongso A, Ng SC, Anandakumar C, Trounson A, ... The level of human chorionic gonadotropin secreted by the blastocyst during implantation is the factor measured in a pregnancy ... The enzymes released degrade the endometrial lining, while autocrine growth factors such as human chorionic gonadotropin (hCG) ... Srisuparp S, Strakova Z, Fazleabas AT (2001). "The role of chorionic gonadotropin (CG) in blastocyst implantation". Archives of ...
An increase in human chorionic gonadotropin. It is probably not the HCG itself that causes the nausea. More likely, it is the ... The cause of morning sickness is unknown but may relate to changing levels of the hormone human chorionic gonadotrophin. Some ... The cause of morning sickness is unknown but may relate to changing levels of estrogen and the hormone human chorionic ...
Chorionic gonadotropin, beta polypeptide 5 is a protein that in humans is encoded by the CGB5 gene. This gene is a member of ... Kuorelahti, A; Rulli, S; Huhtaniemi, I; Poutanen, M (2007). "Human chorionic gonadotropin (hCG) up-regulates wnt5b and wnt7b in ... provided by RefSeq, Jul 2008]. "Entrez Gene: Chorionic gonadotropin, beta polypeptide 5". Retrieved 2014-08-28. Lustbader, J. W ... "Crystal structure of a ternary complex between human chorionic gonadotropin (hCG) and two Fv fragments specific for the alpha ...
2015). Human chorionic gonadotropin (hCG) (2nd ed.). Amsterdam: Elsevier. ISBN 978-0-12-800821-8. Qasim SM, Callan C, Choe JK ( ... These signs include: the presence of human chorionic gonadotropin (hCG) in the blood and urine missed menstrual period ... "The predictive value of an initial serum beta human chorionic gonadotropin level for pregnancy outcome following in vitro ...
Most of the research into immunity that inhibits gamete outcome has focused on human chorionic gonadotropin (hCG). hCG is not ... Braunstein GD, Rasor J, Danzer H, Adler D, Wade ME (November 1976). "Serum human chorionic gonadotropin levels throughout ... Fishel, SB; RG Edwards; CJ Evans (1984). "Human chorionic gonadotropin secreted by preimplantation embryos cultured in vitro". ... Talwar, GP; JC Gupta; NV Shankar (2011). "Immunological approaches against human chorionic gonadotropin for control of ...
His doctoral thesis showed that the gonadotropin hormone present in the urine of pregnant women is produced by chorionic tissue ... he thus named the hormone human chorionic gonadotropin. His later research covered topics including androgen hormones, 17- ... Hamburger's early research was focused on gonadotropins. He was the first to show that the urine of castrated males contains ...
"Entrez Gene: CGB2 chorionic gonadotropin, beta polypeptide 2". Dirnhofer S, Hermann M, Hittmair A, Hoermann R, Kapelari K, ... 1984). "The beta chorionic gonadotropin-beta luteinizing gene cluster maps to human chromosome 19". Hum. Genet. 67 (2): 174-177 ... Policastro P, Ovitt CE, Hoshina M, Fukuoka H, Boothby MR, Boime I (Nov 1983). "The beta subunit of human chorionic gonadotropin ... The beta subunit of chorionic gonadotropin (CGB) is encoded by six highly homologous and structurally similar genes that are ...
Cryoconservation of animal genetic resources
While in pigs, equine chorionic gonadotropin is preferred. However, this is not commonly done in the swine industry because ... The hormones used are typically gonadotropin-like, meaning they stimulate the gonads. Follicle stimulating hormone is the ...
They produce high concentrations of equine chorionic gonadotropin (eCG), also called pregnant mare's serum gonadotropin, in the ... Endometrial cups form during pregnancy in mares and are the source of equine chorionic gonadotropin (eCG) and a placenta- ... "Endometrial Cups and Secretion of Equine Chorionic Gonadotropin". Colorado State University. Retrieved 17 April 2016. CS1 maint ... They begin to develop at approximately 25 days of pregnancy, deriving from the chorionic girdle. At approximately 36-38 days of ...
Another treatment for hypogonadism is human chorionic gonadotropin (hCG). This stimulates the LH receptor, thereby promoting ... Physicians measure gonadotropins (LH and FSH) to distinguish primary from secondary hypogonadism. In primary hypogonadism the ... Isolated Gonadotropin-Releasing Hormone (GnRH) Deficiency Overview at National Center for Biotechnology Information. ... Chudnovsky A, Niederberger CS (2007). "Gonadotropin therapy for infertile men with hypogonadotropic hypogonadism". Journal of ...
2015-01-01). Human chorionic gonadotropin (hCG) (2nd ed.). Amsterdam: Elsevier. ISBN 978-0-12-800821-8.. ... Qasim SM, Callan C, Choe JK (1996). "The predictive value of an initial serum beta human chorionic gonadotropin level for ... the presence of human chorionic gonadotropin (hCG) in the blood and urine ...
Online Mendelian Inheritance in Man (OMIM): CHORIONIC GONADOTROPIN, ALPHA CHAIN; CGA - 118850 Ulloa-Aguirre A, Reiter E, ... Vihko KK (May 1996). "Gonadotropins and ovarian gonadotropin receptors during the perimenopausal transition period". Maturitas ... and human chorionic gonadotropin (hCG). The alpha subunits of the glycoproteins LH, FSH, TSH, and hCG are identical and consist ... "Gonadotropin-releasing hormone regulation of gonadotropin subunit gene expression in female rats: actions on follicle- ...
Kuo, H. C.; Sheen, J. M.; Wu, K. S.; Wei, H. H.; Hsiao, C. C. (2006). "Precocious puberty due to human chorionic gonadotropin- ... The tumor is called a chorionic gonadotropin secreting pineal tumor. Radiotherapy and chemotherapy reduced tumor and beta-hCG ... Santos-Silva, Rita; Bonito-Vítor, Artur; Campos, Miguel; Fontoura, Manuel (2014). "Gonadotropin-Dependent Precocious Puberty in ... "Slipped capital femoral epiphysis during the treatment of precocious puberty with a gonadotropin-releasing hormone-agonist: ...
In humans, modern pregnancy tests detect human chorionic gonadotropin (hCG). hCG is not present until after implantation, which ...
Endocrinology of reproduction
... including human chorionic gonadotropin (hCG) and progesterone (P4). Human chorionic gonadotropin (hCG), progesterone, 17β- ... Fertil Steril, 38, 303-311 Licht, P. et al (2007). Is human chorionic gonadotropin directly involved in the regulation of human ... Gallego, M. et al (2010). The pregnancy hormones human chorionic gonadotropin and progesterone induce human embryonic stem cell ... Uterine angiogenesis is upregulated by human chorionic gonadotropin and progesterone and downregulated by estrogen. The balance ...
Satish K. Gupta
Human chorionic gonadotropin and Gonadotropin-releasing hormone on reproductive functions. The team led by him has carried out ...
Om P. Bahl
He was known for his studies on Human chorionic gonadotropin, popularly known as the pregnancy hormone. He was associated with ... Swaminathan N, Bahl OP (July 1970). "Dissociation and recombination of the subunits of human chorionic gonadotropin". Biochem ... The Role of Carbohydrate in the Biological Function of Human Chorionic Gonadotropin. Current Topics in Molecular Endocrinology ... "Structures of IV-Glycosidic Carbohydrate Units of Human Chorionic Gonadotropin" (PDF). Journal of Biological Chemistry. 254 (16 ...
A comparative study with the distribution of human chorionic gonadotropin". Cancer. 62 (3): 569-76. doi:10.1002/1097-0142( ... "Immunohistochemical localization of thrombomodulin in chorionic diseases of the uterus and choriocarcinoma of the stomach. ...
Cole, Laurence A.; Butler, Stephen A. (17 February 2020). 100 Years of Human Chorionic Gonadotropin: Reviews and New ... "Human Chorionic Gonadotropin (hCG) in the Secretome of Cultured Embryos: Hyperglycosylated hCG and hCG-Free Beta Subunit Are ...
"Human chorionic gonadotropin secreted by preimplantation embryos cultured in vitro". Science, vol 223 no. 4638, pp 816 - 818. ...
The most commonly used hormone therapy is human chorionic gonadotropin (hCG). A series of hCG injections (10 injections over ... as can stimulation with a few injections of human chorionic gonadotropin to elicit a rise of the testosterone level. ... Hormone levels (especially gonadotropins and AMH) can help confirm that hormonally functional testes are worth attempting to ... This is attributed to the postnatal surge of gonadotropins and testosterone that normally occurs between the first and fourth ...
Maternal recognition of pregnancy
Cole LA (January 2009). "New discoveries on the biology and detection of human chorionic gonadotropin". Reproductive Biology ... Progesterone release from the CL is promoted by Human chorionic gonadotrophin (HCG) produced by the cells of the trophoblast, ...
Implantation (human embryo)
Human chorionic gonadotropin is an autocrine growth factor for the blastocyst. Insulin-like growth factor 2, on the other hand ... Human chorionic gonadotropin (hCG) not only acts as an immunosuppressive, but also "notifies" the mother's body that she is ... Such agents are Platelet-activating factor, human chorionic gonadotropin, early pregnancy factor, immunosuppressive factor, ... Eventually, the syncytiotrophoblasts come into contact with maternal blood and form chorionic villi. This is the initiation of ...
The vaccine operated by eliciting antibodies against human chorionic gonadotropin (hCG) a cancer associated protein expressed ... is a peptide fragment of Human chorionic gonadotropin (hCG), an oncofoetal protein expressed by most cancer lines, the ... "Clinical and immunological effects of a synthetic beta-human chorionic gonadotropin vaccine". Int. J. Oncol. 5 (6): 1447-1454. ... "Active Specific Immunotherapy with a Beta-Human Chorionic Gonadotropin Peptide Vaccine in Patients with Metastatic Colorectal ...
Partial androgen insensitivity syndrome
One such test is the human chorionic gonadotropin (hCG) stimulation test. If the gonads are testes, there will be an increase ... A genital skin fibroblast study and a human chorionic gonadotropin (hCG) stimulation test may also provide information helpful ... or after human chorionic gonadotropin (hCG) stimulation can be used to exclude such defects in androgen biosynthesis. ... resulting in the reduction of gonadotropins (i.e., luteinizing hormone and follicle-stimulating hormone) and spermatogenic ...
Human chorionic gonadotropin (HCG), thyroid-stimulating hormone (TSH) Enzyme Various, e.g., alkaline phosphatase, patatin ... gonadotropins (luteinizing hormone a follicle-stimulating hormone). *glycoprotein IIb/IIIa, an integrin found on platelets that ...
Knight AK, Bingemann T, Cole L, Cunningham-Rundles C (August 2005). "Frequent false positive beta human chorionic gonadotropin ...
Androstenediol (A5) is the steroid metabolite thought to act as the main regulator of gonadotropin secretion. ... human chorionic gonadotrophin (hCG) promotes the differentiation of Leydig cells and their production of androgens at week 8. ...
regulation of chorionic trophoblast cell proliferation. • regulation of bicellular tight junction assembly. • regulation of ... chorionic trophoblast cell differentiation. • positive regulation of protein targeting to mitochondrion. • positive regulation ...
Gonadotropin-releasing hormone agonist
... followed by human chorionic gonadotropins (hCG) to trigger oocyte release. GnRH agonists routinely used for this purpose are: ... A gonadotropin-releasing hormone agonist (GnRH agonist) is a type of medication which affects gonadotropins and sex hormones.[1 ... When used to suppress gonadotropin release, GnRH agonists can lower sex hormone levels by 95% in both sexes. ... They are agonists of the GnRH receptor and work by increasing or decreasing the release of gonadotropins and the production of ...
Gonadotropin therapy, in the form of human chorionic gonadotropin (hCG) injections, with or without the use of FSH, can also be ... Testosterone gel sachets, Testosterone undecanoate injection (Nebido), Human chorionic gonadotropin (hCG) injection, Menotropin ... Gonadotropin therapy can be used in both male and female patients in order to achieve fertility for some people. ... GnRHR (Gonadotropin-releasing hormone insensitivity). *EDNRB (ABCD syndrome, Waardenburg syndrome 4a, Hirschsprung's disease 2) ...
Human chorionic gonadotropin (hCG) may be elevated in some cases, but this correlates more to the presence of trophoblast cells ...
Beta polipeptid luteinizirajućeg hormona
Berger P, Kranewitter W, Madersbacher S, et al. (1994). "Eutopic production of human chorionic gonadotropin beta (hCG beta) and ... Talmadge K, Vamvakopoulos NC, Fiddes JC (1984). "Evolution of the genes for the beta subunits of human chorionic gonadotropin ... "A single gene encodes the beta-subunits of equine luteinizing hormone and chorionic gonadotropin". Mol. Endocrinol. 6 (6): 951- ... "Evolution of different transcriptional start sites in the human luteinizing hormone and chorionic gonadotropin beta-subunit ...
Follicle stimulating hormone (FSH), luteinizing hormone (LH), and human chorionic gonadotropin (hCG), through control of ...
National Institutes of Health
1970s - Developed the assay for human chorionic gonadotropin that evolved into the home pregnancy tests. ...
eCG - equine chorionic gonadotropin - also called PMSG (pregnant mare serum gonadotropin): chorionic gonadotropins secreted if ... GnRH (Gonadotropin releasing hormone): secreted by the hypothalamus, causes the pituitary to release two gonadotrophins: LH and ...
From 1984 to 1985, a weight-loss clinic in Los Angeles administered human chorionic gonadotropin (hCG) with a Med-E-Jet ...
Galanin receptor 1
Gonadotropin. LH/CG. *Agonists: Choriogonadotropin alfa. *Human chorionic gonadotropin. *Luteinizing hormone. *Lutropin alfa ...
... chorionic gonadotropins, human chorionic gonadotropin (hCG) and equine chorionic gonadotropin (eCG), as well as at least two ... Another human gonadotropin is human chorionic gonadotropin (hCG), produced by the placenta during pregnancy. ... although primates produce a third gonadotropin called chorionic gonadotropin (CG). LH and FSH are heterodimers consisting of ... Laurence A. Cole (21 September 2010). Human Chorionic Gonadotropin (hCG). Elsevier. pp. 205-. ISBN 978-0-12-384908-3. .. ...
Hormon - Wikipédia
gonadotropin korionik manusa (human chorionic gonadotropin, hCG). *hormon pertumbuhan (growth hormon, GH atawa hGH) ... hormon nu ngaleupaskeun gonadotropin (gonadotropin-releasing hormone, GnRH). *hormon nu ngaleupaskeun hormon kamekaran (growth ...
Antibodies raised against human chorionic gonadotropin are used in over the counter pregnancy tests. ...
Endocrine system - Simple English Wikipedia, the free encyclopedia
Human chorionic gonadotropin (HCG) Syncytiotrophoblast. *Human placental lactogen (HPL) Syncytiotrophoblast. *Inhibin Fetal ... Gonadotropin-releasing hormone (GnRH) Neuroendocine cells of the Preoptic area. *Growth hormone-releasing hormone (GHRH) ...
Louvet JP, Harman SM, Ross GT (May 1975). "Effects of human chorionic gonadotropin, human interstitial cell stimulating hormone ... and human chorionic gonadotropin (hCG). The protein dimer contains 2 glycopeptidic subunits (labeled alpha- and beta- subunits ... human chorionic gonadotropin), a hormone very similar to LH but secreted from the new placenta. ... "A review of luteinising hormone and human chorionic gonadotropin when used in assisted reproductive technology". Reproductive ...
The fetuses are evaluated, first by ultrasound, then often by testing the amniotic fluid and chorionic villus sampling; these ...
Ugonjwa wa asubuhi, kamusi elezo huru
Ongezeko katika human "chorionic gonadotropin".. *Ongezeko katika kuhisi harufu, ambayo huanzisha uchochezi zaidi wa ...
Liosta Bithmhóilíní - Vicipéid
human chorionic gonadotropin (hCG). *Human growth hormone. *Hyaluronate. *Hyaluronidase. *Sárocsaíd hidrigine Hydrogen peroxide ...
Gonadotropin preparations. *Human chorionic gonadotropin. *Interferon beta-1a. *Levothyroxine. *Luteinizing hormone. *Metformin ...
Home pregnancy test involves ELISA to detect the increase of human chorionic gonadotropin (hCG) during pregnancy. ...
... , also called chorionic somatomammotropin, is a polypeptide placental hormone, part of the somatotropin ...
Gonadotropin therapy involves the use of human chorionic gonadotropin (hCG) and FSH. In the male, hCG stimulates Leydig cells ... Gonadotropin therapy in HH men usually is able to generate enough sperm for fertility to occur, however sperm count is still ... 1] The release of gonadotropins, LH and FSH, act on the gonads for the development and maintenance of proper adult reproductive ... In the female, the goal for gonadotropin therapy is to obtain ovulation. This is obtained with FSH treatment followed by hCG or ...
... progesterone and human chorionic gonadotropin. These attempts were unsuccessful, but set the stage for presaged the use of ...
... gonadotropin-releasing hormone analogues, human growth hormone, human chorionic gonadotropin, 5α-reductase inhibitors such as ... and human chorionic gonadotropin have been found in male breast tissue, but the impact of these various hormones on ... serum beta human chorionic gonadotropin (β-hCG), and prolactin. High levels of prolactin are uncommon in people with ... A high level of prolactin in the blood can inhibit the release of gonadotropin-releasing hormone and therefore cause central ...
منوتروپین - ویکیپدیا، دانشنامهٔ آزاد
... including small amounts of human chorionic gonadotropin (hCG). In 1949 Piero Donini found a relatively simple method to ... Gonadotropin preparations. References. *^ a b Van De Weijer, B. H.; Mulders, J. W.; Bos, E. S.; Verhaert, P. D.; Van Den Hooven ... Pergonal was the major hMG prior to the arrival of recombinant gonadotropins containing 75 IU FSH and 75 IU LH.. *HMG Massone, ... Menotropin (also called human menopausal gonadotropin or hMG) is a hormonally active medication for the treatment of fertility ...
Other methods may include research of high serum levels of gonadotropins (follicle-stimulating hormone and luteinizing hormone ... presence of azoospermia, determination of the sex chromatin, and prenatally via chorionic villus sampling or amniocentesis ...
مؤسسه ملی سلامت - ویکیپدیا، دانشنامهٔ آزاد
1970s - Developed the assay for human chorionic gonadotropin that evolved into the home pregnancy tests. ...
Human chorionic gonadotropin - Wikipedia
Human chorionic gonadotropin (hCG) is a hormone produced by the placenta after implantation. The presence of hCG is ... Human chorionic gonadotropin can be used as a tumor marker, as its β subunit is secreted by some cancers including seminoma ... Human chorionic gonadotropin is a glycoprotein composed of 237 amino acids with a molecular mass of 36.7 kDa, approximately ... Human chorionic gonadotropin interacts with the LHCG receptor of the ovary and promotes the maintenance of the corpus luteum ...
Equine chorionic gonadotropin - Wikipedia
Chorionic gonadotropin beta - Wikipedia
... chorionic gonadotropin". Fiddes JC, Goodman HM (August 1980). "The cDNA for the beta-subunit of human chorionic gonadotropin ... This gene is a member of the glycoprotein hormone beta chain family and encodes the beta 3 subunit of chorionic gonadotropin ( ... "The beta subunit of human chorionic gonadotropin is encoded by multiple genes". J. Biol. Chem. 258 (19): 11492-9. PMID 6194155 ... Choriogonadotropin subunit beta (CG-beta) also known as chorionic gonadotrophin chain beta is a protein that in humans is ...
Chorionic Gonadotropin Watson - Drugs.com
A list of US medications equivalent to Chorionic Gonadotropin Watson is available on the Drugs.com website. ... Chorionic Gonadotropin Watson is a medicine available in a number of countries worldwide. ... Ingredient matches for Chorionic Gonadotropin Watson. Chorionic Gonadotropin (Hcg). Chorionic Gonadotrophin is reported as an ... Chorionic Gonadotropin Watson. In some countries, this medicine may only be approved for veterinary use. ...
human chorionic gonadotropin - Everything2.com
Chorionic gonadotropin - definition of chorionic gonadotropin by The Free Dictionary
chorionic gonadotropin synonyms, chorionic gonadotropin pronunciation, chorionic gonadotropin translation, English dictionary ... n. gonadotropin produced and secreted by the chorion. Compare human chorionic gonadotropin. Random House Kernerman Websters ... chorion′ic gonadotro′pin. n. gonadotropin produced and secreted by the chorion. Compare human chorionic gonadotropin. ... untranslated regions of equine chorionic gonadotropin genes and serum equine chorionic gonadotropin levels ...
CGB3 chorionic gonadotropin subunit beta 3 [Homo sapiens (human)] - Gene - NCBI
chorionic gonadotropin beta 3 subunit. chorionic gonadotropin beta chain. chorionic gonadotropin beta subunit 3. chorionic ... CGB3 chorionic gonadotropin subunit beta 3 [Homo sapiens] CGB3 chorionic gonadotropin subunit beta 3 [Homo sapiens]. Gene ID: ... chorionic gonadotropin subunit beta 3provided by HGNC. Primary source. HGNC:HGNC:1886 See related. Ensembl:ENSG00000104827 MIM: ... Chorionic Gonadotropin, beta Subunit promoted the migration and invasion of CRC in vitro and in vivo but had no effect on the ...
Human chorionic gonadotropin - definition of human chorionic gonadotropin by The Free Dictionary
human chorionic gonadotropin synonyms, human chorionic gonadotropin pronunciation, human chorionic gonadotropin translation, ... English dictionary definition of human chorionic gonadotropin. n. Abbr. HCG A hormone produced by the placenta that maintains ... human chorionic gonadotropin. Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia. human chorionic ... Human chorionic gonadotropin - definition of human chorionic gonadotropin by The Free Dictionary https://www.thefreedictionary. ...
Chorionic Gonadotropin (Human): Pediatric Medication | Memorial Sloan Kettering Cancer Center
Human chorionic gonadotropin (hCG or b-hCG) - Canadian Cancer Society
Human chorionic gonadotropin (HCG or b-HCG) is a hormone normally produced by the placenta during pregnancy. It is also ... Human chorionic gonadotropin (hCG or b-hCG). Human chorionic gonadotropin (hCG or b-hCG) is a hormone that the placenta makes ... Cancer information / Diagnosis and treatment / Tests and procedures / Human chorionic gonadotropin (HCG or b-HCG) ...
HCG Human Chorionic Gonadotropin: uses & side-effects | PatientsLikeMe
human chorionic gonadotropin (HCG) (injectable) | Cigna
Human chorionic gonadotropin (HCG) is a hormone that supports the normal development of an egg in a womans ovary, and ... human chorionic gonadotropin (HCG) (injectable). Skip to the navigation Pronunciation: HUE man KORE ee ON ik goe NAD oh TRO pin ... Human chorionic gonadotropin (HCG) is given as an injection under the skin or into a muscle. If you use this medicine at home, ... Human chorionic gonadotropin (HCG) is a hormone that supports the normal development of an egg in a womans ovary, and ...
Novarel (Chorionic Gonadotropin for Injection): Uses, Dosage, Side Effects, Interactions, Warning
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Lovejoy, J., Sasagawa, M. An unfortunate resurgence of human chorionic gonadotropin use for weight loss. Int J Obes 36, 385-386 ... An unfortunate resurgence of human chorionic gonadotropin use for weight loss. *J C Lovejoy. 1. & ... Lijesen GK, Theeuwen I, Assendelft WJ, Van Der Wal G . The effect of human chorionic gonadotropin (HCG) in the treatment of ... Fanchin R, Peltier E, Frydman R, de Ziegler D . Human chorionic gonadotropin: does it affect human endometrial morphology in ...
Human chorionic gonadotropin - Simple English Wikipedia, the free encyclopedia
Human chorionic gonadotropin (hCG) is a hormone produced during pregnancy. Some tumors might produce this hormone. From ... "New discoveries on the biology and detection of human chorionic gonadotropin". Reproductive Biology and Endocrinology : RB&E. 7 ... Retrieved from "https://simple.wikipedia.org/w/index.php?title=Human_chorionic_gonadotropin&oldid=6442654" ...
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Human Chorionic Gonadotropin is produced from a sterile preparation of placental glucoprotein urine of post-menopausal women ... Chorionic gonadotropin, hCG, CG.. Introduction. Human chorionic gonadotropin (hCG) is a peptide hormone produced in pregnancy, ... Human Chorionic Gonadotropin is produced from a sterile preparation of placental glucoprotein urine of pregnant women having a ... It is recommended to reconstitute the lyophilized Human Chorionic Gonadotropin in sterile 18MΩ-cm H2O not less than 100 µg/ml, ...
Dedifferentiated Liposarcoma of the Retroperitoneum with Extensive Leiomyosarcomatous Differentiation and ...
Human Chorionic Gonadotropin Production. Michael J. Russell,1,2 Frederick L. Flynt,3 Allyson L. Harroff,4 and Oluwole Fadare1,5 ... subunit of human chorionic gonadotropin in osteosarcoma," Archives of Pathology and Laboratory Medicine, vol. 113, no. 4, pp. ... human chorionic gonadotropin in colorectal carcinoma," Surgery Today, vol. 26, no. 12, pp. 966-970, 1996. View at Publisher · ... M. Szturmowicz, E. Wiatr, A. Sakowicz et al., "The role of human chorionic gonadotropin β. subunit elevation in small-cell lung ...
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"Chorionic Gonadotropin" by people in Harvard Catalyst Profiles by year, and whether "Chorionic Gonadotropin" was a major or ... Hyperglycosylated human chorionic gonadotropin as a predictor of ongoing pregnancy. Am J Obstet Gynecol. 2020 01; 222(1):68.e1- ... "Chorionic Gonadotropin" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical ... Human chorionic gonadotropin and risk of pre-eclampsia: prospective population-based cohort study. Ultrasound Obstet Gynecol. ...
Synonyms for human chorionic gonadotropin | Synonym.com
Conformation of Beta Human Chorionic Gonadotropin During Chemotherapy for Choriocarcinoma - Full Text View - ClinicalTrials.gov
Conformation of Beta Human Chorionic Gonadotropin During Chemotherapy for Choriocarcinoma. The safety and scientific validity ... Drug Information available for: Chorionic Gonadotropin Choriogonadotropin Alfa Genetic and Rare Diseases Information Center ... Structure of the human chorionic gonadotropin beta-subunit fragment from pregnancy urine. Endocrinology. 1988 Jul;123(1):572-83 ... Conformation of Beta Human Chorionic Gonadotropin During Chemotherapy for Persistent Gestational Trophoblastic Tumors Using ...
Subunit betaPregnancyGlycoprotein hormoneOvulationInjectionMenopausalSerum human chorionic goUrineGonadotrophinPlacentaAbstractSecreted by the chorionNOVARELUrinary5,000Follicle-stimulaHormonesHormone producedReceptorMaternal2018VilliBiological specificityAntibodyDescriptorBeta5000iuDetectionTumorsProteinLUTEINIZING HORMONEPituitaryPregnantSterileTestosteroneMedicationsSide-effectsDoseAminoVial
- Human chorionic gonadotropin interacts with the LHCG receptor of the ovary and promotes the maintenance of the corpus luteum during the beginning of pregnancy . (wikipedia.org)
- Human chorionic gonadotropin has been known for decades as pregnancy related hormone that can help clinicians in early detection of pregnancy, it acts as a tumor marker in gestational trophoblastic tumors as well. (thefreedictionary.com)
- It has long been assumed that the pregnancy hormones, human chorionic gonadotropin or estrogen, were the likely culprits of extreme nausea and vomiting, but our study found no evidence to support this," Fejzo, the author of the study said. (thefreedictionary.com)
- It remains unclear whether the introduction of human chorionic gonadotropin (r-hCG) as a method of triggering ovulation for IUI timing results in a higher clinical pregnancy rate when compared to IUI timed according to spontaneous LH surge. (thefreedictionary.com)
- Human chorionic gonadotropin potentially affects pregnancy outcome in women with recurrent implantation failure by regulating the homing preference of regulatory T cells. (nih.gov)
- Serial beta-subunit human chorionic gonadotropin doubling time as a prognosticator of pregnancy outcome in an infertile population. (thefreedictionary.com)
- Qualitative point-of-care (POC)  human chorionic gonadotropin (hCG) testing is routinely performed on urine samples obtained in the Emergency Department (ED) or before surgery to rule out pregnancy and prevent fetal injury or death. (thefreedictionary.com)
- Adnexal sonographic findings in ectopic pregnancy and their correlation with tubal rupture and human chorionic gonadotropin levels. (thefreedictionary.com)
- Diagnostic testing company Quidel Corporation (NASDAQ:QDEL) revealed on Monday the receipt of 510(k) clearance from the US Food and Drug Administration (FDA) for its Sofia hCG fluorescent immunoassay (FIA) for use on the Sofia Analyzer for the rapid, objective detection of elevated levels of human chorionic gonadotropin (hCG), an early indicator of pregnancy. (thefreedictionary.com)
- Human chorionic gonadotropin (hCG) is produced during pregnancy by the embryo. (bookdepository.com)
- Chorionic Gonadotropin is a water soluble glycoprotein derived from human pregnancy urine. (rxlist.com)
- Human chorionic gonadotropin (hCG) is a hormone produced during pregnancy . (wikipedia.org)
- Human chorionic gonadotropin (HCG) is a glycoprotein hormone comprising two subunits, alpha and beta, and is an important index for pregnancy and gestational trophoblastic disease [ 6 , 7 ]. (hindawi.com)
- Human chorionic gonadotropin (hCG) is a peptide hormone produced in pregnancy, that is made by the embryosoon after conception and later by the syncytiotrophoblast(part of the placenta). (prospecbio.com)
- Similar to the pituitary LUTEINIZING HORMONE in structure and function, chorionic gonadotropin is involved in maintaining the CORPUS LUTEUM during pregnancy. (harvard.edu)
- Hyperglycosylated human chorionic gonadotropin as a predictor of ongoing pregnancy. (harvard.edu)
- A molecular model of human chorionic gonadotropin, a glycoprotein hormone produced by the placenta during early pregnancy. (sciencephoto.com)
- Human chorionic gonadotropin (hCG) has been regarded as a biomarker for the diagnosis of pregnancy and some cancers. (mdpi.com)
- Experimental observations suggest that human chorionic gonadotropin (hCG), a major hormone of pregnancy, could play a role in this association. (diva-portal.org)
- Human chorionic gonadotropin (hCG) is a placental hormone that stimulates secretion of the pregnancy-sustaining steroid progesterone. (thermofisher.com)
- Human chorionic gonadotropin beta subunit (CGB) is a marker of pregnancy as well as trophoblastic and nontrophoblastic tumors. (mdpi.com)
- Recent clinical studies reported an increase in implantation and pregnancy rates among women receiving intrauterine human chorionic gonadotropin (hCG) prior to embryo transfer suggesting that, at least in some cases, female infertility is a result of inadequate secretion of hCG. (sigmaaldrich.com)
- Testing for the beta fraction of human chorionic gonadotropin is the basis for most serum and urine pregnancy tests. (thefreedictionary.com)
- Serum human chorionic gonadotropin levels throughout normal pregnancy. (biovendor.com)
- Detection of the free beta subunit of human chorionic gonadotropin (HCG) in cultures of normal and malignant trophoblast cells, pregnancy sera, and sera of patients with choriocarcinoma. (biovendor.com)
- Milwidsky A, Adoni A, Miodovnik M, Segal S, Palti Z. Human chorionic gonadotropin (beta-subunit) in the early diagnosis of ectopic pregnancy. (biovendor.com)
- Human Chorionic Gonadotropin (hCG) is a glycoprotein hormone typically detected in pregnancy tests but can also be produced by some cancerous tumors. (perkinelmer.com)
- This was a retrospective cohort study performed for 162 women to assess the associations between EMT on the human chorionic ganadotropin (hCG) trigger day and pregnancy outcomes in infertile patients undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) and autologous fresh embryo transfer (ET) in controlled ovarian stimulation (COS) cycles under an assisted reproductive technology (ART) shared-care programme between public and private institutions from January 2012 through December 2016. (springer.com)
- This gene is a member of the glycoprotein hormone beta chain family and encodes the beta 3 subunit of chorionic gonadotropin (CG). (wikipedia.org)
- Human Chorionic Gonadotropin (hCG) glycoprotein hormone, chemical structure. (sciencephoto.com)
- Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced by trophoblastic cells of the placenta beginning 10 to 12 days after conception. (acris-antibodies.com)
- Previously referred to as pregnant mare's serum gonadotropin (PMSG), the hormone is commonly used in concert with progestogen to induce ovulation in livestock prior to artificial insemination. (wikipedia.org)
- Gonadotropin from pregnant mare serum can be used to induce super-ovulation in mammals. (sigmaaldrich.com)
- Human chorionic gonadotropin (HCG) is a hormone that supports the normal development of an egg in a woman's ovary, and stimulates the release of the egg during ovulation. (cigna.com)
- NOVAREL is used to stimulate egg release (ovulation) after gonadotropin stimulation. (ferringfertility.com)
- Two experiments were performed to examine 1) the efficacy of human chorionic gonadotropin (hCG) in inducing ovulation in sows shortly after farrowing, and 2) the effect of hCG treatment on sow reproductive performance (wean-to-estrous interval) after weaning. (aasv.org)
- 3,6,7 It may be possible to induce ovulation in lactating sows immediately post-farrowing by injecting human chorionic gonadotropin (hCG). (aasv.org)
- Ovarian hyperstimulation syndrome remains a serious complication during in vitro fertilization cycles if high dose human chorionic gonadotropin (hCG) is used to trigger ovulation in high responder patients. (springer.com)
- Ovulation induction in women with secondary ovarian failure who have been pretreated with human gonadotropins. (psychiatryadvisor.com)
- Gemzell C. Induction of ovulation with human gonadotropins. (springer.com)
- With the addition of Ganirelix, Ferring continues to offer the most complete reproductive medicine portfolio available, which includes Menopur (menotropins for injection), NOVAREL ( chorionic gonadotropin for injection, USP) and Endometrin (progesterone) Vaginal Insert. (thefreedictionary.com)
- Human chorionic gonadotropin (HCG) is given as an injection under the skin or into a muscle. (cigna.com)
- Do not self-inject human chorionic gonadotropin (HCG) if you do not fully understand how to give the injection and properly dispose of used needles and syringes. (drugs.com)
- Dabrowski, Konrad "Sperm Production and Cryopreservation in Muskellunge after Carp Pituitary Extract and Human Chorionic Gonadotropin Injection," The Progressive Fish Culturist, v. 58, no. 1, 1996, pp. 32-37. (osu.edu)
- We also offer recombinant HCG, HCG purified from menopausal urine, and gonadotropin purified from pregnant mare′s serum. (sigmaaldrich.com)
- Control group (CC/hMG) will receive the 100 mg CC on days 3 to 7 of that cycle but will receive 150 mg human menopausal gonadotropin (HMG) during days of 7, 8, and 9. (knowcancer.com)
- Pulsatile GnRH or human chorionic gonadotropin/human menopausal gonadotropin as effective treatment for men with hypogonadotropic hypogonadism: a review of 42 cases. (biomedsearch.com)
- Twenty-one patients with hypothalamic disorders (11 with idiopathic hypogonadotropic hypogonadism (IHH) and 10 with Kallmann syndrome (KalS)) were treated with GnRH (group Ia) or human chorionic gonadotropin (hCG)/human menopausal gonadotropin (hMG) (group Ib), and 21 patients with hypopituitarism (group II) were treated with hCG/hMG. (biomedsearch.com)
Serum human chorionic go1
- There have been six previously reported examples of leiomyosarcomas associated with high levels of serum human chorionic gonadotropin (hCG) production, comprised of cases originating from the retroperitoneum, spermatic cord, small intestine, and uterus. (hindawi.com)
- Like any other gonadotropins , it can be extracted from the urine of pregnant women or produced from cultures of genetically modified cells using recombinant DNA technology. (wikipedia.org)
- The human chorionic gonadotropin (hCG) test is done to check for the hormone hCG in blood or urine. (uwhealth.org)
- Human chorionic gonadotropin (hCG) may be measured in a sample of blood or urine. (uwhealth.org)
- Human Chorionic Gonadotropin is produced from a sterile preparation of placental glucoprotein urine of pregnant women having a total molecular mass of 36,700 Dalton. (prospecbio.com)
- False-Negative Urine Human Chorionic Gonadotropin Testing in the Clinical Laboratory. (harvard.edu)
- A test devised and performed by an HH Beard, which was based on measuring chorionic gonadotropin in urine. (thefreedictionary.com)
- Humam chorionic gonadotropin (HCG) is either made from urine of pregnant women or hormone produced by human placenta. (worldwidehealth.com)
- Placental expression of alpha and beta subunits of human chorionic gonadotrophin in early pregnancies with Down's syndrome. (biovendor.com)
- Wikland M, Borg J, Forsberg AS, Jakobsson AH, Svalander P, Waldenstrom U. Human chorionic gonadotrophin self-administered by the subcutaneous route to induce oocyte maturation in an in-vitro fertilization and embryo transfer programme. (springer.com)
- Human chorionic gonadotropin ( hCG ) is a hormone produced by the placenta after implantation . (wikipedia.org)
- Human chorionic gonadotropin or HCG is a naturally occurring hormone that the body creates to protect and nourish the fetus, by taking the stored fat reserves and transforming them into nutrition for the placenta. (thefreedictionary.com)
- Human chorionic gonadotropin (hCG or b-hCG) is a hormone that the placenta makes when a woman is pregnant. (cancer.ca)
- The placenta secretes chorionic gonadotropin beginning just after implantation. (sigmaaldrich.com)
- Human chorionic gonadotropin (HCG), a polypeptide hormone produced by the human placenta, is composed of an alpha and a beta subunit. (rxlist.com)
- Placenta provides insight into prenatal life helpful in caring for neonate plan future care for mother/child Trophoblast attachment of blastocyst to the uterus nutrition endocrine function Trophoblast - producer of Human Chorionic Gonadotropins (HGC) 1. (scribd.com)
- ABSTRACT: The traditional pharmacological treatment of patients with late onset hypogonadism (LOH) is represented by different formulations of testosterone (T) or alternatively by the extractive human chorionic gonadotropin (HCG). (naturemedclinic.com)
Secreted by the chorion1
- gonadotropin produced and secreted by the chorion. (thefreedictionary.com)
- Novarel is (chorionic gonadotropin ) as a treatment for prepubertal cryptorchidism , a condition seen in young males where one or both testicles have failed to descend into the scrotum . (rxlist.com)
- NOVAREL should be prescribed in conjunction with gonadotropins only by physicians who are experienced with infertility treatment and have adequate monitoring facilities. (ferringfertility.com)
- NOVAREL should be taken after gonadotropin stimulation at the time and dose specified by your doctor. (ferringfertility.com)
- NOVAREL, like all gonadotropins, may produce side effects. (ferringfertility.com)
- It remains to be determined whether highly purified urinary gonadotropin preparations or recombinant LH and FSH will provide therapeutic advantages. (biomedsearch.com)
- Chorionic Gonadotropin 5,000 USP Units, Mannitol 100 mg, Dibasic Sodium Phosphate 16 mg, and Monobasic Sodium Phosphate 4 mg. (rxlist.com)
- Synergy Rx Pharmacy is voluntarily recalling all lots of Human Chorionic Gonadotropin (HCG) 5,000 units/vial and 11,000 units/vial to the retail level due to a lack of sterility assurance. (fda.gov)
- The alpha subunit is essentially identical to the alpha subunits of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as to the alpha subunit of human thyroid -stimulating hormone (TSH). (rxlist.com)
- Penny, R., Olambiwonnu, N. O., and Frasier, S. D.: Follicle stimulating hormone (FSH) and luteinizing hormone-human chorionic gonadotropin (LH-HCG) concentrations in paired maternal and cord sera. (aappublications.org)
- The alpha sub-unit is essentially identical to the alpha sub- units of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as to the alpha sub-unit of human thyroid-stimulating hormone (TSH), while the beta sub- units of these hormones differ in amino acid sequence. (creativebiomart.net)
- 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). (harvard.edu)
- Equine chorionic gonadotropin (acronym given as eCG but not to be confused with ECG) is a gonadotropic hormone produced in the chorion of pregnant mares. (wikipedia.org)
- Equine chorionic gonadotropin (eCG) is a gonadotropic hormone produced in the chorion of pregnant mares, previously known as pregnant mare's serum gonadotropin, which was found in 40 to 130 days pregnant mare serum, first reported by Cole et al . (thefreedictionary.com)
- Signaling through its receptor, human chorionic gonadotropin (HCG) maintains the corpus luteum and causes it to secrete progesterone. (sigmaaldrich.com)
- When this peptide is fused with the 81-95 amino acid fragment of chorionic gonadotropin-beta (CGbeta) subunit (hecate-CGbeta), it targets cells expressing luteinizing hormone receptor (LHR), even at very low doses, or when LHR is expressed at low level. (nih.gov)
- Plasma-membrane and soluble fractions containing human chorionic gonadotropin/lutropin receptor were prepared from bovine corpora lutea by ultracentrifugation. (portlandpress.com)
- The 'receptor' was finally purified by affinity chromatography on a column of controlled-pore glass covalently coupled to hu man chorionic gonadotropin. (portlandpress.com)
- The purified receptor from the plasma-membrane and the soluble fractions contained binding capacities of 901000 and 87000 fmol of human chorionic gonadotropin/mg of protein. (portlandpress.com)
- Immunization of rabbits with a partially purified receptor fraction generated antibodies that specifically inhibited the binding of the 125I-labelled human chorionic gonadotropin to the receptor. (portlandpress.com)
- Maternal concentrations of human chorionic gonadotropin (hCG) and risk for cerebral palsy (CP) in the child. (nih.gov)
- Macri JN, Kasturi RV, Krantz DA, Cook EJ, Moore ND, Young JA, Romero K, Larsen JW Jr. Maternal serum Down syndrome screening: free beta-protein is a more effective marker than human chorionic gonadotropin. (biovendor.com)
- It is postulated that both selective host immunosuppression by tumors and selective maternal immunosuppression by fetal tissues may be mediated by human chorionic gonadotropin. (aacrjournals.org)
- Gonadotropin, human chorionic (β-subunit protein moiety reduced) (CAS 56832-34-9) Market Research Report 2018 aims at providing comprehensive data on gonadotropin, human chorionic (β-subunit protein moiety reduced) market globally and regionally (Europe, Asia, North America, Latin America etc. (marketpublishers.com)
- Gonadotropin, human chorionic (β-subunit protein moiety reduced) (CAS 56832-34-9) Market Research Report 2018 contents were prepared and placed on the website in April, 2018. (marketpublishers.com)
- Human chorionic gonadotropin is a hor- mone, secreted by human syncytiotrophoblast cells of chorionic villi, which stimulates the secretion of androgen and progesterone. (google.com)
- The unique beta chain confers biological specificity to thyrotropin, lutropin, follitropin and gonadotropin. (acris-antibodies.com)
- The following antibody was used in this experiment: Chorionic Gonadotropin Monoclonal Antibody (FB12), Alexa Fluor 488, eBioscience™ from Thermo Fisher Scientific, catalog # 53-6508-82, RRID AB_10854569. (thermofisher.com)
- Description: This FB12 monoclonal antibody reacts with human Chorionic Gonadotropin (hCG). (thermofisher.com)
- This antibody reacts to Chorionic Gonadotropin (hCG) beta subunit. (acris-antibodies.com)
- There are currently no images for Chorionic Gonadotropin beta Chain (HCG beta) Antibody (NBP2-34416IR). (novusbio.com)
- With the use of peroxidase-labeled antibody to the β chain of human chorionic gonadotropin, sections of ten human malignant tumors were found to react with this antibody. (aacrjournals.org)
- A simple '1-step' competitive erythro-immunoassay for human chorionic gonadotropin (hCG) employing V-shaped well microtitration plates coated with monoclonal anti-beta-hCG antibody has been described. (semanticscholar.org)
- Chorionic Gonadotropin" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
- The β-subunit of hCG gonadotropin ( beta-hCG ) contains 145 amino acids, encoded by six highly homologous genes that are arranged in tandem and inverted pairs on chromosome 19q 13.3 - CGB ( 1 , 2 , 3 , 5 , 7 , 8 ). (wikipedia.org)
- However, beta human chorionic gonadotropin ([beta]-hCG) was found to be the most predictive marker (9-13). (thefreedictionary.com)
- Point-of-care and over-the-counter qualitative human chorionic gonadotropin (hCG) devices remain susceptible to false-negative results caused by excess hCG [beta] core fragment. (thefreedictionary.com)
- and trivia ("All eight of the genes for the beta-subunit of human chorionic gonadotropin are located on which of the following chromosomes? (thefreedictionary.com)
- Gaspard UJ, Reuter AM, Deville JL, Vrindts-Gevaert Y, Bagshawe KD, Franchimont P. Serum concentration of human chorionic gonadotropin and its alpha and beta subunits. (biovendor.com)
- Effects of a beta-human chorionic gonadotropin subunit immunogen administered in aqueous solution with a novel nonionic block copolymer adjuvant in patients with advanced cancer. (aacrjournals.org)
- The clinical and immunological effects of a vaccine consisting of CTP37, a synthetic peptide corresponding to the COOH-terminal peptide (CTP) of beta-human chorionic gonadotropin (beta-hCG) conjugated to diphtheria toxoid, combined with CRL 1005, a novel synthetic nonionic block copolymer adjuvant, were examined. (aacrjournals.org)
- Quality hgh wholesale online HCG Human Chorionic Gonadotropin 5000iu weight loss supplier you can trust. (ecplaza.net)
- We will try to use the novel analytical technique -Dual Polarisation Interferometry (DPI),to achieve detection the minimal amount of the human chorionic gonadotropin for early detection and strict monitor of the GTD. (clinicaltrials.gov)
- The LANCE® Ultra Human Chorionic Gonadotropin (hCG) Detection Kit is designed for detection and quantitation of hCG in buffered solution and cell culture media using a homogeneous TR-FRET (no-wash steps, no separation steps) assay. (perkinelmer.com)
- V: H. Lund, E. Paus, P. Berger, U.H. Stenman, T. Torcellini, T.G. Halvorsen, L. Reubsaet "Epitope Analysis and Detection of human chorionic gonadotropin (hCG) Variants by Monoclonal Antibodies and Mass Spectrometry" To be submitted to Tumor Biology. (uio.no)
- Immunohistochemical study of the expression of human chorionic gonadotropin-β in salivary gland tumors. (nih.gov)
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- Yields of 0.02 and 0.22mg of protein were obtained from 250 g of bovine corpora lutea, which represents a 10000- and 1000-fold increase respectively in the specific binding with 125I-labelled human chorionic gonadotropin. (portlandpress.com)
- Adenylate cyclase activity of luteinized ovaries from gonadotropin-primed immature rats was stimulated by luteinizing hormone (LH), epinephrine and prostaglandin E 1 . (aspetjournals.org)
- The tissue was positive for an intrasellar pituitary germinoma, confirmed by positive human chorionic gonadotropin (hCG) staining, C-kit, and placental alkaline phosphatase (PLAP) (Figure 2). (thefreedictionary.com)
- We investigated the effects of carp pituitary extract (CPE) and human chorionic gonadotropin (hCG) on the sperm production in muskellunge Esox masquinongy. (osu.edu)
- If you want to become pregnant in the near future, or if you are nursing a baby at the present time, you need to discuss using chorionic gonadotropin with your doctor. (sharecare.com)
- It is recommended to reconstitute the lyophilized Human Chorionic Gonadotropin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions. (prospecbio.com)
- Synergy Rx Pharmacy deeply regrets any disruption that this voluntary recall of HCG (Human Chorionic Gonadotropin) Sterile compounding services have on its customers, but notes that safety and quality are its primary concerns. (fda.gov)
- Blood samples from the present patient demonstrated very high plasma values of β-human chorion gonadotropin (β-hCG), estradiol and testosterone. (endocrine-abstracts.org)
- Human chorionic gonadotropin (HCG) and testosterone: what is the evidence? (naturemedclinic.com)
- Late-onset hypogonadism: the advantages of treatment with human chorionic gonadotropin rather than testosterone. (naturemedclinic.com)
- Any herbal, over-the-counter medications, prescription drugs, or diet products should be discussed with your doctor before using chorionic gonadotropin. (sharecare.com)
- In a clinical trial of oocyte production, a daily dose of 200 IU has been successfully used for maintaining late follicular phase as a gonadotropin-releasing hormone antagonist. (nature.com)
- 5000-10000 Units IM one day after last dose of gonadotropins. (psychiatryadvisor.com)
- To begin to address this issue experimentally, we determined the dose-response relationship between human chorionic gonadotropin (hCG) and ITT to ascertain the minimum dose needed to maintain ITT in the normal range. (washington.edu)
- These results demonstrate that relatively low dose hCG maintains ITT within the normal range in healthy men with gonadotropin suppression. (washington.edu)
- Human chorionic gonadotropin is a glycoprotein composed of 237 amino acids with a molecular mass of 36.7 kDa , approximately 14.5 αhCG and 22.2kDa βhCG. (wikipedia.org)
- If you are self-administering chorionic gonadotropin, do not use it if it has particles floating in it, if the vial is damaged in any way, or if the contents are discolored. (sharecare.com)