Chick Embryo: The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching.North CarolinaGlass: Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.South CarolinaEye: The organ of sight constituting a pair of globular organs made up of a three-layered roughly spherical structure specialized for receiving and responding to light.Microscopy: The use of instrumentation and techniques for visualizing material and details that cannot be seen by the unaided eye. It is usually done by enlarging images, transmitted by light or electron beams, with optical or magnetic lenses that magnify the entire image field. With scanning microscopy, images are generated by collecting output from the specimen in a point-by-point fashion, on a magnified scale, as it is scanned by a narrow beam of light or electrons, a laser, a conductive probe, or a topographical probe.Cytodiagnosis: Diagnosis of the type and, when feasible, the cause of a pathologic process by means of microscopic study of cells in an exudate or other form of body fluid. (Stedman, 26th ed)PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Embryo Culture Techniques: The technique of maintaining or growing mammalian EMBRYOS in vitro. This method offers an opportunity to observe EMBRYONIC DEVELOPMENT; METABOLISM; and susceptibility to TERATOGENS.BooksPublishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.MEDLINE: The premier bibliographic database of the NATIONAL LIBRARY OF MEDICINE. MEDLINE® (MEDLARS Online) is the primary subset of PUBMED and can be searched on NLM's Web site in PubMed or the NLM Gateway. MEDLINE references are indexed with MEDICAL SUBJECT HEADINGS (MeSH).Egg Shell: A hard or leathery calciferous exterior covering of an egg.Chickens: Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.Embryo, Mammalian: The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.Poultry: Domesticated birds raised for food. It typically includes CHICKENS; TURKEYS, DUCKS; GEESE; and others.Embryo, Nonmammalian: The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.Acidosis, Respiratory: Respiratory retention of carbon dioxide. It may be chronic or acute.Biology: One of the BIOLOGICAL SCIENCE DISCIPLINES concerned with the origin, structure, development, growth, function, genetics, and reproduction of animals, plants, and microorganisms.Bicarbonates: Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.Acidosis: A pathologic condition of acid accumulation or depletion of base in the body. The two main types are RESPIRATORY ACIDOSIS and metabolic acidosis, due to metabolic acid build up.Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Acid-Base Equilibrium: The balance between acids and bases in the BODY FLUIDS. The pH (HYDROGEN-ION CONCENTRATION) of the arterial BLOOD provides an index for the total body acid-base balance.Embryo Implantation: Endometrial implantation of EMBRYO, MAMMALIAN at the BLASTOCYST stage.Blastocyst: A post-MORULA preimplantation mammalian embryo that develops from a 32-cell stage into a fluid-filled hollow ball of over a hundred cells. A blastocyst has two distinctive tissues. The outer layer of trophoblasts gives rise to extra-embryonic tissues. The inner cell mass gives rise to the embryonic disc and eventual embryo proper.Medical Illustration: The field which deals with illustrative clarification of biomedical concepts, as in the use of diagrams and drawings. The illustration may be produced by hand, photography, computer, or other electronic or mechanical methods.Embryonic Development: Morphological and physiological development of EMBRYOS.Spinal Cord: A cylindrical column of tissue that lies within the vertebral canal. It is composed of WHITE MATTER and GRAY MATTER.Lumbosacral Region: Region of the back including the LUMBAR VERTEBRAE, SACRUM, and nearby structures.Motor Neurons: Neurons which activate MUSCLE CELLS.Neurons, Afferent: Neurons which conduct NERVE IMPULSES to the CENTRAL NERVOUS SYSTEM.Muscles: Contractile tissue that produces movement in animals.Afferent Pathways: Nerve structures through which impulses are conducted from a peripheral part toward a nerve center.Synapses: Specialized junctions at which a neuron communicates with a target cell. At classical synapses, a neuron's presynaptic terminal releases a chemical transmitter stored in synaptic vesicles which diffuses across a narrow synaptic cleft and activates receptors on the postsynaptic membrane of the target cell. The target may be a dendrite, cell body, or axon of another neuron, or a specialized region of a muscle or secretory cell. Neurons may also communicate via direct electrical coupling with ELECTRICAL SYNAPSES. Several other non-synaptic chemical or electric signal transmitting processes occur via extracellular mediated interactions.Chorioallantoic Membrane: A highly vascularized extra-embryonic membrane, formed by the fusion of the CHORION and the ALLANTOIS. It is mostly found in BIRDS and REPTILES. It serves as a model for studying tumor or cell biology, such as angiogenesis and TISSUE TRANSPLANTATION.Allantois: An extra-embryonic membranous sac derived from the YOLK SAC of REPTILES; BIRDS; and MAMMALS. It lies between two other extra-embryonic membranes, the AMNION and the CHORION. The allantois serves to store urinary wastes and mediate exchange of gas and nutrients for the developing embryo.Chorion: The outermost extra-embryonic membrane surrounding the developing embryo. In REPTILES and BIRDS, it adheres to the shell and allows exchange of gases between the egg and its environment. In MAMMALS, the chorion evolves into the fetal contribution of the PLACENTA.Extraembryonic Membranes: The thin layers of tissue that surround the developing embryo. There are four extra-embryonic membranes commonly found in VERTEBRATES, such as REPTILES; BIRDS; and MAMMALS. They are the YOLK SAC, the ALLANTOIS, the AMNION, and the CHORION. These membranes provide protection and means to transport nutrients and wastes.3-Mercaptopropionic Acid: An inhibitor of glutamate decarboxylase. It decreases the GAMMA-AMINOBUTYRIC ACID concentration in the brain, thereby causing convulsions.Anaplasia: Loss of structural differentiation and useful function of neoplastic cells.Germ Layers: The three primary germinal layers (ECTODERM; ENDODERM; and MESODERM) developed during GASTRULATION that provide tissues and body plan of a mature organism. They derive from two early layers, hypoblast and epiblast.Haversian System: A circular structural unit of bone tissue. It consists of a central hole, the Haversian canal through which blood vessels run, surrounded by concentric rings, called lamellae.Blastoderm: A layer of cells lining the fluid-filled cavity (blastocele) of a BLASTULA, usually developed from a fertilized insect, reptilian, or avian egg.Gastrula: The developmental stage that follows BLASTULA or BLASTOCYST. It is characterized by the morphogenetic cell movements including invagination, ingression, and involution. Gastrulation begins with the formation of the PRIMITIVE STREAK, and ends with the formation of three GERM LAYERS, the body plan of the mature organism.Vitelline Duct: The narrow tube connecting the YOLK SAC with the midgut of the EMBRYO; persistence of all or part of it in post-fetal life produces abnormalities, of which the commonest is MECKEL DIVERTICULUM.Blood Pressure: PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Regional Blood Flow: The flow of BLOOD through or around an organ or region of the body.Heart Rate: The number of times the HEART VENTRICLES contract per unit of time, usually per minute.

Studies on the response of ewes to live chlamydiae adapted to chicken embryos or tissue culture. (1/14041)

Ewes infected before gestation with chicken embryo or tissue culture adapted chlamydial strain B-577 were challenge inoculated with the homologous strain at four to 18 weeks of gestation. The ewes responsed with group specific complement fixing antibody titers of 1:8 to 1:256 by the second week after initial infection. A secondary antibody response in the surviving challenge inoculated ewes occurred at the time of lambing and reached titers of 1:32 to 1:256 by the second week after parturition. Group specific complement fixing antibodies did not appear to play a significant role in resistance to chlamydial infection. Ewes infected with the chicken embryo adapted strain B-577 excreted chlamydiae in their feces 60 days after inoculation. However, chlamydiae were not recovered from feces of ewes infected with the tissue culture adapted strain B-577. Placentas of ewes challenge inoculated by the intravenous route were consistently infected. Chlamydiae were recovered from placentas, some fetuses and lambs. In two instances when challenge inoculation was given by the intramuscular route, infection was detected only by the direct fluorescent antibody method.  (+info)

The surface ectoderm is essential for nephric duct formation in intermediate mesoderm. (2/14041)

The nephric duct is the first epithelial tubule to differentiate from intermediate mesoderm that is essential for all further urogenital development. In this study we identify the domain of intermediate mesoderm that gives rise to the nephric duct and demonstrate that the surface ectoderm is required for its differentiation. Removal of the surface ectoderm resulted in decreased levels of Sim-1 and Pax-2 mRNA expression in mesenchymal nephric duct progenitors, and caused inhibition of nephric duct formation and subsequent kidney development. The surface ectoderm expresses BMP-4 and we show that it is required for the maintenance of high-level BMP-4 expression in lateral plate mesoderm. Addition of a BMP-4-coated bead to embryos lacking the surface ectoderm restored normal levels of Sim-1 and Pax-2 mRNA expression in nephric duct progenitors, nephric duct formation and the initiation of nephrogenesis. Thus, BMP-4 signaling can substitute for the surface ectoderm in supporting nephric duct morphogenesis. Collectively, these data suggest that inductive interactions between the surface ectoderm, lateral mesoderm and intermediate mesoderm are essential for nephric duct formation and the initiation of urogenital development.  (+info)

FGF8 induces formation of an ectopic isthmic organizer and isthmocerebellar development via a repressive effect on Otx2 expression. (3/14041)

Beads containing recombinant FGF8 (FGF8-beads) were implanted in the prospective caudal diencephalon or midbrain of chick embryos at stages 9-12. This induced the neuroepithelium rostral and caudal to the FGF8-bead to form two ectopic, mirror-image midbrains. Furthermore, cells in direct contact with the bead formed an outgrowth that protruded laterally from the neural tube. Tissue within such lateral outgrowths developed proximally into isthmic nuclei and distally into a cerebellum-like structure. These morphogenetic effects were apparently due to FGF8-mediated changes in gene expression in the vicinity of the bead, including a repressive effect on Otx2 and an inductive effect on En1, Fgf8 and Wnt1 expression. The ectopic Fgf8 and Wnt1 expression domains formed nearly complete concentric rings around the FGF8-bead, with the Wnt1 ring outermost. These observations suggest that FGF8 induces the formation of a ring-like ectopic signaling center (organizer) in the lateral wall of the brain, similar to the one that normally encircles the neural tube at the isthmic constriction, which is located at the boundary between the prospective midbrain and hindbrain. This ectopic isthmic organizer apparently sends long-range patterning signals both rostrally and caudally, resulting in the development of the two ectopic midbrains. Interestingly, our data suggest that these inductive signals spread readily in a caudal direction, but are inhibited from spreading rostrally across diencephalic neuromere boundaries. These results provide insights into the mechanism by which FGF8 induces an ectopic organizer and suggest that a negative feedback loop between Fgf8 and Otx2 plays a key role in patterning the midbrain and anterior hindbrain.  (+info)

Requirement of a novel gene, Xin, in cardiac morphogenesis. (4/14041)

A novel gene, Xin, from chick (cXin) and mouse (mXin) embryonic hearts, may be required for cardiac morphogenesis and looping. Both cloned cDNAs have a single open reading frame, encoding proteins with 2,562 and 1,677 amino acids for cXin and mXin, respectively. The derived amino acid sequences share 46% similarity. The overall domain structures of the predicted cXin and mXin proteins, including proline-rich regions, 16 amino acid repeats, DNA-binding domains, SH3-binding motifs and nuclear localization signals, are highly conserved. Northern blot analyses detect a single message of 8.9 and 5.8 kilo base (kb) from both cardiac and skeletal muscle of chick and mouse, respectively. In situ hybridization reveals that the cXin gene is specifically expressed in cardiac progenitor cells of chick embryos as early as stage 8, prior to heart tube formation. cXin continues to be expressed in the myocardium of developing hearts. By stage 15, cXin expression is also detected in the myotomes of developing somites. Immunofluorescence microscopy reveals that the mXin protein is colocalized with N-cadherin and connexin-43 in the intercalated discs of adult mouse hearts. Incubation of stage 6 chick embryos with cXin antisense oligonucleotides results in abnormal cardiac morphogenesis and an alteration of cardiac looping. The myocardium of the affected hearts becomes thickened and tends to form multiple invaginations into the heart cavity. This abnormal cellular process may account in part for the abnormal looping. cXin expression can be induced by bone morphogenetic protein (BMP) in explants of anterior medial mesoendoderm from stage 6 chick embryos, a tissue that is normally non-cardiogenic. This induction occurs following the BMP-mediated induction of two cardiac-restricted transcription factors, Nkx2.5 and MEF2C. Furthermore, either MEF2C or Nkx2.5 can transactivate a luciferase reporter driven by the mXin promoter in mouse fibroblasts. These results suggest that Xin may participate in a BMP-Nkx2.5-MEF2C pathway to control cardiac morphogenesis and looping.  (+info)

Mechanisms of GDF-5 action during skeletal development. (5/14041)

Mutations in GDF-5, a member of the TGF-beta superfamily, result in the autosomal recessive syndromes brachypod (bp) in mice and Hunter-Thompson and Grebe-type chondrodysplasias in humans. These syndromes are all characterised by the shortening of the appendicular skeleton and loss or abnormal development of some joints. To investigate how GDF-5 controls skeletogenesis, we overexpressed GDF-5 during chick limb development using the retrovirus, RCASBP. This resulted in up to a 37.5% increase in length of the skeletal elements, which was predominantly due to an increase in the number of chondrocytes. By injecting virus at different stages of development, we show that GDF-5 can increase both the size of the early cartilage condensation and the later developing skeletal element. Using in vitro micromass cultures as a model system to study the early steps of chondrogenesis, we show that GDF-5 increases chondrogenesis in a dose-dependent manner. We did not detect changes in proliferation. However, cell suspension cultures showed that GDF-5 might act at these stages by increasing cell adhesion, a critical determinant of early chondrogenesis. In contrast, pulse labelling experiments of GDF-5-infected limbs showed that at later stages of skeletal development GDF-5 can increase proliferation of chondrocytes. Thus, here we show two mechanisms of how GDF-5 may control different stages of skeletogenesis. Finally, our data show that levels of GDF-5 expression/activity are important in controlling the size of skeletal elements and provides a possible explanation for the variation in the severity of skeletal defects resulting from mutations in GDF-5.  (+info)

The cytoskeletal network controls c-Jun expression and glucocorticoid receptor transcriptional activity in an antagonistic and cell-type-specific manner. (6/14041)

The physical and functional link between adhesion molecules and the cytoskeletal network suggests that the cytoskeleton might mediate the transduction of cell-to-cell contact signals, which often regulate growth and differentiation in an antagonistic manner. Depolymerization of the cytoskeleton in confluent cell cultures is reportedly sufficient to initiate DNA synthesis. Here we show that depolymerization of the cytoskeleton is also sufficient to repress differentiation-specific gene expression. Glutamine synthetase is a glia-specific differentiation marker gene whose expression in the retinal tissue is regulated by glucocorticoids and is ultimately dependent on glia-neuron cell contacts. Depolymerization of the actin or microtubule network in cells of the intact retina mimics the effects of cell separation, repressing glutamine synthetase induction by a mechanism that involves induction of c-Jun and inhibition of glucocorticoid receptor transcriptional activity. Depolymerization of the cytoskeleton activates JNK and p38 mitogen-activated protein kinase and induces c-Jun expression by a signaling pathway that depends on tyrosine kinase activity. Induction of c-Jun expression is restricted to Muller glial cells, the only cells in the tissue that express glutamine synthetase and maintain the ability to proliferate upon cell separation. Our results suggest that the cytoskeletal network might play a part in the transduction of cell contact signals to the nucleus.  (+info)

Regulation of chamber-specific gene expression in the developing heart by Irx4. (7/14041)

The vertebrate heart consists of two types of chambers, the atria and the ventricles, which differ in their contractile and electrophysiological properties. Little is known of the molecular mechanisms by which these chambers are specified during embryogenesis. Here a chicken iroquois-related homeobox gene, Irx4, was identified that has a ventricle-restricted expression pattern at all stages of heart development. Irx4 protein was shown to regulate the chamber-specific expression of myosin isoforms by activating the expression of the ventricle myosin heavy chain-1 (VMHC1) and suppressing the expression of the atrial myosin heavy chain-1 (AMHC1) in the ventricles. Thus, Irx4 may play a critical role in establishing chamber-specific gene expression in the developing heart.  (+info)

Studies on a nonpolysomal ribonucleoprotein coding for myosin heavy chains from chick embryonic muscles. (8/14041)

A messenger ribonucleoprotein (mRNP) particle containing the mRNA coding for the myosin heavy chain (MHC mRNA) has been isolated from the postpolysomal fraction of homogenates of 14-day-old chick embryonic muscles. The mRNP sediments in sucrose gradient as 120 S and has a characteristic buoyant density of 1.415 g/cm3, which corresponds to an RNA:protein ratio of 1:3.8. The RNA isolated from the 120 S particle behaved like authentic MHC mRNA purified from chick embryonic muscles with respect to electrophoretic mobility and ability to program the synthesis of myosin heavy chain in a rabbit reticulocyte lysate system as judged by multi-step co-purification of the in vitro products with chick embryonic leg muscle myosin added as carrier. The RNA obtained from the 120 S particle was as effective as purified MHC mRNA in stimulating the synthesis of the complete myosin heavy chains in rabbit reticulocyte lysate under conditions where non-muscle mRNAs had no such effect. Analysis of the protein moieties of the 120 S particle by sodium dodecyl sulfate-polyacrylamide gel electrophoresis shows the presence of seven distinct polypeptides with apparent molecular weights of 44,000, 49,000, 53,000, 81,000, 83,000, and 98,000, whereas typical ribosomal proteins are absent. These results indicate that the 120 S particles are distinct cellular entities unrelated to ribosomes or initiation complexes. The presence of muscle-specific mRNAs as cytoplasmic mRNPs suggests that these particles may be involved in translational control during myogenesis in embryonic muscles.  (+info)

*1957 in science

Tang, F. F.; Huang, Y. T.; Chang, H. L.; Wong, K. C. (1957). "Isolation of trachoma virus in chick embryo". Journal of Hygiene ... "Studies on the etiology of trachoma with special reference to isolation of the virus in chick embryo". Chinese Medical Journal ...

*Chlamydia trachomatis

Tang FF, Huang YT, Chang HL, Wong KC (1957). "Isolation of trachoma virus in chick embryo". J Hyg Epidemiol Microbiol Immunol. ... "Studies on the etiology of trachoma with special reference to isolation of the virus in chick embryo". Chin Med J. 75 (6): 429- ...

*List of Chinese discoveries

Studies on the etiology of trachoma with special reference to isolation of the virus in chick embryo. Chin Med J. 1957 Jun;75(6 ... Isolation of trachoma virus in chick embryo. J Hyg Epidemiol Microbiol Immunol. 1957;1(2):109-20 Ji Qiang; Ji Shu-an (1996). " ...

*Duke University Hospital

Beard JW, Finkelstein H, Sealy WC, Wyckoff RW (May 1938). "IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO ...

*Chorioallantoic membrane

Ribatti D (2008). "Chick embryo chorioallantoic membrane as a useful tool to study angiogenesis". Int Rev Cell Mol Biol. 270: ... Cimpean AM, Ribatti D, Raica M (2008). "The chick embryo chorioallantoic membrane as a model to study tumor metastasis". ... Fried B, Stableford LT (1991). "Cultivation of helminths in chick embryos". Adv. Parasitol. 30: 108-65. doi:10.1016/s0065-308x( ... As a result, the chorioallantoic membrane allows exchange of gases, such as oxygen, to developing embryos. During embryonic ...

*Zona limitans intrathalamica

Vieira C, Garda AL, Shimamura K, Martinez S (2005). "Thalamic development induced by Shh in the chick embryo". Developmental ... "Fate map of the diencephalon and the zona limitans at 10-somites stage in chick embryos". Developmental Biology. 268 (2): 514- ... The top (roof plate, on the dorsal side of the embryo) and bottom (floor plate, on the ventral side) play a crucial role in ... In the explant experiments, cells in the region that will become the ZLI, the prethalamus, and the thalamus in the chick were ...

*Gail R. Martin

Crossley P.H.; Martinez S.; Martin G.R. (1996). "Midbrain development induced by FGF* in the chick embryo". Nature. 380: 66-68 ... She is known for her pioneering work on the isolation of pluripotent stem cells from normal embryos, for which she coined the ... This work laid the groundwork for the future isolation of pluripotent stem cells from normal mouse and human embryos. In 1976, ... Martin G.R. (1981). "Isolation of a pluripotent cell line from early mouse embryos cultured in medium conditioned by ...

*Frank Macfarlane Burnet

His own research was on the canarypox virus, which he used in developing a chick embryo assay for the isolation and ... Simonsen had shown in 1957 that when a chick embryo was inoculated intravenously with adult-fowl blood, a graft-versus-host ... Burnet, F. M.; Stone, J. D.; Edney, M. (1950). "The failure of antibody production in the chick embryo". Australian Journal of ... its embryogenesis through complex interactions between immune cells and all the other cells and molecules within an embryo. ...

*Primitive streak

The marginal zone of a chick embryo contains cells that will contribute to the streak. This region has a defined anterior-to- ... This ability to generate a streak from the pre-streak stage chick embryo indicates that there must be a mechanism to ensure ... Finally, BMP signaling is also important for regulating the process of streak formation in the chick embryo. The site of streak ... Cells overlaying Koller's Sickle in the posterior end of the chick embryo move towards the midline, meet and change direction ...

*Gastrulation

Chuai M, Weijer CJ (2008). "The mechanisms underlying primitive streak formation in the chick embryo". Curr Top Dev Biol. 81: ... Before gastrulation, the embryo is a continuous epithelial sheet of cells; by the end of gastrulation, the embryo has begun ... The proximal-distal axis is formed when the cells of the embryo form the "egg cylinder," which consists of the extraembryonic ... Each layer gives rise to specific tissues and organs in the developing embryo. The ectoderm gives rise to epidermis, the ...

*Procollagen C-endopeptidase

"Type I procollagen carboxyl-terminal proteinase from chick embryo tendons. Purification and characterization". J. Biol. Chem. ...

*Floor plate

Distinct modes of floor plate induction in the chick embryo. 19 June 2003. Development 130, 4809-4821" "Guan KL and Rao Y. ... Induction of the floor plate during embryogenesis of vertebrate embryos has been studied extensively in chick and zebrafish and ... Through chick - quail hybrid experiments as well as genetic interaction experiments in zebrafish, it appears that notochord and ... In vertebrates, this choice is mediated by the floor plate, and enables the embryo to develop successful left and right body ...

*Flora de Pablo

Insulin is present in chicken eggs and early chick embryos. Receptor genes for insulin and insulin- like growth factor I are ... differentially expressed in Xenopus oocyte and embryos The developing CNS: a scenario for the action of proinsulin, insulin and ...

*Somite

In the chick embryo somites are formed every 90 minutes. In the mouse the interval is variable. For some species, the number of ... The paraxial mesoderm is initially called the "segmental plate" in the chick embryo or the "unsegmented mesoderm" in other ... A somite is a division of the body of an animal or embryo. Somites are bilaterally paired blocks of paraxial mesoderm that form ... The number of somites is species dependent and independent of embryo size (for example, if modified via surgery or genetic ...

*Developmental biology

Hassan Rashidi V.S. (2009). "The chick embryo: hatching a model for contemporary biomedical research". BioEssays. 31: 459-465. ... Free living embryos do not grow in mass as they have no external food supply. But embryos fed by a placenta or extraembryonic ... Good embryo supply. Well developed genetics. Nematode: Caenorhabditis elegans. Good embryo supply. Well developed genetics. Low ... Growth in embryos is mostly autonomous. For each territory of cells the growth rate is controlled by the combination of genes ...

*Chicken as biological research model

Dagg, C. P.; Karnofsky, D. A.; Toolan, H. W.; Roddy, J. (1954). "Serial passage of human tumors in chick embryo: growth ... Easty, G. C.; Easty, D. M.; Tchao, R. (1969). "The growth of heterologous tumour cells in chick embryos". European Journal of ... Woodruff, A. M.; Goodpasture, E. W. (1931). "The Susceptibility of the Chorio-Allantoic Membrane of Chick Embryos to Infection ... The ultimate fate of mammalian tissue implanted in the chick embryo". Journal of Experimental Medicine. 19 (2): 181-186. doi: ...

*Margaret Sabine

Doherty, Peter C (8 January 2008). "Burnet, chick embryos, viruses, clones and quantitative biology". Immunology and Cell ... "Interference between inactive and active influenza viruses in the chick embryo. IV. The early stages of virus multiplication ...

*Koller's sickle

Cells in marginal zones of the embryo, like the PMZ, are key to development and cell fate determination in chick embryos. Avian ... "Modeling Gastrulation in the Chick Embryo: Formation of the Primitive Streak". PLoS ONE. 5 (5): e10571. doi:10.1371/journal. ... "Induction of primitive streak and Hensen's node by the posterior marginal zone in the early chick embryo". Development. 125 (17 ... "Expression of the homeobox gene Hex during early stages of chick embryo development". Mechanisms of Development. 80 (1): 107-9 ...

*Chordin

Vasiev, B; Balter, A; Chaplain, M; Glazier, JA; Weijer, CJ (2010). "Modeling gastrulation in the chick embryo: formation of the ... The polypeptide is 941 amino acids long and 120 kDa large and it dorsalizes the developing embryo by binding ventralizing TGFβ ...

*Vascular remodelling in the embryo

Subsequently, Chapman in 1918 discovered that removing a chick embryo's heart disrupted the remodelling process, but the ... October, 2003). Flow regulates arterial-venous differentiation in the chick embryo yolk sac. Development 131: 361 - 375. doi: ... Inside the embryo, the dorsal aorta forms and eventually connect the heart to the capillary plexus of the yolk sac. This forms ... The study of vascular or remodelling in the embryo is widely believed to have been pioneered by Thoma in 1893 when he observed ...

*Viktor Hamburger

Hamburger, V.; Wenger, E.; Oppenheim, R. (1966). "Motility in the chick embryo in the absence of sensory input". Journal of ... In the 1960s, Hamburger did embryological work that established that chick movements in embryo were spontaneous patterns, a ... Navis, Adam R. (2012-05-08). "Viktor Hamburger". Embryo Project Encyclopedia. Tempe, Arizona: Arizona State University, School ...

*Perlecan

A thorough study of perlecan expression during chick embryo development has shown that perlecan is present at the morula stage ... Soulintzi N, Zagris N (2007). "Spatial and temporal expression of perlecan in the early chick embryo". Cells Tissues Organs ( ... In the rat embryo, perlecan expression has been shown to increase in vascular smooth muscle cells (VSMCs) post e19 in fetal ... Morpholinos were used to block translation of the perlecan mRNA in zebrafish embryos, as part of an investigation into perlecan ...

*Wnt signaling pathway

"Modeling Gastrulation in the Chick Embryo: Formation of the Primitive Streak". PLoS ONE. 5 (5): e10571. Bibcode:2010PLoSO... ... In early embryo development, the formation of the primary body axes is a crucial step in establishing the organism's overall ... Part C, Embryo Today. 90 (4): 243-56. doi:10.1002/bdrc.20195. PMID 21181886. van Amerongen R, Nusse R (Oct 2009). "Towards an ... Gordon, NK, Gordon R The organelle of differentiation in embryos: the cell state splitter Theor Biol Med Model (2016) 13: 11. ...

*Hemangioblast

Murray PDF (1932). "The development in vitro of the blood of early chick embryo". Proceedings of the Royal Society. 11: 497-521 ... In the mouse embryo, the emergence of blood islands in the yolk sac at embryonic day 7 marks the onset of hematopoiesis. From ... close spatial and temporal proximity of the emergence of blood vessels and red blood cells within the yolk sac in chick embryos ... It has been shown that these pre-endothelial/pre-hematopoietic cells in the embryo arise out of a phenotype CD34 population. It ...

*Somitogenesis

Mills, C. L.; Bellairs, R. (1989). "Mitosis and cell death in the tail of the chick embryo". Anatomy and embryology. 180 (3): ... When the notochord is ablated during somitogenesis in the chick embryo, the proper number of somites forms, but the ... Somite number is unaffected by changes in the size of the embryo through experimental procedure. Because all developing embryos ... "An experimental and morphological analysis of the tail bud mesenchyme of the chick embryo". Anatomy and embryology. 174 (2): ...

*Zebra finch

The chicks will hatch according to the laying time of each egg. It is common to have one or two eggs remaining unhatched as the ... Embryo survival (that is, hatching success of fertile eggs) was significantly lower for sib-sib mating pairs than for unrelated ... Zebra finches also use an acoustic signal to communicate to embryos. It has been shown that the finches will give the ... This signal alone changes growth of the embryos and the subsequent behaviour and growth of the nestlings. Calling behaviour is ...
In the preprimitive streak chick embryo, the search for a region capable of inducing the organizer, equivalent to the Nieuwkoop Center of the amphibian embryo, has focused on Kollers sickle, the hypoblast and the posterior marginal zone. However, no clear evidence for induction of an organizer without contribution from the inducing tissue has been provided for any of these structures. We have used DiI/DiO labeling to establish the fate of midline cells in and around Kollers sickle in the normal embryo. In the epiblast, the boundary between cells that contribute to the streak and those that do not lies at the posterior edge of Kollers sickle, except at stage X when it lies slightly more posteriorly in the epiblast. Hypoblast and endoblast (a second lower layer formed under the streak) have distinct origins in the lower layer, and goosecoid expression distinguishes between them. We then used anterior halves of chick prestreak embryos as recipients for grafts of quail posterior marginal zone; ...
1. The accumulation of [1-(14)C]glycine and the uptake, accumulation, incorporation (into protein, lipid, glycogen) and oxidation of l-[1-(14)C]leucine in 5-day-old chick embryo hearts were investigated in vitro, and the effects of insulin, puromycin and 4-methyl-2-oxopentanoic acid on these processes were studied. 2. With glycine, the ratio of concentration of the labelled amino acid in the cell water to that in medium markedly exceeded unity. Insulin significantly increased this ratio. Puromycin did not prevent the insulin effect. 3. With leucine, the concentration ratio of the labelled amino acid between intracellular and extracellular water approached unity in the absence of puromycin and was doubled by its presence. In neither case did insulin substantially alter this ratio. The addition of 4-methyl-2-oxopentanoic acid had no effect in the absence of insulin, but produced a significant increase of the concentration ratio in the presence of the hormone. 4. Leucine uptake was increased slightly by
We investigated the roles of sodium-calcium exchange, sarcoplasmic reticulum, and mitochondria in Cai homeostasis in cultured chick ventricular cells. Specifically, the influence of low sodium medium on contractile state, calcium fluxes, and cytosolic free [Ca] [( Ca]i) was examined. [Ca]i was measured using fura-2. Mean [Ca]i in control medium was 126 +/- 14 nM. Exposure of cells to sodium-free or sodium- and calcium-free medium (choline-substituted) resulted in contracture development, which returned toward the baseline level over 2-3 minutes. The Nao-free contracture was associated with a tenfold increase in [Ca]i (1,280 +/- 110 nM) followed by a gradual decrease to a level fourfold above control [Ca]i (460 +/- 58 nM). Nao- and Cao-free contracture was associated with a fivefold increase in [Ca]i (540 +/- 52 nM) followed by a rapid decrease to below 80 nM. Sodium-free medium failed to produce an increase in [Ca]i or contracture in cells preexposed to calcium-free medium, although caffeine, ...
MHM is a chicken Z chromosome-linked locus that is methylated and transcriptionally silent in male cells, but is hypomethylated and transcribed into a long non-coding RNA in female cells. MHM has been implicated in both localised dosage compensation and sex determination in the chicken embryo, but direct evidence is lacking. We investigated the potential role of MHM in chicken embryonic development, using expression analysis and retroviral-mediated mis-expression. At embryonic stages, MHM is only expressed in females. Northern blotting showed that both sense and antisense strands of the MHM locus are transcribed, with the sense strand being more abundant. Whole mount in situ hybridization confirmed that the sense RNA is present in developing female embryos, notably in gonads, limbs, heart, branchial arch and brain. Within these cells, the MHM RNA is localized to the nucleus. The antisense transcript is lowly expressed and has a cytoplasmic localization in cells. Mis-expression of MHM sense and antisense
Acetylcholine, acetyl-β-methylcholine and carbamylcholine inhibited sinoatrial pacemaker activity in atria isolated from chick embryos on the 6th, 12th and 18th incubation days. Cardioinhibition persisted throughout the 5-minute exposure to cholinergic agonists in sinoatrial preparations from the 12th and l8th incubation days whereas automaticity recovered completely within 1 to 2 minutes in preparations from the 6th incubation day. Neither hydrolysis by acetylcholinesterase nor release of catecholamines from cardiac stores accounted adequately for the brevity of pacemaker inhibition by choline esters on the 6th incubation day. Evidence suggested that desensitization, most prominently observed with carbamylcholine, restricted the duration of cholinergic inhibition of the pacemaker on the 6th incubation day. Although automaticity recovered completely within 2 minutes after initial application of acetylcholine and carbamylcholine, pacemaker cells were not inhibited by a second application until ...
TY - JOUR. T1 - Molecular analysis of regulative events in the developing chick limb. AU - Mahony, Chris. AU - Vargesson, Neil. PY - 2013/7/1. Y1 - 2013/7/1. N2 - The developing chick limb has the remarkable ability to regulate for the loss of large amounts of mesenchyme and maintain a normal limb pattern in early (Hamburger and Hamilton Stage 19; E3) limbs. How the limb can regulate for tissue loss and why this ability is lost as development proceeds (after Hamburger and Hamilton Stage 21; E3.5) is unclear. We have investigated the origins of cells involved in regulative processes and, for the first time, the molecular changes occurring, and find striking differences between developmental time points just 0.5 days apart. We demonstrate that subtle changes in cell dispersal and cell proliferation occur in HH St21 limbs but not in HH St19 limbs and also demonstrate that there is no net replacement of removed tissue at either HH St21 or St19. We further show that changes in the ...
Synonyms for head process in Free Thesaurus. Antonyms for head process. 352 synonyms for head: skull, crown, pate, bean, nut, loaf, cranium, conk, noggin, noddle, mind, reasoning, understanding, thought, sense, brain, brains.... What are synonyms for head process?
Paranemin was initially found to copurify with the intermediate filament (IF) proteins vimentin and desmin from embryonic chick skeletal muscle and was described as an IF-associated protein (IFAP). We have purified paranemin from embryonic chick skeletal muscle, prepared antibodies, and demonstrated that they label at the Z-lines of both adult avian and porcine cardiac and skeletal muscle myofibrils. We determined the cDNA sequence of paranemin by immunoscreening a λgt22A cDNA library from embryonic chick skeletal muscle. Northern blot analysis revealed a single transcript of 5.3 kilobases, which is much smaller than predicted from the size of paranemin (280 kDa) by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The derived amino acid sequence of paranemin (1,606 residues; 178,161 kDa) contains the conserved IF rod domain (308 amino acids), which has highest homology to the rod domains of nestin and tanabin. Thus, paranemin is an IF protein rather than an IFAP. Sequence analysis ...
Developmental changes in regulation of embryonic chick heart gap junctions.: Embryonic chick myocyte pairs were isolated from ventricular tissue of 4-day, 14-da
Duodena from 20-day-old chick embryos can be maintained in large scale organ culture on specially designed stainless-steel grids in contact with serum-free medium for 48 h with excellent preservation of mucosal structure at both the light and electron microscope levels. Although mitotic rate was subnormal, several other factors attest to the essential viability of the cultured intestine: L-leucine incorporation into protein, as well as the synthesis of a specific vitamin D3-induced calcium-binding protein (CaBP), increased over a 48-h culture period, and the electropotential gradient across the intestine was maintained throughout the culture period as was a concentration gradient for calcium. The tissue responded to vitamin D3 in the medium by synthesizing the calcium-binding protein within 6 h and by exhibiting enhanced 45Ca uptake within 12-24 h. Concentrations of vitamin D3, or its 25-hydroxylated derivative, higher than necessary for CaBP induction, also increased the activity of alkaline ...
Hi, Im looking for a commercial source of primary chicken embryo fibroblast (CEF) culture. Any leads? Thanks, Vladimir Yamshchikov ...
In a series of tissue cultures of fragments taken from different parts of young chick embryos, at various stages, it was found that differentiation frequently occurred, the characteristic cells of highly specialised tissues appearing in cultures in which they could not possibly have been present at explantation. The most striking differentiations were the development of red blood corpuscles, capillary vessels, nerve cells with axons and of rhythmically contracting cardiac muscle. This paper describes a simple method by which may be obtained regularly and quickly the development of very large numbers of red cells, and an account is given of the histology of the cultures. It is intended to be introductory to a physiological study, now in progress, of the conditions of hæmatopoiesis Literature. Erythropoiesis in vitro has been reported by several authors, but it has not been thoroughly investigated and, with the exceptions of the works of Slonimski (1930, a, 1931) and Shipley (1915-16), the ...
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Simultaneous left and right atrial surface electrograms were obtained from the right and left atria of 30 chick embryos. These were divided into 3 equal groups that were studied at 15 to 16, 10 to 11, and 5 to 7 days of incubation. The embryos were removed from the shell with their circulation intact and temperature maintained constant. In an early stage of development (5 to 6 days), the left atrium and its appendage were larger than the right, and left preceded right atrial depolarization. At and after 7 days of incubation, the right atrium and its appendage were larger than the left, and right preceded left atrial depolarization. The intervals for interatrial conduction and for atrio-ventricular conduction were about the same at all stages of development. Since the length and width of the heart at 15 to 16 days of incubation were about 3 times those of a heart at 5 to 7 days of incubation, it is proposed that the higher the stage of development of the chick embryo the greater must be the ...
A method for the determination of red cell mass, which employs the use of radioisotopically-labeled erythrocytes, in the embryonated hen egg is described and results of total blood volume, plasma volume, red cell mass and red cell concentration determinations during the period from 9 to 18 days of incubation presented. Considerations of the values obtained in terms of absolute quantities and relative to embryonic mass are discussed. It is suggested that expansion of the red cell mass and somatic growth are portions of a common process and may be subject to a complex of similar regulatory factors in the normal chick embryo.. ...
Fig. 1. Anatomy and gene expression in dissected Xenopus guts. A: Dorsal view of a gut from a 3-day-old embryo. B: Ventral view of a gut from a 3-day-old embryo. C: Gut from a 5-day-old embryo. D: Gut from a 7-day-old embryo. E: Stomach region from a 7-day-old gut. F: Boundary between small and large intestine of 7-day-old gut. G: Activity of endogenous alkaline phosphatase in 3-day gut. H: Activity of endogenous alkaline phosphatase in 7-day gut. Inset shows a section through stained gut (arrow highlights alkaline phosphatase staining (blue) in epithelium, arrowhead highlights mesodermal tissue counterstained green). I: Activity of endogenous alkaline phosphatase in stomach region of 7-day gut (1 and 2 show the first and second expression boundaries). J: Ventral view of IFABP expression in 3-day gut. K: Dorsal view of IFABP expression in 3-day gut. L: IFABP expression in 5-day gut. M: IFABP expression in 7-day gut. N: Endodermin expression in 3-day gut. O: Endodermin expression in 5-day gut. P: ...
Classic TEM. First description of the endoplasmic reticulum. Whole mount of unfixed, dried chick embryo fibroblast. Embryonic chick cells were grown ...
Kawakami, Y.; Capdevila, J.; Buscher, D.; Itoh, T.; Rodriguez Esteban, C.; Ng, J.; Izpisua Belmonte, J.C.rlos, 2001: WNT signals control FGF-dependent limb initiation and AER induction in the chick embryo
BACKGROUND: Chicken embryos are widely used as a model for studies of obesity; however, no detailed information is available about the dynamic changes of proteins during the regulation of adipose biology and metabolism. Thus, the present study used an isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomic approach to identify the changes in protein abundance at different stages of chicken embryonic development. RESULTS: In this study, the abundances of 293 hepatic proteins in 19-day old of chicken embryos compared with 14-day old and 160 hepatic proteins at hatching compared with 19-day old embryos were significantly changed ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
See all results for Memorial Day Chicken Papaya No Flour Recipes. Find more recipes at Foodily.com - the largest recipe search site - and see the ones your friends like.
Since Ms. Cormier was willing to house the chicks on her farm after the class finished with them, I decided that bringing back, and even expanding, this work with live chicks seemed like a really good fit for my vision for the course," said Bailey.. Unfortunately, there have been incidents of chicks passing away. After a power outage in Gelb while the eggs were still incubating, the humidity dropped very low in the incubator. The chicks were already partially hatched during this time, causing the exposed membrane to dry up. According to students interviewed by The Phillipian, two chicks did not hatch as a result of the outage.. The first 36 hours after hatching are a critical time for the chicks - after this period, the birds switch from innate imprinting to associative learning and will not be able to imprint on their "mother." According to students, another factor that facilitates the imprinting process is being rough and showing tough love to the chicks.. Macey Mannion 19 said, "If we spent ...
Hello, everybody! Does anyone have any experience with RNase Protection Assay? I have been doing it for a few months now, using a non-radioactive method for detection (biotin) and I have problems with transferring from the PAGE to a nylon membrane (low efficiency of transfer). My other problem is that after I stain the urea/PAGE with EtBr I see the same band pattern with my control probe (beta-actin) and with my probe (in this case for titin). Its absolutely the same picture-with actin, with titin and with both probes. What I am looking for is differential expression of titin at different stages of primary chick embryo muscle culture and if there is no way of comparing titins expression with that of actin (housekeeping gene), I am in a bad shape. I would greatly appreciate any help! Thanks a lot in advance! Vesselina Ivanova Graduate student in the Department of Biochemistry and Biophysics Iowa State University -- Vesselina Ivanova vivanova at iastate.edu ...
Youre a smart chick wearing Chick with Brains Nightshirt Gifts for Her Let everyone know youre a smart chick wearing this Chick with Brains Nightshirt sporting a geeky little chick embellished on a comfy 100% cotton women Chick with Brains Nightshirt nightshirt. White; one size fits most. Makes an
McKay, Liz. (2007, Fall). Assessment of blood vessel area growth in the developing chick embryo under chronic exposure to 0.5 mL of caffeine. Wheaton Journal of Developmental Biology Research, 2. Retrieved from http://hdl.handle.net/11040/ ...
Origin of lungs, liver, and pancreas in the chick. The mesoderm is shaded; the endoderm dark. lg., One of the lungs; St., stomach; l., liver; p., pancreas." -Thomson, 1916. ...
Hi all. Thanks for all the help last weekend with my little Ameraucana--shes now doing fine! I noticed today that 3 of my chicks have a lump about...
in which she provides a sarcastic quiz with a series of multiple-choice questions as to the books author, cover, main character and themes in order to highlight chick lit as formulaic (Ferriss and Young, 2006: 1).. On the one hand, it is perhaps unsurprising that chick lit has garnered a fair degree of criticism. Along with external clearly gendered cover art and the internal preoccupation with the search for a man, the very term chick lit, as Imelda Whelehan (2005: 171) points out, is simultaneously "interesting and provocative", as the term brings into play both negative and positive connotations, and raises issues of gender and genre (Gormley, forthcoming). As Jane Mills (1989: 47) notes, the term chick, when applied to humans, first entered the English language circa 1400 to mean a child or young girl. In the 1500s, chick became, "a term of endearment applied to a female sweetheart"; yet by the early 1900s the term had "degenerated" to denote, "a young promiscuous woman" (ibid.). In the ...
One was named Spotty because he had black spots on him. I loved listening to the sound of the chicks chirping. They are so cute!" "First the chicks were a little germ spot in an egg and then the spot got bigger and bigger and when it got so crammed up in there the chick popped out. It takes 21 days for them to hatch. How a chick gets formed is a hen meets a rooster." " The parts of the egg are called the air pocket, the yolk, chilaza, and the embryo." By Maisie ...
We have made ten attempts to cultivate vaccine virus in tissue extracts prepared according to the method described by Eagles and Kordi (4). Renal, testicular, and chick embryo extracts were employed with a dermal strain of vaccine virus and with the Levaditi strain of neuro-vaccine virus. In no instance were we able to show that the virus multiplied in the extract media. Both of these strains of virus, however, multiplied in media containing bits of minced viable tissue. Furthermore, treatment of rabbit testicular tissue and chick embryo tissue in the manner described by Eagles and Kordi for the preparation of the extracts leaves some cells not only alive but capable of proliferation. Although the results of our work are not in accord with those obtained by Eagles and Kordi, we offer no explanation for the discrepancy. Nevertheless, one cannot examine the results of our work recorded in the six tables without recognizing the fact that in the types of media used the presence of viable cells ...
E hyaloid vessels. doi:10.1371/journal.pone.0053970.gused immunohistochemistry of melanocyte and melanoma cell specific markers HMB45 and Melan-A. Since in the early chick embryo neural crest cells have not yet differentiated, they do not express markers of the…. ...
I have just cleared out eggs from an old coop. I thought they were old eggs, but when I threw them out I found that one of them had an embryo in it.
Despite the relatively large size, the whole mounts (item# 311676) are cleared and stained. Serial sections (item# 311688) show the beginning of most of the structures of the adult eye.
A transverse section through an embryo chick (26 hours). Labels: a, epiblast; b, mesoblast; c, hypoblast; d, central portion of mesoblast, which is here fused with epiblast; e, primitive groove; f, dorsal ridge.. ...
Ive got a big emergency with one of my chicks. When it hatched, it hadnt absorbed the yolk fully and it still had it attached. The chick was very...
The Department of Biological Regulation is comprised of approximately 160 people organized in 13 research groups. We are located in the Candiotty building, which is equipped with all the facilities required for running an excellent research. Our research is concentrated on the regulation of processes responsible for the concerted action of cells, tissues, and organs. A diversity of methodologies and experimental approaches are used in order to tackle these issues. These include biochemical, molecular, and physiological methods, organ and tissue cultures, whole animal studies in mice, flies, zebra fish, and chick embryos.. ...
A Dutch start-up has said it is close to developing a commercially viable solution to sexing chicks just nine days into their incubation. In-Ovo says it ha
Designed to prevent baby chicks from drowning, yet still large enough for adult birds to drink from. Includes translucent plastic 1 qt. jar. Desired Date of Arrival can be entered …
Designed to prevent baby chicks from drowning, yet still large enough for adult birds to drink from. Will fit standard mason jar.
|Those little pro ana sweethearts often use pictures of fat girls to cause what they call reverse thinspo. I thought that I Fat Bastard would post up some pictures of emaciated skinny chicks and fat girls to provide some fatsporation and reverse fatspo for our million of female readers.Id bone here but that is only…
Fascinating ebony chick with round black butt and shaved wet pussy has some fun with a European guy and gives her needy twat for hardcore interracial shagging
Definition: A variant of group of so-called fusion anomalies, in which both kidneys are fused together in early embryonic life.. ...
Six Western women share their unique story, experience and give advice on dating Japanese men. Cultural differences can cause problems in the relationship. Do online dating websites work? Its time for a frank discussion! What I learned from interviews was that online dating is equally painful for men and for
Im pondering new features for this site - for one thing, I promise to get a better picture up there soon! I would like to have a more interactive format, perhaps a forum for debates, seeing as new developments in science, health and technology do not come without controversy ...
hello everyone! I am new to ivf and to this forum. I just wanted to introduce myself. I am already in my 2ww after ivf. 3dpt. Have all the symptoms and issues Ive been reading about online. We had 5 3 day embryos transferred 3 great ones and 2 mediocre ones. Im 35 yrs old and my husband is 40. I had my tubes tied 13 yrs ago after my daughter was born. I am remarried and my husband has no children of his own. This is our one and only attemt at ivf. Wish me luck ...
I can see why he regrets dumping this chick. She is hot as fuck. At least she still lets him pound her pussy every once in a while.
Bicephalia is one of the scarcest malformations reported in birds and needs to be fully investigated in chick embryos. Among 1500 fertilised eggs used to examine the primordial germ cells in 2-day and 5.5-day chick embryos Gallus gallus domesticus, bicephalia was found and the condition of the heads, the heart and other parts of the body was fully described. Each twin had its own head; hearts were not completely separated from each other and the rest of the bodies were externally unique. This investigation urges others including poultry farms to share their data on a bigger scale. It may also encourage the monitoring of abnormalities randomly seen during early chick embryogenesis and consideration of environmental factors when poultry farms are faced with high percentages of unsuccessful hatching. The report can shed some light on developmental processes and may also help to clarify why bicephalia is not more common. ...
A comparative study of feather morphogenesis and the development of feather pattern in normal and talpid3 embryos has been carried out.. The development of talpid3 CAM grafts shows that the effect of the gene is autonomous in the skin.. The most striking effect of the gene upon feather morphogenesis is the failure of normal feather germ condensations to appear within the dermis. This is reflected in the abnormal distribution of alkaline phosphatase through the dermis.. Dermal cells within and between condensations are not orientated in the mutant as they are in normal embryos, probably owing to the same defect in cell behaviour which causes condensation failure in talpid3 precartilage mesenchyme.. The role of dermal cell orientation and movement in generating the overall feather pattern is examined in both normal and talpid3 embryos.. ...
Jenn-Fa Liou, Yu-Min Shue, Hsiao-Lung Liu, Chein Tai, Lih-Ren Chen, and Jen-Wen Shiau. The objective of this study was to evaluate the capacity of gonadal migration and characterization for chicken primordial germ cells (PGCs) after long-term in vitro culture. Chicken PGCs collected from the primitive gonads of 5.5-day-old White Leghorn chicken embryos were plated together with their own stroma cells as co-culture. The cultured PGCs began to from colonies 7-10 days after plating. The PGC-derived colonies maintained in culture up to 280 days were positively stained with antibodies specific to SSEA-1, SSEA-4, integrin α6 and integrin β1, and also strongly expressed periodic acid Schiff reaction. Their capacities of migration and colonizing in the primary gonadal ridge were further demonstrated by transferring to stage 14-15 (3 days old) recipient embryos. These results suggested that chicken PGCs maintained in long-term culture retains their capacity to express pluripotent markers and to ...
Introduction: The membrane-bound metalloproteinase aminopeptidase N (APN) is involved in several different cellular processes associated with the malignant phenotype. Furthermore APN has also been reported to have a functional role in tumor angiogenesis and there appear to be a strong correlation between the expression of APN and the invasive capacity of a numerous tumor cell types. The melphalan-derived prodrug melphalan-flufenamide (previously designated J1) can be activated by APN suggesting possible anti-angiogenic properties.. Experimental: A series of experiments were performed to evaluate the effects of melphalan-flufenamide on angiogenesis; cytotoxicity on bovine endothelial cells, the TCS Cellworks AngioKit model with human endothelial cells co-cultured with fibroblasts, the chicken embryo chorioallantoic membrane assay, and finally in vivo in mice using the Cultrex DIVAA angio-reactor assay.. Results: Melphalan-flufenamide displayed high cytotoxic activity against endothelial cells, ...
The mechanisms underlying the initiation of the heart beat are still poorly understood. Here we show that early embryonic heart cells display small, but stable, [Ca2+]i oscillations that can evoke contractions. Our biophysical and pharmacological evidence suggests that such oscillations can activate small depolarizations of the Em via the NCX. Such depolarizations, when reaching threshold potential, give rise to APs that synchronize the activity of individual heart cells. The [Ca2+]i oscillations are not restricted to cardiac subtypes but can be detected in pacemaker-, atrial-, and ventricular-like early embryonic cardiomyocytes. Thus, although the early embryonic heart consists of individual [Ca2+]i oscillators, APs appear to synchronize contractions and the coordinated pumping of blood.. The finding that [Ca2+]i oscillations drive spontaneous contractions without APs in early embryonic heart cells is in agreement with our observations in ES cell−derived cardiomyocytes, where persistence of ...
We have used carbocyanine dyes (DiI and DiO) to generate fate maps for the epiblast layer of the chick embryo between stage X and the early primitive streak stage (stages 2-3). The overall distribution of presumptive cell types in these maps is similar to that described for other laboratory species …
Chick embryo fibroblasts infected with Rous sarcoma virus in vitro are rendered malignant for such cells produce typical Rous sarcomas when injected into susceptible chicks since the tumors produced predominantly retain the sex chromatin patterns of the donor cells when such cells are injected into a recipient of the opposite sex. However, examination of the sex chromatin of cells at the periphery of the tumor shows presence of recipient cells though the bulk of the tumor is clearly of donor cell origin. Such tumors grow and cause death of the recipient. Injection of RSV induces tumors of the sex of the recipient as also does the injection of transformed cells rendered incapable of multiplication by x-rays. Following their injection into susceptible chicks, the cells transformed in vitro by virus behave in the same manner as tumor cells obtained from tumors induced by virus in vivo and cultivated in the same conditions in vitro.. When such tumors induced by transformed cells are serially ...
In the gastrulating chick embryo, the mesoderm cells arise from the epiblast layer by ingression through the linear accumulation of cells called the primitive streak. The mesoderm cells emerge from the streak with a fibroblastic morphology and proceed to move away from the mid-line of the embryo using, as a substratum, the basement membrane of the overlying epiblast and the extracellular matrix. We have investigated the roles of fibronectin and laminin as putative substrata for mesoderm cells using complementary in vivo and in vitro methods. We have microinjected agents into the tissue space adjacent to the primitive streak of living embryos and, after further incubation, we have examined the embryos for perturbation of the mesoderm tissue. These agents were: cell-binding regions from fibronectin (RGDS) and laminin (YIGSR), antibodies to these glycoproteins, and a Fab fragment of the antibody to fibronectin. We find that RGDS, antibody to fibronectin, and the Fab fragment cause a decrease in ...
Lactic acid production by chick embryo fibroblasts occurs in the absence of exogenous glucose. Fifteen to 50-fold less lactic acid is formed in the absence of glucose than in its presence. Nevertheless, serum and pH stimulation enhances this residual lactic acid production to the same r...read more ...
The chick embryo has prevailed as one of the major models to study developmental biology, cell biology and regeneration. From all the anatomical features of the chick embryo, the eye is one of the most studied. In the chick embryo, the eye develops between 26 and 33 h after incubation (Stages 8-9, Hamburger and Hamilton, 1951). It originates from the posterior region of the forebrain, called the diencephalon. However, the vertebrate eye includes tissues from different origins including surface ectoderm (lens and cornea), anterior neural plate (retina, iris, ciliary body and retinal pigmented epithelium) and neural crest/head mesoderm (stroma of the iris and of the ciliary body as well as choroid, sclera and part of the cornea). After gastrulation, a single eye field originates from the anterior neural plate and is characterized by the expression of eye field transcriptional factors (EFTFs) that orchestrate the program for eye development. Later in development, the eye field separates in two and the
The developing avian ciliary ganglion has been a particularly amenable system for the identification, isolation, and characterization of putative target-derived molecules that mediate retrograde interactions. To date a number of biochemically distinct activities that regulate neuronal survival, transmitter phenotype, and chemosensitivity of ciliary ganglion neurons have been identified. Of these, only two survival-promoting molecules have been purified to homogeneity: ciliary neurotrophic factor and a related molecule, growth-promoting activity. A somatostatin-inducing activity found in cultured choroid cells is very likely to be chick activin A. Other molecules that regulate acetylcholine and acetylcholine receptor expression comigrate on a gel filtration column at a molecular weight of 50-60 kD, but they have yet to be isolated. Once molecules that mimic retrograde influences are identified, a number of criteria must be met before their physiological significance can be established. These ...
The innervation of dorsoventrally reversed chick wings: evidence that motor axons do not actively seek out their appropriate targets.: In normal chick embryos t
Fibroblast growth factors (FGFs) play an essential role in development and patterning of the vertebrate embryo. Despite extensive literature documenting the diverse roles of FGF signalling during craniofacial development, comparatively little is known about the specific downstream effectors through which FGFs influence gene expression. A previous study in our laboratory reported exogenous FGF elicited differential chondrogenic responses in frontonasal and mandibular mesenchyme (Bobick et al., 2007). Pea3 transcription factors are crucial components of the downstream effector pathway through which FGFs influence gene expression (Raible and Brand, 2001). Therefore, the purpose of my research was to examine whether differences in pea3, erm, and er81 gene expression profiles underlie the distinct responses of the frontonasal and mandibular mesenchyme cells to FGF. The present study demonstrates that FGF2 treatment differentially affects chondrogenesis in micromass cultures of frontonasal and ...
1. Two populations of morphologically intact mitochondria were isolated from embryonic, neonatal and adult chick liver by isopycnic centrifugation. 2. The protein/phospholipid ratio of the total mitochondrial fraction, the low-density mitochondria (B2, d1.176) and the high-density mitochondria (B3, d1.206) did not differ significantly. 3. During development there is a marked increase in the B2 fraction in relation to the B3 fraction. 4. Cytochrome oxidase and malate dehydrogenase activities as well as respiratory control increased during the embryonic development of the chick, though their rates of increase were not correlated. 5. In the three different embryonic stages that were investigated, as well as in the neonatal and adult chick, the protein/lipid as well as the protein/phospholipid ratio stayed constant and showed no progressive increase, as had been previously reported. 6. It was shown that forces greater than 18400gav. for 2h have to be used before chick liver mitochondria reach ...
The fusion of myoblasts into multinucleated myotubes is a crucial step of muscle growth during development and of muscle repair in the adult. While multiple genes were shown to play a role in this process, a vertebrate model where novel candidates can be tested and analyzed at high throughput and relative ease has been lacking. Here, we show that the early chicken embryo is a fast and robust model in which functional testing of muscle fusion candidate genes can be performed. We have used known modulators of muscle fusion, Rac1 and Cdc42, along with the in vivo electroporation of integrated, inducible vectors, to show that the chicken embryo is a suitable model in which their function can be tested and quantified ...
Full nutritional breakdown of the calories in Busy day chicken based on the calories and nutrition in each ingredient, including Chicken Breast (cooked), no skin, roasted, White Rice, short grain, cooked, Cream of Chicken Soup, Cream of Mushroom Soup and the other ingredients in this recipe.
We have investigated the locations of the GABA(A) receptor α1-, β2-, γ2- and γ4-subunit mRNAs, in chick retina, by in situ hybridization. The α1-, β2- and γ2-subunit genes were chosen for study because they are co-expressed throughout the mammalian and avian brain. The γ4-polypeptide gene was selected because it is highly expressed, in the chick brain, in those regions that are involved in the processing of visual information. We find that the α1-, β2- and γ2-subunit mRNAs are present in both the inner nuclear layer (INL) and the ganglion cell layer (GCL); however, the distributions of the three transcripts in these two layers show significant differences. In contrast, the γ4-polypeptide mRNA is only detected in the inner portion of the INL. These results strongly suggest the existence of multiple GABA(A) receptor subtypes in chick retina.
Ba-Omar, T. and Downie, J. (2006) Microscopic study of cell death in the adrenal glands of mouse and chick embryos. Tissue and Cell, 38, pp. 243-250. (doi:10.1016/j.tice.2006.05.001) ...
The study comprised anatomical description of skeleton development in chick embryo Gallud
domesticud which includes the appearance of ossification center during the embryological stages ...
... and important genes in PGC from White Leghorn chicken Su Jiun Deng and Jen-Wen Shiau. The purpose of this study is to investigate the developmental and pluripotentcy related genes expression profile of PGC obtained from day 5.5 and day 8.5 chick embryos after incubation. PGC was obtained by micromanipulation and the total RNA was purified by commercial kit. The cDNA was synthesized using RT-PCR with total RNA as a template. The genes expression was detected by real-time PCR using various kinds of primers and the results showed that all the genes detected were expression both in day 5.5 and day 8.5 chick embryos except the Blimpl. Some genes that selected from the chicken germ cell database were also showed expression both in day 5.5 and day 8.5 chick embryos. Cvh is an important gene and preferentially expressed in whole period of germ cell differentiation. We constructured the siRNA of Cvh and transfect to PGCs. After 24 hours of transfection, the ...
Collective cell migration is often considered in the context of just one population of cells on the move, but can often actually involve several cell types, raising obvious questions about how such mass movement is coordinated. By studying the interaction between neural crest (NC) cells and placodal cells in developing Xenopus laevis and zebrafish embryos, Eric Theveneau et al. have identified a chase-and-run behaviour that ensures successful neural crest migration and placode segregation, and gained insight into the underlying molecular mechanisms.. The playground antics of placode cells and NC cells could be seen both in vivo and in vitro. By labelling both cell types in embryos, the researchers saw that placode cells moved randomly until NC cells arrived on the scene, at which point they ran away, leaving gaps in the placode region. In co-culture studies, placodal cells were seen to encourage NC cells - by secreting the chemoattractant Sdf1 - to chase them, but once the NC cells got ...
A monoclonal antibody, 8D9, has been obtained that binds to axons in the chick nervous system. Biochemical and immunological experiments indicate that the 8D9 antigen is related to the mouse L1 cell-adhesion molecule. The results of immunohistochemical experiments using monoclonal antibody 8D9 to study the development of the chick visual system are consistent with the 8D9 antigen functioning in axon fasciculation.. ...
Pang, Kar Lai and Parnall, Matthew and Loughna, Siobhan (2017) Effect of altered haemodynamics on the developing mitral valve in chick embryonic heart. Journal of Molecular and Cellular Cardiology, 108 . pp. 114-126. ISSN 1095-8584 England, Jennifer and Pang, Kar Lai and Parnall, Matthew and Haig, Maria Isabel and Loughna, Siobhan (2016) Cardiac troponin T is necessary for normal development in the embryonic chick heart. Journal of Anatomy . ISSN 1469-7580 ...
Large scale, confinement growing of poultry allows for a lower price point. Just as small family farms find it hard to compete with industrialized agriculture, small poultry farmers have similar challenges when it comes to competing with large scale corporate hatcheries. Confining hundreds of breeding birds indoors limits the space, and resources, needed to raise them. Our farms require open space, strong fencing, secure housing and on-going pasture management efforts. Shipping chicks nation-wide, even with the high loss numbers of chicks that die in transit, is profitable when your animals number in the tens of thousands. Our farms house less than 100 birds, with each individual carefully selected for breeding based on traits we evaluate, observe and track. Because of the publics interest in purchasing female chicks for egg production, hatcheries normally kill male chicks at hatch, often by methods that many consider inhumane. Our farms believe all chicks should live to fulfill their purpose ...
The chicks are quite wet and weak when they first hatch (more like flop) out of the egg. They nap a bit, dry off, fluff up, and begin pecking at the other eggs within an hour or so. Do not be in a rush to take the chicks out of the incubator, their presence will encourage the unhatched chicks to hatch. They should be taken out and put into a brooder within 24 hours of hatching. Usually, all the chicks that are going to hatch have hatched, and you can put the whole clutch in your brooder ...
All petrel chicks are independent of their parents as soon as they leave the breeding colony, meaning that translocated chicks do not require any artificial feeding once they complete their feather development and fly out to sea. We used the wing-length of each chick on Takapourewa to estimate how close it was from being ready to fly out to sea, to see if it fell within our selection criteria. The chicks selected for translocation were all estimated to be 2-10 days from fledging (the term used for a chick taking its first flight). Petrel chicks fly out to sea as soon as they get airborne for the first time, and do not return to land until they reach breeding age.. ...
Shipping can be a stressful time for chicks. We pack each of our boxes of shipped chicks with the utmost of care. They have a cozy reed mat to dig their little talons into along with a 72 hour heat pack for comfort and gro gel to act as nourishment and hydration for the journey.. Even with all of this it is good to provide the chicks with an extra boost when you receive them after their journey. This pack of chick boost will make one gallons worth of water which will support a flock of 12 for one month. Simply mix 1/2 teaspoon of the powder into a quart jar and refresh the water once they have drunk it down. The mix of probiotics, electrolytes, vitamins and minerals will help them develop healthy gut flora and fauna so they are more resistant too diseases as they age.. ...
Read "Primary Vagal Projection to the Contralateral Non-NTS Region in the Embryonic Chick Brainstem Revealed by Optical Recording, The Journal of Membrane Biology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
In the event that an egg is placed small end up, the chances are greater that an embryo will situate its head in the small end of the egg. When an embryo is not situated correctly, reduced hatchability and lower chick quality are common problems that may occur. Sometimes a chick embryo is unable to locate the air cell and accidentally pips the small end of the shell, which causes the chick to hatch too early. A recent study conducted by Bauer, Tullett, and Wilson found a significant difference between eggs set large end as opposed to small end up. When a commercial broiler strain was used, the eggs set small end up had a high percentage of disoriented embryos. Only 38.6% of the embryos situated themselves correctly and pipped the large end of the egg, while the remainder of the embryos became disoriented: 39.2% pipped the small end of the egg and 22.2% pipped at the equator. In addition, the researchers found that chick quality is lessened, and hatchability is reduced by approximately 17% when ...
What an adventurous and exciting month we have had here at Friends Fellowship Community. Our good friend, Pat Foreman, generously brought incubated chick eggs to our community. Pat taught us about the awe-inspiring journey from egg to chick during a wonderful educational presentation. It covered the entire process of finding fertile eggs (even without a rooster), selecting the most likely eggs to hatch, and embryo development that happens inside an egg. After teaching us about their life cycle, she left them at our disposal (crazy lady!!). The last few weeks, we have tracked their life cycle through incubation, named them, and predicted their hatch date. Finally on a cold, snowy Monday the Life Enhancement staff started hearing little peeps from the eggs; by Tuesday morning we had chicks! These adorable little feathery guys have brought so much life to our community this past month. We have all become egg-sperts thanks to the experience. What animal would you like to see visit next? Stop by the ...
Do You Think Disabled Chicks Are Hot? Join friendly people sharing true stories in the I Think Disabled Chicks Are Hot group. Find forums, advice and chat with groups who share this life experience. Smokin hot crip chicks...
Iodo-hormones in the serum of chick-embryos and post-hatching chickens as influenced by incubation-temperature - relationship with the hatching process and ...
Early embryos are uniformly soft and compliant, with correspondingly low levels of collagenous ECM (Majkut et al., 2013). Nuclei of embryonic stem cells are likewise very soft, with low levels of lamin A/C (Pajerowski et al., 2007; Eckersley-Maslin et al., 2013). However, from an initial embryonic disk stiffness of ∼0.3 kPa (which is 100-fold softer than a gummy bear), the embryonic chick heart stiffens every day by ∼0.3 kPa/day, largely because of accumulation of collagenous ECM made by cardiac fibroblasts (Majkut et al., 2013). The brain, on the other hand, remains throughout life soft and as low in collagen as the embryo. Surprisingly, Lmna-knockout mice survive the tissue stiffening of embryogenesis and generate all tissues but fail to grow after birth (small skeleton) and die within weeks because of chronic injury and dystrophy in cardiac and skeletal muscle, among other stiff tissues (Sullivan et al., 1999; Kubben et al., 2011; Jahn et al., 2012). The lack of a strict need for a robust ...
Transplanted hind limb-buds of chick embryos were treated with salicylic acid. Treatment with this chemical caused reduction in length, weight and volume of the developing limb-buds. A side effect observed was an apparent loosening of the basal membrane and examined with regard to length, weight, and volume. The above observations are discussed in relation to the different hypotheses of the ectoderm-mesoderm interaction. The physiological role of the basal membrane, as well as the possible implications of the basal findings to the question of limb development and morphogenesis, are also discussed.
Balk, Samuel D. et al "Thymidine and Hypoxanthine Requirements for the Proliferation of Normal and Rous Sarcoma Virus-infected Chicken Fibroblasts in the Presence of Methotrexate." Cancer Research 39.5 (1979): 1854-1856. Web. 23 Feb. 2018. ...
Hmmmm, I like this coz I like dang-gui....But sometimes I just wonder, whats the difference btwn this black chick and the normal chick and also the kampung chick? Arent they all chickens? If I rear them all the same way, would it make a differece in their nutrients? I read that the dang-gui has female-hormones in it, thats why it can help ladies to regulate their hormones. But youll need quite a big amount of dang-gui to leave an effect on the guys. So I think once or twice in a month shouldnt be a problem ...
A 1-day old chick has the potential to become a broiler chicken, a layer or breeder. Given this versatility, the quality of day old chicks (DOCs) matters immensely to poultry businesses. This article addresses key development stages, focusing on most frequent disturbances in the field and relevant solutions.
Hatching chick emoji wooden keychain. This adorable baby chick is just hatching and entering the world for the first time. He is still sitting in the bottom of his egg shell, but hes spreading his little wings ready to head on out! This little fella is made of 1/4 (6mm) thick birch ply, which has
The solubility of PPVE in Milli Q reagent water was determined by a shake flask method according to OPPTS 830.7840. Triplicate samples were prepared and incubated for 5, 6, and 7 days at ambient temperature of ~ 22.3 °C. At each of the incubation days, the samples were centrifuged, and allowed to equilibrate for at least 24 hours. The samples were centrifuged again and three aliquots of supernatant were collected from each sample and analyzed using purge and trap gas chromatography/mass spectrometry (GC/MS). PPVE had an overall average water solubility of 1.8 mg/L, and overall RSD% of 7%. This is a guideline study (OPPTS 830.7840) conducted under GLP compliance without deviation. Therefore, it is considered reliable without restrictions and a key study. ...
Treatment of chicks piling is done by providing sugar juice, liquid sugar, glyserol, and salbutamol etc in broiler and chicks or chicken.
I have 6 Light Sussex chicks in the brooder. They are about a week old. This strain can be feather sexed and this method says at 3 days old, they are all pullets. From a show strain, they are that lovely correct Light Sussex yellow. On several of the chicks, where the hackle will eventually be, the necks are a darker shade of gold. My question: Is this something I want to see or something to avoid. My birds do not have superhackles ...
Hey everyone. Just checking in here to see if anyone has an information on baby chick calling. I have one chick who calls loudly and frequently. Are there any return calls I can whistle to help comfort ...
Full nutritional breakdown of the calories in Avocado chick pea salad based on the calories and nutrition in each ingredient, including Chick Peas, Avocados, California (Haas), Crisco Pure Vegetable Oil, Brown Sugar, Presidents Choice Prepared Dijon Mustard and the other ingredients in this recipe.
Use Manna Pro Chick Starter as the sole ration for chicks from 0 to 8 weeks of age. For improved feed efficiency, development of active immunity, fortified with vitamins and minerals.
Chick.1 ,- ChickWeight[ChickWeight$Chick == 1, ] SSfpl( Chick.1$Time, 13, 368, 14, 6 ) # response only A ,- 13; B ,- 368; xmid ,- 14; scal ,- 6 SSfpl( Chick.1$Time, A, B, xmid, scal ) # response and gradient getInitial(weight ~ SSfpl(Time, A, B, xmid, scal), data = Chick.1) ## Initial values are in fact the converged values fm1 ,- nls(weight ~ SSfpl(Time, A, B, xmid, scal), data = Chick.1) summary(fm1 ...
Luv Nest Chick Mix Blend is the perfect addition to a growing flock! Chicks benefit by rubbing against herbs, just as they naturally do in the wild. A gentle blend of Luv Nest herbs plus peppermint leaf, meadowsweet, fennel and other herbs can help provide a healthy, aromatic environment for them.M
Calories in 3 Fat Chicks Frozen Butterfinger Pie. Find nutrition facts for 3 Fat Chicks Frozen Butterfinger Pie and over 2,000,000 other foods in MyFitnessPal.coms food database.
This Cool Chick Mug is printed on a Mug and designed by graFisch. Available in many sizes and colours. Buy your own Mug with a Cool Chick design at Spreadshirt, your custom t-shirt printing platform!
UPDATE! THIS INFORMATION IS FROM 25 MAY 2015. READ THE LATEST peregrine news HERE.. MAY 25, 2015. Its now obvious to us humans that Dorothy and E2s chick is not normal. At 15 days old it should be walking around the nestbox and standing upright like a little Buddha. Instead it falls suddenly on its back, kicks and jerks and cannot right itself. It remains on its back for hours and Dorothy feeds it in this position. This is not normal.. It appears the chick has a birth defect which we humans could not see immediately. Dorothy and E2 are very experienced parents who know what healthy chicks look like (Dorothy has raised 42 young), and their extra attentive behavior from the start indicates to me they knew this chick has issues.. At age 16 Dorothy is old for a peregrine and, just like older human mothers, her eggs are more likely to result in birth defects. This is not new for Dorothy. Two years ago one of her two chicks hatched with seizures and died within a week. Unfortunate as it is, health ...
... is available online with fast delivery from VioVet, the trusted supplier of veterinary medication, foods and animal care products.
Hatching your own eggs is an interesting experience that many of us are tempted to partake in or may have already done. For 21 days, we wait and watch excitedly for baby chicks to appear, eagerly...
We review genetic diseases with identified molecular bases that include abnormal, reduced (hypoplasia), or absent (aplasia) patellae as a significant aspect of the phenotype. The known causal genes can be broadly organized according to three major developmental and cellular processes, although some genes may act in more than one of these: limb specification and pattern formation; DNA replication and chromatin structure; bone development and differentiation. There are also several genes whose phenotypes in mice indicate relevance to patellar development, for which human equivalent syndromes have not been reported. Developmental studies in mouse and chick embryos, as well as patellar involvement in human diseases with decreased mobility, document the additional importance of local environmental factors in patellar ontogenesis. Patellar anomalies found in humans can be an important clue to a clinical genetic diagnosis, and a better knowledge of the genetics of patellar anomalies will improve our ...
Scientists say increasing limit from 14 days will give greater insight into congenital conditions Scientists will make a controversial call this week to extend the current 14-day limit for carrying out experiments on human embryos to 28 days. The move follows recent breakthroughs that have allowed researchers to double the time embryos can be kept…
TY - JOUR. T1 - Mechanisms of thin filament assembly in embryonic chick cardiac myocytes. T2 - Tropomodulin requires tropomyosin for assembly. AU - Gregorio, Carol. AU - Fowler, V. M.. PY - 1995. Y1 - 1995. N2 - Tropomodulin is a pointed end capping protein for tropomyosin-coated actin filaments that is hypothesized to play a role in regulating the precise lengths of striated muscle thin filaments (Fowler, V. M., M. A. Sussman, P. G. Miller, B. E. Flucher, and M. P. Daniels. 1993. J. Cell Biol. 120:411- 420; Weber, A., C. C. Pennise, G. G. Babcock, and V. M. Fowler. 1994. J. Cell Biol. 127:1627-1635). To gain insight into the mechanisms of thin filament assembly and the role of tropomodulin therein, we have characterized the temporal appearance, biosynthesis and mechanisms of assembly of tropomodulin onto the pointed ends of thin filaments during the formation of striated myofibrils in primary embryonic chick cardiomyocyte cultures. Our results demonstrate that tropomodulin is not assembled ...
TY - JOUR. T1 - Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is associated to a down-regulation in the expression of endogenous endostatin. AU - Mangieri, Domenica. AU - Nico, Beatrice. AU - Benagiano, Vincenzo. AU - De Giorgis, Michela. AU - Vacca, Angelo. AU - Ribatti, Domenico. PY - 2008/6. Y1 - 2008/6. N2 - We have attempted a fine characterization of the angiogenic response induced by multiple myeloma endothelial cells (MMEC) by using the chick embryo chorioallantoic membrane (CAM) assay and by reverse transcriptase-polymerase chain reaction (RT-PCR). Results showed that in the CAM assay MMEC induced an angiogenic response comparable to that of a well-known angiogenic cytokine, namely fibroblast growth factor-2 (FGF-2), while RT-PCR demonstrated that the expression of endostatin mRNA detected in MM treated CAM was significantly lower respect to control CAM. These data suggest that angiogenic switch in MM may involve ...
Acetylcholinesterase Inhibitors Promote Angiogenesis in Chick Chorioallantoic Membrane and Inhibit Apoptosis of Endothelial Cells. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
The chorioallantoic membrane - also called the chorioallantois or abbreviated to CAM - is a vascular membrane found in eggs of some amniotes, such as birds and reptiles. It is formed by the fusion of the mesodermal layers of two developmental structures: the allantois and the chorion.[1] In mammals, this structure forms the placenta. Three different layers compose the chorioallantoic membrane; these are called the chorionic epithelium, the mesenchyme and the allantoic epithelium. Blood capillaries and sinuses are found between epithelial cells of the chorionic layer, allowing close contact (within 0.2 μm) with air found in pores of the shell membrane of the egg.[2] As a result, the chorioallantoic membrane allows exchange of gases, such as oxygen, to developing embryos.[1] During embryonic development of birds, the chorioallantoic membrane also plays an essential role in bone formation by transporting calcium into the embryo from the eggshell.[1] Chorioallantoic membranes from developing ...
Cultured chick embryo hepatocytes were iron-loaded with ferric nitrilotriacetate. Iron-loading was confirmed by both quantitative cellular iron determinations and ultrastructural studies. With iron-loading, lipid peroxidation, as detected by malonaldehyde released into the medium, occurred at a linear rate for 12h, after which time the rate of malonaldehyde production decreased. No cell toxicity, as detected by lactate dehydrogenase release, was noted. The amount of malonaldehyde recovered in the medium after 18h of exposure to iron represented 24-33% of the total malonaldehyde that could be produced by incubating lysed cells with iron and ascorbate. Cellular glutathione was not affected by iron-stimulated lipid peroxidation, but was increased by allylisopropylacetamide. Although iron-loading by itself had no effect on activity of 5-aminolaevulinate synthase, the first and rate-limiting step in haem synthesis, iron-loading in the presence of the porphyrogenic drug allylisopropylacetamide ...
Angiogenesis is closely related to the growth, invasion and metastasis of tumors, also considered as the key target of anticancer therapy. Scutellaria barbata D. Don (S. barbata), a traditional Chinese medicine, is being used to treat various diseases, including cancer. However, the antitumor molecular mechanism of S. barbata was still unclear. This study aimed to investigate the inhibitory effects of the total flavones in S. barbata (TF-SB) on angiogenesis. Human umbilical vein endothelial cells (HUVECs) were treated with various concentrations of TF-SB. Cell viability was examined using the MTT assay. The scratch assay was used to detect the migration of HUVECs after treatment with TF-SB. The ability of HUVECs to form network structures in vitro was demonstrated using the tube formation assay. The chick embryo chorioallantoic membrane assay was performed to detect the in vivo anti-angiogenic effect. The expression of VEGF was measured by the enzyme-linked immunosorbent. Results showed that TF-SB
A virulent avian infectious bronchitis virus (IBV) was isolated from 30-day-old broiler chickens that exhibited respiratory symptoms, nephropathologic lesions, and a high proportion of deaths in the Peoples Republic of China during 2005. The strain, designated YN, was genetically and pathologically characterized. Phylogenetic analysis showed that YN and most of the previously characterized IBV isolates found in China were phylogenetically classified into 2 main genetic clusters. The YN isolate caused severe lesions and resulted in deaths of 65% in experimental infections of 30-day-old specific-pathogen-free chickens. Tracheal and severe kidney lesions developed in all infected birds, confirming the ability of YN strain to induce both respiratory and renal disease. IBV antigens were detected by immunohistochemical analysis in the trachea, lung, kidney, and bursa, consistent with histopathologic observations, virus isolation, and reverse transcription PCR detection. We showed that YN IBV exhibits severe
Neural crest cells are a group of multipotent stem cell that migrate to various locations and give rise to many diverse cell types in the vertebrate body. The ENS arises from "vagal" neural crest stem cells that originate from the post-otic dorsal neural tube. Vagal neural crest cells are multipotent and can give rise to the outflow tract of the heart, enteric ganglia, sympathetic ganglia, as well as pigment cells of the skin. To become enteric ganglia during development, vagal neural crest migrate ventrally from the neural tube and enter the primitive foregut tissue. They then migrate along the rostrocaudal extent of the gut in response to microenvironmental signaling cues to until they eventually reach the hindgut. These enteric neural crest cells (ENC) eventually give rise to a diverse array of neurons and glia that form the enteric ganglia ...

Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is...Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is...

T1 - Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is ... Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is ... Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is ... Angiogenic activity of multiple myeloma endothelial cells in vivo in the chick embryo chorioallantoic membrane assay is ...
more infohttps://moh-it.pure.elsevier.com/en/publications/angiogenic-activity-of-multiple-myeloma-endothelial-cells-in-vivo

Transformation of chick embryo fibroblast... & related info | MendeleyTransformation of chick embryo fibroblast... & related info | Mendeley

A strain of reticuloendotheliosis virus-infected chicken embryo fibroblasts has been isolated and found to be transformed by ... A strain of reticuloendotheliosis virus-infected chicken embryo fibroblasts has been isolated and found to be transformed by ...
more infohttps://www.mendeley.com/papers/transformation-chick-embryo-fibroblasts-reticuloendotheliosis-virus/

Wnt expression patterns in chick embryo nervous system.  - PubMed - NCBIWnt expression patterns in chick embryo nervous system. - PubMed - NCBI

At least six different Wnt genes are expressed in the developing CNS of the chick embryo. The domains of expression overlap ... The timing and spatial distribution of Wnt-gene expression in the chick embryo further support the general hypothesis that Wnt ... Wnt expression patterns in chick embryo nervous system.. Hollyday M1, McMahon JA, McMahon AP. ... Several lines of evidence suggest that Wnt genes play a critical role in regulating development of the vertebrate embryo. To ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/7577679?dopt=Abstract

rabies vaccine (purified chick embryo cell)rabies vaccine (purified chick embryo cell)

Rabies purified chick embryo cell vaccine is used to protect people who have been bitten by animals (post-exposure) or ... What is rabies vaccine (purified chick embryo cell)?. Rabies is a serious disease caused by a virus. Rabies occurs mainly in ...
more infohttps://www.adventisthealthcare.com/health/library/topic/?id=d05786a1

Neural induction in whole chick embryo cultures by FGF.  - PubMed - NCBINeural induction in whole chick embryo cultures by FGF. - PubMed - NCBI

To evaluate the role of FGFs in neural induction and patterning of the nervous system in chick embryos, we have targeted the ... Neural induction in whole chick embryo cultures by FGF.. Alvarez IS1, Araujo M, Nieto MA. ... The whole embryo culture system allows to directly assessing the neural inducing activity on nonneural ectodermal cells. Our ... ectopic expression of these factors by applying FGF-soaked beads to extended primitive streak chick embryos developing in ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/9676191?dopt=Abstract

Chick embryos in Shell-Less Culture | BackYard ChickensChick embryos in Shell-Less Culture | BackYard Chickens

As part of a school experiment in conjunction with my 4H group I am performing several shell less embryo cultures.This method ... Chick embryos in Shell-Less Culture Discussion in Incubating & Hatching Eggs started by Cochin378, Jan 8, 2012. ... I am performing several shell less embryo cultures.This method allows for the continuous observation of living chick embryos ... I also think I know why his embryos died.. Thank you though..I will have a closer look. ...
more infohttps://www.backyardchickens.com/threads/chick-embryos-in-shell-less-culture.617919/

RabAvert (purified chick embryo cell) Uses, Side Effects & Warnings - Drugs.comRabAvert (purified chick embryo cell) Uses, Side Effects & Warnings - Drugs.com

... purified chick embryo cell) patient information - includes RabAvert (purified chick embryo cell) description, dosage and ... RabAvert (purified chick embryo cell). Generic Name: rabies vaccine (purified chick embryo cell) (RAY beez vax EEN (PYUR if ... Rabies purified chick embryo cell vaccine is used to protect people who have been bitten by animals (post-exposure) or ...
more infohttps://www.drugs.com/mtm/rabavert-purified-chick-embryo-cell.html

Altered hemodynamics in chick embryos after extraembryonic venous obstruction.Altered hemodynamics in chick embryos after extraembryonic venous obstruction.

... a chick model was developed recently in which a spectrum of conotruncal anomalies, in combination with abnormal semilunar ... Chick Embryo. Disease Models, Animal. Heart / embryology*. Heart Defects, Congenital / physiopathology*. Hemodynamics. Time ... In chick embryos of stage 24 and stage 34 control (n = 8; n = 21) and with venous clip (n = 11; n = 18), we simultaneously ... Physiologically, only a decrease in peak acceleration was found in these embryos (p , 0.05). At stage 34, a spectrum of ...
more infohttp://www.biomedsearch.com/nih/Altered-hemodynamics-in-chick-embryos/10423809.html

chick embryo chondrocytes Cells | Thermo Fisher Scientific - USchick embryo chondrocytes Cells | Thermo Fisher Scientific - US

Maintaining healthy cells is the key to experimental success and reproducible research results. To give you confidence in the health of your cells every step of the way, weve highlighted the technologies and products within cell biology that are critical to maintaining optimal cell health. No matter how you are using your cells, you can count on these products to help keep them healthy.. ...
more infohttp://www.thermofisher.com/us/en/home/technical-resources/cell-lines/c/cell-lines-detail-188.html

Rabies vaccine, purified chick embryo cell Side Effects in Detail - Drugs.comRabies vaccine, purified chick embryo cell Side Effects in Detail - Drugs.com

... purified chick embryo cell. Includes common and rare side effects information for consumers and healthcare professionals. ... Home › Conditions › Rabies Prophylaxis › Rabies vaccine, purified chick embryo cell › Side Effects ... Rabies vaccine, purified chick embryo cell Rating. No Reviews - Be the first! ... Applies to rabies vaccine, purified chick embryo cell: intramuscular powder for injection ...
more infohttps://www.drugs.com/sfx/rabies-vaccine-purified-chick-embryo-cell-side-effects.html

Chick embryos provide valuable genetic data for understanding human development | EurekAlert! Science NewsChick embryos provide valuable genetic data for understanding human development | EurekAlert! Science News

Chick embryos provide valuable genetic data for understanding human development. Kumamoto University ... data for human embryos or for murine embryos representing early developmental stages. ... Top panels show embryos in the first day of embryonic development (21 days in total), equivalent to... view more ... Early developmental research on human embryos is impossible due to ethical considerations, and is technically difficult to ...
more infohttps://www.eurekalert.org/pub_releases/2017-12/ku-cep120117.php

rabies vaccine (purified chick embryo cell)
	
	
	
	

		 | UW Health | Madison, WIrabies vaccine (purified chick embryo cell) | UW Health | Madison, WI

rabies vaccine (purified chick embryo cell). Skip to the navigation Pronunciation: RAY beez vax EEN (PYUR if eyed CHIK EM bree ... Rabies purified chick embryo cell vaccine is used to protect people who have been bitten by animals (post-exposure) or ... What is rabies vaccine (purified chick embryo cell)?. Rabies is a serious disease caused by a virus. Rabies occurs mainly in ...
more infohttps://www.uwhealth.org/health/topic/multum/rabavert/d05786a1.html

Mechanism of asymmetric ovarian development in chick embryos | DevelopmentMechanism of asymmetric ovarian development in chick embryos | Development

Manipulation of chick embryos. Manipulation of chick embryos of both sexes was performed as described previously (Yoshioka et ... were implanted into embryos of both sexes as described in Figs 2 and 3. An untreated embryo is shown in A. The embryos were ... The sex of chick embryos was determined by the presence or absence of the W chromosome. To detect the W chromosome, the W- ... Hamburger, V. and Hamilton, H. L. (1951). A series of normal stages in the development of the chick embryo. J. Morphol. 88,49 - ...
more infohttps://dev.biologists.org/content/135/4/677?ijkey=27da2264d1d9de1a4734c76151d1c1979ffb648d&keytype2=tf_ipsecsha

Antigenic variation of the Avian Myeloblastosis Virus obtained from chick embryo fibroblasts | SpringerLinkAntigenic variation of the Avian Myeloblastosis Virus obtained from chick embryo fibroblasts | SpringerLink

Chick Embryo Antigenic Variation Avian Myeloblastosis Virus Chick Embryo Fibroblast This work was done while the author was at ... Antigenic variation of the Avian Myeloblastosis Virus obtained from chick embryo fibroblasts. ...
more infohttps://link.springer.com/article/10.1007/BF01946182

Experimental heart-block in the chick embryo.Experimental heart-block in the chick embryo.

... код для вставки. код для вставки на сайт или в блог. Ширина: (. aвто. ). ... Between 37 and 120 hours of incubation chick embryos with membranes intact were floated off the yolk in a saline bath on to a ... LITERATURE CITED Boucek, R. J., W. P. Murphy and G. H. Paff 1959 Electrical and Mechanical properties of chick embryo heart ... Experimental Heart-block in the Chick Embryo GEORGE H. PAFF, ROBERT J. BOUCEK AND HAROLD S. KLOPFENSTEIN Departments of ...
more infohttps://www.docme.ru/doc/2168526/experimental-heart-block-in-the-chick-embryo

Vitamin E-Induced Changes in Glutamate and GABA Metabolizing Enzymes of Chick Embryo CerebrumVitamin E-Induced Changes in Glutamate and GABA Metabolizing Enzymes of Chick Embryo Cerebrum

Vitamin E-treated chick embryo cerebrum showed decrease in GS activity in comparison to control Group I chick embryo cerebrum. ... and 20-day incubated chick embryos) for cytosolic (. ; ) and mitochondrial (. ; ) GDH activities were significant at and , ... 20-day incubated chick embryos only) and mitochondrial (15-day and 20-day incubated chick embryos) enzyme activities (Figure 5 ... and 20-day incubated chick embryos) for cytosolic (. ; ) and mitochondrial (. ; ) A-KGDHH activities were significant at . ...
more infohttps://www.hindawi.com/journals/isrn/2013/851235/

The Effects of Respiratory Acidosis in the Chick Embryo | Journal of Experimental BiologyThe Effects of Respiratory Acidosis in the Chick Embryo | Journal of Experimental Biology

The Effects of Respiratory Acidosis in the Chick Embryo Message Subject (Your Name) has sent you a message from Journal of ... 1. Embryos of the domestic fowl have been incubated in normal conditions and in an atmosphere of 9% carbon dioxide from day 9 ... 2. There is a rapid increase in blood bicarbonate and base excess when the embryos are exposed to carbon dioxide. The increase ...
more infohttps://jeb.biologists.org/content/55/1/77

Staging of intestinal development in the chick embryo.Staging of intestinal development in the chick embryo.

The detailed drawings of intestine from chick embryos aged 2.5 to 10 days were correlated with age of embryos and developmental ... To facilitate precise comparisons of chick embryo intestine development, we prepared an intestinal staging system. Embryos were ... Staging of intestinal development in the chick embryo.. код для вставки. код для вставки на сайт или в блог. Ширина: (. aвто. ) ... 9). d; H&H, 7 d; H, 7-7 d; A&N, 7 INTESTINE DEVELOPMENT IN CHICK EMBRYO 917 intestine. Each limb of the small intestine is ...
more infohttps://www.docme.ru/doc/2176238/staging-of-intestinal-development-in-the-chick-embryo

I have just accidently killed a chick embryo |
Mumsnet DiscussionI have just accidently killed a chick embryo | Mumsnet Discussion

I thought they were old eggs, but when I threw them out I found that one of them had an embryo in it. ... I am thinking that if we do end up with new chicks, I could move chicks and hen down to our cellar (it has a window and heating ... I thought they were old eggs, but when I threw them out I found that one of them had an embryo in it. A hen has just gone into ... shame i know but you can encourage her back to the same spot in the spring with china eggs and the chicks will have much more ...
more infohttps://www.mumsnet.com/Talk/chicken_keepers/1321403-I-have-just-accidently-killed-a-chick-embryo

HUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS | ScienceHUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS | Science

HUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS ... HUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS ... HUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS ... HUMAN IMMUNIZATION WITH A DERMAL VACCINE CULTIVATED ON THE MEMBRANES OF CHICK EMBRYOS ...
more infohttp://science.sciencemag.org/content/78/2030/484

Laboratory project: The Development of Chick Embryo Retina  (September 1977)Laboratory project: 'The Development of Chick Embryo Retina' (September 1977)

Laboratory project: The Development of Chick Embryo Retina Description: Summary of work for this project as indicated in the ... Objectives: The objective of the project is to study the biochemical step required for synaptogenesis in chick embryo retina. ... GABA was found to regulate the specific activity of glutamic acid decarboxylase in cells dissociated from chick embryo retina ... Title of Project: The Development of Chick Embryo Retina Names, Laboratory and Institute Affiliations, and Titles of Principal ...
more infohttps://profiles.nlm.nih.gov/ps/retrieve/ResourceMetadata/JJBBQW

IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES | ScienceIMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES | Science

IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES. By J. W. Beard, Harold Finkelstein, W. C. Sealy, R. W ... IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES. By J. W. Beard, Harold Finkelstein, W. C. Sealy, R. W ... IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES. By J. W. Beard, Harold Finkelstein, W. C. Sealy, R. W ... IMMUNIZATION AGAINST EQUINE ENCEPHALOMYELITIS WITH CHICK EMBRYO VACCINES Message Subject. (Your Name) has forwarded a page to ...
more infohttps://science.sciencemag.org/content/87/2265/490.1/tab-e-letters

A fate map of the epiblast of the early chick embryo | DevelopmentA fate map of the epiblast of the early chick embryo | Development

1955) A new technique for the cultivation of the chick embryo in vitro. J. Embryol. Exp. Morph 3, 326-331. ... 1990) The marginal zone and its contribution to the hypoblast and primitive streak of the chick embryo. Development 109, 667- ... We have used carbocyanine dyes (DiI and DiO) to generate fate maps for the epiblast layer of the chick embryo between stage X ... 1951) A series of normal stages in the development of the chick embryo. J. Morph 88, 49-92. ...
more infohttps://dev.biologists.org/content/120/10/2879?ijkey=e8f3ca3f7c7d276d5d6a6d9c52271c7fa09524c9&keytype2=tf_ipsecsha

Organization of hindlimb muscle afferent projections to lumbosacral motoneurons in the chick embryo | Journal of NeuroscienceOrganization of hindlimb muscle afferent projections to lumbosacral motoneurons in the chick embryo | Journal of Neuroscience

Organization of hindlimb muscle afferent projections to lumbosacral motoneurons in the chick embryo. MT Lee and MJ ODonovan ... We have examined the organization of muscle afferent projections to motoneurons in the lumbosacral spinal cord of chick embryos ... Organization of hindlimb muscle afferent projections to lumbosacral motoneurons in the chick embryo ... Organization of hindlimb muscle afferent projections to lumbosacral motoneurons in the chick embryo ...
more infohttps://www.jneurosci.org/content/11/8/2564
  • Vitamin E-deficient diets lead to encephalomalacia and ataxia in growing chicks, ataxia, and neuroaxonal degeneration in brain stem, spinal cord, and peripheral nerves and pigmentary degeneration of retina develops in rats and rhesus monkeys [ 5 - 8 ]. (hindawi.com)
  • We have examined the organization of muscle afferent projections to motoneurons in the lumbosacral spinal cord of chick embryos between stage 37, when muscle afferents first reach the motor nucleus, and stage 44, which is just before hatching. (jneurosci.org)
  • Wnt expression patterns in chick embryo nervous system. (nih.gov)
  • The timing and spatial distribution of Wnt-gene expression in the chick embryo further support the general hypothesis that Wnt genes play key roles in patterning the developing vertebrate nervous system. (nih.gov)
  • The motor output from lumbosacral segments was characterized by recording the pattern of ventral root and muscle nerve discharge in 6-14-d-old embryos. (jneurosci.org)
  • The whole embryo culture system allows to directly assessing the neural inducing activity on nonneural ectodermal cells. (nih.gov)
  • GABA was found to regulate the specific activity of glutamic acid decarboxylase in cells dissociated from chick embryo retina and cultured in vitro. (nih.gov)
  • 1993 ) The homeobox gene goosecoid and the origin of organizer cells in the early chick blastderm. (biologists.org)
  • Major Findings: Two pathways for gamma-aminobutyric acid synthesis were found in chick embryo retina. (nih.gov)
  • I thought they were old eggs, but when I threw them out I found that one of them had an embryo in it. (mumsnet.com)
  • shame i know but you can encourage her back to the same spot in the spring with china eggs and the chicks will have much more of a chance. (mumsnet.com)
  • Neural induction in whole chick embryo cultures by FGF. (nih.gov)
  • 1988 ) Changes in the expression of the carbohydrate epitope HNK-1 associated with mesoderm induction in the chick embryo. (biologists.org)
  • Intact embryos of 36 to 120 hours were floated on to glass plates and treated with digoxin-Tyrode solution. (docme.ru)
  • The embryos were removed from the shell with their circulation intact and temperature maintained constant. (ahajournals.org)
  • Rabies purified chick embryo cell vaccine is used to protect people who have been bitten by animals (post-exposure) or otherwise may be exposed to the rabies virus (pre-exposure). (adventisthealthcare.com)