Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Amnion


Related Topics

In the News (Fri 16 Nov 18)

  
  Vitro cellular interaction with amnion membrane substrate - Patent 4446234
The amnion membrane which is the subject of this invention is obtained from mammalian placenta by dissection from the chorion membrane by known methods; the integrity of the isolated amnion is then preferably verified by permeability and morphology studies.
The amnion membranes useful in the practice of the present invention are derived from mammalian placenta, preferably after sufficient gestation to allow differentiation of the chorion and amnion layers in the fetal membrane, typically four to five months in humans.
The amnion membrane 1 or 1a and the diagnostic apparatus of the invention are useful in in vitro assay methods for studying the interaction of a wide variety of cell types with the basement membrane surface.
www.freepatentsonline.com /4446234.html   (4617 words)

  
 Gray, Henry. 1918. Anatomy of the Human Body. Page 56
In the human embryo the earliest stages of the formation of the amnion have not been observed; in the youngest embryo which has been studied the amnion was already present as a closed sac (Figs.
This fluid increases in quantity and causes the amnion to expand and ultimately to adhere to the inner surface of the chorion, so that the extra-embryonic part of the celom is obliterated.
In reptiles, birds, and many mammals the amnion is developed in the following manner: At the point of constriction where the primitive digestive tube of the embryo joins the yolk-sac a reflection or folding upward of the somatopleure takes place.
www.bartleby.com /107/pages/page56.html   (578 words)

  
 Amnion - Wikipedia, the free encyclopedia
This cavity is roofed in by a single stratum of flattened, ectodermal cells, the amniotic ectoderm, and its floor consists of the prismatic ectoderm of the embryonic disk—the continuity between the roof and floor being established at the margin of the embryonic disk.
Outside the amniotic ectoderm is a thin layer of mesoderm, which is continuous with that of the somatopleure and is connected by the body-stalk with the mesodermal lining of the chorion.
This fluid increases in quantity and causes the amnion to expand and ultimately to adhere to the inner surface of the chorion, so that the extra-embryonic part of the coelom is obliterated.
en.wikipedia.org /wiki/Amnion   (707 words)

  
 Amnion: A Miracle of Birth for Healing Wounds
Based on similar amnion use in treatment of human wounds, the study was conducted almost 10 years ago by veterinarians at Auburn University.
At Auburn, the experimental horses had been sedated for the removal of the proud flesh, and local anesthesia had numbed the lacerated legs while the amnion was secured to the surrounding healthy tissues with skin staples.
For each dressing change, the veterinarians again sedated the horse, cut a window in the amnion dressing to examine the wound and then used Superglue to affix a replacement section to the original dressing, the edges of which remained stapled in place.
www.equisearch.com /horses_care/health/illnesses_injuries/eqamnion03   (1344 words)

  
 USE OF AMNIOTIC MEMBRANES AS BIOLOGICAL DRESSINGS IN CONTEMPORARY TREATMENT OF BURNS
Amnion adheres to the wound and dries rapidly, forming a thin crust.
Amnion is no obstacle to the removal of necrosis or to the application of auto- and allografts.
Amnion was used to cover mesh-grafts during the treatment of large bum sufaces.
www.medbc.com /annals/review/vol_7/num_4/text/vol7n4p202.htm   (1129 words)

  
 Extraembryonic tissue: Amnion   (Site not responding. Last check: 2007-11-04)
The amnion consists of a single ectodermal (probably epiblast-derived) layer which has usually acquired a complete coating of extraembryonic mesoderm by the end of stage 6b, as described by Krafka J.
The amnion consists of an internal ectodermal layer- a single layer of flattened cells, and an outer mesoderm layer.
The folding of the embryo brings the attachment of the amnion to a mid-ventral area of the embryo, contacting the connecting stalk and yolk sac stalk.
www.ana.ed.ac.uk /database/humat/notes/extraemb/amnion/amnion.htm   (405 words)

  
 Early Path Medical Consultation Services
The amnion is the "inner shell" of the conceptus, embryologically continuous with the epithelium of the umbilical cord and the baby's skin.
The amnion allows some water, possibly nutrient and possibly hormonal exchanges between the mother's blood vessels in the decidua capsularis and the amniotic fluid.
If amnion rupture occurs before the skin is well keratinized, fetal skin may become adherent to the connective tissue of the chorion.
www.earlypath.com /resources/keyconcept.html   (3500 words)

  
 Lysyl Oxidase (ras Recision Gene) Expression in Human Amnion: Ontogeny and Cellular Localization -- Casey and MacDonald ...
produced in amnion or are present in amniotic fluid (4).
primarily by the innermost membrane, the amnion (11), a tissue
Amnion tissue was used for the assay of lysyl oxidase activity, immunoreactive
jcem.endojournals.org /cgi/content/full/82/1/167   (4564 words)

  
 Amniotic sac - Wikipedia, the free encyclopedia
The outer membrane, the chorion, contains the amnion and is part of the placenta.
The amnion grows and begins to fill, mainly with water, around two weeks after fertilisation.
Monoamniotic pregnancy is when each embryo or foetus from one single zygote (monozygotic, commonly known as identical twins) is located within the same amnion which is itself in one chorion (monochorionic).
en.wikipedia.org /wiki/Amniotic_sac   (813 words)

  
 amnion | | Dictionary & Translation by Babylon
In the human embryo the earliest stages of the formation of the amnion have not been observed; in the youngest embryo which has been studied the amnion was already present as a closed sac, and appears in the inner cell-mass as a cavity.
Das Amnion (Amnios, auch Schafshaut) ist die dünne, gefäßlose innerste Eihaut (Embryonalhülle).
Die vom Amnion umschlossene Höhle vergrößert sich während der Schwangerschaft sehr schnell und umgibt schließlich allseitig das ungeborene Kind.
www.babylon.com /definition/amnion/All   (284 words)

  
 AmnioNet : Amnio Risks
We defer procedures, if there is a hint that the membranes may be infected - we assess this from fetal heart rate pattern and from tenderness of the uterus.
The fetus is encased in a sticky, self repairing membrane called the amnion.
The amnion seals itself instantly when the needle is withdrawn.
www.amnionet.com /p226.htm   (365 words)

  
 Rat Amnion Type IV Collagen Composition and Metabolism: Implications for Membrane Breakdown -- Lei et al. 60 (1): 176 ...
Amnions and kidneys were detergent-extracted and treated with bacterial collagenase to generate NC1 domain fragments, which were resolved by SDS-PAGE and then subjected to Western blotting using NC1 domain-specific antibodies.
Amnion extracts were subjected to Western blot analysis or zymography as described in the text.
Amnion cell apoptosis in AdMMP-9-infected amnion cultures was inhibited by batimastat.
www.biolreprod.org /cgi/content/full/60/1/176   (4409 words)

  
 Characterization of Group B Streptococcal Invasion of Human Chorion and Amnion Epithelial Cells In Vitro -- Winram et ...
The amnion epithelial cell monolayer is the final barrier to the amnionic fluid encountered by an invading pathogen.
The chorion and amnion epithelial cells form the outer and inner layers of the chorioamnion, respectively.
The final epithelial barrier of the chorioamnionic membrane for GBS to penetrate is the amnion cell layer.
iai.asm.org /cgi/content/full/66/10/4932   (6628 words)

  
 A Program of Cell Death and Extracellular Matrix Degradation Is Activated in the Amnion before the Onset of Labor -- ...
Total RNA was extracted from amnions and yolk sac placentae and size-fractionated on agarose gels (10).
Fibrillar collagens were extracted from amnion according to the method of Bass et al.
I collagen is the major structural component of the amnion (5).
www.jci.org /cgi/content/full/98/9/1971   (4283 words)

  
 Complementary Mechanisms of Enhanced Oxytocin-Stimulated Prostaglandin E2 Synthesis in Rabbit Amnion at the End of ...
are considerably up-regulated in the amnion at the end of gestation.
21, 22), the significance of PGHS-2 induction by OT in amnion
OT also stimulates p38 phosphorylation, but the significance of p38 activation in amnion cells is not presently known.
endo.endojournals.org /cgi/content/full/141/11/4136   (4104 words)

  
 Production of Matrix Metalloproteinase-9 in Lipopolysaccharide-Stimulated Human Amnion Occurs Through an Autocrine and ...
Amnion epithelial cells, trophoblasts, and decidual cells are
Amnion explants were treated with LPS in the presence of neutralizing
Amnion explants were incubated with LPS in the presence of neutralizing antibody against TNF
www.biolreprod.org /cgi/content/full/67/6/1952   (4006 words)

  
 Keratinocyte Growth Factor Expression in the Mesenchymal Cells of Human Amnion -- Casey and MacDonald 82 (10): 3319 -- ...
functions of the amnion are vested in the mesenchymal cells.
Northern analysis of KGF mRNA in human amnion epithelial and mesenchymal cells in monolayer culture.
Northern analysis of KGF mRNA in human amnion epithelial and mesenchymal cells in culture.
jcem.endojournals.org /cgi/content/full/82/10/3319   (3853 words)

  
 Introduction to the Amniota (via CobWeb/3.1 planetlab2.cs.umd.edu)   (Site not responding. Last check: 2007-11-04)
Inside the egg are a series of fluid-filled membranes which permit the embryo to survive: the amnion, allantois, yolk sac, and chorion.
Surrounding and protecting the embryo is the amnion, filled with amniotic fluid, and providing the embryo with a stable fluid environment.
The embryo is still surrounded by an amnion filled with amniotic fluid; because it is next to and surrounds the embryo, doctors will sometimes examine the fluid to determine the health of the unborn child.
www.ucmp.berkeley.edu.cob-web.org:8888 /vertebrates/tetrapods/amniota.html   (383 words)

  
 Gene expression patterns in human placenta -- Sood et al. 103 (14): 5478 -- Proceedings of the National Academy of ...
Six parts of placenta from which mRNA was isolated [namely, amnion, chorion, umbilical cord, and three sections of villus parenchyma (fetal, middle, and maternal)] are shown in bold.
The amnion and chorion were isolated by peeling them apart from the reflected membranes.
The clusters showing genes correlated with anatomy or immune function are amnion (A), umbilical cord (B), chorion (D), branch 2 (amnion, chorion, and umbilical cord) gene cluster (E), and branch 1 (villus parenchyma) (F).
www.pnas.org /cgi/content/full/103/14/5478   (4540 words)

  
 Medical Dictionary: Amnion - WrongDiagnosis.com - WrongDiagnosis.com
Amnion: thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
Amnion : extraembryonic membrane which contains the embryo and amniotic fluid.
The following list attempts to classify Amnion into categories where each line is subset of the next.
www.wrongdiagnosis.com /medical/amnion_printer.htm   (98 words)

  
 Induction of Oxytocin Receptor Gene Expression in Rabbit Amnion Cells -- Jeng et al. 139 (8): 3449 -- Endocrinology
in the amnion appear to be of physiological importance.
Amnion cells were cultured as described previously (1).
The intensity of labeling of the protected fragments was quantified with a PhosphorImager, and the amount of protected fragment in each lane was normalized relative to the concentration of 18S RNA.
endo.endojournals.org /cgi/content/full/139/8/3449   (4698 words)

  
 Immunohistochemical Localization of the Prostaglandin E Subtype-1 Receptor in Cytokine-Stimulated and Unstimulated ...
Human amnion cells, unstimulated and treated with anti-prostaglandin E subtype-1 globulin.
Chromogen deposition is associated with cytoplasmic membrane and occurs in isolated nests of reactive cells.
Human amnion cells stimulated with interleukin-1ß and treated with anti-prostaglandin E subtype-1 globulin.
www.greenjournal.org /cgi/content/full/94/6/1027   (2246 words)

  
 Wikinfo | Amnion   (Site not responding. Last check: 2007-11-04)
The amnion, also called the amniotic sac, is a tough but thin membrane which holds a developing fetus until shortly before birth.
Mammals, birds, and reptiles do and are called amniotes.
Images, some of which are used under the doctrine of Fair use or used with permission, may not be available.
www.wikinfo.org /wiki.php?title=Amnion   (105 words)

  
 CiteULike: Differences in sialic acid-galactose linkages in the chicken egg amnion and allantois influence human ...   (Site not responding. Last check: 2007-11-04)
CiteULike: Differences in sialic acid-galactose linkages in the chicken egg amnion and allantois influence human influenza virus receptor specificity and variant selection.
Differences in sialic acid-galactose linkages in the chicken egg amnion and allantois influence human influenza virus receptor specificity and variant selection.
This change in receptor specificity was accompanied by the appearance of variants in the population with Leu-to-Gln mutations at position 226 in their HA.
www.citeulike.org /user/dyctiostelium/article/447957   (554 words)

  
 Stem Cells - News - Juvenile Diabetes Research Foundation Partners with Stemnion; Research Looks to Create ...   (Site not responding. Last check: 2007-11-04)
Through the foundation's expanding Industry Discovery and Development Partnership Program, JDRF is awarding a two-year grant to Stemnion to investigate the ability of stem cells found on the inner membrane of the amnion to differentiate into insulin-secreting cells that might be transplanted into patients with type 1, or juvenile, diabetes.
But the application of islet transplantation is severely limited by the availability of donor pancreata: while as many as 3 million Americans have type 1 diabetes, fewer than 2,000 pancreata are available for transplantation annually.
Stem cells derived from the inner membrane of the amnion - which is normally discarded after the birth of a baby -- could provide an abundant source of much needed islet cells.
www.stemcellnews.com.cob-web.org:8888 /articles/stem-cells-diabetes-partnership.htm   (640 words)

  
 Apoptosis in the normal human amnion at term, independent of Bcl-2 regulation and onset of labour -- Kumagai et al. 7 ...
Apoptosis in the normal human amnion at term, independent of Bcl-2 regulation and onset of labour -- Kumagai et al.
between apoptosis in the amnion and the fragility of the fetal
Bourne, G.L. and Lacy, D. (1960) Ultra-structure of human amnion and its possible relation to the circulation of amniotic fluid.
molehr.oxfordjournals.org /cgi/content/full/7/7/681   (4484 words)

  
 Amnion-Chorion Separation After 17 Weeks' Gestation -- BROMLEY et al. 94 (6): 1024 -- Obstetrics & Gynecology
Image of the amnion (arrow) separate from the chorion and freely floating around the fetal limb.
Lack of fusion of amnion and chorion is seen sonographically
as a thin membrane (amnion) floating freely in the amniotic
www.greenjournal.org /cgi/content/full/94/6/1024   (1302 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.