Results 151 to 160 of about 1,037 (181)
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Chromosome Preparations from the Avian Allantoic Sac
Stain Technology, 1972An abundance of mitotic cells, a rapid and uniform response of cells to mitotic inhibition, ease in obtaining a monolayer of cells, clear and well-spread chromosomes make the allantois an ideal tissue for squash preparations. After a 45 min incubation of each embryo, still in the shell, with 0.02 ml of 0.05% Colcemid, 4-day avian embryos were treated ...
S E, Bloom, G, Povar, D B, Peakall
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The buffering capacities of allantoic and amniotic fluids of the chick
Archives of Biochemistry and Biophysics, 1954Abstract Aliquots of chick amniotic and allantoic fluids at 8, 10, 12, 14, and 16 days of age were titrated with 0.1-ml. additions of 0.0985 N HCl and 0.0982 N NaOH. The amniotic fluid exhibited no buffer capacity on the 8th, 10th, and 12th days.
C A, RANDLES, A L, ROMANOFF
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The bovine allantoic and amniotic epithelia
Anatomy and Embryology, 1982The ectodermal and endodermal coverings of the allanto-amniotic membrane in cattle fetuses of various gestational ages have been studied by scanning and transmission electron microscopy. We have observed that the allantoic and amniotic epithelia have rather similar cells which are rich in filaments but poor in organelles.
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APPEARANCE OF OESTRONE SULPHATE IN THE ALLANTOIC FLUID OF THE COW
Journal of Endocrinology, 1978Reproductive Physiology Program, Animal Research Institute, Ottawa, Ontario, Canada, K1A 0C6 and * Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1 (Received 15 May 1978) The ability of the conceptus to synthesize oestrogens during the early stages of pregnancy has recently been receiving ...
H A, Robertson, G J, King, J A, Carnegie
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Morphological study of the chorio-allantoic fetal membranes
European Journal of Obstetrics & Gynecology and Reproductive Biology, 1984Morphological study of the chorio-allantoic fetal membranes has demonstrated the existence of foot processes extending from the main body of amniotic cells and containing microfibrils arranged in dense bundles as described in podocytes of renal glomerulae; on the surface fronds and between their bases many small pits and caveolae are seen; in the ...
H N, Minh, A, Smadja, L, Orcel
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Structural and immunological studies of chick allantoic antigen
Carbohydrate Research, 1970Abstract Mild hydrolysis of chick allantoic antigen with acid liberated, among other products, terminal non-reducing residues of fucose and D -galactofuranose. D -galactofuranose residues were also present in the interior of carbohydrate chains.
M.J. How, J.D. Higginbotham
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Proteins in the amniotic and allantoic fluids of fetal pigs
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1984Seven proteins were identified in the amniotic and allantoic fluids of fetal pigs (Sus scrofa domesticus) using crossed immunoelectrophoresis: albumin, fetuin, transferrin, alpha-fetoprotein (AFP), alpha 1-acid glycoprotein, alpha 1-antitrypsin and alpha 2-macroglobulin.
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Reproduction of Mumps Virus in the Chorio-allantoic Membrane
Nature, 1955LITTLE is known about the reproduction cycle of mumps virus. This seems strange, as some of the techniques available for influenza virus should be applicable to this virus, which is in many ways similar in its reactions. The method introduced by Hoyle1,2 in his study on the multiplication of influenza virus in egg membranes, however, did not yield ...
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Microvascular Growth in the Chicken Chorio-allantoic Membrane
1997The chorio-allantoic membrane (CAM) plays a vital role providing the chicken embryo with O2. Its growth and in particular the growth of its capillary network has important implications for the development of the embryo. And yet, it still remains to be determined to what extent the capillary growth is affected on the one hand via vessel sprouting, and ...
König MF, Schlatter P, Burri PH
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