Results 241 to 250 of about 103,740 (294)
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Gonadal Growth in Chick Embryos
Nature New Biology, 1971During ovarian differentiation of bird embryos, ovaries grow faster than testes. The difference for mammals may reflect the sex chromosome constitution.
U, Mittwoch +3 more
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Development, 1978
ABSTRACT Chick embryos ranging from the stage of first cleavage to that of about 700 cells were removed from the oviduct and examined by transmission electron microscopy. Beneath the cell membrane is a yolk-free cortical region containing microfilaments.
R, Bellairs, F W, Lorenz, T, Dunlap
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ABSTRACT Chick embryos ranging from the stage of first cleavage to that of about 700 cells were removed from the oviduct and examined by transmission electron microscopy. Beneath the cell membrane is a yolk-free cortical region containing microfilaments.
R, Bellairs, F W, Lorenz, T, Dunlap
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Archives of Dermatology and Syphilology, 1942
The intravenous injection of human Frei antigen as a diagnostic test for lymphogranuloma venereum was introduced by Hellerstom in 1931.1Its value was confirmed by Gay Prieto and Egea Bueno2and by Flandin and Turiaf.3Ravaut, Levaditi and Maisler4reported similar results from the use of mouse brain antigen intravenously, and Decker, Canizares and Reider ...
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The intravenous injection of human Frei antigen as a diagnostic test for lymphogranuloma venereum was introduced by Hellerstom in 1931.1Its value was confirmed by Gay Prieto and Egea Bueno2and by Flandin and Turiaf.3Ravaut, Levaditi and Maisler4reported similar results from the use of mouse brain antigen intravenously, and Decker, Canizares and Reider ...
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Neuraminidase in tissues of the chick embryo and chick
Biochimica et Biophysica Acta, 1963Abstract 1. 1. The neuraminidase (N-acetylneuraminate glycohydrolase, EC 3.2.1.18) activity of subcellular fractions obtained from chorioallantoic membrane of chick embryos was determined. More than 90% of the activity was found in a supernatant fraction. 2. 2.
B, COOK, G L, ADA
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Amniotic Inoculation of Chick Embryos
Nature, 1946THE respiratory tract of the developing chick embryo is susceptible to infection with various bacteria and the viruses of influenza, psittacosis, herpes and certain other infections of man and animals. This infection of the respiratory system is secured most readily by an inoculation of the virus directly into the amniotic cavity.
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The Chick Embryo Metastasis Model
2003The growth and dissemination of malignant tumors continues to have a devastating impact on people throughout the United States and the rest of the world. In fact, it is estimated that well over a half a million new cases of cancer will be diagnosed per year (1).
E, Petitclerc, P C, Brooks
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Allograft reactivity in chick embryos
Journal of Experimental Zoology, 1971AbstractKinetic studies with the splenomegaly assay and the in vivo antibody assay of marker allogeneic immunocompetent cells were made to ascertain when in embryonic development the capacity to actively reject foreign cells is manifested by the chick embryo.
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Microangiography in explanted chick embryos
Microvascular Research, 1981Abstract A new method is described for explanation, vital microscopy, and microangiography with FITC-dextran injection in 43- to 76-hr embryos. The method has proved useful to visualize the embryonic microvasculature from precirculatory stages to beginning of the fourth day.
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1973
Publisher Summary This chapter describes the culturing of chick embryo cells. For the ordinary tissue culture work, fertile eggs can be obtained from any local hatchery. For specialized work with avian tumor viruses, embryos of a particular genotype are often required.
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Publisher Summary This chapter describes the culturing of chick embryo cells. For the ordinary tissue culture work, fertile eggs can be obtained from any local hatchery. For specialized work with avian tumor viruses, embryos of a particular genotype are often required.
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Hypoglycemia in Malathion-treated chick embryos
Canadian Journal of Zoology, 1975Chick embryos were exposed to a teratogenic dose of Malathion at the 5-day incubation stage, and the effect of this treatment on blood sugar levels was studied from the 9th day of incubation to hatching. The Malathion caused a decrease in blood sugars and this hypoglycemia persisted throughout the incubation period until day 19.
A L, Arsenault, M A, Gibson, M E, Mader
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