Results 201 to 210 of about 236,944 (258)

Early development of the chick embryo [PDF]

open access: yesJournal of Morphology, 1993
AbstractThe ultrastructure of the early chick embryo was investigated, using scanning (SEM) and transmission electron microscopy (TEM). Eggs were obtained from the shell gland by injecting hens intravenously with a synthetic prostaglandin or arginine vasopressin.
J M, Watt, J N, Petitte, R J, Etches
openaire   +3 more sources

Cleavage in the chick embryo

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
openaire   +2 more sources

Neuraminidase in tissues of the chick embryo and chick

Biochimica et Biophysica Acta, 1963
Abstract 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
openaire   +2 more sources

Ventilatory chemosensitivity in the chick embryo

Respiratory Physiology & Neurobiology, 2003
In the externally pipped chicken embryo, oxygen consumption through the chorioallantoic membrane (VO2CAM) ranged between 2 and 55% (mean approximately 24%) of that through the lungs (VO2lung). Hypercapnia (5'-10' of 2, 5, or 8% CO2) or mild hypoxia (15% O2) had minor effects on VO2, whereas moderate or severe hypoxia (10-5% O2) caused large drops of ...
Tara M, Menna, Jacopo P, Mortola
openaire   +2 more sources

Nucleoside phosphotransferase of chick embryo

Molecular and Cellular Biochemistry, 1979
This paper describes a purification procedure and some properties of a nonspecific nucleoside phosphotransferase of chick embryo, an activity which catalyzes the transfer of chick embryo, an activity which catalyzes the transfer of the phosphate ester from a deoxyribonucleotide or a pyrimidine ribonucleotide to a deoxyribonucleoside acceptor.
G, Tesoriere   +3 more
openaire   +2 more sources

Glycosaminoglycans in early chick embryo

The International Journal of Developmental Biology, 2003
The developmental profile of glycosaminoglycans (GAGs) were examined by cellulose acetate electrophoresis and high performance liquid chromatography in the early chick embryo from late blastula (stage XIII+) to early somite developmental stages (stage HH7-9). Sulphated GAGs were present from the earliest stages.
Spyros S, Skandalis   +3 more
openaire   +2 more sources

Origin of transcortin in the chick embryo

Journal of Steroid Biochemistry, 1979
Abstract The synthesis of a transcortin-like molecule in liver of the chick embryo is demonstrated in vitro. Since no contamination by blood CBG occurred and no C-21 steroid binders were detected in the liver cytosol of 5-day-old embryos, liver of embryos at this stage was cultured in a synthetic medium without serum.
B, Martin, J M, Gasc
openaire   +2 more sources

Home - About - Disclaimer - Privacy