Topic
Coturnix
About: Coturnix is a research topic. Over the lifetime, 953 publications have been published within this topic receiving 23305 citations.
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TL;DR: Progress was rapid in attempts to develop lines of quail resistant to acute aflatoxicosis induced by oral dosing with aflatoxin, and 8- and 11-fold differences were present in mortality between two selected lines and their respective control lines.
Abstract: Progress was rapid in attempts to develop lines of quail resistant to acute aflatoxicosis induced by oral dosing with aflatoxin. After five generations of selection, 8- and 11-fold differences were present in mortality between two selected lines and their respective control lines. These quail lines should be of value in investigating the physiological basis of resistance to aflatoxin.
24 citations
TL;DR: The present results demonstrate that, despite a difference in an apolipoprotein moiety of VLDL, quail and chicken oocyte lipoprotein receptors share key structural and functional elements, which lends further support to the notion that receptor recognition is mediated by the common V LDL component, apoledipoprotein B.
Abstract: The plasma membrane receptor for VLDL and vitellogenin from oocytes of Japanese quail (Coturnix coturnix japonica) was characterized and compared with that of another domestic fowl, the chicken (Gallus domesticus). When visualized by ligand blotting with biotinylated or 125I-labeled lipoproteins, the quail VLDL/vitellogenin receptor had an apparent M(r) of 95 kDa under nonreducing conditions, identical to that of the chicken receptor. Upon analysis by ligand blotting, binding of radiolabeled quail plasma VLDL to the quail oocyte receptor seemed to be saturable and exhibited high affinity (apparent Kd of 13.9 mg/L). Cross-reactivity, at the level of ligand recognition, was observed between quail and chicken VLDL/vitellogenin receptors, and immunological relatedness was demonstrated by Western blotting with a rabbit anti-chicken oocyte VLDL receptor antibody. In contrast, a species difference was observed in the apolipoprotein VLDL-II moiety of plasma VLDL. Chicken apolipoprotein VLDL-II, an 82-amino acid protein with a disulfide crosslink at residue 75 (the sole cysteine residue), existed as a homodimer of 9.5 kDa subunits and, to a lesser extent, as a monomer. Quail apolipoprotein VLDL-II existed only in monomeric form without reduction and lacked cysteine. The present results demonstrate that, despite a difference in an apolipoprotein moiety of VLDL, quail and chicken oocyte lipoprotein receptors share key structural and functional elements. This lends further support to the notion that receptor recognition is mediated by the common VLDL component, apolipoprotein B.
24 citations
TL;DR: Dietary supplementation with EGCG reduces the incidence and size of spontaneously occurring leiomyoma of the oviduct in Japanese quail, and clinical trials should be conducted to investigate the efficacy of E GCG supplementation in the prevention and treatment of uterine leIomyoma in humans.
24 citations
TL;DR: The data support the notion that the effects of testosterone are controlled by enzymatic shifts which could modulate the sensitivity to the hormone at the cellular level.
24 citations
TL;DR: Twenty female quail were housed in continuous dark for 8 weeks and injected daily with estrogen, estrogen plus progesterone, or oil for 8 days and tested for copulatory behavior on Days 3, 5, and 7 after the first injection, finding that hormone-treated females permitted fewer successful copulations than untreated egg-laying females.
24 citations