Postnatal development of corticosteroid function of the adrenals in C57BL/6J-A y mice

Postnatal development of corticosteroid function of the adrenals in C57BL/6J-A y mice We studied postnatal development of corticosteroid function of the adrenals in mice during the period of elevated activity of the hypothalamic-pituitary-adrenal axis and the influence of mutant gene A y on this process. Normally, a corticosterone peak in blood and increased basal and stimulated steroidogenesis in vitro are observed in 3-week old mice. In 3-week old A y/a mice (hyperexpression of agouti protein) a corticosterone peak in blood is lowered and genotypic differences in steroidogenesis in vitro are absent, as compared to a/a mice (absence of agouti), while at the ages of 10 and 15 weeks, there were no genotypic differences in the blood level of corticosterone and steroidogenesis in vitro was elevated. Thus, a high level of corticosterone during the period of elevated activity of the hypothalamic-pituitary-adrenal axis in 3-week old mice is determined by enhanced steroidogenic function of the adrenals. Mutant gene A y in male mice affected the postnatal development of the adrenal function: the peak of corticosterone in blood was lowered during the period of elevated activity of the system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Postnatal development of corticosteroid function of the adrenals in C57BL/6J-A y mice

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360407010079
Publisher site
See Article on Publisher Site

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