A mechanism for virilization of female spotted hyenas in utero.
A mechanism for virilization of female spotted hyenas in utero.
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雌性斑鬣狗在子宫内男性化的机制。
DOI:
10.1126/science.8391165
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
Glickman,SE
中科院分区:
文献类型:
--
作者:
Yalcinkaya,TM;Siiteri,PK;Vigne,JL;Licht,P;Pavgi,S;Frank,LG;Glickman,SE
Female spotted hyenas exhibit male-like genitalia and dominance over males. Hyena ovarian tissues incubated in vitro produced large quantities of the steroid hormone precursor androstenedione. The activity of aromatase, which converts androstenedione to estrogen, was one-twentieth as great in hyena versus human placental homogenates. In comparison, the activity of 17β-hydroxysteroid dehydrogenase, which converts androstenedione to testosterone, was equal in the two homogenates. The limited aromatase activity may allow the hyena placenta to convert high circulating concentrations of androstenedione to testosterone, which results in virilization of the fetal external genitalia and possibly destruction of fetal ovarian follicles. Androstenedione production by residual ovarian stromal cells during reproductive life accounts for the epigenetic transmission of virilization in female spotted hyenas.
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DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
J. Szolcsányi
通讯作者:
J. Szolcsányi
DOI:
10.3181/00379727-80-19644
发表时间:
1952
影响因子:
--
作者:
J. Hardy;H. Wolff;H. Goodell
通讯作者:
H. Goodell
DOI:
--
发表时间:
1984
期刊:
Human neurobiology
影响因子:
--
作者:
H. E. Torebjörk;W. Schady;J. Ochoa
通讯作者:
J. Ochoa
影响因子:
--
作者:
J. Szolcsányi
通讯作者:
J. Szolcsányi
DOI:
--
发表时间:
1945
期刊:
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine
影响因子:
--
作者:
C. M. Parsons;F. R. Goetzl
通讯作者:
F. R. Goetzl