Estradiol phase shifts circannual body mass rhythms of male ground squirrels.
Estradiol phase shifts circannual body mass rhythms of male ground squirrels.
复制标题
雌二醇会改变雄性地松鼠的年度体重节律。
DOI:
10.1152/ajpregu.1998.274.3.r754
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
Zucker,I
中科院分区:
文献类型:
--
作者:
Hiebert,SM;Lee,TM;Licht,P;Zucker,I
Gonadectomized male golden-mantled ground squirrels (Spermophilus lateralis) were implanted with estradiol benzoate (EB)-filled or empty capsules. Body mass was monitored before, during, and for at least 1 yr after hormone treatment. EB treatment during the mass-gain phase of the annual cycle significantly decelerated increases in body mass; the period of the circannual rhythm (CAR) of body mass was 54 days longer in EB- than blank-treated squirrels. Hormone treatment during the mass-loss phase accelerated mass loss; although this effect only approached statistical significance, some phase markers of the CAR were significantly advanced in subsequent cycles. We conclude that, as in females, estradiol affects the waveform of the CAR of males differently at different phases of the circannual cycle. Sexual differentiation does not eliminate responsiveness of CARs of squirrels to estradiol; sex differences, if any, are subtle rather than absolute and, in this respect, differ from circadian rhythms.
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影响因子:
3.6
作者:
Smale,L;Pelz,K;Zucker,I;Light,P
通讯作者:
Light,P
影响因子:
--
作者:
ZUCKER, I;FITZGERALD, KM;MORIN, LP
通讯作者:
MORIN, LP
DOI:
10.1152/ajpregu.1983.244.4.r472
发表时间:
1983
期刊:
The American journal of physiology
影响因子:
--
作者:
Zucker,I;Boshes,M;Dark,J
通讯作者:
Dark,J
DOI:
10.1152/ajpregu.1992.262.6.r1096
发表时间:
1992
期刊:
The American journal of physiology
影响因子:
--
作者:
Lee,TM;Zucker,I
通讯作者:
Zucker,I
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
G. R. Michener
通讯作者:
G. R. Michener