Sex differences in hormonal responses to social conflict in the monogamous California mouse.
Sex differences in hormonal responses to social conflict in the monogamous California mouse.
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DOI：
10.1016/j.yhbeh.2010.04.008
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发表时间：
2010-08
影响因子：
3.5
通讯作者：
Hostetler, Caroline
中科院分区：
文献类型：
--
作者：
Trainor, Brian C.;Takahashi, Elizabeth Y.;Silva, Andrea L.;Crean, Katie K.;Hostetler, Caroline
一夫一妻制的物种通常被认为不太可能在行为或大脑结构上表现出性别差异。大多数先前研究应激激素反应的性别差异的研究都使用了性别相对二态的物种，如大鼠。我们研究了一夫一妻制的加利福尼亚小鼠（Peromyscus californicus）对居民入侵者测试的应激激素反应。我们还测试了不同光周期下的雄性和雌性，因为光周期已经被证明会影响攻击和应激激素反应。在居住者闯入测试后，雌性老鼠的皮质酮水平立即显著升高，而雄性老鼠则没有。在短时间内，雄性的皮质酮水平升高，而雌性没有。在攻击性测试中，雌性也显示出血浆催产素水平的显著增加，但只有在长时间被关在笼子里时才会如此。这与我们的观察一致，即当长时间饲养时，雌性而不是雄性在室旁核（PVN）中有更多的催产素阳性细胞。我们的数据表明，在其他啮齿类动物中发现的糖皮质激素反应的性别差异存在于一夫一妻制物种中。
Monogamous species are usually considered to be less likely to exhibit sex differences in behavior or brain structure. Most previous studies examining sex differences in stress hormone responses have used relatively sexually dimorphic species such as rats. We examined the stress hormone responses of monogamous California mice (Peromyscus californicus) to resident-intruder tests. We also tested males and females under different photoperiods, because photoperiod has been shown to affect both aggression and stress hormone responses. Females, but not males showed a significant increase in corticosterone levels immediately following a resident-intruder test. Males but not females showed elevated corticosterone levels under short days. Females tested in aggression tests also showed a significant increase in plasma oxytocin levels, but only when housed in long days. This was consistent with our observation that females but not males had more oxytocin positive cells in the paraventricular nucleus (PVN) when housed under long days. Our data show that sex differences in glucocorticoid responses identified in other rodents are present in a monogamous species.
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影响因子：
3.5
作者：
Davis, ES;Marler, CA
通讯作者：
Marler, CA
影响因子：
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作者：
CRITCHLOW, V;BARSELA, M;LIPSCOMB, HS
通讯作者：
LIPSCOMB, HS
影响因子：
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作者：
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通讯作者：
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作者：
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通讯作者：
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作者：
Grippo, Angela J.;Gerena, Davida;Carter, C. Sue
通讯作者：
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