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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >MODULATION OF PAIR BONDING IN FEMALE PRAIRIE VOLES (MICROTUS OCHROGASTER) BY CORTICOSTERONE
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MODULATION OF PAIR BONDING IN FEMALE PRAIRIE VOLES (MICROTUS OCHROGASTER) BY CORTICOSTERONE

机译：CORTICOSTERONE对雌性大麦小卵对的结合的调控

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摘要

Glucocorticoid levels in animals may respond to and influence the development of social attachments. This hypothesis was tested in prairie voles (Microtus ochrogaster), monogamous rodents that form long-term heterosexual pair bonds. In socially naive female prairie voles, cohabitation with an unfamiliar male resulted in a dramatic decline in serum corticosterone levels, When corticosterone levels were reduced via adrenalectomy, females developed partner preferences after 1 h of cohabitation, while sham-operated and untreated females required 3 h or more of nonsexual cohabitation to establish a partner preference. In adrenalectomized and intact females, exogenous injections of corticosterone, given prior to social exposure, prevented the development of preferences for the cohabitating male. Although corticosterone inhibited the development of partner preferences, it did not interfere with the expression of previously established social preferences. These results suggest that social stimuli can modulate adrenal activity and that adrenal activity, in turn, is capable of influencing the formation of adult social preferences in female prairie voles, The involvement of the adrenal axis in the formation of partner preferences and the subsequent development of pair bonds provides a mechanism through which environmental and social factors may influence social organization in this species. [References: 35]
机译：动物体内的糖皮质激素水平可能会对社交依恋产生反应并产生影响。这个假设在草原田鼠（田鼠（Microtus ochrogaster））中形成了一夫一妻的啮齿动物，它们形成了长期的异性恋双键。在天真社交的雌性大田鼠中，与不熟悉的雄性同居会导致血清皮质酮水平急剧下降。当通过肾上腺切除术降低皮质酮水平时，雌性在同居1 h后会出现伴侣偏好，而假手术和未经治疗的雌性则需要3 h或更多的非性同居关系来建立伴侣偏好。在肾上腺切除术和完整的女性中，在暴露于社会之前先外源注射皮质酮，阻止了对同居男性的偏爱。尽管皮质酮抑制伴侣偏好的发展，但它并不干扰先前建立的社交偏好的表达。这些结果表明，社交刺激可以调节肾上腺活动，而肾上腺活动又能够影响雌性田鼠的成年社交偏好的形成。双键提供了一种机制，环境和社会因素可通过该机制影响该物种的社会组织。 [参考：35]

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