Fatherhood, pairbonding and testosterone in the Philippines.
Fatherhood, pairbonding and testosterone in the Philippines.
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DOI：
10.1016/j.yhbeh.2009.07.010
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发表时间：
2009-10
影响因子：
3.5
通讯作者：
Feranil AB
中科院分区：
文献类型：
--
作者：
Kuzawa CW;Gettler LT;Muller MN;McDade TW;Feranil AB
在包括人类在内的具有高水平父亲照顾的物种中，睾酮（T）被认为有助于调解养育和交配努力之间的权衡。这一假设是支持的观察较低的T在配对的男子或父亲相比，单一的，非父亲，然而，以前的工作已经强调了人口的变化之间的关联T和配对或父亲的地位。在这里，我们评估这一假设在一个大的（n=890），有代表性的出生队列的年轻男子（年龄范围20.5-22.5岁）生活在宿务市，菲律宾。在睡前和第二天早上醒来后立即收集的唾液中测量生物可利用T。测定清晨血浆T和黄体生成素（LH）。在这一样本中，20%的男性是伴侣关系，定义为与伴侣生活或已婚，13%是父亲，大约一半的父亲报告参与育儿。配对的男性在一天的两个时间都有显着降低的T。与其他人群不同，这种关系完全由父亲身份来解释：在非父亲的大型子样本中，配对和单身男性的平均T几乎相同。自我报告的参与儿童保育和较低的晚上T之间有很强的关联，支持晚上T的最低点与一天中的社交互动有关的观点。总血浆T和LH也存在类似的关系，这表明这些关系是由LH分泌的中枢介导的变化协调的。相对温和的T差异，在宿务的父亲，在其他研究相比，可能反映了较低水平的父亲参与儿童保育活动，在这个人口。我们的研究结果使用了一个大型的，特征鲜明的出生队列支持假设的作用，T作为中介的交配和养育子女的努力在人类，而贡献的证据，文化差异的相对重要性的配对和父亲对这些关系。
In species with a high level of paternal care, including humans, testosterone (T) is believed to help mediate the trade-off between parenting and mating effort. This hypothesis is supported by the observation of lower T in pairbonded men or fathers compared to single, non-fathers; however, prior work has highlighted population variation in the association between T and pairbonding or fatherhood status. Here we evaluate this hypothesis in a large (n=890), representative birth cohort of young men (age range 20.5–22.5 years) living in Cebu City, the Philippines. Bioavailable T was measured in saliva collected prior to bed and immediately upon waking the following morning. Plasma T and luteinizing hormone (LH) were measured in morning plasma samples. In this sample, 20% of men were pairbonded, defined as living with a partner or married, 13% were fathers, and roughly half of fathers reported involvement in childcare. Pairbonded men had significantly lower T at both times of day. Unlike in other populations, this relationship was accounted for entirely by fatherhood status: among the large sub-sample of non-fathers, mean T was nearly identical among pairbonded and single men. There was a strong association between self-reported involvement in childcare and lower evening T, supporting the idea that the evening nadir in T is related to social interactions across the day. Similar relationships were found for total plasma T and LH, suggesting that these relationships are coordinated by centrally-mediated changes in LH secretion. The relatively modest T difference in relation to fatherhood at Cebu, in comparison to other studies, may reflect a lower level of paternal involvement in childcare activities in this population. Our findings using a large, well-characterized birth cohort support the hypothesized role of T as mediator of mating and parenting effort in humans, while contributing evidence for cultural variation in the relative importance of pairbonding and fathering to these relationships.
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影响因子：
4.8
作者：
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通讯作者：
DABBS, JM
影响因子：
2.2
作者：
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作者：
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作者：
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Steiner, M
DOI：
10.1007/s12110-004-1016-6
发表时间：
2004-01-01
影响因子：
2.5
作者：
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通讯作者：
Ellison, PT