دانلود مقاله ISI انگلیسی شماره 77605
عنوان فارسی مقاله

تنوع در طول تکرار CAG در پیش بینی متغیرهای ژن گیرنده آندروژن مرتبط با رقابت جویی درون جنسیتی در مردان

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77605 2011 7 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Variation in CAG repeat length of the androgen receptor gene predicts variables associated with intrasexual competitiveness in human males
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Hormones and Behavior, Volume 60, Issue 3, August 2011, Pages 306–312

کلمات کلیدی
ژن گیرنده آندروژن؛ تستوسترون؛ استحکام؛ تسلط - پرستیژ؛ جفت گیری انسان
پیش نمایش مقاله
پیش نمایش مقاله تنوع در طول تکرار CAG در پیش بینی متغیرهای ژن گیرنده آندروژن مرتبط با رقابت جویی درون جنسیتی در مردان

چکیده انگلیسی

An expanding body of research suggests that circulating androgens regulate the allocation of energy between mating and survival effort in human males, with higher androgen levels promoting greater investment in mating effort. Because variations in the number of CAG codon repeats in the human androgen receptor (AR) gene appear to modulate the phenotypic effects of androgens – with shorter repeat lengths associated with greater androgenic effects per unit androgen – polymorphisms in this gene may predict trait-like individual differences in the degree to which men are calibrated toward greater mating effort. Consistent with this, men in the present study with shorter CAG repeat lengths exhibited greater upper body strength and scored higher on self-report measures of dominance and prestige, all of which are argued to be indices of mating effort. Repeat length failed to predict sociosexual orientation (i.e. pursuit of short-term mating relationships), however, suggesting that the traits correlated with this polymorphism may be primarily associated with intrasexual competitiveness in the service of long-term mating effort. None of these measures of mating effort was related to baseline testosterone concentrations (either as main effects or as interactions with CAG repeat length), implying that long-term androgen exposure associated with AR gene polymorphisms may account for more variance in some androgen-dependent traits than does current testosterone concentration. These findings provide further evidence for the importance of the CAG repeat polymorphism in the AR gene in explaining a broad range of individual differences in human males.

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