Developmental patterns of hair cortisol in male and female nonhuman primates: Lower hair cortisol levels in vervet males emerge at puberty
作者： Mark L. Laudenslager , Matthew J. Jorgensen , Lynn A. Fairbanks
DOI: 10.1016/J.PSYNEUEN.2012.03.015
关键词: Allostatic load 、 Sexual maturity 、 Early adolescents 、 Juvenile 、 Nonhuman primate 、 Cortisol level 、 Biology 、 Age and sex 、 Hydrocortisone 、 Endocrinology 、 Internal medicine
摘要: Studies have yielded inconsistent results with regard to effects of age and sex on short term markers hypothalamic pituitary adrenal (HPA) activity. Hair cortisol provides a retrospective proxy measure the cumulative activity HPA axis over preceding 3-4 month period. In order describe potential developmental trends in this biomarker, we assessed hair levels between1-12 years cross-sectional study 350 vervets (222 females 128 males). Monkeys were grouped according as 1 (young juvenile), 2 (juvenile), 3 (early adolescent), 4 (late adolescent-young adult), 5-12 (adult) such that fully mature animals included year old group. We observed level was higher among younger monkeys declined (p<.001). More importantly effect significantly interacted (p=.02), consistently lower males than beginning at (p<.05 or better). The decline began one earlier suggesting an influence maturational processes typical both human nonhuman primates. advantage may be related social group patterns male emigration during adolescence many primate species.
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