Urinary prolactin is correlated with mothering and allo-mothering in squirrel monkeys.

Urinary prolactin is correlated with mothering and allo-mothering in squirrel monkeys.
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尿催乳素与松鼠猴的母性和异体母性相关。

DOI:
10.1016/j.physbeh.2004.12.006
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发表时间:
2005
影响因子:
2.9
通讯作者:
Newman,JohnD
Newman,JohnD
中科院分区:
医学3区
文献类型:
--
作者:
Soltis,Joseph;Wegner,FrederickH;Newman,JohnD

文献摘要

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催乳激素与许多物种的父母和异源父母对婴儿的照顾有关。成年雌性松鼠猴(Saimiri spp.)从事异母行为,其中包括携带和哺乳婴儿,但后代的公共照顾还没有调查从内分泌的角度在这tax.We试图填补这一空白,通过检查催乳素水平在松鼠猴(松鼠猴)作为一个功能的父母的反应。受试者被安置在国立卫生研究院动物中心,并在威斯康星州国家灵长类动物研究中心进行测定。为了检测松鼠猴中催乳素的存在,在常规健康检查期间同时从麻醉的受试者收集唾液、血液和唾液。催乳素在血清中可检测到,但在唾液样本中不可检测到。在核心研究中,在3个1只雄性多只雌性组中通过局灶性动物采样收集行为数据,并在整个行为研究期间每天从组笼下方的铝箔容器中无创收集单独识别的尿液。尿催乳素随时间的变化反映了研究期间妊娠、分娩和哺乳的雌性动物生殖状态的变化。一组中非哺乳期雌性动物和一只与婴儿一起饲养的雄性动物的平均尿催乳素水平高于2组中无婴儿的成年动物。在婴儿组中,成人的平均尿催乳素水平随着婴儿接触和照顾的量而增加。松鼠猴可能代表了一种新的灵长类动物模型,用于研究婴儿护理的内分泌学。
The hormone prolactin is implicated in infant care-giving by parents and allo-parents in a variety of species. Adult female squirrel monkeys (Saimiri spp.) engage in allo-mothering behavior, which includes carrying and nursing infants, but communal care of offspring has not been investigated from an endocrine standpoint in this taxon. We attempted to fill this gap by examining prolactin levels in squirrel monkeys (Saimiri sciureus) as a function of parental responsiveness. Subjects were housed at the National Institutes of Health Animal Center and assays were performed at the Wisconsin National Primate Research Center. To test for the presence of prolactin in squirrel monkey, saliva, blood and saliva were simultaneously collected from anesthetized subjects during routine health examinations. Prolactin was detectable in serum but not in saliva samples. In the core investigation, behavioral data were collected by focal animal sampling on three 1-male multi-female groups, and individually identified urine was collected non-invasively from foil containers underneath group cages on a daily basis throughout the behavioral study. Changes in urinary prolactin over time reflected changes in the reproductive state of a female who was pregnant, gave birth and lactated during the study. Mean urinary prolactin levels in non-lactating females and a male housed with infants in one group were higher than in adults from 2 groups without infants. In the group with infants, mean urinary prolactin levels in adults increased with the amount of infant contact and care-giving. The squirrel monkey may represent a new primate model for investigating the endocrinology of infant care-giving.