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首页> 外文期刊>Biology Open >Vasotocin receptor blockade disrupts maternal care of offspring in a viviparous snake,?Sistrurus miliarius
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Vasotocin receptor blockade disrupts maternal care of offspring in a viviparous snake,?Sistrurus miliarius

机译：Vasotocin受体的阻滞会破坏胎生蛇的后代母体照护。？Sistrurus miliarius

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Parental care is a complex social behavior that is widespread among vertebrates. The neuroendocrine regulation of parent-offspring social behavior has been well-described in mammals, and to a lesser extent, in birds and fish. However, little is known regarding the underlying mechanisms that mediate the expression of care behaviors in squamate reptiles. In mammalian model species and humans, posterior pituitary hormones of the oxytocin and vasopressin families mediate parental care behaviors. To test the hypothesis that the regulatory role of posterior pituitary neuropeptides is conserved in a viviparous squamate reptile, we pharmacologically blocked the vasotocin receptor in post-parturient pigmy rattlesnakes,?Sistrurus miliarius, and monitored the spatial relationship between mothers and offspring relative to controls. Mothers in the control group demonstrated spatial aggregation with offspring, with mothers having greater post-parturient energy stores aggregating more closely with their offspring. Blockade of vasotocin receptors eliminated evidence of spatial aggregation between mothers and offspring and eliminated the relationship between maternal energetic status and spatial aggregation. Our results are the first to implicate posterior pituitary neuropeptides in the regulation of maternal behavior in a squamate reptile and are consistent with the hypothesis that the neuroendocrine mechanisms underlying social behaviors are broadly conserved among vertebrates.
机译：父母关怀是一种复杂的社会行为，在脊椎动物中广泛存在。亲子后代社交行为的神经内分泌调节在哺乳动物中已有很好的描述，而在鸟类和鱼类中则较少。然而，关于介导鳞状爬行动物中护理行为表达的潜在机制知之甚少。在哺乳动物模型物种和人类中，催产素和加压素家族的垂体后叶激素介导父母的护理行为。为了验证垂体后叶神经肽在胎生鳞状爬行动物中的调节作用是保守的这一假设，我们在药理学上阻断了产后猪响尾蛇，粟米长尾ist（Sistrurus miliarius）中的血管生成素受体，并监测了母亲和后代相对于对照的空间关系。对照组中的母亲表现出与后代的空间聚集，母亲的产后能量储存量更大，与后代的聚集更紧密。血管收缩素受体的阻断消除了母亲与后代之间空间聚集的证据，消除了母亲精力充沛状态与空间聚集之间的关系。我们的结果是第一个将垂体后叶神经肽牵涉到鳞状爬行动物的产妇行为调节中，并且与假想在脊椎动物中广泛保留社会行为的神经内分泌机制这一假设相一致。

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