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首页> 外文期刊>Canadian Journal of Zoology >Melatonin and thermoregulation in ectothermic vertebrates: a review [Review]
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Melatonin and thermoregulation in ectothermic vertebrates: a review [Review]

机译：褪黑激素和温度调节在外热脊椎动物中的研究[综述]

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摘要

Precise behavioral thermoregulation is well documented in many ectothermic vertebrates. However, many complexities involving the influence of the pineal gland and melatonin (MEL) on thermoregulatory behavior, and thus body temperature (T-b), remain unresolved. Although MEL is commonly considered to decrease T-b in both endotherms and ectotherms, several ectothermic species do not modulate T-b in response to MEL. Furthermore, it is not yet clear how MEL integrates thermoregulatory behavior with environmental stimuli or how it modulates T-b. Some inferences about MEL action in endotherms are not applicable to ectotherms. Changes in ectothermic T-b are mediated primarily through behavioral modulation (not physiological modulation as in endotherms). Thus, the most likely mechanism underlying MEL's actions on ectothermic T-b is adjustment of the temperature set point in the hypothalamus. We provide a review of the literature addressing the effects of MEL on thermoregulatory behavior in ectothermic vertebrates. We also discuss mechanisms underlying MEL's influence on physiological and behavioral processes in ectotherms and hypotheses regarding interspecific differences in pineal complex and MEL function.
机译：精确的行为温度调节已在许多外热脊椎动物中得到了充分证明。但是，涉及松果体和褪黑激素（MEL）对体温调节行为以及体温（T-b）的影响的许多复杂性仍未解决。尽管人们通常认为MEL会降低吸热和放热中的T-b，但一些放热物种不会响应MEL来调节T-b。此外，尚不清楚MEL如何将温度调节行为与环境刺激相结合或如何调节T-b。关于MEL在吸热中作用的一些推论不适用于等温线。体外T-b的变化主要通过行为调节（而不是像吸热那样的生理调节）介导。因此，MEL对等温T-b作用的最可能机制是下丘脑温度设定点的调节。我们提供了文献综述，探讨了MEL对外热脊椎动物体温调节行为的影响。我们还将讨论MEL对等温线的生理和行为过程的影响的机制，以及关于松果体复合体和MEL功能的种间差异的假设。

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