Neuropeptides and amphibian prey-catching behavior
Neuropeptides and amphibian prey-catching behavior
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DOI：
10.1016/s1096-4959(01)00545-0
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发表时间：
2002-05-01
影响因子：
2.2
通讯作者：
Venkatesan, S
中科院分区：
文献类型：
--
作者：
Carr, JA;Brown, CL;Venkatesan, S
在哺乳动物中，许多下丘脑神经肽与应激诱导的摄食障碍有关。最近的研究表明，在无尾类动物的应激相关的神经肽可能对视觉控制的基本方面，以调节进食。促肾上腺皮质激素释放激素（CRH）和α-黑素细胞刺激激素，哺乳动物中的强效促肾上腺皮质激素肽，抑制蟾蜍视觉引导的捕食。神经肽Y（neuropeptide Y，NPY）是哺乳动物体内的一种神经肽，可能是一种重要的神经调质，参与识别捕食者和被捕食者的抑制性顶盖前-顶盖通路。黑素皮质素、神经肽Y和CRH神经元投射到两栖动物脑内的关键视觉结构上，这表明它们在捕食调节中的生理作用。因此，在哺乳动物中，参与摄食行为的神经肽影响视觉刺激在释放捕食行为中的功效。这些神经肽可能在青蛙和蟾蜍如何收集和处理视觉信息方面发挥重要作用，特别是在压力下。(C)2002年爱思唯尔科技有限公司All rights reserved.
In mammals, a number of hypothalamic neuropeptides have been implicated in stress-induced feeding disorders. Recent studies in anurans suggest that stress-related neuropeptides may act on elemental aspects of visuomotor control to regulate feeding. Corticotropin-releasing hormone (CRH) and alpha-melanocyte-stimulating hormone, potent anorexic peptides in mammals, inhibit visually-guided prey-catching in toads. Neuropeptide Y (NPY), anorexic peptide in mammals, may be an important neuromodulator in inhibitory pre-tectal-tectal pathways involved in distinguishing predator and prey. Melanocortin, NPY and CRH neurons project onto key visuomotor structures within the amphibian brain, suggesting physiological roles in the modulation of prey-catching. Thus, neuropeptides involved in feeding behavior in mammals influence the efficacy of a visual stimulus in releasing prey-catching behavior. These neuropeptides may play an important role in how frogs and toads gather and process visual information, particularly during stress. (C) 2002 Elsevier Science Inc. All rights reserved.