Layers of signals that regulate appetite.

Layers of signals that regulate appetite.
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DOI:
10.1016/j.conb.2020.03.007
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发表时间:
2020-10
影响因子:
5.7
通讯作者:
Knight ZA
Knight ZA
中科院分区:
医学2区
文献类型:
--
作者:
Zimmerman CA;Knight ZA

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所有的饭菜都要结束了。这是因为吃和喝会产生反馈信号,这些信号会向大脑传达摄入了什么和多少。在这里,我们回顾了我们目前对这些反馈信号如何调节食欲的理解。我们首先描述了通过手术操作胃肠道并测量其对行为的影响的经典研究。然后,我们重点介绍最近的实验,这些实验使用体内神经记录来直接观察摄取如何调节大脑中的电路动力学。从这项研究中得出的一个总体主题是,吃和喝会产生层层反馈信号,这些反馈信号依次来自身体的不同组织,这些反馈信号会聚在前脑中的单个神经元上,以调节饥饿和口渴。
All meals come to an end. This is because eating and drinking generate feedback signals that communicate to the brain what and how much has been consumed. Here we review our current understanding of how these feedback signals regulate appetite. We first describe classic studies that surgically manipulated the gastrointestinal tract and measured the effects on behavior. We then highlight recent experiments that have used in vivo neural recordings to directly observe how ingestion modulates circuit dynamics in the brain. A general theme emerging from this work is that eating and drinking generate layers of feedback signals, arising sequentially from different tissues in the body, that converge on individual neurons in the forebrain to regulate hunger and thirst.
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