Glucagon-like peptide-1 (GLP-1) in the integration of neural and endocrine responses to stress
UNIVERSAL IDENTIFIER: http://hdl.handle.net/11093/1806
EDITED VERSION: https://www.mdpi.com/2072-6643/12/11/3304
UNESCO SUBJECT: 2411.04 Fisiología Endocrina ; 2411.12 Fisiología del Sistema Nervioso Central ; 2490.01 Neurofisiología
DOCUMENT TYPE: article
Glucagon like-peptide 1 (GLP-1) within the brain is produced by a population of preproglucagon neurons located in the caudal nucleus of the solitary tract. These neurons project to the hypothalamus and another forebrain, hindbrain, and mesolimbic brain areas control the autonomic function, feeding, and the motivation to feed or regulate the stress response and the hypothalamic-pituitary-adrenal axis. GLP-1 receptor (GLP-1R) controls both food intake and feeding behavior (hunger-driven feeding, the hedonic value of food, and food motivation). The activation of GLP-1 receptors involves second messenger pathways and ionic events in the autonomic nervous system, which are very relevant to explain the essential central actions of GLP-1 as neuromodulator coordinating food intake in response to a physiological and stress-related stimulus to maintain homeostasis. Alterations in GLP-1 signaling associated with obesity or chronic stress induce the dysregulation of eating behavior. This review summarized the experimental shreds of evidence from studies using GLP-1R agonists to describe the neural and endocrine integration of stress responses and feeding behavior.
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