Moving beyond energy homeostasis: new roles for glucagon-like peptide-1 in food and drug reward.

Reddy IA, Stanwood GD, Galli A
Neurochem Int. 2014 73: 49-55

PMID: 24140429 · PMCID: PMC4120871 · DOI:10.1016/j.neuint.2013.10.003

Glucagon-like peptide-1 (GLP-1), a hormone and neuropeptide, is known to regulate energy homeostasis in part through an established central role in controlling food intake. Historically this central role has largely been attributed to GLP-1 receptor signaling in the brainstem and hypothalamus. However, emerging data indicate that GLP-1 also contributes to non-homeostatic regulation of food reward and motivated behaviors in brain reward centers, including the ventral tegmental area and nucleus accumbens. The hypothesis that GLP-1 signaling modulates reward circuitry has provided the impetus for studies demonstrating that GLP-1 attenuates reward for psychostimulants and alcohol. Here, we examine current evidence for GLP-1-mediated regulation of food and drug reward and use these findings to hypothesize mechanisms of action within brain reward centers.

Copyright © 2013 Elsevier Ltd. All rights reserved.

MeSH Terms (10)

Animals Dopamine Eating Energy Metabolism Glucagon-Like Peptide 1 Homeostasis Humans Obesity Reward Substance-Related Disorders

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