Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity

Gut-brain signaling controls food intake and energy homeostasis, and its activity is thought to be dysregulated in obesity. We will explore new studies that suggest the endocannabinoid (eCB) system in the upper gastrointestinal tract plays an important role in controlling gut-brain neurotransmission...

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Main Author: Nicholas V. DiPatrizio
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/13/4/1214
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author Nicholas V. DiPatrizio
author_facet Nicholas V. DiPatrizio
author_sort Nicholas V. DiPatrizio
collection DOAJ
description Gut-brain signaling controls food intake and energy homeostasis, and its activity is thought to be dysregulated in obesity. We will explore new studies that suggest the endocannabinoid (eCB) system in the upper gastrointestinal tract plays an important role in controlling gut-brain neurotransmission carried by the vagus nerve and the intake of palatable food and other reinforcers. A focus will be on studies that reveal both indirect and direct interactions between eCB signaling and vagal afferent neurons. These investigations identify (<i>i</i>) an indirect mechanism that controls nutrient-induced release of peptides from the gut epithelium that directly interact with corresponding receptors on vagal afferent neurons, and (<i>ii</i>) a direct mechanism via interactions between eCBs and cannabinoid receptors expressed on vagal afferent neurons. Moreover, the impact of diet-induced obesity on these pathways will be considered.
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spelling doaj.art-5c2fff0fb2224ab18e16aa7090ee975d2023-11-21T14:28:54ZengMDPI AGNutrients2072-66432021-04-01134121410.3390/nu13041214Endocannabinoids and the Gut-Brain Control of Food Intake and ObesityNicholas V. DiPatrizio0Division of Biomedical Sciences, School of Medicine, University of California Riverside, Riverside, CA 92521, USAGut-brain signaling controls food intake and energy homeostasis, and its activity is thought to be dysregulated in obesity. We will explore new studies that suggest the endocannabinoid (eCB) system in the upper gastrointestinal tract plays an important role in controlling gut-brain neurotransmission carried by the vagus nerve and the intake of palatable food and other reinforcers. A focus will be on studies that reveal both indirect and direct interactions between eCB signaling and vagal afferent neurons. These investigations identify (<i>i</i>) an indirect mechanism that controls nutrient-induced release of peptides from the gut epithelium that directly interact with corresponding receptors on vagal afferent neurons, and (<i>ii</i>) a direct mechanism via interactions between eCBs and cannabinoid receptors expressed on vagal afferent neurons. Moreover, the impact of diet-induced obesity on these pathways will be considered.https://www.mdpi.com/2072-6643/13/4/1214endocannabinoidCB<sub>1</sub> receptorgut-brainintestinefood intakereward
spellingShingle Nicholas V. DiPatrizio
Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
Nutrients
endocannabinoid
CB<sub>1</sub> receptor
gut-brain
intestine
food intake
reward
title Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
title_full Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
title_fullStr Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
title_full_unstemmed Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
title_short Endocannabinoids and the Gut-Brain Control of Food Intake and Obesity
title_sort endocannabinoids and the gut brain control of food intake and obesity
topic endocannabinoid
CB<sub>1</sub> receptor
gut-brain
intestine
food intake
reward
url https://www.mdpi.com/2072-6643/13/4/1214
work_keys_str_mv AT nicholasvdipatrizio endocannabinoidsandthegutbraincontroloffoodintakeandobesity