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Interactions between the microbiota and enteric nervous system during gut-brain disorders

Abstract : For the last 20 years, researchers have focused their intention on the impact of gut microbiota in healthy and pathological conditions. This year (2021), more than 25,000 articles can be retrieved from PubMed with the keywords "gut microbiota and physiology", showing the constant progress and impact of gut microbes in scientific life. As a result, numerous therapeutic perspectives have been proposed to modulate the gut microbiota composition and/or bioactive factors released from microbes to restore our body functions. Currently, the gut is considered a primary site for the development of pathologies that modify brain functions such as neurodegenerative (Parkinson's, Alzheimer's, etc.) and metabolic (type 2 diabetes, obesity, etc.) disorders. Deciphering the mode of interaction between microbiota and the brain is a real original option to prevent (and maybe treat in the future) the establishment of gut-brain pathologies. The objective of this review is to describe recent scientific elements that explore the communication between gut microbiota and the brain by focusing our interest on the enteric nervous system (ENS) as an intermediate partner. The ENS, which is known as the "second brain", could be under the direct or indirect influence of the gut microbiota and its released factors (short-chain fatty acids, neurotransmitters, gaseous factors, etc.). Thus, in addition to their actions on tissue (adipose tissue, liver, brain, etc.), microbes can have an impact on local ENS activity. This potential modification of ENS function has global repercussions in the whole body via the gut-brain axis and represents a new therapeutic strategy.
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https://hal.inrae.fr/hal-03331892
Contributor : Nathalie Seguin <>
Submitted on : Thursday, September 2, 2021 - 11:29:46 AM
Last modification on : Friday, September 3, 2021 - 3:38:56 AM

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Steven Fried, Eve Wemelle, Patrice Cani, Claude Knauf. Interactions between the microbiota and enteric nervous system during gut-brain disorders. Neuropharmacology, Elsevier, 2021, 197 (108721), 14 p. ⟨10.1016/j.neuropharm.2021.108721⟩. ⟨hal-03331892⟩

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