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Cell Host Microbe. 2015 May 13;17(5):565-76. doi: 10.1016/j.chom.2015.04.011.

Control of brain development, function, and behavior by the microbiome.

Author information

1
Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
2
Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA. Electronic address: sarkis@caltech.edu.

Abstract

Animals share an intimate and life-long partnership with a myriad of resident microbial species, collectively referred to as the microbiota. Symbiotic microbes have been shown to regulate nutrition and metabolism and are critical for the development and function of the immune system. More recently, studies have suggested that gut bacteria can impact neurological outcomes--altering behavior and potentially affecting the onset and/or severity of nervous system disorders. In this review, we highlight emerging evidence that the microbiome extends its influence to the brain via various pathways connecting the gut to the central nervous system. While understanding and appreciation of a gut microbial impact on neurological function is nascent, unraveling gut-microbiome-brain connections holds the promise of transforming the neurosciences and revealing potentially novel etiologies for psychiatric and neurodegenerative disorders.

PMID:
25974299
PMCID:
PMC4442490
DOI:
10.1016/j.chom.2015.04.011
[Indexed for MEDLINE]
Free PMC Article

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