Cited by 496Gastrointestinal motility and disordersGut microbiota and healthInfant Health and Development

Brain gut microbiome interactions and functional bowel disorders

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Mayer, Emeran A., Savidge, Tor, Shulman, Robert J.·2014·Gastroenterology

Abstract

Alterations in the bidirectional interactions between the intestine and the nervous system have important roles in the pathogenesis of irritable bowel syndrome (IBS). A body of largely preclinical evidence suggests that the gut microbiota can modulate these interactions. A small and poorly defined role for dysbiosis in the development of IBS symptoms has been established through characterization of altered intestinal microbiota in IBS patients and reported improvement of subjective symptoms after its manipulation with prebiotics, probiotics, or antibiotics. It remains to be determined whether IBS symptoms are caused by alterations in brain signaling from the intestine to the microbiota or primary disruption of the microbiota, and whether they are involved in altered interactions between the brain and intestine during development. We review the potential mechanisms involved in the pathogenesis of IBS in different groups of patients. Studies are needed to better characterize alterations to the intestinal microbiome in large cohorts of well-phenotyped patients, and to correlate intestinal metabolites with specific abnormalities in gut-brain interactions.

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Crossref · 10.1053/j.gastro.2014.02.037

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  • Both neural (vagus) and hormonal (HPA axis) lines of communication combine to allow the brain to influence the activities of intestinal functional effector cells, such as immune cells, epithelial cells, enteric neurons, smooth muscle cells, interstitial cells of Cajal, and enterochromaffin cells.

    “Both neural (vagus) and hormonal (HPA axis) lines of communication combine to allow brain to influence the activities of intestinal functional effector cells, such as immune cells, epithelial cells, enteric neurons, smooth muscle cells, interstitial cells of Cajal, and enterochromaffin cells (32).”
  • Mechanistic data mainly from animal studies highlight that probiotics exert a direct antinociceptive action through modulation of bacterial metabolites production on sensitive nerve endings in the gut mucosa.

    “Mechanistic data provided mainly by animal studies highlight that probiotics exert a direct antinociceptive action through the modulation of bacterial metabolites production (i.e., neurotransmitters, neuroactive substances including GABA and serotonin) on sensitive nerve endings in the gut mucosa [2631,130]”

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Authors
Mayer, E. A., Savidge, T., & Shulman, R. J.
Affiliations
  • University of California, Los Angeles (US)
  • Baylor College of Medicine (US)
Corresponding author
Mayer, Emeran A.
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2014-05
Volume
146
Issue
6
Pages
1500-1512
ISSN
0016-5085 (ISSN-L)
OpenAlex
W2014965759
Cited by
496
References
146
Citations by year
2026: 23 · 2025: 38 · 2024: 36 · 2023: 39 · 2022: 55 · 2021: 50 · 2020: 48 · 2019: 48 · 2018: 42 · 2017: 39 · 2016: 31 · 2015: 37 · 2014: 10
FWCI
6.37
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health (DK 64531, DK 48351)
  • National Institute of Nursing Research (13497, AI100914, DK56338)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Health Professions › Pharmacy › Infant Health and Development
Keywords
gut-brain axis, gut microbiota, irritable bowel syndrome, dysbiosis, functional bowel disorders, prebiotics, probiotics, antibiotics, intestinal metabolites, pathogenesis
MeSH terms
Animals, Anti-Inflammatory Agents, Anti-Bacterial Agents, Bacteria, Brain, Humans, Intestinal Mucosa, Intestines, Neural Pathways, Inflammatory Bowel Diseases, Signal Transduction, Probiotics, Host-Pathogen Interactions, Microbiota, Dysbiosis

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