Cited by 110Gut microbiota and healthGastrointestinal motility and disordersAnimal Nutrition and Physiology

Healthy hosts rule within: ecological forces shaping the gut microbiota

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Byndloss, Mariana X., Pernitzsch, Sandy R., Bäumler, Andreas J.·2018·Mucosal Immunology

Abstract

A balanced gut microbiota is important for human health, but the mechanisms that maintain homeostasis are incompletely understood. Recent insights suggest the host plays a key role in shaping its gut microbiota to be beneficial. While host control in the small intestine curbs bacterial numbers to avoid competition for simple sugars and amino acids, the host limits oxygen availability in the large intestine to obtain microbial fermentation products from fiber. Epithelial cells are major players in imposing ecological control mechanisms, which involves the release of antimicrobial peptides by small-intestinal Paneth cells and maintenance of luminal anaerobiosis by epithelial hypoxia in the colon. Harnessing these epithelial control mechanisms for therapeutic means could provide a novel lynchpin for strategies to remediate dysbiosis.

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  • Oxygen availability during inflammation drives dysbiosis by favoring Enterobacteriaceae expansion through respiration.

    “For example, the availability of oxygen during inflammation drives a disruption, or dysbiosis, of the microbiota by favoring Enterobacteriaceae expansion through respiration (Byndloss et al., 2018).”

    From The Impact of Dietary Transition Metals on Host-Bacterial Interactions (2018) · cites this paper as Byndloss et al., 2018

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Authors
Byndloss, M. X., Pernitzsch, S. R., & Bäumler, A. J.
Affiliations
University of California, Davis (US)
Corresponding author
Bäumler, Andreas J.
Venue
Mucosal Immunology
Publisher
Elsevier BV
Published
2018-09
Volume
11
Issue
5
Pages
1299-1305
ISSN
1933-0219 (ISSN-L)
OpenAlex
W2800529903
Cited by
109
References
106
Citations by year
2026: 4 · 2025: 11 · 2024: 17 · 2023: 13 · 2022: 8 · 2021: 20 · 2020: 16 · 2019: 16 · 2018: 4
FWCI
1.37
Type
journal article
Language
en
Open access
Locations
  • Mucosal Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
gut microbiota, host-microbe interactions, microbial homeostasis, Paneth cells, antimicrobial peptides, dietary fiber fermentation, small intestine, large intestine, dysbiosis
MeSH terms
Gastrointestinal Microbiome, Host Microbial Interactions, Animals, Ecology, Epithelial Cells, Homeostasis, Humans, Intestinal Mucosa, Intestines, Microbiota

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