Cited by 271Gastrointestinal motility and disordersGut microbiota and healthInflammatory Bowel Disease

Rifaximin Alters Intestinal Bacteria and Prevents Stress-Induced Gut Inflammation and Visceral Hyperalgesia in Rats

Open access
Xu, Dabo, Gao, Jun, Gillilland, Merritt, Wu, Xiaoyin, Song, Il, Kao, John Y., Owyang, Chung·2014·Gastroenterology

Abstract

Background & aims Rifaximin is used to treat patients with functional gastrointestinal disorders, but little is known about its therapeutic mechanism. We propose that rifaximin modulates the ileal bacterial community, reduces subclinical inflammation of the intestinal mucosa, and improves gut barrier function to reduce visceral hypersensitivity.Methods We induced visceral hyperalgesia in rats, via chronic water avoidance or repeat restraint stressors, and investigated whether rifaximin altered the gut microbiota, prevented intestinal inflammation, and improved gut barrier function. Quantitative polymerase chain reaction (PCR) and 454 pyrosequencing were used to analyze bacterial 16S ribosomal RNA in ileal contents from the rats. Reverse transcription, immunoblot, and histologic analyses were used to evaluate levels of cytokines, the tight junction protein occludin, and mucosal inflammation, respectively. Intestinal permeability and rectal sensitivity were measured.Results Water avoidance and repeat restraint stress each led to visceral hyperalgesia, accompanied by mucosal inflammation and impaired mucosal barrier function. Oral rifaximin altered the composition of bacterial communities in the ileum (Lactobacillus species became the most abundant) and prevented mucosal inflammation, impairment to intestinal barrier function, and visceral hyperalgesia in response to chronic stress. Neomycin also changed the composition of the ileal bacterial community (Proteobacteria became the most abundant species). Neomycin did not prevent intestinal inflammation or induction of visceral hyperalgesia induced by water avoidance stress.Conclusions Rifaximin alters the bacterial population in the ileum of rats, leading to a relative abundance of Lactobacillus. These changes prevent intestinal abnormalities and visceral hyperalgesia in response to chronic psychological stress.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1053/j.gastro.2013.10.026

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Several studies linking the gut microbiota with visceral sensitivity have shown that increments in the Lactobacilli family are associated to visceral analgesic-like states.

    “Moreover, several studies linking the gut microbiota with visceral sensitivity, have shown that increments in the Lactobacilli family (during probiotic treatment or during states of dysbiosis) are associated to visceral analgesic-like states.18,19,21,33”
  • Rifaximin treatment protected against intestinal inflammation, barrier damage, and visceral hypersensitivity caused by chronic water avoidance and repeat restraint stressors in Wistar rats.

    “Moreover, rifaximin treatment protected against the intestinal inflammation, barrier damage, and visceral hypersensitivity caused by chronic water avoidance and repeat restraint stressors in Wistar rats (135).”
  • Lactobacillus species were significantly enriched after oral administration of rifaximin.

    “A study found that Lactobacillus species were significantly enriched after oral administration of rifaximin.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 47 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Xu, D., Gao, J., Gillilland, M., Wu, X., Song, I., Kao, J. Y., & Owyang, C.
Affiliations
University of Michigan (US)
Corresponding author
Owyang, Chung
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2014-02
Volume
146
Issue
2
Pages
484-496.e4
ISSN
0016-5085 (ISSN-L)
OpenAlex
W2125894152
Cited by
271
References
47
Citations by year
2026: 12 · 2025: 17 · 2024: 15 · 2023: 26 · 2022: 21 · 2021: 30 · 2020: 11 · 2019: 22 · 2018: 27 · 2017: 30 · 2016: 24 · 2015: 21 · 2014: 15
FWCI
18.86
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (P30DK34933, R01DK058913)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
Keywords
rifaximin, gut microbiota, visceral hypersensitivity, intestinal barrier function, Lactobacillus, neomycin, chronic psychological stress, water avoidance stress, occludin, intestinal permeability, rectal sensitivity, functional gastrointestinal disorders
MeSH terms
Rifaximin, Administration, Oral, Animals, DNA, Bacterial, Drug Administration Schedule, Gastrointestinal Agents, Hyperalgesia, Ileitis, Ileum, Immunohistochemistry, Intestinal Mucosa, Male, Neomycin, Restraint, Physical, Rifamycins, Stress, Psychological, Blotting, Western, Biomarkers, Cytokines, Rats, Wistar, Sequence Analysis, DNA, Reverse Transcriptase Polymerase Chain Reaction, Rats, Occludin, Microbiota

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review