Cited by 775Gut microbiota and healthAlcohol Consumption and Health EffectsOral microbiology and periodontitis research

Colonic microbiome is altered in alcoholism

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Mutlu, Ece A., Gillevet, Patrick M., Rangwala, Huzefa, Sikaroodi, Masoumeh, Naqvi, Ammar, Engen, Phillip A., Kwasny, Mary, Lau, Cynthia K. +1 more·2012·American Journal of Physiology-Gastrointestinal and Liver Physiology

Abstract

Several studies indicate the importance of colonic microbiota in metabolic and inflammatory disorders and importance of diet on microbiota composition. The effects of alcohol, one of the prominent components of diet, on colonic bacterial composition is largely unknown. Mounting evidence suggests that gut-derived bacterial endotoxins are cofactors for alcohol-induced tissue injury and organ failure like alcoholic liver disease (ALD) that only occur in a subset of alcoholics. We hypothesized that chronic alcohol consumption results in alterations of the gut microbiome in a subgroup of alcoholics, and this may be responsible for the observed inflammatory state and endotoxemia in alcoholics. Thus we interrogated the mucosa-associated colonic microbiome in 48 alcoholics with and without ALD as well as 18 healthy subjects. Colonic biopsy samples from subjects were analyzed for microbiota composition using length heterogeneity PCR fingerprinting and multitag pyrosequencing. A subgroup of alcoholics have an altered colonic microbiome (dysbiosis). The alcoholics with dysbiosis had lower median abundances of Bacteroidetes and higher ones of Proteobacteria. The observed alterations appear to correlate with high levels of serum endotoxin in a subset of the samples. Network topology analysis indicated that alcohol use is correlated with decreased connectivity of the microbial network, and this alteration is seen even after an extended period of sobriety. We show that the colonic mucosa-associated bacterial microbiome is altered in a subset of alcoholics. The altered microbiota composition is persistent and correlates with endotoxemia in a subgroup of alcoholics.

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Crossref · 10.1152/ajpgi.00380.2011

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  1. [12]12. Gillevet PM. Compositions and Methods for Diagnosing Colon Disorders, PCT/US05/39887. PCT/USPTO: George Mason University, 2005 [Google Scholar]
  2. [13]13. Gillevet PM. Multitag Sequencing and Ecogenomic Analysis, EPO 07871488.8, PCT/US2007/084840. WPO: BioSpherex, 2006 [Google Scholar]
  3. [31]31. Rimola A. Infections in liver disease. Oxford, England: Oxford University Press, 1991 [Google Scholar]

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Authors
Mutlu, E. A., Gillevet, P. M., Rangwala, H., Sikaroodi, M., Naqvi, A., Engen, P. A., Kwasny, M., Lau, C. K., & Keshavarzian, A.
Affiliations
  • Rush University Medical Center (US)
  • George Mason University (US)
  • Northwestern University (US)
Corresponding author
Keshavarzian, Ali
Venue
American Journal of Physiology-Gastrointestinal and Liver Physiology
Published
2012-05-01
Volume
302
Issue
9
Pages
G966-G978
ISSN
  • 0193-1857 (ISSN-L)
  • 1522-1547
OpenAlex
W1977429705
Cited by
775
References
37
Citations by year
2026: 34 · 2025: 55 · 2024: 69 · 2023: 67 · 2022: 79 · 2021: 83 · 2020: 81 · 2019: 66 · 2018: 60 · 2017: 57 · 2016: 36 · 2015: 39 · 2014: 22 · 2013: 22 · 2012: 4
FWCI
11.19
Type
journal article
Language
en
Open access
Locations
  • American Journal of Physiology-Gastrointestinal and Liver Physiology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Rush University
  • National Institutes of Health (5r01aa013745-05)
  • National Institute on Alcohol Abuse and Alcoholism (R01-AA 013745, RC2AA019405)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R21DK071838, 1R43DK-074275, R43DK074275)
  • National Center for Complementary and Integrative Health (R21AT001628)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
colonic microbiome, alcoholism, alcoholic liver disease, dysbiosis, endotoxemia, gut-derived endotoxin, Bacteroidetes, Proteobacteria, microbial network topology, colonic mucosa, chronic alcohol consumption, alcohol abstinence
MeSH terms
Adult, Aged, Alcoholism, Colon, Female, Humans, Liver Diseases, Alcoholic, Middle Aged, Metagenome

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