Cited by 174Gut microbiota and healthAlcohol Consumption and Health EffectsGastrointestinal motility and disorders

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Intestinal permeability, microbial translocation, changes in duodenal and fecal microbiota, and their associations with alcoholic liver disease progression in humans

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Abstract

Background Animal data suggest a role of the gut-liver axis in progression of alcoholic liver disease (ALD), but human data are scarce especially for early disease stages.Methods We included patients with alcohol use disorder (AUD) who follow a rehabilitation program and matched healthy controls. We determined intestinal epithelial and vascular permeability (IP) (using urinary excretion of 51Cr-EDTA, fecal albumin content, and immunohistochemistry in distal duodenal biopsies), epithelial damage (histology, serum iFABP, and intestinal gene expression), and microbial translocation (Gram – and Gram + serum markers by ELISA). Duodenal mucosa-associated microbiota and fecal microbiota were analyzed by 16 S rRNA sequencing. ALD was staged by Fibroscan® (liver stiffness, controlled attenuation parameter) in combination with serum AST, ALT, and CK18-M65.Results Only a subset of AUD patients had increased 51Cr-EDTA and fecal albumin together with disrupted tight junctions and vasculature expression of plasmalemma Vesicle-Associated Protein-1. The so-defined increased intestinal permeability was not related to changes of the duodenal microbiota or alterations of the intestinal epithelium but associated with compositional changes of the fecal microbiota. Leaky gut alone did not explain increased microbial translocation in AUD patients. By contrast, duodenal dysbiosis with a dominance shift toward specific potential pathogenic bacteria genera (Streptococcus, Shuttleworthia, Rothia), increased IP and elevated markers of microbial translocation characterized AUD patients with progressive ALD (steato-hepatitis, steato-fibrosis).Conclusion Progressive ALD already at early disease stages is associated with duodenal mucosa-associated dysbiosis and elevated microbial translocation. Surprisingly, such modifications were not linked with increased IP. Rather, increased IP appears related to fecal microbiota dysbiosis.

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Crossref · 10.1080/19490976.2020.1782157

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Figures

Figure 1. Standardized working scheme of the alcohol withdrawal unit.
Figure 1. Standardized working scheme of the alcohol withdrawal unit.CC BY-NC-ND · PubMed Central
Figure 2. Serum cytokeratin 18 (CK18-M65) as a surrogate marker of liver damage.
Figure 2. Serum cytokeratin 18 (CK18-M65) as a surrogate marker of liver damage.CC BY-NC-ND · PubMed Central
Figure 3. Assessment of intestinal permeability (IP), morphological features of the duodenal mucosa, enterocyte damage and microbial translocation.
Figure 3. Assessment of intestinal permeability (IP), morphological features of the duodenal mucosa, enterocyte damage and microbial translocation.CC BY-NC-ND · PubMed Central
Figure 4. Assessment of intestinal permeability (IP) in relation to histological features.
Figure 4. Assessment of intestinal permeability (IP) in relation to histological features.CC BY-NC-ND · PubMed Central
Figure 5. Assessment of serum microbial translocation markers in relation to intestinal permeability (IP).
Figure 5. Assessment of serum microbial translocation markers in relation to intestinal permeability (IP).CC BY-NC-ND · PubMed Central
Figure 6. Evaluation of immune cells and inflammatory markers in the duodenum of alcohol use disorder (AUD) patients.
Figure 6. Evaluation of immune cells and inflammatory markers in the duodenum of alcohol use disorder (AUD) patients.CC BY-NC-ND · PubMed Central
Figure 7. Evaluation of duodenal mucosa-associated microbiota in relation to intestinal permeability (IP).
Figure 7. Evaluation of duodenal mucosa-associated microbiota in relation to intestinal permeability (IP).CC BY-NC-ND · PubMed Central
Figure 8. Fecal microbiota assessment in AUD patients in relation to intestinal permeability (IP).
Figure 8. Fecal microbiota assessment in AUD patients in relation to intestinal permeability (IP).CC BY-NC-ND · PubMed Central
Figure 9. Relationship between intestinal permeability (IP), microbial translocation and stage of alcoholic liver disease (ALD).
Figure 9. Relationship between intestinal permeability (IP), microbial translocation and stage of alcoholic liver disease (ALD).CC BY-NC-ND · PubMed Central
Figure 10. Analysis of the duodenal mucosa-associated microbiota and fecal microbiota in relation to alcoholic liver disease (ALD) severity.
Figure 10. Analysis of the duodenal mucosa-associated microbiota and fecal microbiota in relation to alcoholic liver disease (ALD) severity.CC BY-NC-ND · PubMed Central
Figure 11. Impact of short time of abstinence on intestinal permeability (IP), microbial translocation, liver damage and microbiota composition.
Figure 11. Impact of short time of abstinence on intestinal permeability (IP), microbial translocation, liver damage and microbiota composition.CC BY-NC-ND · PubMed Central

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  1. Tabakoff B, 2000, Alcohol Res Heal, 24, 77
  2. 10.1016/j.cld.2012.08.002.ALCOHOL · DOI

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Metadata

Authors
Maccioni, L., Gao, B., Leclercq, S., Pirlot, B., Horsmans, Y., De Timary, P., Leclercq, I., Fouts, D., Schnabl, B., & Stärkel, P.
Affiliations
  • UCLouvain (BE)
  • University of California San Diego (US)
  • Cliniques Universitaires Saint-Luc (BE)
  • Department of Adult Psychiatry, Cliniques Universitaires Saint-Luc, Brussels, Belgium
  • J. Craig Venter Institute (US)
Corresponding author
Stärkel, Peter
Venue
Gut Microbes
Published
2020-06-26
Volume
12
Issue
1
Pages
1782157
ISSN
  • 1949-0976 (ISSN-L)
  • 1949-0984
OpenAlex
W3037663071
Cited by
174
References
58
Citations by year
2026: 25 · 2025: 33 · 2024: 31 · 2023: 29 · 2022: 27 · 2021: 22 · 2020: 7
FWCI
6.86
Type
journal article
Language
en
Open access
Locations
  • Gut Microbes (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Fonds De La Recherche Scientifique - FNRS (J.0146.17, T.0217.18)
  • National Institutes of Health (U01 AA026939, R01 AA24726)
  • Université Catholique de Louvain (ARC 2018)
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 › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
alcoholic liver disease, alcoholism, intestinal permeability, leaky gut, microbial translocation, gut-liver axis, duodenal microbiota, duodenal mucosa, tight junctions, intestinal epithelial damage, Streptococcus, Shuttleworthia, Rothia, liver fibrosis, steatohepatitis
MeSH terms
Gastrointestinal Microbiome, Adult, Alcoholism, Bacteria, Capillary Permeability, Duodenum, Feces, Female, Humans, Intestinal Mucosa, Liver, Liver Diseases, Alcoholic, Male, Middle Aged, RNA, Ribosomal, 16S, Dysbiosis

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