Evidence map›Paper›PMID 26173414›Full record

ArticleAlcoholism, clinical and experimental research2015

ALDH2 Deficiency Promotes Ethanol-Induced Gut Barrier Dysfunction and Fatty Liver in Mice.

Kamaljit K Chaudhry, Geetha Samak, Pradeep K Shukla, Hina Mir, Ruchika Gangwar, Bhargavi Manda, Toyohi Isse, Toshihiro Kawamoto, Mikko Salaspuro, Pertti Kaihovaara and 4 more

Abstract read
In one paragraph

Article in Alcoholism, clinical and experimental research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 57 citations in OpenAlex.

  1. c-Jun N-Terminal Kinase-2 Mediates Alcohol and Corticosterone-Induced Tissue Injury at the Gut-Liver Axis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
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  13. International journal of general medicine · 2022
    Article
  14. Article
  15. Current View on the Mechanisms of Alcohol-Mediated Toxicity.International journal of molecular sciences · 2021
    Review
  16. Article
  17. Pathophysiological Aspects of Alcohol Metabolism in the Liver.International journal of molecular sciences · 2021
    Review
  18. Review
  19. Role of ALDH2 in Hepatic Disorders: Gene Polymorphism and Disease Pathogenesis.Journal of clinical and translational hepatology · 2021
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 3 countries.

Kamaljit K ChaudhryDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Geetha SamakDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Pradeep K ShuklaDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Hina MirDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Ruchika GangwarDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Bhargavi MandaDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Toyohi IsseUniversity of Occupational and Environmental Health , Kitakyushu, Japan.
Toshihiro KawamotoUniversity of Occupational and Environmental Health , Kitakyushu, Japan.
Mikko SalaspuroRes Unit Acetaldehyde and Cancer, University of Helsinki, Helsinki, Finland.
Pertti KaihovaaraRes Unit Acetaldehyde and Cancer, University of Helsinki, Helsinki, Finland.
Paula DietrichDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Ioannis DragatsisDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
Laura E NagyCleveland Clinic Foundation , Cleveland, Ohio.
Radha Krishna RaoDepartment of Physiology , University of Tennessee, Memphis, Tennessee.
University of Tennessee Health Science Center · USUniversity of Helsinki · FIUniversity of Occupational and Environmental Health Japan · JPCleveland Clinic · US

Funding

INTESTINAL MUCOSAL PROTECTION BY EPIDERMAL GROWTH FACTORR01DK055532 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI RAO, RADHAKRISHNA · 1998 to 2020
$4.7M
MECHANISM OF ENDOTOXIN ABSORPTION IN ALCOHOLISMR01AA012307 · NIAAA · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI RAO, RADHAKRISHNA · 2000 to 2014
$3.9M
Pilot ProjectP20AA017837 · NIAAA · CLEVELAND CLINIC LERNER COM-CWRU · PI NAGY, LAURA E. · 2009 to 2013
$2.2M
Heme oxygenase-1 and alcoholic liver diseaseR01AA019673 · NIAAA · CLEVELAND CLINIC LERNER COM-CWRU · PI NAGY, LAURA E. · 2011 to 2015
$1.7M
Novel therapeutics for alcoholic hepatitis - Cleveland Translational ComponentU01AA021890 · NIAAA · CLEVELAND CLINIC LERNER COM-CWRU · PI NAGY, LAURA E. · 2012 to 2017
$1.6M
Intestinal Mucosal Protection by Epidermal Growth FactorR56DK055532 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI RAO, RADHAKRISHNA · 2009 to 2009
$345k
NIAAA NIH HHS 1U01AA021890NIAAA NIH HHS AA12307NIAAA NIH HHS P20 AA017837NIAAA NIH HHS R01 AA012307NIAAA NIH HHS R01 AA019673NIAAA NIH HHS R01AA019673NIAAA NIH HHS U01 AA021890NIDDK NIH HHS DK55532NIDDK NIH HHS R01 DK055532NIDDK NIH HHS R56 DK055532
6 · The paper itself

Abstract

backgroundAcetaldehyde, the toxic ethanol (EtOH) metabolite, disrupts intestinal epithelial barrier function. Aldehyde dehydrogenase (ALDH) detoxifies acetaldehyde into acetate. Subpopulations of Asians and Native Americans show polymorphism with loss-of-function mutations in ALDH2. We evaluated the effect of ALDH2 deficiency on EtOH-induced disruption of intestinal epithelial tight junctions and adherens junctions, gut barrier dysfunction, and liver injury.

methodsWild-type and ALDH2-deficient mice were fed EtOH (1 to 6%) in Lieber-DeCarli diet for 4 weeks. Gut permeability in vivo was measured by plasma-to-luminal flux of FITC-inulin, tight junction and adherens junction integrity was analyzed by confocal microscopy, and liver injury was assessed by the analysis of plasma transaminase activity, histopathology, and liver triglyceride.

resultsEtOH feeding elevated colonic mucosal acetaldehyde, which was significantly greater in ALDH2-deficient mice. ALDH2(-/-) mice showed a drastic reduction in the EtOH diet intake. Therefore, this study was continued only in wild-type and ALDH2(+/-) mice. EtOH feeding elevated mucosal inulin permeability in distal colon, but not in proximal colon, ileum, or jejunum of wild-type mice. In ALDH2(+/-) mice, EtOH-induced inulin permeability in distal colon was not only higher than that in wild-type mice, but inulin permeability was also elevated in the proximal colon, ileum, and jejunum. Greater inulin permeability in distal colon of ALDH2(+/-) mice was associated with a more severe redistribution of tight junction and adherens junction proteins from the intercellular junctions. In ALDH2(+/-) mice, but not in wild-type mice, EtOH feeding caused a loss of junctional distribution of tight junction and adherens junction proteins in the ileum. Histopathology, plasma transaminases, and liver triglyceride analyses showed that EtOH-induced liver damage was significantly greater in ALDH2(+/-) mice compared to wild-type mice.

conclusionsThese data demonstrate that ALDH2 deficiency enhances EtOH-induced disruption of intestinal epithelial tight junctions, barrier dysfunction, and liver damage.

Indexed as

Aldehyde DehydrogenaseAldehyde Dehydrogenase, MitochondrialAnimalsEthanolFatty LiverFemaleGastrointestinal AbsorptionMiceMice, Inbred C57BLMice, KnockoutTight JunctionsAldehyde DehydrogenaseAldehyde Dehydrogenase, MitochondrialALDH2 protein, mouseEthanolAcetaldehydeAdherens JunctionAlcoholGut PermeabilityTight Junction

Identifiers

PMID26173414
PMCPMC4515212
OpenAlexW2165287767

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.