Evidence map›Paper›PMID 21447000›Full record

ArticleAlcoholism, clinical and experimental research2011

Zinc supplementation restores PU.1 and Nrf2 nuclear binding in alveolar macrophages and improves redox balance and bacterial clearance in the lungs of alcohol-fed rats.

Ashish J Mehta, Pratibha C Joshi, Xian Fan, Lou Ann S Brown, Jeffrey D Ritzenthaler, Jesse Roman, David M Guidot

Abstract read
In one paragraph

Article in Alcoholism, clinical and experimental research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Alcohol's Effects on the Lung and Lung Disease.Alcohol research : current reviews · 2025
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Role of GM-CSF in lung balance and disease.Frontiers in immunology · 2023
    Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Zinc Prevents the Development of Diabetic Cardiomyopathy in db/db Mice.International journal of molecular sciences · 2017
    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

7 authors at 2 institutions in 1 country.

Ashish J MehtaAtlanta VAMC, Emory University School of Medicine, Atlanta, GA 30033, USA. amehta4@emory.edu
Pratibha C Joshi
Xian Fan
Lou Ann S Brown
Jeffrey D Ritzenthaler
Jesse Roman
David M Guidot
Atlanta VA Medical Center · USEmory University · US

Funding

THE ROLE OF TGFB IN ETHANOL MEDIATED LUNG INJURYP50AA013757 · NIAAA · EMORY UNIVERSITY · PI GUIDOT, DAVID MARSHALL · 2003 to 2013
$15.7M
Institutional Training Grant in Alcohol ResearchT32AA013528 · NIAAA · EMORY UNIVERSITY · PI GUIDOT, DAVID MARSHALL · 2002 to 2011
$3.2M
Zinc deficiency in the alcoholic lungR01AA017627 · NIAAA · EMORY UNIVERSITY · PI GUIDOT, DAVID MARSHALL, JOSHI, PRATIBHA C · 2010 to 2014
$1.3M
NIAAA NIH HHS P50 AA013757NIAAA NIH HHS R01 AA017627NIAAA NIH HHS T32 AA 013528NIAAA NIH HHS T32 AA013528PHS HHS P50 013757
6 · The paper itself

Abstract

backgroundChronic alcohol abuse causes oxidative stress, impairs alveolar macrophage immune function, and increases the risk of pneumonia and acute lung injury. Recently we determined that chronic alcohol ingestion in rats decreases zinc levels and macrophage function in the alveolar space; provocative findings in that zinc is essential for normal immune and antioxidant defenses. Alveolar macrophage immune function depends on stimulation by granulocyte/monocyte colony-stimulating factor, which signals via the transcription factor PU.1. In parallel, the antioxidant response element signals via the transcription factor Nrf2. However, the role of zinc bioavailability on these signaling pathways within the alveolar space is unknown.

methodsTo determine the efficacy of dietary zinc supplementation on lung bacterial clearance and oxidative stress, we tested 3 different groups of rats: control-fed, alcohol-fed, and alcohol-fed with zinc supplementation. Rats were then inoculated with intratracheal Klebsiella pneumoniae, and lung bacterial clearance was determined 24 hours later. Isolated alveolar macrophages were isolated from uninfected animals and evaluated for oxidative stress and signaling through PU.1 and Nrf2.

resultsAlcohol-fed rats had a 5-fold decrease in lung bacterial clearance compared to control-fed rats. Dietary zinc supplementation of alcohol-fed rats normalized bacterial clearance and mitigated oxidative stress in the alveolar space, as reflected by the relative balance of the thiol redox pair cysteine and cystine, and increased nuclear binding of both PU.1 and Nrf2 in alveolar macrophages from alcohol-fed rats.

conclusionsDietary zinc supplementation prevents alcohol-induced alveolar macrophage immune dysfunction and oxidative stress in a relevant experimental model, suggesting that such a strategy could decrease the risk of pneumonia and lung injury in individuals with alcohol use disorders.

Indexed as

Macrophages, AlveolarNF-E2-Related Factor 2Proto-Oncogene ProteinsTrace ElementsTrans-ActivatorsZincAlcoholismAnimalsDisease Models, AnimalEthanolGranulocyte-Macrophage Colony-Stimulating FactorKlebsiella InfectionsKlebsiella pneumoniaeLungLung InjuryMaleEthanolGranulocyte-Macrophage Colony-Stimulating FactorNF-E2-Related Factor 2Proto-Oncogene ProteinsProto-Oncogene Protein Spi-1Trace ElementsTrans-ActivatorsZinc

Identifiers

PMID21447000
PMCPMC3128659
OpenAlexW1796588478

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.