Evidence map›Paper›PMID 23689279›Full record

ArticleCell research2013

ALDH2 protects against stroke by clearing 4-HNE.

Jin-Min Guo, Ai-Jun Liu, Pu Zang, Wen-Zhe Dong, Li Ying, Wei Wang, Pu Xu, Xu-Rui Song, Jun Cai, She-Qing Zhang and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Cell research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed, 1 pooled it
9.0field-weighted citation impact, top 2% 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

109 citing papers in PubMed, 1 synthesis or guideline pooled it, 183 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Alcohol Interaction and ALDH2: Missing Links in EMPHASIS.Cerebrovascular diseases (Basel, Switzerland) · 2026
    Article
  8. Article
  9. Oxeiptosis - potential in cancer treatment?Expert reviews in molecular medicine · 2026
    Review
  10. Article
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  13. Article
  14. Article
  15. Article
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49 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 2 countries.

Jin-Min GuoDepartment of Pharmacology, School of Pharmacy, Second Military Medical University, 325 Guo He Road, Shanghai 200433, China.
Ai-Jun Liu
Pu Zang
Wen-Zhe Dong
Li Ying
Wei Wang
Pu Xu
Xu-Rui Song
Jun Cai
She-Qing Zhang
Jun-Li Duan
Jawahar L Mehta
Ding-Feng Su
Second Military Medical University · CNXinHua Hospital · CNChanghai Hospital · CNUniversity of Arkansas for Medical Sciences · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aldehyde dehydrogenase 2 (ALDH2) is a mitochondrial enzyme that metabolizes ethanol and toxic aldehydes such as 4-hydroxy-2-nonenal (4-HNE). Using an unbiased proteomic search, we identified ALDH2 deficiency in stroke-prone spontaneously hypertensive rats (SHR-SP) as compared with spontaneously hypertensive rats (SHR). We concluded the causative role of ALDH2 deficiency in neuronal injury as overexpression or activation of ALDH2 conferred neuroprotection by clearing 4-HNE in in vitro studies. Further, ALDH2-knockdown rats revealed the absence of neuroprotective effects of PKCε. Moderate ethanol administration that is known to exert protection against stroke was shown to enhance the detoxification of 4-HNE, and to protect against ischemic cerebral injury through the PKCε-ALDH2 pathway. In SHR-SP, serum 4-HNE level was persistently elevated and correlated inversely with the lifespan. The role of 4-HNE in stroke in humans was also suggested by persistent elevation of its plasma levels for at least 6 months after stroke. Lastly, we observed that 21 of 1 242 subjects followed for 8 years who developed stroke had higher initial plasma 4-HNE levels than those who did not develop stroke. These findings suggest that activation of the ALDH2 pathway may serve as a useful index in the identification of stroke-prone subjects, and the ALDH2 pathway may be a potential target of therapeutic intervention in stroke.

Indexed as

Aldehyde DehydrogenaseAldehyde Dehydrogenase, MitochondrialAldehydesAnimalsFluorescent Antibody TechniqueHumansImmunoblottingImmunoprecipitationMaleMalondialdehydeMitochondrial ProteinsOxidative StressPC12 CellsRatsRats, Sprague-DawleyStroke4-hydroxy-2-nonenalAldehyde DehydrogenaseAldehyde Dehydrogenase, MitochondrialAldehydesAldh2 protein, ratMalondialdehydeMitochondrial Proteins

Identifiers

PMID23689279
PMCPMC3698638
OpenAlexW2006467298

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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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.