Evidence map›Paper›PMID 21545836›Full record

ArticleFree radical biology & medicine2011

Nrf2 has a protective role against neuronal and capillary degeneration in retinal ischemia-reperfusion injury.

Yanhong Wei, Junsong Gong, Takeshi Yoshida, Charles G Eberhart, Zhenhua Xu, Ponvijay Kombairaju, Michael B Sporn, James T Handa, Elia J Duh

Abstract read
In one paragraph

Article in Free radical biology & medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

78 citing papers in PubMed, 141 citations in OpenAlex.

  1. Trial
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  14. Neuroprotective effect of ischemic postconditioning against hyperperfusion and its mechanisms of neuroprotection.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2024
    Review
  15. Article
  16. Potential role ofNeural regeneration research · 2023
    Article
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  18. Article
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18 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Yanhong WeiDepartment of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Junsong Gong
Takeshi Yoshida
Charles G Eberhart
Zhenhua Xu
Ponvijay Kombairaju
Michael B Sporn
James T Handa
Elia J Duh
Johns Hopkins University · USJohns Hopkins Medicine · USDartmouth College · US

Funding

AGE-induced Phenotype of the Retinal Pigment EpitheliumR01EY014005 · NEI · JOHNS HOPKINS UNIVERSITY · PI HANDA, JAMES T · 2001 to 2015
$6.4M
Nrf2 signaling and oxidative stress in Age-related macular degenerationR01EY019904 · NEI · JOHNS HOPKINS UNIVERSITY · PI HANDA, JAMES T · 2010 to 2016
$4.1M
Role and regulation of MEF2C in retinal angiogenesisR01EY018138 · NEI · JOHNS HOPKINS UNIVERSITY · PI DUH, ELIA J · 2007 to 2011
$1.8M
NEI NIH HHS EY018138NEI NIH HHS EY019904NEI NIH HHS R01 EY014005NEI NIH HHS R01 EY018138NEI NIH HHS R01 EY019904
6 · The paper itself

Abstract

Retinal ischemia-reperfusion (I/R) involves an extensive increase in reactive oxygen species as well as proinflammatory changes that result in significant histopathologic damage, including neuronal and vascular degeneration. Nrf2 has a well-known cytoprotective role in many tissues, but its protective function in the retina is unclear. We investigated the possible role of Nrf2 as a protective mechanism in retinal ischemia-reperfusion injury using Nrf2(-/-) mice. I/R resulted in an increase in retinal levels of superoxide and proinflammatory mediators, as well as leukocyte infiltration of the retina and vitreous, in Nrf2(+/+) mice. These effects were greatly accentuated in Nrf2(-/-) mice. With regard to histopathologic damage, Nrf2(-/-) mice exhibited loss of cells in the ganglion cell layer and markedly accentuated retinal capillary degeneration, as compared to wild-type. Treatment with the Nrf2 activator CDDO-Me increased antioxidant gene expression and normalized I/R-induced superoxide in the retina in wild-type but not Nrf2(-/-) mice. CDDO-Me treatment abrogated retinal capillary degeneration induced by I/R in wild-type but not Nrf2(-/-) mice. These studies indicate that Nrf2 is an important cytoprotective mechanism in the retina in response to ischemia-reperfusion injury and suggest that pharmacologic induction of Nrf2 could be a new therapeutic strategy for retinal ischemia-reperfusion and other retinal diseases.

Indexed as

AnimalsAntioxidantsCapillariesCytoprotectionGene ExpressionMiceMice, Inbred C57BLMice, KnockoutNeovascularization, PathologicNerve DegenerationNF-E2-Related Factor 2Oleanolic AcidReactive Oxygen SpeciesReperfusion InjuryRetinal VesselsAntioxidantsbardoxolone methylNfe2l2 protein, mouseNF-E2-Related Factor 2Oleanolic AcidReactive Oxygen Species

Identifiers

PMID21545836
PMCPMC3997112
OpenAlexW2046571308

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.