Evidence map›Paper›PMID 21633713›Full record

ArticleMolecular vision2011

Inhalative preconditioning with hydrogen sulfide attenuated apoptosis after retinal ischemia/reperfusion injury.

Julia Biermann, Wolf A Lagrèze, Nils Schallner, Christian I Schwer, Ulrich Goebel

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Gas entrapping materials for damage control.Advanced drug delivery reviews · 2026
    Review
  3. Article
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  9. Inhalative as well as Intravenous Administration of HInternational journal of molecular sciences · 2022
    Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Hydrogen Sulfide andJournal of ophthalmology · 2020
    Article
  17. Review
  18. Article
  19. Article
  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

5 authors at 1 institution in 1 country.

Julia BiermannUniversity Eye Hospital Freiburg, Freiburg, Germany. julia.biermann@uniklinik-freiburg.de
Wolf A Lagrèze
Nils Schallner
Christian I Schwer
Ulrich Goebel
University Medical Center Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRetinal ischemia/reperfusion (I/R) injury plays an important role in the pathophysiology of various ocular diseases. Retinal ganglion cells (RGCs) are particularly vulnerable to ischemia. Hydrogen sulfide (H(2)S) was recently shown to be neuroprotective in the brain and retina due to its antiapoptotic effects. Rapid preconditioning of retinal neurons by inhaled H(2)S before I/R injury may reduce apoptosis in the rat retina.

methodsI/R injury was created on the left eye of rats (n=8) with or without inhaled H(2)S preconditioning (80 ppm) for one hour before ischemia. Densities of fluorogold prelabeled RGCs were analyzed 7 days after injury in retinal whole mounts. Retinal tissue was harvested to analyze protein expression of heat shock protein (HSP)-90 and the mitogen-activated protein kinases (MAPKs) c-jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK)1/2 and p38 to elucidate a possible pathway of neuroprotection. DNA binding activity of the transcription factors nuclear factor-kappa-light-chain-enhancer of activated B-cells (NF-κB), cyclic adenosine monophosphate response element binding protein (CREB), and heat shock element (HSE), as well as caspase-3 cleavage and activity, were determined. Retinal sections were further assessed using anti-glial fibrillary acidic protein staining.

resultsRGC death after I/R injury decreased by 41.5% after H(2)S preconditioning compared to room air (p<0.001). H(2)S inhalation before ischemia reduced caspase-3 cleavage (p<0.001) and attenuated caspase-3 activity (p<0.001). Furthermore, HSP-90 expression was significantly elevated in the retina after H(2)S preconditioning. NF-κB but not CREB or HSE showed specific, H2S-dependent regulation, as well as the MAPKs ERK1/2 and JNK but not p38.

conclusionsH(2)S preconditioning mediates antiapoptotic effects in retinal I/R injury, thus exhibiting neuroprotection. Based on these observations, H(2)S could represent a novel and promising therapeutic agent to counteract neuronal injuries in the eye. Further studies are needed to prove H(2)S's neuroprotective propensity using a postconditioning approach.

Indexed as

Administration, InhalationAnimalsApoptosisCaspase InhibitorsCell DeathDNAFemaleGlial Fibrillary Acidic ProteinHSP90 Heat-Shock ProteinsHydrogen SulfideIschemic PreconditioningMaleMitogen-Activated Protein KinasesNeuroprotective AgentsNF-kappa BRatsCaspase InhibitorsDNAGlial Fibrillary Acidic ProteinHSP90 Heat-Shock ProteinsHydrogen SulfideMitogen-Activated Protein KinasesNeuroprotective AgentsNF-kappa B

Identifiers

PMID21633713
PMCPMC3103742
OpenAlexW2147440297

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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.