Evidence map›Paper›PMID 15347817›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Reduction of nitrite to nitric oxide during ischemia protects against myocardial ischemia-reperfusion damage.

Andrew Webb, Richard Bond, Peter McLean, Rakesh Uppal, Nigel Benjamin, Amrita Ahluwalia

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In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 230 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
230citing papers in PubMed, 2 pooled it
13.2field-weighted citation impact, top 1% 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

230 citing papers in PubMed, 2 syntheses or guidelines pooled it, 608 citations in OpenAlex.

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170 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

6 authors at 1 institution in 1 country.

Andrew WebbClinical Pharmacology, William Harvey Research Institute, Barts and the London, Queen Mary's School of Medicine and Dentistry, Charterhouse Square, London EC1M 6BQ, England.
Richard Bond
Peter McLean
Rakesh Uppal
Nigel Benjamin
Amrita Ahluwalia
William Harvey Research Institute · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitric oxide (NO.) is thought to protect against the damaging effects of myocardial ischemia-reperfusion injury, whereas xanthine oxidoreductase (XOR) normally causes damage through the generation of reactive oxygen species. In the heart, inorganic nitrite (NO(2)(-)) has the potential to act as an endogenous store of NO., liberated specifically during ischemia. Using a detection method that we developed, we report that under ischemic conditions both rat and human homogenized myocardium and the isolated perfused rat heart (Langendorff preparation) generate NO. from NO(2)(-) in a reaction that depends on XOR activity. Functional studies of rat hearts in the Langendorff apparatus showed that nitrite (10 and 100 microM) reduced infarct size from 47.3 +/- 2.8% (mean percent of control +/- SEM) to 17.9 +/- 4.2% and 17.4 +/- 1.0%, respectively (P < 0.001), and was associated with comparable improvements in recovery of left ventricular function. This protective effect was completely blocked by the NO. scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazole-1-oxyl 3-oxide (carboxy-PTIO). In summary, the generation of NO. from NO(2)(-), by XOR, protects the myocardium from ischemia-reperfusion injury. Hence, if XOR is presented with NO(2)(-) as an alternative substrate, the resultant effects of its activity may be protective, by means of its production of NO. , rather than damaging.

Indexed as

AnimalsCardiotonic AgentsHumansHydrogen-Ion ConcentrationMaleMyocardial IschemiaMyocardial Reperfusion InjuryMyocardiumNitric OxideNitritesOxidation-ReductionRatsRats, WistarXanthineXanthine OxidaseCardiotonic AgentsNitric OxideNitritesXanthineXanthine Oxidase

Identifiers

PMID15347817
PMCPMC518813
OpenAlexW2094949453

What OpenQuestion holds

Textmetadata
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.