Evidence map›Paper›PMID 21619879›Full record

ArticleExperimental neurology2011

Adaptation to moderate hypoxia protects cortical neurons against ischemia-reperfusion injury and excitotoxicity independently of HIF-1α.

Dongdong Li, Tao Bai, James R Brorson

Abstract read
In one paragraph

Article in Experimental neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.5field-weighted citation impact, top 31% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
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  8. Article
  9. Neuronal responses to physiological stress.Frontiers in genetics · 2012
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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

3 authors at 1 institution in 1 country.

Dongdong LiDepartment of Neurology, MC 2030, The University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA.
Tao Bai
James R Brorson
University of Chicago · US

Funding

AMPA RECEPTOR EXPRESSION AND SELECTIVE NEURONAL DEATHR01NS036260 · NINDS · UNIVERSITY OF CHICAGO · PI BRORSON, JAMES R. · 1999 to 2006
$1.4M
NINDS NIH HHS R01 NS036260
6 · The paper itself

Abstract

Continuous exposure of cultured cortical neurons to moderate hypoxia (1% O(2)) elevates cellular accumulation of hypoxia-inducible factor-1α (HIF-1α) and improves basal survival of cultured cortical neurons. We examined the effects of adaptation to moderate hypoxia on the vulnerability of cultured neurons to the acute injury of simulated ischemia-reperfusion. Cortical neurons cultured continuously in 1% O(2) were markedly protected against simulated ischemia-reperfusion, with protection persisting through 72h after ischemia. Neurons from 1% O(2) conditions were also highly resistant to glutamate-induced NMDA receptor-dependent excitotoxic injury, despite expression of NMDA receptors at levels not significantly changed from controls. Inhibition of prolyl hydroxylase, mimicking cellular signaling effects of hypoxia including HIF-1α stabilization, also protected neurons against simulated ischemia-reperfusion injury. Nevertheless, genetic deletion of HIF-1α expression did not diminish the protection of neurons adapted to 1% O(2) from excitotoxicity or ischemia-reperfusion injury, nor did it prevent the protective effect of prolyl hydroxylase inhibition. We conclude that chronic exposure to moderate hypoxia, through HIF-1α-independent mechanisms, produces strong protective effects against excitotoxic and ischemia-reperfusion related injury.

Indexed as

Analysis of VarianceAnimalsBlotting, WesternCells, CulturedCell SurvivalCerebral CortexHypoxiaHypoxia-Inducible Factor 1, alpha SubunitMiceNeuronsPatch-Clamp TechniquesReperfusion InjuryHif1a protein, mouseHypoxia-Inducible Factor 1, alpha Subunit

Identifiers

PMID21619879
PMCPMC3650025
OpenAlexW2064397983

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.