Evidence map›Paper›PMID 22728269›Full record

ArticleFree radical biology & medicine2012

Increased NADPH oxidase-derived superoxide is involved in the neuronal cell death induced by hypoxia-ischemia in neonatal hippocampal slice cultures.

Qing Lu, Mark S Wainwright, Valerie A Harris, Saurabh Aggarwal, Yali Hou, Thomas Rau, David J Poulsen, Stephen M Black

Abstract read
In one paragraph

Article in Free radical biology & medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
8.5field-weighted citation impact, top 3% 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

37 citing papers in PubMed, 49 citations in OpenAlex.

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  5. Role of NaJournal of molecular medicine (Berlin, Germany) · 2022
    Review
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  10. Vitamin D Attenuates Hypoxia-Induced Injury in Rat Primary Neuron Cells through Downregulation of the Dual Oxidase 1 (DUOX1) Gene.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
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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

8 authors at 4 institutions in 1 country.

Qing LuVascular Biology Center, Georgia Health Sciences University, Augusta, GA 30912, USA.
Mark S Wainwright
Valerie A Harris
Saurabh Aggarwal
Yali Hou
Thomas Rau
David J Poulsen
Stephen M Black
Augusta University · USAugusta University Health · USUniversity of Montana · USNorthwestern University · US

Funding

PERINATAL REGULATION OF THE ENDOTHELIAL NOS GENER01HL060190 · NHLBI · UNIVERSITY OF MONTANA · PI Stephen M Black · 1998 to 2026
$7.1M
ROS in Pulmonary Hypertension: Role of ADMAR01HL067841 · NHLBI · UNIVERSITY OF MONTANA · PI BLACK, STEPHEN M · 2002 to 2011
$2.6M
THE ROLE OF NEURONAL NOS DIMERIZATION IN NEUROTOXICITYR01HD039110 · NICHD · UNIVERSITY OF MONTANA · PI BLACK, STEPHEN M · 1999 to 2010
$2.0M
NHLBI NIH HHS R01 HL060190NHLBI NIH HHS R01 HL067841NICHD NIH HHS HD039110NICHD NIH HHS R01 HD039110
6 · The paper itself

Abstract

Neonatal brain hypoxia-ischemia (HI) results in neuronal cell death. Previous studies indicate that reactive oxygen species, such as superoxide, play a key role in this process. However, the cellular sources have not been established. In this study we examine the role of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex in neonatal HI brain injury and elucidate its mechanism of activation. Rat hippocampal slices were exposed to oxygen glucose deprivation (OGD) to mimic the conditions seen in HI. Initial studies confirmed an important role for NADPH oxidase-derived superoxide in the oxidative stress associated with OGD. Further, the OGD-mediated increase in apoptotic cell death was inhibited by the NADPH oxidase inhibitor apocynin. The activation of NADPH oxidase was found to be dependent on the p38 mitogen-activated protein kinase-mediated phosphorylation and activation of the p47(phox) subunit. Using an adeno-associated virus antisense construct to selectively decrease p47(phox) expression in neurons showed that this led to inhibition of both the increase in superoxide and the neuronal cell death associated with OGD. We also found that NADPH oxidase inhibition in a neonatal rat model of HI or scavenging hydrogen peroxide reduced brain injury. Thus, we conclude that activation of the NADPH oxidase complex contributes to the oxidative stress during HI and that therapies targeted against this complex could provide neuroprotection against the brain injury associated with neonatal HI.

Indexed as

Organ Culture TechniquesAcetophenonesAnimalsAnimals, NewbornCell DeathGlucoseHippocampusHypoxia-Ischemia, BrainMicrotomyNADPH OxidasesNeuronsOxygenRatsRats, Sprague-DawleySuperoxidesAcetophenonesacetovanilloneGlucoseNADPH OxidasesOxygenSuperoxides

Identifiers

PMID22728269
PMCPMC3527086
OpenAlexW1999465418

What OpenQuestion holds

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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.