Evidence map›Paper›PMID 15562436›Full record

ReviewJournal of neuroscience research

Pyruvate dehydrogenase complex: metabolic link to ischemic brain injury and target of oxidative stress.

Erica Martin, Robert E Rosenthal, Gary Fiskum

Open access · bronzeAbstract readReview
In one paragraph

Review in Journal of neuroscience research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
6.2field-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

75 citing papers in PubMed, 168 citations in OpenAlex.

  1. Review
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  6. Frontiers in pharmacology · 2025
    Article
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  19. Neuroprotective Strategies in Aneurysmal Subarachnoid Hemorrhage (aSAH).International journal of molecular sciences · 2021
    Review
  20. Review

15 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

3 authors at 1 institution in 1 country.

Erica MartinDepartment of Anesthesiology, University of Maryland School of Medicine, 684 W. Baltimore Street, Baltimore, MD 21201, USA.
Robert E Rosenthal
Gary Fiskum
University of Maryland, Baltimore · US

Funding

SPECTRIN-DEPENDENT MEMBRANE DOMAINS IN THE DEVELOPING CNSP01HD016596 · NICHD · UNIVERSITY OF MARYLAND BALTIMORE · PI MCKENNA, MARY C · 1985 to 2013
$12.8M
Molecular Mechanisms of Ischemia Reperfusion Brain InjuryR01NS034152 · NINDS · UNIVERSITY OF MARYLAND BALTIMORE · PI FISKUM, GARY M · 1995 to 2008
$2.7M
NOVEL MECHANISMS OF MITOCHONDRIAL FREE RADIAL GENERATIONR21ES011838 · NIEHS · UNIVERSITY OF MARYLAND BALTIMORE · PI FISKUM, GARY · 2002 to 2003
$371k
NICHD NIH HHS HD 16596NICHD NIH HHS P01 HD016596NIEHS NIH HHS ES 11838NIEHS NIH HHS R21 ES011838NINDS NIH HHS NS 34152NINDS NIH HHS R01 NS034152
6 · The paper itself

Abstract

The mammalian pyruvate dehydrogenase complex (PDHC) is a mitochondrial matrix enzyme complex (greater than 7 million Daltons) that catalyzes the oxidative decarboxylation of pyruvate to form acetyl CoA, nicotinamide adenine dinucleotide (the reduced form, NADH), and CO(2). This reaction constitutes the bridge between anaerobic and aerobic cerebral energy metabolism. PDHC enzyme activity and immunoreactivity are lost in selectively vulnerable neurons after cerebral ischemia and reperfusion. Evidence from experiments carried out in vitro suggests that reperfusion-dependent loss of activity is caused by oxidative protein modifications. Impaired enzyme activity may explain the reduced cerebral glucose and oxygen consumption that occurs after cerebral ischemia. This hypothesis is supported by the hyperoxidation of mitochondrial electron transport chain components and NAD(H) that occurs during reperfusion, indicating that NADH production, rather than utilization, is rate limiting. Additional support comes from the findings that immediate postischemic administration of acetyl-L-carnitine both reduces brain lactate/pyruvate ratios and improves neurologic outcome after cardiac arrest in animals. As acetyl-L-carnitine is converted to acetyl CoA, the product of the PDHC reaction, it follows that impaired production of NADH is due to reduced activity of either PDHC or one or more steps in glycolysis. Impaired cerebral energy metabolism and PDHC activity are associated also with neurodegenerative disorders including Alzheimer's disease and Wernicke-Korsakoff syndrome, suggesting that this enzyme is an important link in the pathophysiology of both acute brain injury and chronic neurodegeneration.

Indexed as

Energy MetabolismAnimalsBrain IschemiaEnzyme ActivationFrontal LobeHeart ArrestHumansModels, BiologicalNeurodegenerative DiseasesOxidative StressPyruvate Dehydrogenase ComplexTime FactorsPyruvate Dehydrogenase Complex

Identifiers

PMID15562436
PMCPMC2570320
OpenAlexW2072593376

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.