Evidence map›Paper›PMID 22896851›Full record

ArticleMolecular genetics and metabolism2012

The spectrum of pyruvate dehydrogenase complex deficiency: clinical, biochemical and genetic features in 371 patients.

Kavi P Patel, Thomas W O'Brien, Sankarasubramon H Subramony, Jonathan Shuster, Peter W Stacpoole

2 registry-linked trialsAbstract readCorrected and Republished Article
In one paragraph

Article in Molecular genetics and metabolism, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
–field-weighted citation impact
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.

NCT02616484 phase3active not recruitingnot on this mapstarted 2020, after this paper: background citation

Phase 3 Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:

TypeinterventionalSponsorSaol Therapeutics IncRan2020 to 2025Enrolled34ConditionsPyruvate Dehydrogenase Complex DeficiencyArmsDichloroacetate (DCA), Placebo, Genotype
NCT05257005 unknown statusnot on this mapstarted 2020, after this paper: background citation

Natural History Study of Pyruvate Dehydrogenase Deficiency

TypeobservationalSponsorGreat Ormond Street Hospital for Children NHS Foundation TrustRan2020 to 2024Enrolled50ConditionsPyruvate Dehydrogenase Complex Deficiency, Pyruvate Dehydrogenase E1 Alpha Deficiency, Pyruvate Dehydrogenase E1-Beta Deficiency, Pyruvate Dehydrogenase E2 Deficiency
3 · Its place in the literature

Who cites it

94 citing papers in PubMed.

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  11. Ketogenic diet in neonates: effects, pitfalls, and a paradigm from a preterm newborn affected by pyruvate dehydrogenase deficiency.Journal of perinatology : official journal of the California Perinatal Association · 2025
    Review
  12. Article
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  20. Advancing the neuroimaging diagnosis and understanding of mitochondrial disorders.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review

34 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Kavi P PatelDepartment of Medicine (Division of Endocrinology, Metabolism and Diabetes), College of Medicine, University of Florida, Gainesville, FL 32611, USA.
Thomas W O'Brien
Sankarasubramon H Subramony
Jonathan Shuster
Peter W Stacpoole

Funding

UF Clinical and Translational Science AwardUL1TR000064 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$12.2M
Planning Grant for Phase 3 Trial of Dichloroacetate in PDH DeficiencyR34HD065991 · NICHD · UNIVERSITY OF FLORIDA · PI STACPOOLE, PETER WALLACE · 2010 to 2010
$125k
NCATS NIH HHS UL1 TR000064NCRR NIH HHS U54RR025208-01NCRR NIH HHS UL1RR025208NICHD NIH HHS R34 HD065991NICHD NIH HHS R34HD065991-01
6 · The paper itself

Abstract

contextPyruvate dehydrogenase complex (PDC) deficiency is a genetic mitochondrial disorder commonly associated with lactic acidosis, progressive neurological and neuromuscular degeneration and, usually, death during childhood. There has been no recent comprehensive analysis of the natural history and clinical course of this disease.

objectiveWe reviewed 371 cases of PDC deficiency, published between 1970 and 2010, that involved defects in subunits E1α and E1β and components E1, E2, E3 and the E3 binding protein of the complex. DATA SOURCES AND EXTRACTION: English language peer-reviewed publications were identified, primarily by using PubMed and Google Scholar search engines.

resultsNeurodevelopmental delay and hypotonia were the commonest clinical signs of PDC deficiency. Structural brain abnormalities frequently included ventriculomegaly, dysgenesis of the corpus callosum and neuroimaging findings typical of Leigh syndrome. Neither gender nor any clinical or neuroimaging feature differentiated the various biochemical etiologies of the disease. Patients who died were younger, presented clinically earlier and had higher blood lactate levels and lower residual enzyme activities than subjects who were still alive at the time of reporting. Survival bore no relationship to the underlying biochemical or genetic abnormality or to gender.

conclusionsAlthough the clinical spectrum of PDC deficiency is broad, the dominant clinical phenotype includes presentation during the first year of life; neurological and neuromuscular degeneration; structural lesions revealed by neuroimaging; lactic acidosis and a blood lactate:pyruvate ratio ≤ 20.

Indexed as

FemaleHumansMalePubMedPyruvate Dehydrogenase ComplexPyruvate Dehydrogenase Complex Deficiency DiseasePyruvate Dehydrogenase Complex

Identifiers

PMID22896851
PMCPMC4003492

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Registered trials

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.