Evidence map›Paper›PMID 17412732›Full record

ArticleBrain : a journal of neurology2007

The myopathic form of coenzyme Q10 deficiency is caused by mutations in the electron-transferring-flavoprotein dehydrogenase (ETFDH) gene.

Klaus Gempel, Haluk Topaloglu, Beril Talim, Peter Schneiderat, Benedikt G H Schoser, Volkmar H Hans, Beatrix Pálmafy, Gulsev Kale, Aysegul Tokatli, Catarina Quinzii and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 132 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
132citing papers in PubMed, 3 pooled it
10.2field-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

132 citing papers in PubMed, 3 syntheses or guidelines pooled it, 318 citations in OpenAlex.

  1. Pooled it
  2. The efficacy of coenzyme QJournal of cellular and molecular medicine · 2022
    Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Understanding coenzyme Q.Physiological reviews · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. A clinical approach to diagnosis and management of mitochondrial myopathies.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  16. Review
  17. Article
  18. Biosynthesis, Deficiency, and Supplementation of Coenzyme Q.Antioxidants (Basel, Switzerland) · 2023
    Review
  19. Review
  20. Coenzyme Q10: Role in Less Common Age-Related Disorders.Antioxidants (Basel, Switzerland) · 2022
    Review

72 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

16 authors at 5 institutions in 3 countries.

Klaus GempelMetabolic Disease Center Munich-Schwabing, Institutes of Clinical Chemistry, Molecular Diagnostics and Mitochondrial Genetics; Academic Hospital Schwabing, Munich, Germany.
Haluk Topaloglu
Beril Talim
Peter Schneiderat
Benedikt G H Schoser
Volkmar H Hans
Beatrix Pálmafy
Gulsev Kale
Aysegul Tokatli
Catarina Quinzii
Michio Hirano
Ali Naini
Salvatore DiMauro
Holger Prokisch
Hanns Lochmüller
Rita Horvath
Hacettepe University · TREvangelisches Krankenhaus Bielefeld · DEUniversity Hospital and Clinics · USHacettepe University Hospital · TRLudwig-Maximilians-Universität München · DE

Funding

Molecular Pathogenesis of Coenzyme Q10 DeficiencyR01HD057543 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI HIRANO, MICHIO · 2008 to 2012
$2.0M
NICHD NIH HHS R01 HD057543
6 · The paper itself

Abstract

Coenzyme Q10 (CoQ10) deficiency is an autosomal recessive disorder with heterogenous phenotypic manifestations and genetic background. We describe seven patients from five independent families with an isolated myopathic phenotype of CoQ10 deficiency. The clinical, histological and biochemical presentation of our patients was very homogenous. All patients presented with exercise intolerance, fatigue, proximal myopathy and high serum CK. Muscle histology showed lipid accumulation and subtle signs of mitochondrial myopathy. Biochemical measurement of muscle homogenates showed severely decreased activities of respiratory chain complexes I and II + III, while complex IV (COX) was moderately decreased. CoQ10 was significantly decreased in the skeletal muscle of all patients. Tandem mass spectrometry detected multiple acyl-CoA deficiency, leading to the analysis of the electron-transferring-flavoprotein dehydrogenase (ETFDH) gene, previously shown to result in another metabolic disorder, glutaric aciduria type II (GAII). All of our patients carried autosomal recessive mutations in ETFDH, suggesting that ETFDH deficiency leads to a secondary CoQ10 deficiency. Our results indicate that the late-onset form of GAII and the myopathic form of CoQ10 deficiency are allelic diseases. Since this condition is treatable, correct diagnosis is of the utmost importance and should be considered both in children and in adults. We suggest to give patients both CoQ10 and riboflavin supplementation, especially for long-term treatment.

Indexed as

MutationAdolescentAdultBiopsyChildCoenzymesElectron-Transferring FlavoproteinsFemaleFollow-Up StudiesHumansIron-Sulfur ProteinsMaleMuscle, SkeletalMuscular DiseasesOxidoreductases Acting on CH-NH Group DonorsRiboflavincoenzyme Q10Coenzymeselectron-transferring-flavoprotein dehydrogenaseElectron-Transferring FlavoproteinsIron-Sulfur ProteinsOxidoreductases Acting on CH-NH Group DonorsRiboflavinUbiquinone

Identifiers

PMID17412732
PMCPMC4345103
OpenAlexW2155875381

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.