Evidence map›Paper›PMID 25373618›Full record

ArticleMolecular neurodegeneration2014

Analysis of COQ2 gene in multiple system atrophy.

Kotaro Ogaki, Shinsuke Fujioka, Michael G Heckman, Sruti Rayaprolu, Alexandra I Soto-Ortolaza, Catherine Labbé, Ronald L Walton, Oswaldo Lorenzo-Betancor, Xue Wang, Yan Asmann and 7 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Molecular neurodegeneration, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Association of the COQ2 V393A variant with risk of multiple system atrophy in East Asians: a case-control study and meta-analysis of the literature.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2016
    Pooled it
  2. Coenzyme QMetabolic brain disease · 2026
    Article
  3. Article
  4. Multiple system atrophy: cure and care.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. The genetic basis of multiple system atrophy.Journal of translational medicine · 2023
    Review
  10. A Mouse Model of Multiple System Atrophy: Bench to Bedside.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Current experimental disease-modifying therapeutics for multiple system atrophy.Journal of neural transmission (Vienna, Austria : 1996) · 2021
    Review
  17. Signs of early cellular dysfunction in multiple system atrophy.Neuropathology and applied neurobiology · 2021
    Article
  18. Review
  19. Review
  20. Article
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

17 authors at 3 institutions in 1 country.

Kotaro Ogaki
Shinsuke Fujioka
Michael G Heckman
Sruti Rayaprolu
Alexandra I Soto-Ortolaza
Catherine Labbé
Ronald L Walton
Oswaldo Lorenzo-Betancor
Xue Wang
Yan Asmann
Rosa Rademakers
Neill Graff-Radford
Ryan Uitti
William P Cheshire
Zbigniew K Wszolek
Dennis W Dickson
Owen A RossDepartment of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA. ross.owen@mayo.edu.
Mayo Clinic in Florida · USWinnMed · USJacksonville College · US

Funding

Neuropathology CoreP50NS072187 · NINDS · MAYO CLINIC JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 2010 to 2017
$8.7M
Understanding the role of MAPT in Parkinsonian disordersR01NS078086 · NINDS · MAYO CLINIC JACKSONVILLE · PI ROSS, OWEN A · 2012 to 2016
$1.7M
NINDS NIH HHS P50 NS072187NINDS NIH HHS R01 NS078086
6 · The paper itself

Abstract

backgroundLoss of function COQ2 mutations results in primary CoQ10 deficiency. Recently, recessive mutations of the COQ2 gene have been identified in two unrelated Japanese families with multiple system atrophy (MSA). It has also been proposed that specific heterozygous variants in the COQ2 gene may confer susceptibility to sporadic MSA. To assess the frequency of COQ2 variants in patients with MSA, we sequenced the entire coding region and investigated all exonic copy number variants of the COQ2 gene in 97 pathologically-confirmed and 58 clinically-diagnosed MSA patients from the United States.

resultsWe did not find any homozygous or compound heterozygous pathogenic COQ2 mutations including deletion or multiplication within our series of MSA patients. In two patients, we identified two heterozygous COQ2 variants (p.S54W and c.403 + 10G > T) of unknown significance, which were not observed in 360 control subjects. We also identified one heterozygous carrier of a known loss of function p.S146N substitution in a severe MSA-C pathologically-confirmed patient.

conclusionsThe COQ2 p.S146N substitution has been previously reported as a pathogenic mutation in primary CoQ10 deficiency (including infantile multisystem disorder) in a recessive manner. This variant is the third primary CoQ10 deficiency mutation observed in an MSA case (p.R387X and p.R197H). Therefore it is possible that in the heterozygous state it may increase susceptibility to MSA. Further studies, including reassessing family history in patients of primary CoQ10 deficiency for the possible occurrence of MSA, are now warranted to resolve the role of COQ2 variation in MSA.

Indexed as

AdultAgedAged, 80 and overAlkyl and Aryl TransferasesFemaleHumansMaleMiddle AgedMultiple System AtrophyReverse Transcriptase Polymerase Chain Reaction4-hydroxybenzoate polyprenyltransferaseAlkyl and Aryl Transferases

Identifiers

PMID25373618
PMCPMC4233093
OpenAlexW2099092197

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.