Evidence map›Paper›PMID 26590992›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2016

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.

QuanZhen Zhao, Xinglong Yang, SiJia Tian, Ran An, JinHua Zheng, Yanming Xu

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
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

26 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Occupational histories in neuropathologically confirmed multiple system atrophy.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. The genetic basis of multiple system atrophy.Journal of translational medicine · 2023
    Review
  7. Review
  8. Multiple system atrophy.Nature reviews. Disease primers · 2022
    Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
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  20. Review
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

6 authors at 1 institution in 1 country.

QuanZhen ZhaoDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
Xinglong YangDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
SiJia TianDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
Ran AnDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
JinHua ZhengDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
Yanming XuDepartment of Neurology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China. neuroxym999@163.com.
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies in Japan have associated multiple system atrophy (MSA), a neurodegenerative disease of uncertain etiology, with polymorphism in the COQ2 gene. This led us to explore whether the same polymorphism is associated with MSA in Han Chinese and more broadly in East Asians. We conducted a case-control study with 82 Han Chinese with probable MSA and 484 gender- and age-matched healthy subjects, genotyping them using the ligase detection reaction. The results were meta-analyzed together with data from four previous studies to gain a broader picture of possible disease associations in East Asian populations. The COQ2 variants M78V and R337X were not detected in our Han Chinese patients or controls; only the heterozygous V393A variant (CT genotype) was detected. The frequency of this genotype was significantly higher in patients (7.3%) than in controls (1.86%; OR 4.17, 95% CI 1.44-12.04, p = 0.004). Subgroup analysis among patients showed a significant association of V393A with MSA involving cerebellar signs (MSA-C; OR 4.59, 95% CI 1.36-15.48, p = 0.007), but not with MSA involving parkinsonism (MSA-P). Meta-analysis of our results in Han Chinese with data from case-control studies in Japan, Korea, mainland China and Taiwan showed a significant association of V393A with MSA (OR 2.05, 95% CI 1.29-3.25, p = 0.002), which subgroup analysis showed to be significant for MSA-C (OR 2.75, 95% CI 1.98-3.84, p < 0.001) but not for MSA-P (OR 1.25, 95% CI 0.64-2.46, p = 0.51). These findings provide evidence that the previously reported association of COQ2 V393A polymorphism with increased risk of MSA in Japanese also applies to Han Chinese, as well as more broadly to other East Asian populations. This association may be particularly strong for MSA-C.

Indexed as

Genetic Predisposition to DiseaseGenetic VariationAgedAlkyl and Aryl TransferasesAsian PeopleCase-Control StudiesChinaFemaleHumansJapanKoreaMaleMiddle AgedMultiple System AtrophyRiskTaiwan4-hydroxybenzoate polyprenyltransferaseAlkyl and Aryl TransferasesCoenzyme Q10COQ2Gene polymorphismMultiple system atrophy

Identifiers

PMID26590992
OpenAlexW2208454753

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.