Evidence map›Paper›PMID 25060648›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2015

Val158Met polymorphism of COMT gene and Parkinson's disease risk in Asians.

Lixue Chuan, Jie Gao, Yuying Lei, Raoxiang Wang, Lechun Lu, Xianyu Zhang

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, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Does COMT Play a Role in Parkinson's Disease Susceptibility across Diverse Ancestral Populations?Movement disorders : official journal of the Movement Disorder Society · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. BioMed research international · 2018
    Article
  7. Article
  8. Association of COMT Val158Met polymorphism with wearing-off susceptibility in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2015
    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

6 authors at 2 institutions in 1 country.

Lixue ChuanDepartment of Physiology, Kunming Medical University, No. 1168 West Chunrong Road, Yuhua Avenue, Chenggong District, Kunming, 650500, Yunnan, People's Republic of China.
Jie Gao
Yuying Lei
Raoxiang Wang
Lechun Lu
Xianyu Zhang
Kunming Medical University · CNPeople's Government of Shaanxi Province · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In previous study, we have found the catechol-O-methyltransferase (COMT) Val158Met polymorphism as an associated risk factor for Parkinson's disease (PD) in Asian rather than Caucasian populations. The aim of this study was to further evaluate the associations of PD risk with COMT polymorphisms in different Asian populations. We carried out a retrieval of studies that investigated associations between COMT Val158Met polymorphism and PD risk in Asians, and included the study if it met the eligibility criteria. Stata version 12.0 was used to analyze the data. A total of 13 studies including 1,834 patients and 2,298 controls were included. The overall result indicated that COMT Val158Met polymorphism was significantly associated with the risk of PD in Asians (AA vs others: OR = 1.58, 95 % CI 1.26-1.97, p < 0.001; GG vs AA: OR = 0.63, 95 % CI 0.47-0.85, p = 0.002; AA vs GA: OR = 1.58, 95 % CI 1.24-2.00, p < 0.001). In Japanese population, the homozygote AA tends to increase the risk of PD (AA vs others: OR = 1.54, 95 % CI 1.10-2.15, p = 0.012; AA vs GA: OR = 1.61, 95 % CI 1.14-2.29, p = 0.008). This study showed that the Val158Met polymorphism of COMT gene may be associated with PD in Japanese rather than Chinese population. Further studies are needed to confirm this association in more ethnicities.

Indexed as

Genetic Predisposition to DiseasePolymorphism, GeneticAsian PeopleCatechol O-MethyltransferaseChinaHumansJapanParkinson DiseaseRiskCatechol O-MethyltransferaseCOMT protein, human

Identifiers

PMID25060648
OpenAlexW2073310663

What OpenQuestion holds

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Registered trials

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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.