Association between ubiquitin carboxy-terminal hydrolase-L1 S18Y variant and risk of Parkinson's disease: the impact of ethnicity and onset age.
Neurol Sci
; 36(2): 179-88, 2015 Feb.
Article
in En
| MEDLINE
| ID: mdl-25370916
ABSTRACT
The Ubiquitin carboxy-terminal hydrolase-L1 (UCHL1) is a candidate risk gene for Parkinson' disease (PD), and a function SNP (rs5030732) in the coding region of this gene has been studied for the association with the disease extensively among worldwide populations, but the results were inconsistent and controversial. Here, to estimate the association between UCHL1 S18Y polymorphism and risk of PD in general population, we conducted a systematic meta-analysis by combining all available case-control subjects in Asian, European, and American populations, with a total of 7742 PD cases and 8850 healthy controls, and the pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) for UCHL1 S18Y polymorphism and PD were calculated using the Mantel-Haenszel method with a fixed- or random-effects model. Subgroup analysis was also performed in different onset age-matched groups. Among high-quality studies, UCHL1 S18Y polymorphism was moderately associated with the risk of PD (allele contrasts, OR = 1.063, 95% CI 1.008-1.122; p = 0.024; regressive genetic model, OR = 1.078, 95% CI 1.005-1.157; p = 0.035). When stratifying for ethnicity, none association were observed in subgroups. Analysis of early-onset PD (EOPD) and late-onset PD (LOPD) revealed that the polymorphism was not associated with the risk of PD. In conclusion, our meta-analysis suggests that UCHL1 S18Y polymorphism is moderately associated with susceptibility to PD, and more studies are needed to confirm our conclusion.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Parkinson Disease
/
Genetic Predisposition to Disease
/
Polymorphism, Single Nucleotide
/
Ubiquitin Thiolesterase
Type of study:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
/
Systematic_reviews
Limits:
Humans
Country/Region as subject:
America do norte
Language:
En
Journal:
Neurol Sci
Journal subject:
NEUROLOGIA
Year:
2015
Type:
Article
Affiliation country:
China