Abstract
Studies of the relationship between Parkinson's disease (PD) and rs9652490 SNP in LINGO1 gene have reported inconsistent results. To assess the association between the variant and PD risk, a meta-analysis from 12 case–control studies was performed. A total of 6053 PD cases and 5997 controls in 4 studies among Asians and 8 studies among non-Asians were included. The overall and geographic subgroups analysis was conducted, and odds ratios (OR) and 95% confidence intervals (95%CI) were calculated in the fixed-effects or random-effects model. The combined results of overall analysis showed a lack of association of rs9652490 and PD (fixed-effects model, OR 1.00, 95%CI 0.94–1.06), no matter what genetic model of rs9652490. The separate analysis in patients of Asian origin or non-Asian origin also failed to show any ethnic-dependent association. In conclusion, the present meta-analysis does not support the notion that LINGO1 rs9652490 SNP is a major genetic risk factor for PD.
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