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  • Title: The relationship between monoamine oxidase B (MAOB) A644G polymorphism and Parkinson disease risk: a meta-analysis.
    Author: Liu Y, Wang Z, Zhang B.
    Journal: Ann Saudi Med; 2014; 34(1):12-7. PubMed ID: 24658549.
    Abstract:
    BACKGROUND AND OBJECTIVES: Many studies were conducted to assess the relationship between Monoamine oxidase B (MAOB) A644G polymorphism and susceptibility to Parkinson disease (PD). However, the results were inconsistent and inconclusive. DESIGN AND SETTINGS: A meta-analysis was conducted from all published studies on the associations between monoamine oxidase B (MAOB) A644G polymorphism and Parkinson disease. METHODS: In this present study, the possible relationship between MAOB A644G polymorphism and PD risk was assessed by a meta-analysis. Eligible articles were identified for the period up to March 2013. Pooled odds ratios (OR) with 95% confidence intervals (CI) were appropriately derived from fixed-effects models. RESULTS: Twenty case-control studies with a total of 2846 cases and 3508 controls were eligible. In a recessive model, MAOB A644G polymorphism was associated with PD risk (OR=1.32, 95% CI 1.18-1.47, P < .001). Subgroup analyses by ethnicity and gender also found significant relationships between this polymorphism and PD risk. CONCLUSION: This meta-analysis suggested that MAOB A644G polymorphism may be associated with PD development.
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