title: Parkinson's disease and CYP2D6 polymorphism in Asian populations: A meta-analysis.
abstract: Polymorphism of CYP2D6 and its relationship with the development of Parkinson's disease (PD) has been controversial. The distribution of the B-mutation of CYP2D6, a mutation that results in the absence of a functional protein, differs by ethnicity and accounts for less than 1% of the 'poor metabolizer' phenotype in Asians. Thus, a meta-analysis was conducted to determine if polymorphism, other than the B-mutation, within the CYP2D6 gene confers a greater susceptibility to PD outcome among Asian populations. Eleven studies were identified, two of which were excluded due to unavailability in the English language or availability of the same original data in more detail in another publication. None of the studies showed a statistically significant association between CYP2D6 polymorphism and PD (p<0.05). The overall odds ratio was 0.84 (95% confidence interval 0.66-1.08). We conclude that among Asian populations, there is no convincing evidence of an association between CYP2D6 polymorphism and the risk of developing PD.
authors.affiliation: Department of Bioactive Molecules, National Institute of Infectious Diseases, Tokyo, Japan.
authors.forename: Amanda S
authors.initials: AS
authors.lastname: Persad
authors.forename: Todd
authors.initials: T
authors.lastname: Stedeford
authors.forename: Seigo
authors.initials: S
authors.lastname: Tanaka
authors.forename: Liping
authors.initials: L
authors.lastname: Chen
authors.forename: Marek
authors.initials: M
authors.lastname: Banasik
mesh_terms: D044466:Asian People / Q000235:genetics*; D019389:Cytochrome P-450 CYP2D6 / Q000235:genetics*; D020022:Genetic Predisposition to Disease / Q000235:genetics; D006801:Humans; D010300:Parkinson Disease / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*
chemical_list: D019389:Cytochrome P-450 CYP2D6