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Title: Genome-wide association study reveals genetic risk underlying Parkinson's disease.
Authors: Simón-Sánchez J,  Schulte C,  Bras JM,  Sharma M,  Gibbs JR,  Berg D,  Paisan-Ruiz C,  Lichtner P,  Scholz SW,  Hernandez DG,  Krüger R,  Federoff M,  Klein C,  Goate A,  Perlmutter J,  Bonin M,  Nalls MA,  Illig T,  Gieger C,  Houlden H,  Steffens M,  Okun MS,  Racette BA,  Cookson MR,  Foote KD,  Fernandez HH,  Traynor BJ,  Schreiber S,  Arepalli S,  Zonozi R,  Gwinn K,  van der Brug M,  Lopez G,  Chanock SJ,  Schatzkin A,  Park Y,  Hollenbeck A,  Gao J,  Huang X,  Wood NW,  Lorenz D,  Deuschl G,  Chen H,  Riess O,  Hardy JA,  Singleton AB,  Gasser T
Journal: Nat Genet
Date: 2009 Dec
Branches: CGR, NEB
PubMed ID: 19915575
PMC ID: PMC2787725
Abstract: We performed a genome-wide association study (GWAS) in 1,713 individuals of European ancestry with Parkinson's disease (PD) and 3,978 controls. After replication in 3,361 cases and 4,573 controls, we observed two strong association signals, one in the gene encoding alpha-synuclein (SNCA; rs2736990, OR = 1.23, P = 2.24 x 10(-16)) and another at the MAPT locus (rs393152, OR = 0.77, P = 1.95 x 10(-16)). We exchanged data with colleagues performing a GWAS in Japanese PD cases. Association to PD at SNCA was replicated in the Japanese GWAS, confirming this as a major risk locus across populations. We replicated the effect of a new locus detected in the Japanese cohort (PARK16, rs823128, OR = 0.66, P = 7.29 x 10(-8)) and provide supporting evidence that common variation around LRRK2 modulates risk for PD (rs1491923, OR = 1.14, P = 1.55 x 10(-5)). These data demonstrate an unequivocal role for common genetic variants in the etiology of typical PD and suggest population-specific genetic heterogeneity in this disease.