Genome-wide association study reveals genetic risk underlying Parkinson's disease.

Authors:
Javier Simón-Sánchez, Claudia Schulte, Jose M Bras, Manu Sharma, J Raphael Gibbs, Daniela Berg, Coro Paisan-Ruiz, Peter Lichtner, Sonja W Scholz, Dena G Hernandez, Rejko Krüger, Monica Federoff, Christine Klein, Alison Goate, Joel Perlmutter, Michael Bonin, Michael A Nalls, Thomas Illig, Christian Gieger, Henry Houlden, Michael Steffens, Michael S Okun, Brad A Racette, Mark R Cookson, Kelly D Foote, Hubert H Fernandez, Bryan J Traynor, Stefan Schreiber, Sampath Arepalli, Ryan Zonozi, Katrina Gwinn, Marcel van der Brug, Grisel Lopez, Stephen J Chanock, Arthur Schatzkin, Yikyung Park, Albert Hollenbeck, Jianjun Gao, Xuemei Huang, Nick W Wood, Delia Lorenz, Günther Deuschl, Honglei Chen, Olaf Riess, John A Hardy, Andrew B Singleton, Thomas Gasser
Year of publication:
2009
Volume:
41
Issue:
12
Issn:
1061-4036
Journal title abbreviated:
NAT GENET
Journal title long:
Nature genetics
Impact factor:
31.616
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.