Genome-wide genotyping in Parkinson's disease and neurologically normal controls: first stage analysis and public release of data.
BACKGROUND
Several genes underlying rare monogenic forms of Parkinson's disease have been identified over the past decade. Despite evidence for a role for genetics in sporadic Parkinson's disease, few common genetic variants have been unequivocally linked to this disorder. We sought to identify any common genetic variability exerting a large effect in risk for Parkinson's disease in a population cohort and to produce publicly available genome-wide genotype data that can be openly mined by interested researchers and readily augmented by genotyping of additional repository subjects.


METHODS
We did genome-wide, single-nucleotide-polymorphism (SNP) genotyping of publicly available samples from a cohort of Parkinson's disease patients (n=267) and neurologically normal controls (n=270). More than 408,000 unique SNPs were used from the Illumina Infinium I and HumanHap300 assays.


RESULTS
We have produced around 220 million genotypes in 537 participants. This raw genotype data has been and as such is the first publicly accessible high-density SNP data outside of the International HapMap Project. We also provide here the results of genotype and allele association tests.


CONCLUSIONS
We generated publicly available genotype data for Parkinson's disease patients and controls so that these data can be mined and augmented by other researchers to identify common genetic variability that results in minor and moderate risk for disease.
Fung
Hon-Chung
HC
Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892, USA.
Scholz
Sonja
S
Matarin
Mar
M
Simón-Sánchez
Javier
J
Hernandez
Dena
D
Britton
Angela
A
Gibbs
J Raphael
JR
Langefeld
Carl
C
Stiegert
Matt L
ML
Schymick
Jennifer
J
Okun
Michael S
MS
Mandel
Ronald J
RJ
Fernandez
Hubert H
HH
Foote
Kelly D
KD
Rodríguez
Ramón L
RL
Peckham
Elizabeth
E
De Vrieze
Fabienne Wavrant
FW
Gwinn-Hardy
Katrina
K
Hardy
John A
JA
Singleton
Andrew
A
D000368:Aged; D000369:Aged, 80 and over; D002874:Chromosome Mapping / Q000379:methods; D015331:Cohort Studies; D030541:Databases, Genetic / Q000706:statistics & numerical data; D005260:Female; D005787:Gene Frequency; D023281:Genomics; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000453:epidemiology* / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*