Do polymorphisms in the familial Parkinsonism genes contribute to risk for sporadic Parkinson's disease?

Abstract

Recent whole genome association studies provided little evidence that polymorphisms at the familial Parkinsonism loci influence the risk for Parkinson's disease (PD). However, these studies are not designed to detect the types of subtle effects that common variants may impose. Here, we use an alternative targeted candidate gene approach to examine common variation in 11 genes related to familial Parkinsonism. PD cases (n = 331) and unaffected control subjects (n = 296) were recruited from three specialist movement disorder clinics in Brisbane, Australia and the Australian Electoral Roll. Common genetic variables (76 SNPs and 1 STR) were assessed in all subjects and haplotype, genotype, and allele associations explored. Modest associations (uncorrected P < 0.05) were observed for common variants around SNCA, UCHL1, MAPT, and LRRK2 although none were of sufficient magnitude to survive strict statistical corrections for multiple comparisons. No associations were seen for PRKN, PINK1, GBA, ATP13A2, HTRA2, NR4A2, and DJ1. Our findings suggest that common genetic variables of selected PD-related loci contribute modestly to PD risk in Australians.

DOI: 10.1002/mds.22214

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@article{Sutherland2009DoPI, title={Do polymorphisms in the familial Parkinsonism genes contribute to risk for sporadic Parkinson's disease?}, author={Greg T Sutherland and Glenda M Halliday and P. A. Silburn and F. Mastaglia and Dominic B Rowe and Richard S Boyle and John D. O'Sullivan and Tina Ly and Stephen D. Wilton and George Mellick}, journal={Movement disorders : official journal of the Movement Disorder Society}, year={2009}, volume={24 6}, pages={833-8} }