Parkinson's Disease Research Today is a free monthly online journal that collates and summarizes the latest research about Parkinson's Disease, including details on symptoms, treatment, genetics, medication. | ||||||||
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Genetic association study of PINK1 coding polymorphisms in Parkinson's disease.Groen JL, Kawarai T, Toulina A, Rivoiro C, Salehi-Rad S, Sato C, Morgan A, Liang Y, Postuma RB, St George-Hyslop P, Lang AE, Rogaeva E Centre for Research in Neurodegenerative Diseases, Department of Medicine, University of Toronto, 6 Queen's Park Crescent West, Toronto, Ont., Canada M5S 3H2. Parkinson's disease (PD) is the most common neurodegenerative movement disorder with a substantial genetic component (which is more pronounced in earlier onset cases). In addition to three well-confirmed PD genes (SNCA, parkin and DJ-1), mutations in the PTEN Induced Kinase (PINK1) gene have recently been identified in families with recessive early onset PD. We tested the hypothesis that three common coding variations (Leu63Leu, Ala340Thr and Asn521Thr) could increase the risk of PD. We performed a case control association study in a series of 91 PD cases (Caucasian of Canadian origin) and 182 normal controls. The patients were largely pre-selected for having an early age of onset (<50 years) and/or a positive family history. Our results did not reveal any evidence of association between PD and any of the three SNPs at the allelic or genotypic levels (p > 0.25). Furthermore, we did not detect a modifying effect for any genotype upon the age of onset in the PD group (p > 0.19). Nevertheless, it remains to be evaluated whether PINK1 variations contribute to the risk of common late onset sporadic PD. Published 15 November 2004 in Neurosci Lett, 372(3): 226-9.
© 2004-2008 Parkinson's Disease Research Today. All Rights Reserved. |
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