## Abstract Parkinson's disease (PD) etiology has been attributed both to genetic and environmental factors. In this study, we investigated Brazilian early‐onset PD (EOPD) patients for mutations in __PARK2__ and __PARK8__, exposure to environmental factors and possible correlations between __PARK2_
ATP13A2 variants in early-onset Parkinson's disease patients and controls
✍ Scribed by Ana Djarmati; Johann Hagenah; Kathrin Reetz; Susen Winkler; Maria Isabel Behrens; Heike Pawlack; Katja Lohmann; Alfredo Ramirez; Vera Tadić; Norbert Brüggemann; Daniela Berg; Hartwig R. Siebner; Anthony E. Lang; Peter P. Pramstaller; Ferdinand Binkofski; Vladimir S. Kostić; Jens Volkmann; Thomas Gasser; Christine Klein
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 259 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0885-3185
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Four genes responsible for recessively inherited forms of Parkinson's disease (PD) have been identified, including the recently discovered ATP13A2 (PARK9) gene. Our objective was to investigate the role of this gene in a large cohort of PD patients and controls. We extensively screened all 29 exons of the ATP13A2 coding region in 112 patients with early‐onset PD (EOPD; <40 years) of mostly European ethnic origin and of 55 controls. We identified four carriers (3.6%) of novel single heterozygous ATP13A2 missense changes that were absent in controls. Interestingly, the carrier of one of these variants also harbored two mutations in the Parkin gene. None of the carriers had atypical features previously described in patients with two mutated ATP13A2 alleles (Kufor–Rakeb syndrome). Our data suggest that two mutated ATP13A2 alleles are not a common cause of PD. Although heterozygous variants are present in a considerable number of patients, they are—based on this relatively small sample—not significantly more frequent in patients compared to controls. © 2009 Movement Disorder Society
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