Journal
PARKINSONISM & RELATED DISORDERS
Volume 29, Issue -, Pages 42-46Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.parkreldis.2016.05.032
Keywords
Parkinson's disease; CHCHD2; Oxidative stress
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Funding
- Sichuan Key Project of Science and Technology [2010SZ0086]
- Sichuan Province Applied Basic Research Program [04JY029-075-3]
- National Natural Science Foundation of China [81471300]
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Backgound: Building on recent evidence linking the CHCHD2 gene to both familial and sporadic Parkinson's disease (PD), we carried out a case-control study to examine possible associations between the CHCHD2 gene and PD. Method: We sequenced all four coding regions, exon-intron boundaries, untranslated regions and flanking regions of CHCHD2 in 30 patients with familial disease, 554 patients with sporadic disease and 594 healthy controls. All subjects were Han Chinese from western China. Results: We detected the exonic variants p.Pro2Leu, p.Argl8GIn and p.Arg145GIn in six patients with sporadic PD respectively. The p.Pro2Leu variant was more frequent in patients than in controls, but the difference was not significant (OR 2149, 95%Cl 0393 to 11.753, p = 0.366). Meta-analysis of our data with studies in the literature showed that p.Pro2Leu variants were associated with sporadic PD (OR 2.51, 95%Cl 1.53 to 4.11, p = 0.0002), especially in Asian populations (OR 2.92, 95%CI 1.68 to 5.07, p = 0.0001). Conclusion: Our results suggest that CHCHD2 exonic variants are rare among Chinese patients with PD. Meta-analysis of the literature, however, suggests that p.Pro2Leu variants are associated with sporadic disease, particularly in Asian populations. (C) 2016 Elsevier Ltd. All rights reserved.
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