SNCA rs3822086 C>T Polymorphism Increases the Susceptibility to Parkinson's Disease in a Chinese Han Population

2015 
Objective: Protofibrils of alpha-synuclein mediate neuronal cell death and propagate Parkinson's disease (PD). In this study, we investigated the relationship between the rs3822086 C>T polymorphism located in the fourth intron of the alpha-synuclein (SNCA) gene and susceptibility to PD in a Chinese Han population. Methods: 146 PD patients and 144 sex- and age-matched healthy individuals (control group) were selected for this study. The SNCA rs3822086 polymorphism was examined in all 300 study subjects by polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) analysis. Results: The genotype and allele frequencies of the SNCA rs3822086 polymorphism showed significant differences between the PD group and control group (TT: 25.3% vs. 18.8%, p=0.035; CT+TT: 77.4% vs. 66.0%, p=0.031; T allele: 51.4% vs. 42.4%, p=0.030; respectively). Stratified analyses based on gender indicated that male PD patients exhibited higher genotype and allele frequencies of the SNCA rs3822086 polymorphism compa...
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