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  • Title: Association of polymorphism in rs2736990 of the α-synuclein gene with Parkinson's disease in a Chinese population.
    Author: Pan F, Ding H, Dong H, Ye M, Liu W, Cui G, Chen J, Wu Y, Wang H, Dai X, Shi H, Ding X.
    Journal: Neurol India; 2013; 61(4):360-4. PubMed ID: 24005725.
    Abstract:
    BACKGROUND AND OBJECTIVE: Previous genetic studies in Parkinson's disease (PD) have provided conclusive evidence for association of genes with strong biological rationale for PD. Recently several studies in different populations have found a strong association between idiopathic PD and the single-nucleotide polymorphism (SNP) rs2736990, located within an intron of the α-synuclein (SNCA) gene. In this study, we aimed to verify these findings and to explore the characteristic of the association in a subset of Chinese Han PD patients. MATERIALS AND METHODS: A total of 515 unrelated patients with sporadic PD and 450 healthy ethnically matched control subjects were recruited consecutively for the study. Patients and healthy controls were genotyped for SNCA rs2736990 variant by polymerase chain reaction - ligase detection reaction. RESULTS: Our data showed a significant association between the rs2736990 polymorphism and PD, the frequency of the allele C in PD patients was significantly higher than that in controls (P = 0.017, OR = 1.26, 95% confident intervals (CI) =1.04-1.51). The distribution of C > T genotypes was different between patients and controls (P = 0.027). Furthermore, allele C of SNP rs2736990 in early-onset PD was significantly more frequent than that in healthy controls (P = 0.007, odds ratio = 1.60, 95% CI = 1.13-2.26). CONCLUSIONS: Our study demonstrated that SNCA rs2736990 C > T polymorphism was associated with susceptibility to PD in Chinese Han population. Further studies are needed to replicate the association we found.
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