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  • Title: SNP rs7684318 of the alpha-synuclein gene is associated with Parkinson's disease in the Han Chinese population.
    Author: Yu L, Xu P, He X, Hu F, Lin Z, Zhu M, Liu Z, He L, Xu Y.
    Journal: Brain Res; 2010 Jul 30; 1346():262-5. PubMed ID: 20513365.
    Abstract:
    Mutations in the alpha-synuclein (SNCA) gene have been shown to be responsible for a rare familial form of Parkinson's disease (PD). Furthermore, polymorphic variants in multiple regions of the gene have been associated with susceptibility to idiopathic PD in different populations. Previous studies in Japanese have found a strong association between idiopathic PD and the single-nucleotide polymorphism (SNP) rs7684318, which is located within an intron of the SNCA gene. Our aim was to verify these findings and to further explore the nature of the association in a subset of Han Chinese PD patients. A case-control study of the SNP rs7684318, comprising 332 PD patients and 300 healthy controls, was carried out in Han Chinese populations from two centers in mainland China. The rs7684318 polymorphism was determined by PCR-restriction fragment length polymorphism (PCR-RFLP) analysis. The SNP rs7684318 of the SNCA gene showed a strong association with PD (P<0.01). Among our PD patients, mean age at disease onset and gender did not differ significantly between rs7684318 carriers and non-carriers. Our findings suggested that the SNP rs7684318 (T>C) transition of the SNCA gene contributes to PD susceptibility in Chinese Han population, which is consistent with the earlier study form Japan.
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