Xun Han

Publications (3)4.21 Total impact

• Article: Association of P2X7 receptor gene polymorphisms with sporadic Parkinsons disease in a Han Chinese Population.

  Hongxin Liu, Xun Han, Yongsheng Li, Haiqiang Zou, Anmu Xie
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  ABSTRACT: Previous studies have indicated that genetic polymorphisms in the P2X7 receptors may influence the occurrence and development of sporadic Parkinson's diseases (PD). In our study, two DNA polymorphisms at P2X7 receptor gene: 1513 A>C (rs3751143) and 1729T>A (rs1653624) were examined by PCR-RFLP analysis in 285 sporadic patients and 285 healthy controls in Han Chinese Population. For 1513 A>C polymorphism, there were significant differences in genotype distribution in PD group and late-onset PD (LOPD) group relative to the control groups respectively (P=0.015 and P=0.032, respectively),as well as between male PD and the controls subgroup (P=0.031). However, there were no significant differences in the genotype and allele frequencies of 1729T>A polymorphism between groups. Our study revealed that the P2X7 receptors 1513 A>C polymorphism is a risk factor for sporadic PD, LOPD and male PD in Han Chinese population, while 1729T>A polymorphism is not significantly associated with Parkinson's disease.
  Neuroscience Letters 05/2013; · 2.11 Impact Factor
• Article: [Association of vitamin D receptor gene polymorphisms with Parkinson disease].

  Hongxin Liu, Xun Han, Xueping Zheng, Yongsheng Li, Anmu Xie
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  ABSTRACT: Vitamin D receptor (VDR) has been proposed as a candidate gene for susceptibility to Parkinson's disease (PD). This study was set to assess the association between VDR gene Apa I and Taq I polymorphisms and PD in a Chinese Han population. Two hundred and eighty five sporadic PD patients and 285 healthy controls were genotyped for the Apa I and Taq I polymorphisms in VDR gene using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. No significant difference was detected in genotype or allele distribution of both Apa I and Taq I polymorphisms between PD patients and controls (P U+003E 0.05). No TT genotype for Taq I was found in the studied population. For Taq I, the distribution of genotype was significantly different between male PD patients and controls (U+03C7 =4.187, P=0.032, OR=2.149, 95%CI: 1.011-4.567), and the frequency of T allele was significantly higher in male PD patients than male controls (U+03C7 2=3.867, P=0.036, OR=2.064, 95%CI: 0.989-4.307). VDR gene Apa I polymorphisms are not associated with sporadic Parkinson's disease, but Taq I may be a risk factor for male PD.
  Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics 02/2013; 30(1):13-6.
• Article: Vitamin D receptor gene polymorphism and its association with Parkinson's disease in Chinese Han population.

  Xun Han, Li Xue, Yongsheng Li, Biao Chen, Anmu Xie
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  ABSTRACT: Vitamin D plays an important role in neurodegenerative disorders as a crucial neuro-immunomodulator, and accumulating data have provided evidence for that vitamin D receptor (VDR) gene is a candidate gene for susceptibility to Parkinson's disease (PD). In this study, we performed a case-control study to demonstrate whether the risk for the development of onset of sporadic PD might be influenced by VDR gene polymorphisms in a Chinese cohort. Two hundred and sixty PD patients and 282 matched-healthy controls were genotyped for two representative single nucleotide polymorphisms (SNPs) in VDR gene (FokI C/T and BsmI G/A) by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) analysis in. Results from our study revealed that FokI C allele carriers were likely to associate with an increased risk of PD (P=0.004) as well as early-onset PD (EOPD) (P=0.010). Moreover, the frequency of FokI C allele was significantly increased in PD group and late-onset PD (LOPD) group relative to the control groups respectively (P=0.023 and P=0.033, respectively). For BsmI polymorphisms, no significant difference in genotype or allele distribution was found between PD patients and the controls, as well as gender- and age-related differences between PD patients and the controls subgroup. This study demonstrated a possible association between the VDR FokI T/C polymorphism and PD, indicating that VDR polymorphisms may well change genetic susceptibility to sporadic PD in a Han Chinese population.
  Neuroscience Letters 07/2012; 525(1):29-33. · 2.11 Impact Factor