遗传 ›› 2007, Vol. 29 ›› Issue (10): 1207-1213.

• 研究报告 • 上一篇    下一篇

在亚洲和欧洲人群中对一个AC二核苷酸重复的多态性位点与精神分裂症的关联研究

马捷1,2, 樊金波1,2, 吴胜男1,2, 张长顺1,2, 纪宝虎1,2, 王磊1,2, 李兴旺1,2, 顾牛范3, 冯国鄞3, David St Clair4, 贺林1,2   

  1. 1. 上海交通大学 Bio-X 中心, 上海 200030;
    2. 中国科学院上海生命科学研究院营养科学研究所, 上海 200031;
    3. 上海市精神卫生中心, 上海 200030;
    4. Department of Mental Health, University of Aberdeen, Medical School, Foresterhill, Aberdeen, AB25 2ZD, UK

  • 收稿日期:2007-03-09 修回日期:2007-06-10 出版日期:2007-10-10 发布日期:2007-10-10
  • 通讯作者: 贺林

Association study of an (AC)n dinucleotide repeat and schizophrenia in Asian and European populations

MA Jie1,2, FAN Jin-Bo1,2, WU Sheng-Nan1,2, ZHANG Chang-Shun1,2, JI Bao-Hu1,2, WANG Lei1,2, LI Xing-Wang1,2, GU Niu-Fan<   

  1. 1. Bio-X Center, Shanghai Jiao Tong University, Shanghai 200030, China;
    2. Institute for Nutritional Sciences, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China;
    3. Shanghai Institute of Mental Health, Shanghai 200030, China;
    4. Department of Mental Health, University of Aberdeen, Medical School, Foresterhill, Aberdeen, AB25 2ZD, UK
  • Received:2007-03-09 Revised:2007-06-10 Online:2007-10-10 Published:2007-10-10
  • Contact: He Lin

摘要:

连锁研究表明, 染色体15q13~q14区域可能是精神分裂症的易感区域。在此项研究中, 使用来自中国和苏格兰的3套独立的样本, 对位于D15S118的AC二核苷酸重复的多态性位点与精神分裂症进行了关联分析。在苏格兰病例-对照样本中, 该多态性位点的等位基因在患者和正常人中的分布存在显著性差异(P = 0.04), 但是这一结果在中国的病例-对照组中没有得到重复。在中国三口之家的样本中, 我们没有观察到有等位基因从正常的父母向患病子女的传递不平衡。总之, 至少在中国人中,此结果不支持这个AC二核苷酸重复的多态性位点在精神分裂症的易感性中扮演重要的角色。后续的研究有必要进一步阐明在欧洲人中该多态性位点在精神分裂症的易感性中扮演的角色。

关键词: 传递不平衡(TDT), D15S118, α-7烟碱受体亚基基因(CHRNA7), 关联, 精神分裂症

Abstract:

Linkage studies have suggested that chromosome 15q13-q14 may harbor a susceptibility locus for schizophrenia. In the current study, the association between a (AC)n dinucleotide repeat polymorphism at D15S118 and schizophrenia was investigated using three independent samples from the Han Chinese population and the Scotland population. In the popula-tion-based study, a significant difference was found between the allele frequency distributions in schizophrenia patients and control subjects in the Scottish samples (P = 0.04), but was not replicated in the Chinese samples. In a family-based study, no significant transmission disequilibrium from heterozygous parents to affected offspring was observed. Overall, our re-sults did not support the hypothesis that the (AC)n dinucleotide repeat polymorphism plays a major role in schizophrenia susceptibility, at least in the Chinese population. Further studies are needed to elucidate its role in schizophrenia susceptibi- lity in European population.