中国儿童保健杂志 ›› 2011, Vol. 19 ›› Issue (3): 222-223.

• 科研论著 • 上一篇    下一篇

儿童注意缺陷多动障碍COMT基因多态性的对照研究

熊忠贵1,胡新文1,徐海青1,王凤1,石淑华2   

  1. 1 湖北省妇幼保健院,湖北 武汉 430070;
    2 华中科技大学同济医学院,湖北 武汉 430030
  • 收稿日期:2010-11-29 发布日期:2011-03-06 出版日期:2011-03-06
  • 作者简介:熊忠贵(1965-),男,主任医师,博士研究生,主要从事儿童保健、儿童心理行为问题研究
  • 基金资助:
    湖北省卫生厅青年科技人才基金资助项目(QJX2005-12)

Controlled study of polymorphism of catechol-O-methyltransferase gene on children with attention deficit hyperactivity disorder

XIONG Zhong-gui1, HU Xin-wen1, XU Hai-qing1, WANG Feng1, SHI Shu-hua2   

  1. 1 Hubei Maternal and Child Health Care Hospital, Wuhan, Hubei 430070, China;
    2 Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
  • Received:2010-11-29 Online:2011-03-06 Published:2011-03-06

摘要: 【目的】 分析儿童注意缺陷多动障碍(attention deficit hyperactivity disorder, ADHD)与儿茶酚-O-甲基转移酶(catechol-O-methyltransferase, COMT)基因第158位密码子G→A点突变所引起的缬氨酸→甲硫氨酸(Val158Met)的错义突变多态性的关系。 【方法】 采用实时荧光定量PCR技术,分析了110例ADHD儿童与90例正常儿童COMT基因Val158Met多态性的位点频率。 【结果】 病例组A等位基因的频率为22.73%,而对照组为23.33%,两组差异无统计学意义(χ2=0.021,P>0.05)。COMT各基因型的分布频率在病例组和对照组之间差异也无统计学意义(χ2=3.668,P>0.05)。 【结论】 COMT基因Val158Met多态性可能与儿童ADHD无关联。

关键词: 注意缺陷多动障碍, 儿茶酚-O-甲基转移酶, 遗传多态性

Abstract: 【Objective】 To analyze the correlation between attention deficit hyperactivity disorder(ADHD) in children and Val158Met polymorphism of catechol-O-methyltransferase(COMT) gene caused by the missense mutation of G158A. 【Methods】 The Val158Met polymorphism of COMT gene was tested in 110 children with ADHD and 90 non-ADHD by using quantitative PCR technique. 【Results】 The frequencies of A allele were 22.73% and 23.33% in case and controlled group respectively, which showed no significant difference between the two groups(χ2=0.021,P>0.05). There was also no significant difference in the distribution of all genotypes of COMT gene between the two groups(χ2=3.668,P>0.05). 【Conclusions】 It is suggested that there is no association between ADHD in children and Val158Met polymorphism of COMT gene in this study.

Key words: attention deficit hyperactivity disorder, catechol-O-methyl transferase, genetic polymorphism

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