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儿茶酚氧位甲基转移酶基因多态性与心境障碍的关联研究 被引量:4

Association study of catechol-O-methyltransferase gene polymorphisms and mood disorder
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摘要 目的 探讨中国汉族人 2 2号染色体儿茶酚O 甲基转移酶 (COMT)基因与心境障碍(MD)的关系。方法 应用聚合酶链反应和限制性片段长度多态性技术 ,检测 90例MD患者 (患者组 )、90名正常人 (对照组 )及 5个MD高发家系 (共 2 5名成员 )的COMT基因多态性 ;用改进的传递 /不平衡 (TDT)方法分析 5个高发家系COMT基因与MD的关系。结果  (1)患者组COMT等位基因A频率 (2 2 78% )低于对照组 (35 0 0 % ) ,等位基因G频率 (77 2 2 % )高于对照组 (6 5 0 0 % ) ,差异均有非常显著性 (P =0 0 1)。按性别比较 ,等位基因A和G频率在两组男性之间的差异均无显著性 (P =0 10 ) ,而两组女性间的差异则具显著性 (P <0 0 5 )。 (2 )COMT基因A/A基因型频率两组的差异无统计学意义 (P =0 73) ;但患者组及其男性和女性的A/G基因型频率 (分别为 34 4 4 %、33 33%和 35 5 6 % )均低于对照组 (分别为 6 1 11%、6 0 0 0 %和 6 2 2 2 % ;P =0 0 0 ) ;患者组及其男性和女性的G/G基因型频率(分别为 6 0 0 0 %、6 0 0 0 %和 6 0 0 0 % )均高于对照组 (分别为 34 4 4 %、35 5 6 %和 33 33% ;P =0 0 0、P=0 0 2和P =0 0 1)。 (3)用TDT方法分析 ,5个MD高发家系COMT基因与MD存在关联 (P =0 0 4 )。结论 MD患者组与正常对? ObjectiveTo explore the relationship between polymorphism of catechol-O-methyltransferase (COMT) gene and mood disorder in Chinese Han people. MethodsNinety Chinese Han patients with mood disorder and 90 normal control and five multiplex families with mood disorder were involved in the study. The COMT gene polymorphisms were determined with the polymerase chain reaction and restriction fragment length polymorphism technique. ResultsThe frequencies of COMT (A/G and G/G) genotype were significantly different ( P <0.01) between patients and normal controls. The transmission/disequilibrium test showed that the COMT gene was associated with mood disorder ( P <0.05) in the five pedigrees.ConclusionThe results suggest that there might be a susceptibility gene to mood disorder on chromosome 22 (22q11.2).
出处 《中华精神科杂志》 CAS CSCD 北大核心 2003年第2期65-68,共4页 Chinese Journal of Psychiatry
基金 深圳市科技局科技三项经费资助项目 (19990 40 65 2 0 0 10 40 82 )
关键词 儿茶酚氧位甲基转移酶 基因多态性 心境障碍 情感障碍 Affective disorders,psychotic Catechol O-methyltransferase Polymorphism (Genetics) Case-control studies
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参考文献12

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同被引文献26

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