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儿童失神癫痫〖WTBX〗〖STBX〗CACNA1H〖STBZ〗基因突变筛查和分析

梁建民1,5,张月华1,王菊莉1,潘 虹1,吴沪生2,许克铭3,刘晓燕1,姜玉武1,沈 岩4,吴希如1   

  1. 1.北京大学第一医院儿科, 北京 100034;2.北京市儿童医院神经科, 北京 100045;3.首都儿科研究所神经科, 北京 100020;4.中国协和医科大学基础医学研究所国家医学分子生物学实验室, 北京 100005;5.吉林大学第一
  • 收稿日期:2006-06-29 修回日期:1900-01-01 出版日期:2007-05-28 发布日期:2007-05-28
  • 通讯作者: 吴希如

Screening and analysis on variants in CACAN1H gene in childhood absence epilepsy

LIANG Jian-min1,5,ZHANG Yue-hua1,WANG Ju-li1,PAN Hong1,WU Hu-sheng2,XU Ke-ming3,LIU Xiao-yan1,JIANG Yu-wu1,SHEN Yan4,WU Xi-ru1   

  1. 1.Department of Pediatrics,First Hospital,Peking University,Beijing 100034 China; 2.Department of Neurology,Beijing Children’〖KG-*3〗s Hospital,Beijing 100045 China; 3.Department of Neurology,Capital Institute of Pediatrics,Beijing 100020,China;4.National Laboratory of Medical Molecular Biology,Institute of Basic Medical Sciences,Chinese Academy of Medical Sciences/Peking Union Medical College,Beijing 100005, China; 5.Department of Pediatrics,Jilin University
  • Received:2006-06-29 Revised:1900-01-01 Online:2007-05-28 Published:2007-05-28
  • Contact: WU Xi-ru

摘要: 目的:明确T型钙通道CACNA1H基因变异与儿童失神癫痫(CAE)的关系。方法:对100个中国汉族CAE核心家系CACNA1H基因的外显子6~12及其相邻的部分内含子进行PCR 产物测序、基因突变筛查和分析。结果:仅在32例CAE患儿中发现14个序列变异,包括2个错义突变、3个同义突变和9个内含子变异,其中12个为新发现的变异。在191例性别匹配的正常对照中未发现这些变异。位于第11内含子的单核苷酸多态性(SNPs)位点52037C>T在17例彼此无亲缘关系CAE患儿中出现,且在CAE核心家系中存明显的传递不平衡(χ2=9.783,P=0.001 76)。结论:CACNA1H基因可能是中国汉族CAE 的重要易感基因。

关键词: 钙通道, T型, 基因转变, 多态性, 单核苷酸

Abstract: Abstract:Objective To identify the relationship between the CACNA1H gene and childhood absence epilepsy(CAE).Methods Exons 6 to 12 of CACNA1H gene were sequenced in 100 CAE trios of Han population in China.Variants in these regions were then analyzed.Results Fourteen variants were identified only in 32 CAE patients that were not present in 191 normal gender-matched controls.Twelve of them had not been previously reported.These 14 variants included 2 nonsynonymous variants,3 synonymous variants,9 intronic variants,including a single nucleotide polymorphism (SNP) 52037C>T in intron11 found in 17 CAE patients.The result of transmission disequilibrium test (TDT) indicated that 52037C>T in intron11 was in significant transmission disequilibrium in CAE trios(χ2=9.783,P=0.001 76).Conclusion CACNA1H is a susceptibility gene for CAE in the Chinese Han population.

Key words: calcium channels, T-type, gene conversion, polymorphism, single nucleotide

中图分类号: 

  • R749.1+7