家族性偏瘫性偏头痛CACN A1A 基因新突变的研究

摘要

Objective To investigate the relationship between familial hemiplegic migraine (FHM ) with the mutation of CACNA1A gene .Methods Total genomic DNA of a family affected members and 1 000 normal controls was extracted for conduc‐ting the CACNA1A gene sequencing research and the bioinformatics analysis .Results The novel mutation site c .1168A>G of ex‐on located in CACNA1A gene led to Asn to be replaced with Asp (N390D) .Conclusion The mutation(N390D) of CACNA1A gene is a newly found novel pathogenic mutation lead to familial hemiplegic migraine .%目的：探索家族性偏瘫性偏头痛（FHM ）与CACNA1A基因突变的关系。方法通过提取一家系患者和健康人及1000例健康对照组DNA进行CACNA1A基因测序研究，并进行生物信息学分析。结果位于CACNA1A基因的8号外显子的新突变位点（c ．1168A＞ G）导致天门冬酰胺替换为天冬氨酸（N390D）。结论 CACNA1A基因突变 N390D是新发现的引起FHM的致病突变因素。