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- 2016
遗传性牙本质发育不全II型家系DSPP基因突变的检测与分析
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Abstract:
摘要 目的: 对2个汉族遗传性牙本质发育不全II型家系中的DSPP基因突变进行检测。方法: 对2个遗传性牙本质发育不全II型( DGI-II) 家系的成员进行全身基本情况及口腔专科检查,拍摄口内照,全景片,以及牙片,采集外周静脉血并抽提基因组DNA,应用PCR及DNA 测序技术,结合序列分析方法,对2个家系共15名家系成员(其中患者10名)的外周静脉血基因组DNA牙本质涎磷蛋白(DSPP)基因1~5号外显子及其邻近序列进行序列分析。结果: 家系A中的患者在DSPP的第2外显子发生错义突变c.50C>T(p.P17L);家系B的患者在DSPP第4外显子发生错义核苷酸改变c.506A>G(p.D169G)。结论: DSPP基因突变可能是导致两个DGI-II家系发病的分子基础。 [关键词] 牙本质发育不全II型( DGI-II) 牙本质涎磷蛋白(DSPP) 基因突
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