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家族性扩张型心肌病分子遗传学研究进展 被引量:3

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摘要 心肌病分为扩张型心肌病( DCM )、肥厚型心肌病、限制型心肌病和致心律失常型右室心肌病。 DCM主要是一种以心腔扩大、心肌收缩功能障碍为主要特征的心肌疾病,临床常表现为进行性充血性心力衰竭、心律失常、血栓栓塞甚至猝死,是心血管疾病中导致死亡和心脏移植的主要基础疾病。其病因和发病机制至今尚不清楚,可以为特发性、病毒感染、家族或遗传性、免疫性、酒精性或中毒性、围生期等。如果DCM患者家族中有两个或以上家族成员患有特发性DCM(IDCM),则将其定义为家族性DCM(FDCM)。 IDCM诊断的统一意见:一级亲属中至少有20%~35%的成员发病,其中涉及31个常染色体及2个X染色体关联染色体的点突变,但这些点突变仅占引起DCM基因突变的30%~35%〔1〕。 FDCM在DCM中的比例高达35%~48%〔2,3〕。而徐军等〔4〕报道FDCM的发生比例仅为8.8%。有研究〔5〕提示FDCM预后较散发DCM差,6年生存率分别为6%和23%。5年生存率分别为51.5%和55.7%。遗传学研究认为遗传缺陷在FDCM发病中起重要作用。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2014年第9期2599-2602,共4页 Chinese Journal of Gerontology
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参考文献12

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二级参考文献75

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