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JACC:心脏结构位点突变在房颤发生中起重要作用

2017-10-19 MedSci MedSci原创

全基因组关联分析(GWAS)已经发现与房颤相关的>30个基因位点的突变,其中就包括肌节基因MYH6 和MYL4的罕见突变位点.本研究旨在利用GWAS和心电图检测技术探索与房颤相关新的位点突变。本研究利用冰岛的全基因组数据对14255名房颤患者和374939名正常对照进行GWAS分析,并在2002名非冰岛患者和12324名正常对照上对新发位点进行验证。然而,在62974名研究对象上利用心电图技术检测

全基因组关联分析(GWAS)已经发现与房颤相关的>30个基因位点的突变,其中就包括肌节基因MYH6 和MYL4的罕见突变位点.本研究旨在利用GWAS和心电图检测技术探索与房颤相关新的位点突变。本研究利用冰岛的全基因组数据对14255名房颤患者和374939名正常对照进行GWAS分析,并在2002名非冰岛患者和12324名正常对照上对新发位点进行验证。然而,在62974名研究对象上利用心电图技术检测新发突变位点对心电功能的影响。最终,本研究发现了2个新发的突变位点,一个是基因LINC01142和METTL11B之间的单核苷酸多态性位点(rs72700114,位点频率 = 8.1%; [OR]: 1.26; p = 3.1 × 10-18),另一个是PLEC基因的错义突变p.Gly4098Ser(频率= 1.2%; OR: 1.55; p = 8.0 × 10-10),该基因编码的网蛋白是心脏组织细胞的细胞骨架成分。此外,本研究还在非房颤患者上发现了29个该位点的突变,对患者的心电功能有明显影响。研究结果显示,本研究发现的PLEC基因突变加上之前报道过的MYH6 和MYL4的突变,提示心肌

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    2018-04-06 hbwxf
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