ATP结合盒转运子A1基因R219K的多态性与心房颤动相关性研究

目的 探讨ATP结合盒转运子A1基因(ABCA1)R219K的多态性与心房颤动(房颤)相关性.方法 选择250例房颤患者(房颤组)和250例非房颤者(对照组)为研究对象.采用聚合酶链式反应-限制性片段长度多态性测定ABCA1基因的多态性,并检测所有研究对象的C反应蛋白(CRP)和高密度脂蛋白胆固醇(HDL-C)血清浓度;比较两组不同基因型、不同等位基因的分布及CRP、HDL-C的血清浓度.结果 房颤组与对照组ABCA1 R219K RR 型、RK型、KK型基因型频率分别为42.0%、42.8 %、15.2%和34.0%、43.2%、22.8%,房颤组KK型明显低于对照组(P=0.03);房颤组与对照组R等位基因、K等位基因分布频率为63.4%、36.6%和55.6%、44.4 %,K等位基因分布频率在房颤组中较对照组明显降低(P=0.012);房颤组CRP浓度明显高于对照组(P=0.004),HDL-C浓度无明显差异;在不同基因型之间CRP、HDL-C浓度比较中发现,RR 基因型CRP 浓度显著高于KK型(P=0.013);而HDL-C浓度RR 基因型低于RK型和KK型(P 分别为 0.009、0.027).结论 房颤的炎性指标CRP显著升高;ABCA1 R219K位点K等位基因可能是房颤发生的一种保护因素.

Association of ATP-binding cassette transporter A1 R219K polymorphism with atrial fibrillation

Objective To investigate the association of ATP binding cassette transporter A1(ABCA1) gene R219K polymorphisms with atrial fibrillation(AF) in Chinese population.Methods A total of 250 patients with AF and 250 control subjects were selected.Polymerase chain reaction-restricted fragments length polymorphism(PCR-RFLP) was used to determine the ABCA1 genotype,and the serum concentration of C-reactive protein(CRP) and high-density lipoprotein cholesterol(HDL-C) were measured in all the subjects.Results The fre...