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机构地区:[1]天津市红桥区双环邨街社区卫生服务中心,天津300130
出 处:《医学综述》2016年第9期1808-1812,共5页Medical Recapitulate
摘 要:目的观察两种人类氧磷脂酶氨基酸变异体(Leu55Met和Gln192Arg多态性)与冠状动脉粥样硬化性心脏病(CHD)风险之间的关系。方法采用随机数字表法选择2010年7月至2012年10月在红桥区双环邨街社区服务中心进行心脏检查的303例个体作为研究对象,试验参与者需要接受心血管病检验(包括组织临床医师会诊、静息心电图、运动测试和超声心动图)。根据病史和(或)心脏检查结果进行CHD诊断。抽取外周血样,通过聚合酶链反应限制酶消化方法确定氧磷脂酶基因型。观察氧磷脂酶基因型对CHD发生的影响。结果试验群体中有43例(14.2%)CHD患者。通过基因检查发现Leu/Leu(LL)、Leu/Met(LM)和Met/Met(MM)基因型的个体比例分别为131例(43.2%)、128(42.2%)例和44例(14.5%);第192个密码子为Gln/Gln(QQ)、Gln/Arg(QR)和Arg/Arg(RR),基因型的个体分别为167例(55.1%)、118例(38.9%)和18例(5.9%)。其中Leu55Met与CHD的发生有密切关系(P=0.02),但Gln192Arg基因型对于CHD的发病没有影响(P=0.16)。Logistic回归分析提示,年龄(OR=1.06,95%CI 1.05~1.13)、吸烟(OR=2.86,95%CI 1.09~7.51)、高密度脂蛋白胆固醇(OR=0.94,95%CI 0.89~0.99)和氧磷脂酶LL基因型(OR=2.25,95%CI1.07~4.74)是CHD的重要预测指标。结论氧磷脂酶LL基因型是发生CHD的一个危险遗传因素。Objectlve To observe the possible relationship between the two human paraoxonase(PON) amino acid variants( the Leu55Met and the GIn192Arg polymorphism) and the risk of coronary heart disease (CHD). Methods Total of 303 participants from Hongqiao Shuanghuancun Street Community Service Cen- ter who received cardiovascular disease inspections ( including clinicians consultation, resting ECG, exercise testing and ultrasonic echocardiography) during Jul. 2010-Oct. 2012 were selected by random number table method as research objects. Diagnosis of CHD was done according to the disease history and/or heart exami- nation results. Then restriction enzyme digestion method was used for determining PON gene type by polymer- ase chain reaction from peripheral blood samples. The effect of PON gene type on the occurrence of CHD was observed. Results In the group there were 43 cases ( 14. 2% ) of CI-ID. Genetic testing found that Leu/Leu (LL) ,Leu/Met (LM) and Met/Met (MM) genotype case proportion was respectively 131 cases (43.2%), 128 cases (42. 2% ) and 44 cases ( 14. 5 % ) ; cases of 192nd codon of Gln/Gln ( QQ), Gln/Arg(QR) and Arg/Arg (RR) genotypes were 167 cases (55. 1% ) ,118 cases (38.9%) and 18 cases (5.9%) respec- tively. Leu55Met and CI-ID had close relationship (P = 0. 02 ), but the Gln192Arg genotype had no influence on the onset of CHD(P = 0. 16). Logistic regression analysis showed that age( OR = 1.06,95% CI 0. 77- 1.08 ), smoking ( OR = 2. 86,95 % CI 1.09-7.51 ), HDL cholesterol ( OR = 0. 94,95 % CI 0. 89-0.99 ) and PON LL genotype( OR = 2.25,95% CI 1.07-4. 74) were important predictors of CHD. Conclusion PON LL genotype is a genetic risk factor of CHD.
关 键 词:冠状动脉粥样硬化性心脏病 氧磷脂酶 多态性
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