This study sought to explore the relationship between cytochrome P450 2C19(CYP2C19)*2/*3 polymorphisms and the development of coronary heart disease(CHD),and to evaluate the influence of the single nucleotide polymorphisms(SNPs)on the occurrence of adverse clinical events in CHD patients.A total of 231 consecutive patients candidate for percutaneous coronary intervention genotyped for CYP2C19*2(681G>A)and*3(636G>A)polymorphisms were enrolled.The adverse clinical events were recorded during a follow-up period of 14 months.The incidence of CHD,according to coronary angiography,was significantly higher(P=0.025)in CYP2C19*2 carriers group.Stepwise binary logistic regression analysis revealed that among factors that potentially influenced the presence of CHD(age>60 years,gender,BMI,etc.),CYP2C19*2 carriers(OR 1.94,95%CI:1.08-3.50,P=0.028)and male gender(OR 2.74,95%CI:1.58-4.76,P=0.001)were independent predictors,which were associated with the presence of CHD.The follow-up results showed that the incidence of adverse cardiovascular events within 14 months of discharge was significantly higher in the CYP2C 19*2 carriers than in the non-carriers(21.6%vs.6.3%,P=0.019).The results of the multivariate Cox proportional hazards model showed that CYP2C19*2 loss-of-flinction was the only independent factor which predicted the coronary events during the follow-up period of 14 months(OR=3.65,95%CI:1.09-12.25,P=0.036).The adverse impact of CYP2C19*2 polymorphisms was found not only in the risk of the presence of CHD,but also in the adverse cardiovascular events in CHD patients during the follow-up period of 14 months.However the same influence was not found in CYP2C19*3 mutation in Chinese Han population.
Ying-ying ZHANGXin ZHOUWen-jie JITing LIUJing MAYing ZHANGYu-ming LI
目的观察高盐摄入的小鼠循环单核细胞亚群的动态变化。方法雄性C57BL/6小鼠随机分为9 g/L Na Cl组、40 g/L Na Cl组和80 g/L Na Cl组。分别在处理前、处理后第4、8、12周,采用尾动脉测压法测定小鼠血压,高频小动物超声系统检测小鼠心功能,流式细胞术检测小鼠循环单核细胞亚群,心脏组织HE染色观察心脏病变情况。结果随着高盐饮食处理时间的延长,鼠尾收缩压呈现逐渐升高的趋势;与9 g/L Na Cl组相比,40 g/L Na Cl组和80 g/L Na Cl组小鼠射血分数(EF)呈先升高再降低的趋势,在第12周左室EF明显降低;40 g/L Na Cl组和80 g/L Na Cl小鼠循环淋巴细胞抗原6C高表达(Ly6C^(high))的单核细胞亚群比例均呈先升高再降低的趋势,在第12周时,降低明显;Ly6C^(low)单核细胞亚群的变化则与Ly6C^(high)单核细胞亚群呈相反的趋势,呈先降低再升高的趋势,在第12周时,明显升高;Ly6C^(int)单核细胞亚群无明显变化;心脏HE染色显示,与9 g/L Na Cl组相比,40 g/L Na Cl组和80 g/L Na Cl组心肌细胞直径明显变大。结论高盐摄入小鼠循环单核细胞亚群的比例发生动态变化。
