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目的:探讨氯吡格雷联合丹参酮Ⅱn A磺酸钠注射液治疗冠心病心绞痛的疗效及其对血管内皮功能和微炎性反应状态的影响。n 方法:选取2015年6月至2019年6月浙江省磐安县人民医院收治的冠心病心绞痛患者100例,按治疗方法的不同分为试验组和对照组,每组50例,两组均给予常规对症治疗,对照组在常规治疗基础上联合氯吡格雷75 mg/次,1次/d,阿司匹林肠溶片150 mg/次,1次/d,试验组在常规治疗基础上给予氯吡格雷75 mg/次,1次/d,联合丹参酮Ⅱn A磺酸钠注射液60 mg加入5%葡萄糖溶液配制250 ml静脉滴注,每天1次。治疗4周为1个疗程。比较两组治疗后心绞痛发作次数、持续时间和疗效,同时检测两组治疗前后血管内皮相关细胞因子和外周血CDn 4+ Foxpn 3+ Treg细胞表达率的改善水平,并进行比较。n 结果:两组治疗前心绞痛发作次数和持续时间比较差异无统计学意义(n P>0.05);治疗后两组患者心绞痛发作次数和持续时间均较治疗前显著减少,且试验组治疗后心绞痛发作次数和持续时间均低于对照组[(0.4 ± 0.1)次/d比(0.6 ± 0.2)次/d、(3.4 ± 1. 2) min/次比(5.8 ± 1.2) min/次],差异有统计学意义(n P0.05)。治疗前两组患者血浆一氧化氮(NO)、内皮素(ET)、血栓调节蛋白(TM)含量和CDn 4+ Foxpn 3+ Treg细胞阳性表达率比较差异无统计学意义(n P>0.05);治疗后,两组NO、TM水平均较治疗前显著增加,ET、CDn 4+Foxpn 3+ Treg细胞阳性表达率显著下降,差异有统计学意义(n P0.05). After treatment, the levels of NO, TM in two groups increased and the levels of ET, CDn 4+Foxpn 3+ Treg in two groups decreased, and there were significant differences (n P<0.05). The levels of NO, TM in test group were higher than those in control group [(82.5 ± 5.1) ng/L vs. (71.9 ± 4.) ng/L, (32.4 ± 3.6) μmol/L vs. (25.2 ± 3.6) μmol/L], the levels of ET, CDn 4+Foxpn 3+ Treg in test group were lower than those in control group [(39.4 ± 5.2) μmol/L vs. (46.7 ± 5.4) μmol/L, (9.4 ± 1.8)% vs. (10.6 ± 1.7)%], and there were significant differences ( n P<0.05).n Conclusions:Sodium tanshinone ⅡA sulfonate injection combined with clopidogrel in the treatment of angina pectoris can improve cardiovascular endothelial function, inhibit myocardial inflammation and immune response.