【摘要】 目的比较心肌型脂肪酸结合蛋白(H-FABP)、肌钙蛋白(C-TnI)、肌酸磷酸激酶同功酶(CK-MB)在早期心肌梗死诊断中的作用.方法将20只新西兰白兔随机分为手术组(n=12)和假手术组(n=8),手术组开胸结扎冠状动脉左前降支,假手术组开胸穿线不结扎冠状动脉,分别抽取手术前和术后1、2、3、4、6、8、10、24 h血液,均采用酶联免疫吸附试验法分别测定H-FABP、C-TnI、CK-MB浓度.结果两组间比较分别于术后1 h H-FABP差异有显著性(P<0.05),术后2 h cTnI差异有显著性(P<0.05),术后4 h CK-MB差异有显著性(P<0.05).H-FABP平均升高时间为1.4 h,比C-TnI(2.6 h)和CK-MB(4.0 h)提前(P<0.05).结论H-FABP在急性心肌梗死中比C-TnI和CK-MB提前升高,是一种有价值的急性心肌梗死早期诊断生化标志物.更多还原

【Abstract】 Objective To evaluate the diagnostic value of H-FABP、cTnI and CK-MB for early detection of acute myocardial infarction(AMI).Methods 20 New-Zealand rabbits were randomly divided into 2 groups:surgery group(MI group,n=12) and sham surgery group(control group,n=8).MI group was opened the chests and the anterior descending branches of the left coronary arteries(LAD) were ligated;in sham surgery group the sutures were passed under the LADs without ligation.Blood sampled before surgery and 1,2,3,4,6,8,10 and 24 h after surgery.H-FABP,cTnI and CK-MB were measured by ELISA respectively at the same time.Results The plasma concentrations of H-FABP 1 hour after surgery showed statistical difference between MI group and sham surgery group(P<0.05);The plasma concentrations of cTnI 2 hours after surgery showed statistical difference between MI group and sham surgery group(P<0.05);The plasma concentrations of CK-MB 4 hours after surgery showed statistical difference between MI group and sham surgery group(P<0.05).The mean increased time of H-FABP was 1.4 h,which was faster than cTnI(2.6 h) and CK-MB(4.0 h)(P<0.05).Conclusions H-FABP increased before cTnI and CK-MB in AMI,was a valuable biochemical marker for the early detection of AMI.更多还原