Objective The purpose of this study is to investgate changes of cTnI in myocardial ischemic and reperfusion injury during correction of cardiac defects in children. Methods From June, 1999 to May,2000,45 children (30 ...Objective The purpose of this study is to investgate changes of cTnI in myocardial ischemic and reperfusion injury during correction of cardiac defects in children. Methods From June, 1999 to May,2000,45 children (30 male, 15 female) undergoing correction of cardiac defects were divided into three groups randomly: group Ⅰ no myocardial ischemia,group Ⅱ myocardial ischemia less than 60 minutes, group Ⅲmyocardial ischemia 】 60 minutes. There were no significant differences in the three groups in age, sex ratio, C/T ratio, or left ventricular function. Blood samples for analysis were collected before skin incision and at time intervals up to 6 days postoperatively. Analysis of creatine kinase MB.LDH and cardiac-specific troponin I was used for the detection of myocardial damage. Meantime, the ECG was checked for myocardial infarction. After the reperfusion, myocardial tissue was obtained from the free wall of right ventricle myocardial structure studies. Results The level of cTnI was increased展开更多
目的探讨加味丹参饮通过调节鸟氨酸脱羧酶(ODC)活性在抗SD大鼠心肌缺血再灌注损伤(IRI)中的保护机制。方法建立SD大鼠心肌IRI模型,设对照组、假手术组、缺血再灌注损伤(IRI)组、加味丹参饮(JWDSY)+IRI组共4组。酶联免疫(ELISA)法测定OD...目的探讨加味丹参饮通过调节鸟氨酸脱羧酶(ODC)活性在抗SD大鼠心肌缺血再灌注损伤(IRI)中的保护机制。方法建立SD大鼠心肌IRI模型,设对照组、假手术组、缺血再灌注损伤(IRI)组、加味丹参饮(JWDSY)+IRI组共4组。酶联免疫(ELISA)法测定ODC含量,实时荧光定量PCR(RT-PCR)方法检测ODC m RNA表达水平,免疫印迹(Western blot)法检测ODC蛋白表达水平,高效液相色谱检测心肌组织中多胺的含量。结果与对照组比较,假手术组的ODC含量、ODC m RNA及蛋白表达水平均无统计学意义(P>0.05);与假手术组比较,IRI组的ODC含量显著增加、ODC m RNA及蛋白表达水平显著升高,差异有统计学意义(P<0.01);与IRI组比较,JWDSY+IRI组ODC含量显著减少,ODC m RNA和蛋白表达水平显著降低,差异有统计学意义(P<0.01)。结论加味丹参饮可能通过调节ODC活性,从而发挥对IRI后心肌的保护作用。展开更多
文摘Objective The purpose of this study is to investgate changes of cTnI in myocardial ischemic and reperfusion injury during correction of cardiac defects in children. Methods From June, 1999 to May,2000,45 children (30 male, 15 female) undergoing correction of cardiac defects were divided into three groups randomly: group Ⅰ no myocardial ischemia,group Ⅱ myocardial ischemia less than 60 minutes, group Ⅲmyocardial ischemia 】 60 minutes. There were no significant differences in the three groups in age, sex ratio, C/T ratio, or left ventricular function. Blood samples for analysis were collected before skin incision and at time intervals up to 6 days postoperatively. Analysis of creatine kinase MB.LDH and cardiac-specific troponin I was used for the detection of myocardial damage. Meantime, the ECG was checked for myocardial infarction. After the reperfusion, myocardial tissue was obtained from the free wall of right ventricle myocardial structure studies. Results The level of cTnI was increased
文摘目的探讨加味丹参饮通过调节鸟氨酸脱羧酶(ODC)活性在抗SD大鼠心肌缺血再灌注损伤(IRI)中的保护机制。方法建立SD大鼠心肌IRI模型,设对照组、假手术组、缺血再灌注损伤(IRI)组、加味丹参饮(JWDSY)+IRI组共4组。酶联免疫(ELISA)法测定ODC含量,实时荧光定量PCR(RT-PCR)方法检测ODC m RNA表达水平,免疫印迹(Western blot)法检测ODC蛋白表达水平,高效液相色谱检测心肌组织中多胺的含量。结果与对照组比较,假手术组的ODC含量、ODC m RNA及蛋白表达水平均无统计学意义(P>0.05);与假手术组比较,IRI组的ODC含量显著增加、ODC m RNA及蛋白表达水平显著升高,差异有统计学意义(P<0.01);与IRI组比较,JWDSY+IRI组ODC含量显著减少,ODC m RNA和蛋白表达水平显著降低,差异有统计学意义(P<0.01)。结论加味丹参饮可能通过调节ODC活性,从而发挥对IRI后心肌的保护作用。
