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myocardial cellular damage
相关语句
  心肌损伤
     Objective To evaluate the postoperative changes of hemodynamics and myocardial cellular damage in patients undergoing off-pump coronary artery bypass grafting(OPCAB).
     目的观察非体外循环冠状动脉旁路移植术(OPCAB)后早期血流动力学变化及心肌损伤
短句来源
  “myocardial cellular damage”译为未确定词的双语例句
     Changes of hemodynamics and myocardial cellular damage in patients after off-pump coronary artery bypass
     非体外循环冠状动脉旁路移植术后早期血流动力学和心肌损伤的观察
短句来源
     Myocardial suppressing and myocardial hibernating are belong to survival myocardial, cellular damage is evitable, the myocardial function will recover normal partly or completely once the amount of blood supplying myocardial get recover or oxygen get increment.
     心肌细胞的损伤是可逆性的,一旦供应这些心肌的血流量得到恢复或氧供得到增加,心脏局部和整体功能将部分或完全恢复正常。
短句来源
  相似匹配句对
     Advances in Research of Molecular and Cellular Mechanisms of Myocardial Stunning
     心肌顿抑的细胞分子机制研究进展
短句来源
     Myocardial ischemic preconditioning is related to cellular signal transduction.
     心肌缺血预适应与细胞信号转导密切相关。
短句来源
     MYOCARDIAL PROTECTION
     心肌保护
短句来源
     Objective To investigate the change of cellular immune functions during chronic myocardial damage in mice.
     目的观察慢性心肌损伤过程中小鼠细胞免疫功能的改变。
短句来源
     The myocardial tissue was damaged.
     心肌组织受损。
短句来源
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  myocardial cellular damage
These results are consistent with a significant role of thromboxanes in the propagation of myocardial cellular damage during ischemia.
      


The Serum cardiac troponin T(cTn T)were measured in 77 patients with chronic heart failure and 20 healthy persons by ELISA method Results Showed that there was no significant difference in serum cTn T between patients with milld,moderate heart failure and healthy persons(P>0 05) Serum cTn T in patients with severe heart failure was higher significantly than those with mild and moderate heart failure as well as healthy persons(P<0 01 respectively)...

The Serum cardiac troponin T(cTn T)were measured in 77 patients with chronic heart failure and 20 healthy persons by ELISA method Results Showed that there was no significant difference in serum cTn T between patients with milld,moderate heart failure and healthy persons(P>0 05) Serum cTn T in patients with severe heart failure was higher significantly than those with mild and moderate heart failure as well as healthy persons(P<0 01 respectively) In patients with severe heart failure,there was no significant difference in serum cTn T in coronary heart disease compared with other heart diseases(P>0 05) This indicates that there is obvious myocardial cellular damage in all of severe heart failure caused by different heart diseases It is important to repair the damaged myocardial cells for treatment of heart failure

采用 ELISA法测定 77例慢性充血性心力衰竭 (心衰 )患者和 2 0例健康人的血清心肌肌钙蛋白 T(c Tn- T)。结果显示 ,轻中度心衰患者血清 c Tn- T与健康人无显著差异 (P>0 .0 5) ,重度心衰患者明显高于健康人和轻中度心衰者 (P<0 .0 1) ,冠心病与非冠心病重度心衰患者无显著差异 (P>0 .0 5)。提示不同病因的重度心衰患者均有心肌细胞损伤 ,促使损伤心肌修复是治疗心衰的重要组成部分。

Objective: To observe the action of IL-8 in electroacupuncture (EA)-produced protective effect in patients undergoing coronary artery bypass grafting (CABG).Methods: Forty-eight patients undergoing CABG were randomized into EA group (n=24) and control group (n=24). In EA group, bilateral Neiguan (PC 6), Lieque (LU 7) and Yunmen (LU 2) were punctured and stimulated electrically with parameters of 3~4 Hz, 0.5~1 mA and duration of 20~30 min. Blood samples were taken from the right cardiac atrium before operation,...

Objective: To observe the action of IL-8 in electroacupuncture (EA)-produced protective effect in patients undergoing coronary artery bypass grafting (CABG).Methods: Forty-eight patients undergoing CABG were randomized into EA group (n=24) and control group (n=24). In EA group, bilateral Neiguan (PC 6), Lieque (LU 7) and Yunmen (LU 2) were punctured and stimulated electrically with parameters of 3~4 Hz, 0.5~1 mA and duration of 20~30 min. Blood samples were taken from the right cardiac atrium before operation, before cardiopulmonary bypass (CPB), 60 min after CPB and at the end of operation in order to detect contents of IL-8, malondialdehyde (MDA) and superoxide dismutase (SOD). Myocardial tissues of the right atrium were taken before and 60 min after CPB in order to observe ultrastructural changes of myocytes. Results:Self-comparison between pre-operation, pre-CPB and post-CPB and post-operation in each group showed that the contents of IL-8 in both groups increased considerably 60 min following CPB and operation (P<0.05). IL-8 levels 60 min after CPB and at the end of operation in EA group were significantly lower than those of control group (P<0.05). The activity of SOD and the content of MDA before CPB in each group increased significantly compared with pre-operation and tended to decrease from 60 min after CPB to the end of operation (P<0.05). Comparison of two groups showed that SOD and MDA levels of EA group before CPB were significantly higher than those of control group (P<0.05). Electronmicroscopic observation showed that the myocardial cellular damage (swelling of mitochondria, myofibril breaking, etc.) was lighter in EA group than that in control group.Conclusion: EA can suppress the release of blood IL-8, which reduces the production of oxygen free radical and relieves its attack on myocytes, preventing the myocardium from ischemia-reperfusion injury.

目的 :观察电针刺激对缺血再灌注心肌保护中IL 8的作用机制。方法 :48例行冠脉搭桥术病人随机分为针刺组和对照组。于术前、体外循环转流前、停转流 60min和术毕取右心房血测定IL 8、SOD、MDA。转流前、停转流 60min取右心耳心肌组织 ,电镜观察心肌超微结构变化。结果 :两组IL 8含量持续上升 ,针刺组停转流 60min、术毕含量显著低于对照组。SOD、MDA于转流前至术毕呈现下降趋势 ,其中针刺组转流前SOD较对照组显著升高 ,而MDA显著降低。电镜观察显示停转流 60min针刺组心肌细胞损伤程度明显小于对照组。结论 :针刺能抑制IL 8的释放 ,减少氧自由基的产生 ,减轻受氧自由基的攻击程度 ,从而对缺血再灌注心肌具有保护作用

Objective To evaluate the postoperative changes of hemodynamics and myocardial cellular damage in patients undergoing off-pump coronary artery bypass grafting(OPCAB).Methods After institutional review board approval and informed consent,20 patients undergoing OPCAB were investigated.Blood samples were collected at the time points of T0(10 minutes after anesthesia),T1(30 minutes after revascularization),T2,T3,T4 and T5(2hours,6 hours,12 hours and 24 hours respectively afterwards).MB isoenzyme of creatine...

Objective To evaluate the postoperative changes of hemodynamics and myocardial cellular damage in patients undergoing off-pump coronary artery bypass grafting(OPCAB).Methods After institutional review board approval and informed consent,20 patients undergoing OPCAB were investigated.Blood samples were collected at the time points of T0(10 minutes after anesthesia),T1(30 minutes after revascularization),T2,T3,T4 and T5(2hours,6 hours,12 hours and 24 hours respectively afterwards).MB isoenzyme of creatine kinase(CK-MB),cardiac troponin I(cTnI) and NT-pro brain natriuretic peptide (NT-proBNP) were measured and hemodynamic parameters were documented simultaneously.Right atrial myocardium was harvested before and at 30 min after revascularization respectively.The ultrastructure was analyzed by transmission electron microscope(TEM).Results There were no significant differences in blood pressure postoperatively,but HR increased significantly(P<0.01),pulmonary capillary wedge pressure(PCWP),central venous pressure(CVP) and mean pulmonary artery pressure(MPAP) increased significantly(P<0.01).Cardiac index(CI) increased markedly(P<0.01).Systemic vascular resistance(SVR),systemic vascular resistance index(SVRI), stroke volume(SV) and stroke volume index(SVI) and left ventricular stroke work index(LVSWI) decreased significantly,while right ventricular stroke work index(RVSWI) was decreased only at T2(P<0.01).CK-MB and cTnI were markedly increased from T1 to T5 and NT-proBNP was significantly increased only at T5 compared to T0.Compare with the ultrastructure of myocardial cell before surgery,the cell after revascularization was damaged.Myofilament unclear and disordered,mitochondria distorted,the crista unclear.Conclusion The performance of OPCAB can cause myocardial injuries and depress cardiac function of both left and right ventricule,especially left ventricule.

目的观察非体外循环冠状动脉旁路移植术(OPCAB)后早期血流动力学变化及心肌损伤。方法选择20例择期OPCAB患者,连续监测血流动力学变化,并记录麻醉诱导后10min(T0)、血运重建后30min(T1)、2h(T2)、6h(T3)、12h(T4)、24h(T5)的血流动力学参数,同时测定血浆肌酸激酶同功酶(CK-MB)、心肌肌钙蛋白I(cTnI)和N端B型脑钠肽(NT-proBNP)浓度。吻合血管前和血运重建后30min分别取右心房心肌组织透射电镜观察超微结构的变化。结果围术期SBP和DBP无明显变化,但血运重建后HR增快(P<0.01)、CVP、肺动脉楔压(PCWP)、平均肺动脉压(MPAP)和心指数(CI)升高(P<0.01),而体循环阻力(SVR)、体循环阻力指数(SVRI)、每搏数(SV)、每搏指数(SVI)和左室每搏功指数(LVSWI)降低,右室每搏功指数(RVSWI)仅在血运重建后2h降低(P<0.01)。CK-MB和cTnI从血运重建后持续升高(P<0.05),尤以血运重建后24h为明显。NT-proBNP在血运重建后12h内无显著变化,但在血运重建后24h显著升高(P<0.01)。透射电镜下...

目的观察非体外循环冠状动脉旁路移植术(OPCAB)后早期血流动力学变化及心肌损伤。方法选择20例择期OPCAB患者,连续监测血流动力学变化,并记录麻醉诱导后10min(T0)、血运重建后30min(T1)、2h(T2)、6h(T3)、12h(T4)、24h(T5)的血流动力学参数,同时测定血浆肌酸激酶同功酶(CK-MB)、心肌肌钙蛋白I(cTnI)和N端B型脑钠肽(NT-proBNP)浓度。吻合血管前和血运重建后30min分别取右心房心肌组织透射电镜观察超微结构的变化。结果围术期SBP和DBP无明显变化,但血运重建后HR增快(P<0.01)、CVP、肺动脉楔压(PCWP)、平均肺动脉压(MPAP)和心指数(CI)升高(P<0.01),而体循环阻力(SVR)、体循环阻力指数(SVRI)、每搏数(SV)、每搏指数(SVI)和左室每搏功指数(LVSWI)降低,右室每搏功指数(RVSWI)仅在血运重建后2h降低(P<0.01)。CK-MB和cTnI从血运重建后持续升高(P<0.05),尤以血运重建后24h为明显。NT-proBNP在血运重建后12h内无显著变化,但在血运重建后24h显著升高(P<0.01)。透射电镜下见血运重建后肌丝结构较术前模糊,线粒体有变形,结构不清晰,嵴模糊。结论OPCAB血运重建后早期存在心肌损伤和左右心功能下降,以左心为著。

 
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