左卡尼汀联合比索洛尔对心肺复苏大鼠心肌的保护作用

中国临床药理学与治疗学 ›› 2013, Vol. 18 ›› Issue (12): 1321-1326.

• 基础研究 • 下一篇

左卡尼汀联合比索洛尔对心肺复苏大鼠心肌的保护作用

张美齐¹, 翟昌林², 陈环¹, 沈晔¹, 涂建锋¹, 杨向红¹

¹浙江省人民医院EICU,杭州 310014 ,浙江;
²浙江省嘉兴市第一医院心内科,嘉兴 314001, 浙江

收稿日期:2013-10-16 修回日期:2013-12-03 出版日期:2013-12-26 发布日期:2014-01-04
通讯作者: 翟昌林,男,博士,研究方向:心血管结构重构。E-mail: yesterdaygun@126.com
作者简介:张美齐,男,副主任医师,研究方向:心血管重症医学。Tel: 13958007900 E-mail: zmq0606@163.com
基金资助:
2012年浙江省药卫生一般研究计划(2012KYB008)

Protective effects of levocarnitine combined with bisoprolol on cardiopulmonary resuscitation in rats

ZHANG Mei-qi¹, ZHAI Chang-lin², CHEN Huan¹, SHEN Yue¹, TU Jian-feng¹, YANG Xiang-hong¹

¹Department of Emergency Intensive Care Unit, Zhejiang Province People's Hospital, Hangzhou 310014, Zhejiang, China;
²Department of Cardiiology, First Hospital of Jiaxing, Jiaxing 314001, Zhejiang, China

Received:2013-10-16 Revised:2013-12-03 Online:2013-12-26 Published:2014-01-04

摘要/Abstract

摘要： 目的: 探讨左卡尼汀与比索洛尔对心肺复苏后心肌的协同保护作用及其机制。方法: 通过建立心肺复苏大鼠模型,大鼠随机分成4组:左卡尼汀和比索洛尔联合用药组(10例),比索洛尔组(10例),左卡尼汀组(10例),安慰剂组(10例)。观察心肺复苏自主循环恢复后不同时间点各组大鼠心率及平均动脉压的变化;酶生化法检测心肌损伤标志物磷酸肌酸同工酶(CK-MB)水平;ELISA法检测氧化应激损伤指标超氧化物歧化酶(SOD)和丙二醛(MDA)的变化;Western Blot方法检测心肌BCL-2与Bax蛋白表达,以及荧光显微镜下观察溴化乙锭(EtBr)和3-硝基酪氨酸(3-NT)的变化。结果: 与比索洛尔组、安慰剂组不同,左卡尼汀组各时间点心率升高(P<0.05),平均动脉压亦有升高(P<0.05),CK-MB和MDA水平降低(P<0.05),BCL-2水平升高,Bax水平降低(P<0.05),而联合用药组差异更加显著(P<0.01)。同时发现,左卡尼汀组较安慰剂组,EtBr和3-NT水平降低,差异有统计学意义(P<0.05)。联合用药组与安慰剂组相比,EtBr和3-NT水平的差异更加显著(P<0.01)。结论: 左卡尼汀可以通过增加上调SOD、下调MDA水平;上调BCL-2、下调Bax水平产生保护心肌作用,并且与比索洛尔有协调作用。

关键词: 左卡尼汀, 比索洛尔, 心肺复苏, 心肌凋亡

Abstract: AIM: To investigate the L-carnitine and bisoprolol on myocardium after cardiopulmonary resuscitation in a synergistic protective effect and its mechanism.METHODS: Rats were randomly divided into 4 groups: L-carnitine and bisoprolol combined therapy group (10 cases), the bisoprolol group (10 cases), carnitine group (10 cases ), the placebo group (10 cases). Each rat heart rate and mean arterial pressure at different time points were observed. Myocardial injury markers CK-MB was detected by enzyme biochemical assay and serum oxidative stress indices SOD and MDA were detected by ELISA, and myocardial BCL-2 and Bax protein were detected by Western Blot method,and the levels of EtBr and 3-NT were tested.RESULTS: Compared with the bisoprolol group and the placebo group, L-carnitine group each time heart ratewas increased(P<0.05), mean arterial pressure was also increased(P<0.05), the levels of SOD and BCL-2 were increased, CK-MB, MDA and Bax levels were decreased(P<0.05). Compared with the placebo group, the levels of EtBr and 3-NT of L-carnitine group were decreased(P<0.05), while combination group compared with the placebo group, the differences were more significant (P<0.01).CONCLUSION: L-carnitine can upregulate SOD and BCL-2 levels, downregulate MDA and Bax levels to produce effect on myocardium, while bisoprolol has harmonious effect.

Key words: L-carnitine , Bisoprolol, Cardiopulmonary resuscitation, Myocardial apoptosis

中图分类号:

R965.2

张美齐, 翟昌林, 陈环, 沈晔, 涂建锋, 杨向红. 左卡尼汀联合比索洛尔对心肺复苏大鼠心肌的保护作用[J]. 中国临床药理学与治疗学, 2013, 18(12): 1321-1326.

ZHANG Mei-qi, ZHAI Chang-lin, CHEN Huan, SHEN Yue, TU Jian-feng, YANG Xiang-hong. Protective effects of levocarnitine combined with bisoprolol on cardiopulmonary resuscitation in rats[J]. Chinese Journal of Clinical Pharmacology and Therapeutics, 2013, 18(12): 1321-1326.

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左卡尼汀联合比索洛尔对心肺复苏大鼠心肌的保护作用

Protective effects of levocarnitine combined with bisoprolol on cardiopulmonary resuscitation in rats

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