切换至 "中华医学电子期刊资源库"

中华临床医师杂志(电子版) ›› 2020, Vol. 14 ›› Issue (11) : 917 -921. doi: 10.3877/cma.j.issn.1674-0785.2020.11.013

所属专题: 文献

基础研究

氧化苦参碱对大鼠急性心肌梗死诱发室性心律失常的影响
秦国伟1, 李遂宁2, 周涛2,()   
  1. 1. 530021 南宁,壮族自治区人民医院心电诊断科
    2. 550002 贵阳,贵州省人民医院心外科
  • 收稿日期:2020-04-21 出版日期:2020-11-15
  • 通信作者: 周涛
  • 基金资助:
    贵州省中医药管理局中医药、民族医药科学技术课题(QZYY-2018-114)

Effect of oxymatrine on ventricular arrhythmia induced by acute myocardial infarction in rats

Guowei Qin1, Suining Li2, Tao Zhou2,()   

  1. 1. Department of Electrocardiographic Diagnosis, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
    2. Department of Cardiac Surgery, Guizhou Provincial People's Hospital, Guiyang 550002, China.
  • Received:2020-04-21 Published:2020-11-15
  • Corresponding author: Tao Zhou
引用本文:

秦国伟, 李遂宁, 周涛. 氧化苦参碱对大鼠急性心肌梗死诱发室性心律失常的影响[J]. 中华临床医师杂志(电子版), 2020, 14(11): 917-921.

Guowei Qin, Suining Li, Tao Zhou. Effect of oxymatrine on ventricular arrhythmia induced by acute myocardial infarction in rats[J]. Chinese Journal of Clinicians(Electronic Edition), 2020, 14(11): 917-921.

目的

探讨氧化苦参碱(OMT)对急性心肌梗死(MI)大鼠诱发室性心律失常(VA)的影响及其可能机制。

方法

健康雄性SD大鼠75只,使用数字表法随机分为假手术组(Sham组)、MI组和OMT干预组(OMT组),每组25只。MI组和OMT组通过结扎冠状动脉左前降支建立MI模型,假手术组开胸但不结扎冠状动脉。OMT组在模型建立前2周及模型建立后2周连续给予OMT(100 mg/kg)灌胃处理。模型建立后2周,行心脏超声检查评估左心功能,酶联免疫吸附法检测血浆N-末端脑钠肽前体(NT-proBNP)和超敏肌钙蛋白T(hs-TnT)水平,分别使用RT-PCR和Western blotting检测心肌缝隙连接蛋白43(Cx43)mRNA和蛋白的表达,采用Burst刺激诱发VA。

结果

OMT组NT-proBNP、hs-TnT水平[(256.45±38.55)、(89.55±13.39)ng/L]与MI组[(371.93±41.23)、(132.63±20.12)ng/L]比较明显降低(P<0.01)。Sham组、MI组与OMT组Cx43 mRNA相对表达量依次为0.93±0.16、0.47±0.06和0.71±0.12,3组Cx43蛋白相对表达量依次为0.77±0.11、0.50±0.07和0.61±0.08,3组p-Cx43蛋白相对表达量依次为0.62±0.09、0.32±0.05和0.50±0.07,差异均有统计学意义(P均<0.05)。此外,OMT组与MI组比较VA诱发率明显降低(21.4% vs 64.3%,P<0.05)。

结论

OMT可降低MI大鼠心肌的损伤和VA的发生率,其机制可能与OMT调整MI后心肌的Cx43表达有关。

Objective

To investigate the effect of oxymatrine (OMT) on ventricular arrhythmia (VA) induced by myocardial infarction (MI) in rats and explore the possible mechanism.

Methods

Seventy-five healthy male SD rats were randomly divided into a sham operation group, an MI group, and an OMT intervention group, with 25 rats in each group. MI was induced by ligation of the left anterior descending coronary artery in the MI group and OMT group. OMT (100 mg/kg) was administered in the OMT group at two weeks before and two weeks after the establishment of the model. At the end of drug intervention, echocardiography was used to evaluate left ventricular function. The levels of NT-proBNP and hs-TnT in plasma were detected by ELISA. Cx43 mRNA and protein expression in the myocardium weas detected of by RT-PCR and Western blot, respectively. VA was induced by burst stimulation.

Results

The levels of NT-proBNP and hs-TnT in the OMT group were significantly lower than those in the MI group [(256.45±38.55) ng/L vs (371.93±41.23)ng/L, (89.55±13.39)ng/L vs (132.63±20.12)ng/L; P<0.01]. The relative expression of Cx43 mRNA in the sham, MI, and OMT group was 0.93±0.16, 0.47±0.06 and 0.71±0.12 respectively, the relative expression of Cx43 protein in the three groups was 0.77±0.11, 0.50±0.07 and 0.61±0.08, respectively, and the relative expression of p-Cx43 protein was 0.62±0.09, 0.32±0.05 and 0.50±0.07 respectively; the differences among the three groups were statistically significant (P<0.05 for all). In addition, the VA induction rate in the OMT group was significantly lower than that of the MI group (21.4% vs 64.3%, P<0.05).

Conclusion

OMT can reduce the incidence of myocardial injury and VA in MI rats, and the underlying mechanism may be related to the regulation of Cx43 expression by OMT.

表1 各组大鼠左心室超声相关指标比较(
xˉ
±s)
表2 各组NT-proBNP、hs-TnT水平比较(ng/L,
xˉ
±s
图1 各组Cx43、p-Cx43蛋白表达情况
1
Zhang YY, Yi M, Huang YP. Oxymatrine ameliorates doxorubicin-induced cardiotoxicity in rats [J]. Cell Physiol Biochem, 2017, 43(2): 626-635.
2
刘艳明, 王雪芳. 氧化苦参碱对缺血缺氧致兔心律失常保护作用及机制研究 [J]. 河北医药, 2015,37(9): 1308-1310.
3
Yao J, Ke J, Zhou Z, et al. Combination of HGF and IGF-1 promotes connexin 43 expression and improves ventricular arrhythmia after myocardial infarction through activating the MAPK/ERK and MAPK/p38 signaling pathways in a rat model [J]. Cardiovasc Diagn Ther, 2019, 9(4): 346-354.
4
周涛, 谢晓勇, 冯旭, 等. 衣霉素诱导内质网应激预处理对大鼠心肌缺血再灌注损伤的影响 [J]. 中华实验外科杂志, 2015, 32(8): 1833-1836.
5
周涛, 李遂宁, 杨列红, 等. 磷酸化糖原合成酶激酶-3β在小剂量衣霉素减轻心肌缺血再灌注损伤中的作用 [J]. 中华实验外科杂志, 2017, 34(12): 2180-2183.
6
Ninio DM, Murphy KJ, Howe PR, et al. Dietary fish oil protects against stretch-induced vulnerability to atrial fibrillation in a rabbit model [J]. J Cardiovasc Electrophysiol, 2005, 16(11): 1189-1194.
7
张玉瑶, 王吉锡, 刘洋. 氧化苦参碱对豚鼠心室肌细胞动作电位的影响 [J]. 黑龙江医学, 2014, 38(6): 620-621.
8
Ma S, Ma J, Zhou Y, et al. Tongguan capsule derived-herb ameliorates remodeling at infarcted border zone and reduces ventricular arrhythmias in rats after myocardial infarction [J]. Biomed Pharmacother, 2019, 120(11): 109514.
9
Fontes MS, van Veen TA, de Bakker JM, et al. Functional consequences of abnormal Cx43 expression in the heart [J]. Biochim Biophys Acta, 2012, 1818(8): 2020-2029.
10
Martins-Marques T, Catarino S, Marques C, et al. To beat or not to beat: degradation of Cx43 imposes the heart rhythm [J]. Biochem Soc Trans, 2015, 43(3): 476-481.
11
Martins-Marques T, Catarino S, Zuzarte M, et al. Ischaemia-induced autophagy leads to degradation of gap junction protein connexin43 in cardiomyocytes [J]. Biochem J, 2015, 467(2): 231-245.
12
Beardslee MA, Lerner DL, Tadros PN, et al. Dephosphorylation and intracellular redistribution of ventricular connexin43 during electrical uncoupling induced by ischemia [J]. Circ Res, 2000, 87(8): 656-662.
13
Schulz R, Gorge PM, Gorbe A, et al. Connexin 43 is an emerging therapeutic target in ischemia/reperfusion injury, cardioprotection and neuroprotection [J]. Pharmacol Ther, 2015, 153(9): 90-106.
14
Savi M, Bocchi L, Rossi S, et al. Antiarrhythmic effect of growth factor-supplemented cardiac progenitor cells in chronic infarcted heart [J]. Am J Physiol Heart Circ Physiol, 2016, 310(11): H1622-1648.
15
Greener ID, Sasano T, Wan X, et al. Connexin 43 gene transfer reduces ventricular tachycardia susceptibility after myocardial infarction [J]. J Am Coil Cardiol, 2012, 60(12): 1103-1110.
[1] 薛艳玲, 马小静, 谢姝瑞, 何俊, 夏娟, 何亚峰. 左心声学造影在急性心肌梗死合并室间隔穿孔中的应用价值[J]. 中华医学超声杂志(电子版), 2023, 20(10): 1036-1039.
[2] 张忆雪, 陈漠水, 张福伟, 郑颖, 孙定军, 叶青妃. 贝那普利通过下调心锚重复蛋白改善心肌梗死后心肌重塑[J]. 中华危重症医学杂志(电子版), 2023, 16(04): 292-299.
[3] 缪黄泰, 李潇颖, 张明, 聂绍平. 急性心肌梗死后心脏破裂患者院内死亡的危险因素分析[J]. 中华危重症医学杂志(电子版), 2023, 16(03): 187-192.
[4] 欧阳建, 厉锦巧, 徐淑英, 王斌, 陈剑平. 急性心肌梗死患者住院期间死亡风险模型的构建[J]. 中华危重症医学杂志(电子版), 2023, 16(02): 116-122.
[5] 陶梅梅, 王新霞, 朱光发. 肺癌并发心律失常临床特点及支气管镜检查安全性分析[J]. 中华肺部疾病杂志(电子版), 2023, 16(02): 180-184.
[6] 沃吟晴, 杨向群. 心脏巨噬细胞的生理功能及在心肌梗死后的作用[J]. 中华细胞与干细胞杂志(电子版), 2023, 13(03): 167-171.
[7] 乔梁, 杨向群. 脂肪干细胞在心肌损伤修复中的研究进展[J]. 中华细胞与干细胞杂志(电子版), 2022, 12(04): 230-236.
[8] 柯敏霞, 杨黄恬. 心肌微组织的构建及其在心肌损伤修复中的研究进展[J]. 中华细胞与干细胞杂志(电子版), 2022, 12(04): 224-229.
[9] 郝怿隆, 叶慧, 白金霞, 宋威, 秦龙, 张黔, 万健. 钝性胸部外伤引起冠状动脉斑块脱落导致心肌梗死一例[J]. 中华重症医学电子杂志, 2023, 09(03): 311-315.
[10] 张生怀. 急性心肌梗死致心源性猝死救治分析一例[J]. 中华临床医师杂志(电子版), 2023, 17(08): 924-926.
[11] 谢靖芸, 李准. 院前急救对AMI患者治疗及预后影响的Meta分析[J]. 中华临床医师杂志(电子版), 2022, 16(09): 869-875.
[12] 赵彦叶, 顾乃刚, 张亮. 急性ST段抬高型心肌梗死患者发病至呼救延迟的影响因素分析[J]. 中华临床医师杂志(电子版), 2022, 16(09): 857-862.
[13] 赵宁, 陈娟媚, 杨其霖, 莫沛. 急性心肌梗死患者住院病死率和纤维蛋白原水平的非线性关系[J]. 中华临床实验室管理电子杂志, 2023, 11(01): 32-37.
[14] 杨沭, 郦明芳, 陈明龙. 左心室血栓的研究进展[J]. 中华心脏与心律电子杂志, 2023, 11(03): 188-192.
[15] 李娜, 李军, 郭李平, 王海雄. 血管紧张素受体脑啡肽酶抑制剂在心律失常患者中的应用[J]. 中华心脏与心律电子杂志, 2023, 11(01): 39-44.
阅读次数
全文


摘要