中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (27): 4395-4400.doi: 10.3969/j.issn.2095-4344.2014.27.021

• 细胞与组织移植 cell and tissue transplantation • 上一篇    下一篇

自体心包膜移植后受体心电活动的变化

解  力,张晓刚,黄  吕,李永林,汤小曼,张  辉   

  1. 重庆医科大学附属第一医院心内科,重庆市  400016
  • 出版日期:2014-06-30 发布日期:2014-06-30
  • 通讯作者: 张晓刚,博士,教授,主任医师,硕士生导师,重庆医科大学附属第一医院心内科,重庆市400016
  • 作者简介:解力,男,1987年生,汉族,重庆市人,重庆医科大学在读硕士,主要从心脏干细胞及心包膜组织移植方面的研究。
  • 基金资助:

    重庆市卫生局医学科学技术研究重点项目(2009-1-51)

Cardiac electrical activity after autologous pericardium transplantation

Xie Li, Zhang Xiao-gang, Huang Lv, Li Yong-lin, Tang Xiao-man, Zhang Hui   

  1. Department of Cardiology, First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
  • Online:2014-06-30 Published:2014-06-30
  • Contact: Zhang Xiao-gang, M.D., Chief physician, Professor, Master’s supervisor, Department of Cardiology, First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
  • About author:Xie Li, Studying for master’s degree, Department of Cardiology, First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
  • Supported by:

    Medical Science and Technology Research Key Project of Chongqing Municipal Health Bureau, No. 2009-1-51

摘要:

背景:自体心包膜移植治疗已广泛应用于临床,主要涉及心血管修补重建、眼表疾病的治疗等领域;但其对心脏本身在缺血损伤下的保护作用却研究甚少。探索自体心包膜带瓣移植的安全性及其对缺血损伤后心肌的保护作用具有重要意义。
目的:观察心脏接受自体心包膜移植后对心电活动的影响及其对缺血心肌的保护作用。
方法:以荣昌肉猪和SD大鼠为研究对象,2种动物分别分为3组:移植组、心肌梗死组及心肌梗死+移植组,心肌梗死组及心肌梗死+移植组动物结扎冠状动脉前降支建立心肌梗死模型,移植组及心肌梗死+移植组动物以自体心包膜组织带瓣移植建立移植模型。
结果与结论: ①猪心电图监测室上性早搏常见;移植组室性早搏偶见,监测过程中未见室性心动过速和室性颤动。与心肌梗死组相比,心肌梗死+移植组室性早搏减少,超声心动图检查示心功能改善(P < 0.05)。②移植组大鼠心电图监测未见室性颤动;心肌梗死组、心肌梗死+移植组均见非致死性室性颤动。与心肌梗死组相比,心肌梗死+移植组心功能改善,心肌凋亡指数降低,Bcl-2蛋白表达升高,Caspase-3蛋白表达降低(P < 0.05)。提示自体心包膜带瓣移植未诱发恶性室性心律失常,其安全性相对较高;并在一定程度上减少缺血损伤后室性早搏个数、促进心功能恢复,其可能与抑制缺血区域细胞凋亡有关。



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

关键词: 实验动物, 组织构建, 移植, 自体心包膜移植, 带瓣移植, 心肌梗死, 室性早搏, 细胞凋亡

Abstract:

BACKGROUND: The treatment of autologous pericardium transplantation has been widely applied in clinics, mainly involving cardiovascular repair and reconstruction, the treatment of ocular surface disease. The study addressing protection effects of autologous pericardium transplantation on the heart with ischemia injury is rarely reported. The investigations on the safety and protection effects of autologous pericardial transplantation on the heart with ischemia injury are of important significance.
OBJECTIVE: To explore effect of autologous pericardial transplantation on cardiac electrical activity and the protective effects on myocardial ischemia.
METHODS: Rongchang pork pigs and Sprague-Dawley rats were randomly divided into three groups: autologous pericardium transplantation, myocardial ischemia, and myocardial ischemia + autologous pericardium transplantation. The model of myocardial ischemia was established by ligation of the left anterior descending coronary artery in the groups of myocardial ischemia and myocardial ischemia + autologous pericardium transplantation. The model of transplantation was established by autologous pericardium transplant with flap in the groups of autologous pericardium transplantation and myocardial ischemia + autologous pericardium transplantation.
RESULTS AND CONCLUSION: Porcine electrocardiogram monitoring results showed that, superventricular premature beat was frequently observed in each group of pigs; the ventricular premature beat was occasional observed in autologous pericardium transplantation group, ventricular tachycardia and ventricular fibrillation did not appear. Compared with myocardial ischemia group, the ventricular premature beat decreased and the heart function was improved in myocardial ischemia + autologous pericardium transplantation group (P < 0.05). Rat electrocardiogram monitoring results showed that, the ventricular fibrillation did not appear in autologous pericardium transplantation group, the lethal ventricular fibrillation did not appear in myocardial ischemia and myocardial ischemia + autologous pericardium transplantation groups. Compared with myocardial ischemia group, the heart function was improved, the apoptosis index decreased, the expressions of Bcl-2 protein increased, the expressions of Caspase-3 protein decreased in myocardial ischemia + autologous pericardium transplantation group (P < 0.05). The autologous pericardium transplantation with flap cannot induce malignant ventricular arrhythmia and is relatively safe; the ventricular premature beat is reduced, the cardiac function is improved, which is possibly related to the inhibition of apoptosis in myocardial ischemic area.



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

Key words: transplants, pericardium, heart valves, myocardial infarction, ventricular premature complexes

中图分类号: 

近年来,Limana等[14]发现小鼠心外膜c-kit阳性细胞参与了心脏修复过程,证实了心外膜和心包膜组织中富含心血管祖细胞,并具有一定的分化潜能[15]。随后,王晓明    [2]发现心包膜组织中的干细胞具有间充质干细胞的基本特征,可在一定条件下,分为成熟的心肌细胞。
程度上减少缺血损伤后室性早搏个数、促进心功能恢复,其可能与抑制缺血区域心肌细胞凋亡有关。本实验为临床上治疗缺血性心脏病提供了更广阔的思路。


中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程
全文链接: