中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (49): 7320-7326.doi: 10.3969/j.issn.2095-4344.2016.49.004

• 心脏及血管损伤动物模型 Animal models of heart and vascular damage • 上一篇    下一篇

人参皂苷Rb3对心肌缺血再灌注损伤模型大鼠的保护

吴惠珍1,贾庆忠2   

  1. 1河北省人民医院药学部,河北省石家庄市  050001;2河北医科大学药理教研室,河北省石家庄市  050001
  • 收稿日期:2016-09-09 出版日期:2016-11-30 发布日期:2016-11-30
  • 作者简介:吴惠珍,女,1974年生,汉族,河北省冀州市人,硕士,副主任药师,主要从事医院药学,临床药学研究。
  • 基金资助:

    河北省教育厅高层次人才研究项目(GCC2014038)

Protective effects of ginsenoside Rb3 on a rat model of ischemia/reperfusion injury

Wu Hui-zhen1, Jia Qing-zhong2   

  1. 1Department of Pharmacy, Hebei Provincial People’s Hospital, Shijiazhuang 050001, Hebei Province, China; 2Department of Pharmacology, Hebei Medical University, Shijiazhuang 050001, Hebei Province, China
  • Received:2016-09-09 Online:2016-11-30 Published:2016-11-30
  • About author:Wu Hui-zhen, Master, Associate chief pharmacist, Department of Pharmacy, Hebei Provincial People’s Hospital, Shijiazhuang 050001, Hebei Province, China
  • Supported by:

    the High Level Talent Research Project of Hebei Provincial Department of Education, No. GCC2014038

摘要:

文章快速阅读:

文题释义:
心肌缺血再灌注损伤:是常见心血管疾病,指心脏血流灌注减少,心脏供氧减少,心肌能量代谢失常,无法支持心脏正常工作的一种病理状态,常见原因是冠状动脉粥样硬化。再灌注是指组织或器官缺血后恢复供血的过程,此过程往往会加重组织损伤。心肌缺血再灌注损伤已成为冠状动脉搭桥手术、介入治疗及冠状动脉溶栓治疗的常见并发症,目前临床上治疗此病药物主要有硝酸酯类、他汀类、钙离子拮抗剂等,近年来中药也成为心肌缺血再灌注损伤治疗的热点。
人参皂苷:为人参的主要有效成分,对中枢神经系统、循环系统、代谢系统、造血系统等具有丰富的药理药效作用。人参皂苷种类繁多,含量约为4%,一般可分为人参二醇类皂苷、原人参三醇类及齐墩果酸类3种。其中原人参二醇类皂苷约有20种,主要有Rb1、Rb2、Rb3、Rc、Rd等,约占人参总皂苷的55%;而原人参三醇类在约有10种,主要有Re、Rg1、Rg2等,约占人参总皂苷的40%;齐墩果酸。
摘要
背景:
人参皂苷Rb3具有多种生理活性,主要集中体现在心血管方面。
目的:观察人参皂苷Rb3对大鼠心肌缺血再灌注损伤的保护作用。
方法:将120只SD大鼠随机分6组,每组20只,模型组、假手术组灌胃给予生理盐水2 mL/(kg•d),连续2 d;阳性药物组灌胃给予地尔硫卓2 mL/(kg•d),连续2 d;低剂量给药组、中剂量给药组、高剂量给药组分别灌胃给予人参皂苷Rb3 10,20,30 mg/(kg•d),连续2 d。给药2 d后,假手术组只开胸,不做任何处理;其余5组结扎左侧冠状动脉前降支,建立心肌缺血再灌注损伤模型,48 h后,观察大鼠心肌组织病理切片,计算脏器系数与心肌梗死面积百分比,测定血清中同工酶、丙二醛、乳酸脱氢酶、内皮舒张因子、超氧化物歧化酶、谷胱甘肽过氧化酶等生化指标的水平。
结果与结论:①病理切片:中剂量与高剂量人参皂苷Rb3对心肌缺血再灌注组织损伤有显著改善作用;②脏器系数与心肌梗死面积百分比:与模型组比较,中剂量与高剂量人参皂苷Rb3能显著降低大鼠脏器系数及心肌梗死面积百分比(P < 0.05,P < 0.01);③血清指标:与模型组比较,人参皂苷Rb3呈剂量依赖性降低同工酶、丙二醛、乳酸脱氢酶、内皮舒张因子水平,呈剂量依赖性升高谷胱甘肽过氧化酶、超氧化物歧化酶水平;④结果表明:人参皂苷Rb3对大鼠心肌缺血再灌注损伤有保护作用,其作用机制可能与抗细胞过脂质化、抗自由基、抗炎症反应及影响心肌酶参与体内能量代谢的过程有关。

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
ORCID: 0000-0002-7776-1049(吴惠珍)

关键词: 实验动物, 心肺损伤与修复动物模型, 人参皂苷Rb3, 心肌缺血再灌注损伤大鼠, 血清, 心肌组织, 生化指标

Abstract:

BACKGROUND: Ginsenoside Rb3 has a variety of physiological activities, which mainly reflected in the cardiovascular treatment.
OBJECTIVE: To study the protective effects of ginsenoside Rb3 on the ischemia/reperfusion injury of rats.
METHODS: 120 Sprague-Dawley rats were randomly assigned to six groups, with 20 in each group. Rats in the model and sham operation groups were intragastrically given physiological saline 2 mL/kg•d for 2 consecutive days. Rats in the positive drug group were intragastrically given diltiazem 2 mL/kg•d for 2 consecutive days. Rats in the low-dose drug group, moderate-dose drug group and high-dose drug group were intragastrically given ginsenoside Rb3 10, 20, 30 mg/kg•d, for 2 consecutive days. At 2 days after administration, the chest of rats in the sham operation was opened, but these rats did not receive any other treatment. In other five groups, anterior descending branch of left coronary artery was ligated to establish models of ischemia/reperfusion injury. 48 hours later, we observed pathological sections of rat cardiac muscle, calculated percentage of organ coefficient and myocardial infarction area, measured the levels of serum isozyme, malondialdehyde, lactate dehydrogenase, endothelial relaxing factor, superoxide dismutase and glutathione peroxidase.
RESULTS AND CONCLUSION: (1) Pathological sections: ginsenoside Rb3 significantly improved the ischemia/reperfusion injury. (2) Percentages of organ coefficient and myocardial infarction area: compared with the model group, the percentages were significantly lower in the moderate-dose and high-dose drug groups (P < 0.05, P < 0.01). (3) Serum indexes: compared with the model group, ginsenoside Rb3 decreased isozyme, malondialdehyde, lactate dehydrogenase and endothelial relaxing factor levels in a dose-dependent manner, but increased superoxide dismutase and glutathione peroxidase levels in a dose-dependent manner. (4) Results suggested that ginsenoside Rb3 has protective effects on ischemia/reperfusion injury. Its mechanism of action may be associated with anti-lipid peroxide activities in cells, the anti-free radical effects, anti-inflammatory functions and the influence of cardiac enzymes on energy metabolism.

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

Key words: Drugs, Chinese Herbal, Myocardial Ischemia, Myocardial Reperfusion Injury, Tissue Engineering

中图分类号: