Effects of <italic style="font-style: italic">Wutou Chishizhi Pill</italic>（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction

WANG Xinhe; SHI Xiaomei; XIAO Yuxue; WANG Song; XIE Lulu; GUO Junpeng; LIU Hongyan

doi:10.13288/j.11-2166/r.2023.10.012

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Effects of Wutou Chishizhi Pill（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction

更新时间：2023-05-13

- Effects of Wutou Chishizhi Pill（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction
- Journal of Traditional Chinese Medicine Vol. 64, Issue 10, Pages: 1036-1043(2023)
- 作者机构：
  
  长春中医药大学，吉林省长春市南关区净月街道博硕路1035号，130117
- 作者简介：
- 基金信息：
- DOI：10.13288/j.11-2166/r.2023.10.012
  CLC：
- Received：10 August 2022，
  
  Revised：2023-02-27，
  
  Published：17 May 2023
- 稿件说明：
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王鑫赫,史晓梅,肖钰雪等.乌头赤石脂丸方对急性心肌梗死后心肌肥厚模型大鼠心肌组织氧化应激及Keap1/Nrf2/HO-1/NQO-1通路的影响[J].中医杂志,2023,64(10):1036-1043.

WANG Xinhe,SHI Xiaomei,XIAO Yuxue,et al.Effects of Wutou Chishizhi Pill（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction[J].Journal of Traditional Chinese Medicine,2023,64(10):1036-1043.
王鑫赫,史晓梅,肖钰雪等.乌头赤石脂丸方对急性心肌梗死后心肌肥厚模型大鼠心肌组织氧化应激及Keap1/Nrf2/HO-1/NQO-1通路的影响[J].中医杂志,2023,64(10):1036-1043. DOI： 10.13288/j.11-2166/r.2023.10.012.

WANG Xinhe,SHI Xiaomei,XIAO Yuxue,et al.Effects of Wutou Chishizhi Pill（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction[J].Journal of Traditional Chinese Medicine,2023,64(10):1036-1043. DOI： 10.13288/j.11-2166/r.2023.10.012.

摘要

目的

探讨乌头赤石脂丸方治疗急性心肌梗死后心肌肥厚的可能作用机制。

方法

将40只SD大鼠随机分为正常组、模型组、培哚普利叔丁胺组和乌头赤石脂丸组，每组10只。除正常组外，其余3组通过结扎左冠状动脉前降支制备急性心肌梗死，术后各组大鼠正常饲养28天后建立心肌梗死后心肌肥厚模型。造模成功后培哚普利叔丁胺组给予培哚普利叔丁胺片0.4 mg/（kg·d）灌胃，乌头赤石脂丸组给予乌头赤石脂丸药液4.9 g/（kg·d）灌胃，正常组和模型组给予6.67 ml/（kg·d）生理盐水灌胃，均干预28天。观察各组大鼠心肌肥厚指数（包括心脏质量指数和左心室质量指数）；HE染色、Masson染色法观察心肌细胞病理学变化；检测血清中心房钠尿肽（ANP）、血管紧张素Ⅱ（AngⅡ）、醛固酮（ALD）和羟脯氨酸（HYP）含量，心肌组织中超氧化物歧化酶（SOD）、丙二醛（MDA）和活性氧（ROS）水平，检测心肌组织中Kelch样环氧氯丙烷相关蛋白-1（Keap1）、核因子E2相关因子2（Nrf2）、血红素氧合酶-1（HO-1）、醌氧化还原酶-1（NQO-1）、B细胞淋巴瘤-2（Bcl-2）和Bcl-2相关X蛋白（Bax）蛋白表达水平。

结果

与正常组比较，模型组大鼠心脏质量指数和左心室质量指数显著升高（

＜0.01），病理结果显示心肌细胞横截面积变大，心肌纤维紊乱，心肌组织周围胶原纤维断裂、紊乱；血清ANP、AngⅡ、ALD、HYP含量均显著升高，心肌组织中MDA、ROS水平及Keap1、Bax蛋白表达升高，SOD活性及Nrf2、HO-1、NQO-1、Bcl-2蛋白表达降低（

＜0.05或

＜0.01）。与模型组比较，乌头赤石脂丸组和培哚普利叔丁胺组大鼠心脏质量指数和左心室质量指数降低（

＜0.01），心肌病理损伤改善，心肌细胞横截面积明显减小，血清中AngⅡ、ALD、ANP、HYP含量及心肌组织MDA、ROS水平及Keap1、Bax蛋白表达显著降低，SOD活性及Nrf2、HO-1、NQO-1、Bcl-2蛋白表达显著升高（

＜0.05或

＜0.01）。乌头赤石脂丸组在降低心脏质量指数和左心室质量指数、心肌细胞横截面积、ROS水平方面优于培哚普利叔丁胺组（

＜0.05）。

结论

乌头赤石脂丸方能够减轻急性心肌梗死后心室肥厚模型大鼠心肌组织氧化应激损伤和心肌细胞凋亡，降低心肌纤维化程度，从而抑制心肌肥厚的程度，其作用机制可能与激活Keap1/Nrf2/HO-1/NQO-1信号通路有关。

Abstract

Objective

To explore the possible mechanism of

Wutou Chishizhi Pill

（乌头赤石脂丸， WCP） in treating myocardial hypertrophy after acute myocardial infarction （AMI）.

Methods

Forty SD rats were randomly divided into normal group， model group， perindopril tert-butylamine group and WCP group， with 10 rats in each group. Except for the normal group， AMI model was prepared by ligation of the left anterior descending coronary artery； rats in each group were fed normally for 28 days after operation to establish the model of myocardial hypertrophy after AMI. After successful modeling， the perindopril tert-butylamine group was given 0.4 mg/（kg·d） of perindopril tert-butylamine tablets， while the WCP group was given 4.9 g/（kg·d） of WCP liquid， and the normal group and the model group were given 6.67 ml/（kg·d） of normal saline， all by gavage for 28 days. The myocardial hypertrophy indexes including heart mass index and left ventricular mass index were assessed. HE staining and Masson staining were used to observe the pathological changes of cardiomyocytes. The serum atrial natriuretic peptide （ANP）， angiotensin Ⅱ （AngⅡ）， aldosterone （ALD） and hydroxyproline （HYP） levels were detected， as well as the superoxide dismutase （SOD）， malondialdehyde （MDA） and reactive oxygen species （ROS） levels in myocardial tissue. The protein expression levels of Kelch-like epichlorohydrin-related protein-1 （Keap1）， nuclear factor E2-related factor 2 （Nrf2）， heme oxygenase-1 （HO-1）， quinone oxidoreductase-1 （NQO-1）， B-cell lymphoma-2 （Bcl-2） and Bcl-2-related X protein （Bax） in myocardial tissue were detected.

Results

Compared to those in the normal group， the heart mass index and left ventricular mass index of rats in the model group significantly increased （

＜0.01）， and the pathological results showed that the cross-sectional area of cardiomyocytes became larger， with disordered myocardial fibers， and broken and disordered collagen fibers around the myocardial tissue； serum ANP， AngⅡ， ALD， and HYP levels significantly increased， as well as the MDA and ROS levels in myocardial tissue and Keap1 and Bax protein expression levels， while SOD activity and Nrf2， HO-1， NQO-1， Bcl-2 protein expression levels decreased （

＜0.05 or

＜0.01）. Compared to those in the model group， the heart mass index and left ventricular mass index of the rats in the WCP group and the perindopril tert-butylamine group decreased （

＜0.01）； the myocardial pathological damage was improved， and the cross-sectional area of cardiomyocytes was significantly reduced； the serum AngⅡ， ALD， ANP and HYP levels， as well as MDA and ROS levels in the myocardial tissue and Keap1 and Bax protein expression levels significantly decreased， while SOD activity and Nrf2， HO-1， NQO-1， Bcl-2 protein expression levels significantly increased （

＜0.05 or

＜0.01）. The WCP group was superior to the perindopril tert-butylamine group in reducing heart mass index and left ventricular mass index， the cross-sectional area of cardiomyocytes， and the ROS level （

＜0.05）.

Conclusion

WCP can reduce oxidative stress injury and myocardial cell apoptosis in myocardial tissue of myocardial hypertrophy model rats after AMI， and can reduce the degree of myocardial fibrosis， thereby inhibiting the degree of myocardial hypertrophy. The mechanism may be related to the activation of Keap1/Nrf2/HO-1/NQO-1 signaling pathway.

关键词

Keywords

references

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Effects of Wutou Chishizhi Pill（乌头赤石脂丸）on Myocardial Oxidative Stress and Keap1/Nrf2/HO-1/NQO-1 Pathway in Myocardial Hypertrophy Model Rats after Acute Myocardial Infarction

DOI：10.13288/j.11-2166/r.2023.10.012

摘要

Abstract

关键词

Keywords

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