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强心汤对慢性心力衰竭大鼠线粒体的影响及机制
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毛美玲 ,卢健棋 ,朱智德 ,庞 延 ,谢丽钰 ,陈佳永 ,吴鑫宇 ,肖 湘 ,卢俊燊 ,石炜琦(1. 广西中医药
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大学第一临床医学院,南宁 530299;2.广西中医药大学第一附属医院心内科,南宁 530023;3.广西中医药
大学附设中医学校,南宁 530001)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2025)02-0160-06
DOI 10.6039/j.issn.1001-0408.2025.02.05
摘 要 目的 探讨强心汤对慢性心力衰竭(CHF)大鼠线粒体的影响及潜在机制。方法 采用结扎冠状动脉左前降支的方法建立
CHF模型。将造模成功的大鼠分为模型组,强心汤低、高剂量组(12.25、24.50 g/kg,以生药量计),化学药组(沙库巴曲缬沙坦钠片,
10.42 mg/kg),另设不作处理的对照组,每组10只。各组大鼠灌胃相应药液或生理盐水,每天2次,连续28 d。末次给药后,检测大
鼠血清中氨基末端脑利钠肽前体(NT-proBNP)、三磷酸腺苷(ATP)和心肌组织中磷脂酸(PA)、心磷脂(CL)含量;观察大鼠心肌组
织病理损伤和胶原纤维化情况;检测大鼠心肌细胞凋亡情况;观察心肌组织超微结构;检测心肌组织中线粒体融合蛋白1(Mfn1)、
Mfn2、视神经萎缩蛋白1(OPA1)、动力相关蛋白1(Drp1)的表达情况。结果 与对照组比较,模型组大鼠血清中NT-proBNP含量,
心肌细胞凋亡率,心肌组织中S-OPA1、Drp1蛋白的相对表达量均显著升高(P<0.05);血清中ATP含量,心肌组织中PA、CL含量
和Mfn1、Mfn2、L-OPA1蛋白的相对表达量均显著降低(P<0.05);心肌组织各层膜组织结构异常,心肌细胞变性坏死,且纤维化严
重;心肌组织线粒体可见肿胀,嵴减少或消失,基质密度不均匀。经强心汤干预后,大鼠血清及心肌组织中上述定量指标水平(强
心汤低剂量组CL含量除外)均显著逆转(P<0.05);心肌组织病理损伤明显改善,纤维化情况明显减轻;线粒体形态趋于正常且嵴增
多,基质密度均匀。结论 强心汤可调节CHF大鼠的心肌线粒体功能和结构完整性,进而改善心肌能量代谢,减轻心肌纤维化;其
作用机制可能与激活PA/Mfn/CL信号通路有关。
关键词 强心汤;慢性心力衰竭;线粒体;能量代谢;纤维化;PA/Mfn/CL信号通路
Effects and mechanism of Qiangxin decoction on mitochondrion of rats with chronic heart failure
MAO Meiling ,LU Jianqi ,ZHU Zhide ,PANG Yan ,XIE Liyu ,CHEN Jiayong ,WU Xinyu ,XIAO Xiang ,
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LU Junshen ,SHI Weiqi(1. First Clinical School, Guangxi University of Chinese Medicine, Nanning 530299,
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China;2. Cardiovascular Department, the First Affiliated Hospital of Guangxi University of Chinese Medicine,
Nanning 530023,China;3. Affiliated School of Traditional Chinese Medicine, Guangxi University of Chinese
Medicine, Nanning 530001,China)
ABSTRACT OBJECTIVE To investigate the effects and potential mechanism of Qiangxin decoction on mitochondrion of rats
with chronic heart failure (CHF). METHODS The CHF model was established by ligating the left anterior descending branch of
the coronary artery. Modeled rats were divided into model group, Qiangxin decoction low-dose and high-dose groups (12.25, 24.50
g/kg, calculated by crude drug), and chemical medicine group (Sacubitril valsartan sodium tablets, 10.42 mg/kg), with 10 rats in
each group; control group was set up without treatment. Each group of rats was orally administered with the corresponding
medication or normal saline twice a day for 28 consecutive days. After the last medication, the contents of N-terminal pro-brain
natriuretic peptide (NT-proBNP) and adenosine triphosphate (ATP) in serum and phosphatidic acid (PA) and cardiolipin (CL) in
myocardial tissue were all detected; the pathological damage and collagen fibrosis of rat myocardial tissue were observed; the
apoptosis of myocardial cells was determined; the ultrastructure of myocardial tissue was observed; the protein expressions of
mitofusin 1 (Mfn1), Mfn2, optic atrophy protein 1 (OPA1)
Δ 基金项目 国 家 自 然 科 学 基 金 地 区 科 学 基 金 项 目(No.
and dynamin-related protein 1 (Drp1) were all detected in
82160887);广西自然科学基金项目(No.2021GXNSFAA220111);国家
中医药传承创新中心项目(No.2023019-10);广西岐黄学者培养项目 myocardial tissue. RESULTS Compared with control group,
(No.2022015-003-02);广西中医药大学研究生教育创新计划项目(No. the serum content of NT-proBNP, apoptotic rate of myocardial
YCBXJ2023024);广西高水平中医药重点学科-中医心病学项目(No. cells, and relative expressions of S-OPA1 and Drp1 proteins
2024016-02-02) were all increased significantly; serum content of ATP,
*第一作者 博士研究生。研究方向:中医药防治心血管疾病。E-
contents of PA and CL, and relative expressions of Mfn1,
mail:897400114@qq.com
# 通信作者 教授,主任医师,博士生导师。研究方向:中医药防治 Mfn2 and L-OPA1 proteins were all significantly reduced (P<
心血管疾病。E-mail:lujianqi666@163.com 0.05). There were abnormal membrane tissue structure in
· 160 · China Pharmacy 2025 Vol. 36 No. 2 中国药房 2025年第36卷第2期