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transaminase (AST), creatine kinase (CK) and lactate dehydrogenase (LDH) in the serum of mice were detected; cardiac function
indexes [heart rate, left ventricular ejection fraction (LVEF), left ventricular end systolic diameter (LVESD), left ventricular end
diastolic diameter (LVEDD), left ventricular mass index and whole heart mass index] were all detected; the histopathological
morphology of mice myocardium was observed; the level of cardiomyocyte apoptosis in mice was detected; mRNA expression
levels of B-cell lymphoma 2 (Bcl-2), Bcl-2 associated X protein (Bax), and Cleaved-caspase-3 in myocardial tissue of mice were
detected; the phosphorylation levels of sarcoplasmic reticulum calcium regulatory related proteins [ryanodine receptor 2 (RyR2) and
phospholamban (PLB)] in myocardial tissue of mice were detected. RESULTS Compared with the blank group, the body weight,
total distance of open field action, swimming exhaustion time, LVEF, LVEDD, Bcl-2 mRNA expression level in myocardial tissue
and PLB protein phosphorylation level in the model group were significantly reduced/shortened (P<0.05); TCM syndrome score,
the percentage of immobility time, heart rate, LVESD, left ventricular mass index, whole heart mass index, cardiomyocyte
apoptosis rate, the contents of CK, LDH and AST in serum, mRNA expression levels of Cleaved-caspase-3 and Bax and the
phosphorylation level of RyR2 protein in myocardial tissue were significantly increased (P<0.05); there were inflammatory cell
infiltration, disordered cell arrangement and obvious myocardial interstitial fibrosis in myocardial tissue. After the intervention of
Shengmai powder, most of the above quantitative indexes in mice were significantly reversed (P<0.05), the inflammatory cell
infiltration in myocardial tissue was reduced, and the degree of fibrosis was significantly reduced. CONCLUSIONS Shengmai
powder can improve cardiac function, reduce the level of cardiomyocyte apoptosis and myocardial fibrosis in HF mice with qi-yin
deficiency. Its mechanism may be related to the regulation of the expression of sarcoplasmic reticulum calcium regulation related
proteins.
KEYWORDS Shengmai powder; qi-yin deficiency; heart failure; ryanodine receptor 2; phospholamban; sarcoplasmic reticulum
心力衰竭(heart failure,HF)是主要以心脏结构受损 胞凋亡角度出发,继续探讨生脉散对气阴两虚型 HF 小
或功能障碍引起心室舒张或收缩功能异常为特征的心 鼠的改善作用及机制,以期为生脉散的临床应用提供
[1]
脏循环障碍 。HF 的临床症状通常包括疲劳、呼吸困 参考。
[2]
难、水肿以及心功能下降、器官血液灌注减少等 。据统 1 材料
计,中国 HF 患病率为 1.10%,已成为我国备受关注的公 1.1 主要仪器
共卫生问题之一 [3―4] 。研究发现,发生HF时心肌细胞的 Vevo 2100型超高分辨率小动物超声成像系统购自
®
2+
[5]
收缩力减弱与细胞内 Ca 调控失衡密切相关 ,心肌细 加拿大 FUJIFILM VisualSonics 公司;A40426 型聚合酶
胞内Ca 浓度的变化不仅与L型钙离子通道引起的Ca 2+ 链式反应(PCR)仪、NanoDrop 2000C型超微量分光光度
2+
内 流 有 关 ,还 与 雷 诺 丁 受 体 2(ryanodine receptor 2, 计购自美国 Thermo Fisher Scientific 公司;BX53 型倒置
2+
®
RyR2)介导的肌质网Ca 释放以及受磷蛋白(phospholam‐ 显微镜购自日本 Olympus 公司;Mini-PROTEAN Tetra
ban,PLB)介导的肌质网Ca 回收密切相关 。细胞凋亡 型凝胶电泳槽购自美国Bio-Rad公司。
[6]
2+
是心肌细胞坏死的重要驱动因素,可致心脏中有效细胞 1.2 主要药品与试剂
数量减少,使心肌收缩力降低,从而无法维持正常心功 人参配方颗粒(1 g 配方颗粒相当于生药 5 g)、五味
[7]
能,导致HF 。 子配方颗粒(1 g 配方颗粒相当于生药 1.5 g)、麦冬配方
中医中并无 HF 的概念,根据 HF 的临床表现,可将 颗粒(1 g 配方颗粒相当于生药 3.3 g)(批号分别为
其归为“心悸”“怔忡”“喘症”“水肿”范畴。气阴两虚证 1035613、A2033953、1081483)均由河北省中医院提供;
[8]
为 HF 最常见的证型之一 ,多由年老体衰、外邪入侵或 酒石酸美托洛尔片(批号 2211049,规格 25 mg/片)购自
先天不足等引起,可导致心气亏虚、神疲乏力,最终气不 阿斯利康制药有限公司;D-半乳糖(批号WXBD1824V)
化水形成瘀堵,损及心阴、心阳。生脉散出自《内外伤辨 购自北京兰杰柯科技有限公司;天冬氨酸转氨酶(aspar‐
惑论》,为益气养阴的代表方剂,由人参、麦冬、五味子 3 tate transaminase,AST)、肌酸激酶(creatine kinase,CK)、
味药组成,可荣养气血、收敛耗散之气,临床实践证实其 乳酸脱氢酶(lactate dehydrogenase,LDH)的酶联免疫吸
[9]
对气阴两虚型HF治疗有效 。本课题组前期研究发现, 附试验(ELISA)试剂盒(批号分别为 JM-10641R2、JM-
2+
2+
生脉散可通过减少肌质网Ca 渗漏,促进Ca 回收,提高 02031R2、JM-11249R2)均购自江苏晶美生物科技有限
[10]
心肌收缩力 ,但是其改善气阴两虚型 HF 的具体作用 公 司 ;TUNEL 试 剂 盒 、Masson 染 色 液(批 号 分 别 为
机制仍不够明确。基于此,本研究从肌质网钙调控和细 G1501、G1006)均购自武汉赛维尔生物科技有限公司;
· 2128 · China Pharmacy 2025 Vol. 36 No. 17 中国药房 2025年第36卷第17期

