实用医学杂志 ›› 2023, Vol. 39 ›› Issue (22): 2940-2945.doi: 10.3969/j.issn.1006-5725.2023.22.014

• 基础研究 • 上一篇    下一篇

五味子乙素对甲状腺功能亢进性心肌病大鼠的影响

王泽琪,高艺花(),金玥彤,丛姗姗,金铉顺   

  1. 延边大学附属医院超声医学科(吉林延吉 133000 )
  • 收稿日期:2023-06-14 出版日期:2023-11-25 发布日期:2023-12-11
  • 通讯作者: 高艺花 E-mail:gyh20021997@163.com
  • 基金资助:
    国家自然科学基金项目(81660250);吉林省教育厅“十四五”科学技术项目(JJKH20210580KJ)

The effect of schisandrae B on hyperthyroidism heart disease was evaluated by velocity vector imaging combined with NF⁃κB

Zeqi WANG,Yihua GAO(),Yuetong JIN,Shanshan CONG,Xuanshun. JIN   

  1. Department of Ultrasound,the Affiliated Hospital of Yanbian University,Yanji 133000,China
  • Received:2023-06-14 Online:2023-11-25 Published:2023-12-11
  • Contact: Yihua GAO E-mail:gyh20021997@163.com

摘要:

目的 探讨五味子乙素(SchB)对甲状腺功能亢进性心脏病(HHD)大鼠心肌细胞凋亡及心肌功能的影响,为SchB对心肌细胞凋亡及心肌功能的干预机制提供理论依据。 方法 30只11周龄雄性(SD)大鼠,除了对照组(CON组),甲亢模型组(HHD组)及SchB药物干预组(HHD+SC组)建立HHD大鼠模型,SchB药物干预组以SchB稀释剂[80 mg/(kg·d)]灌胃。对各组行速度向量成像技术(VVI)分析;ELISA检测血清TT3、TT4、NT-proBNP和NF-κB水平;TUNEL染色观察心肌细胞凋亡情况;利用 Western blot 法检测样本中NF-κB的表达,电子显微镜观察左室心肌样本的组织细胞。 结果 与CON组相比,HHD组收缩、舒张期峰值速度(Vs、Vd)、峰值应变(Smax)及收缩、舒张期峰值应变率(sSRr、dSRr)均降低(P < 0.01);血清TT3(P < 0.01)、TT4(P < 0.01)、NT-proBNP(P < 0.05)及 NF-κB(P < 0.01)含量增高;TUNEL阳性颗粒数目显著增多;Western blotting检测NF-κB表达增加(P < 0.05);电镜示心肌细胞结构排列紊乱、凋亡明显。与HHD组相比,HHD+SC组Vs(P < 0.01)、Vd(P < 0.05)、Smax(P < 0.01)、sSRr(P < 0.05)及dSRr(P < 0.05)均有升高;血清TT3(P < 0.05)、TT4(P < 0.05)、NT-proBNP(P < 0.05)及NF-κB(P < 0.01)含量降低;TUNEL阳性颗粒数目显著降低;Western blot检验NF-κB表达降低(P < 0.05);电镜示心肌细胞结构排列较整齐接近CON组、凋亡改善。 结论 SchB对HHD的心肌损伤有改善作用且可抑制心肌细胞凋亡。

关键词: 速度向量成像, NF-κB, 五味子乙素, 甲亢性心脏病, 细胞凋亡

Abstract:

Objective To investigate the effects of Schisandrin B (SchB) on myocardial function and apoptosis in Hyperthyroidism heart disease (HHD) rats, and to provide theoretical basis for the mechanism of SchB's intervention on myocardial apoptosis and myocardial function. Methods Hyperthyroidism model group and SchB drug intervention group were established into HHD rat model, and SchB drug intervention group was given SchB thinner [80 mg/(kg·d)]. Velocity Vector imaging Technology (VVI) was used to analyze each group. Serum TT3, TT4 and NF-κB levels were detected by ELISA. Apoptosis of cardiomyocytes was observed by TUNEL staining. Western blot was used to explore the expression of samples' NF-κB. The tissue cells of left ventricular samples were observed by electron microscope. Results Compared with CON group, peak systolic and diastolic velocities (Vs, Vd), peak strain (Smax) and peak systolic and diastolic strain rates (sSRr, dSRr) in HHD group were decreased (P < 0.01); The serum TT3 (P < 0.01), TT4 (P < 0.01), NT-proBNP (P < 0.05) and NF-κB (P < 0.01) concentrations increased. The number of TUNEL positive particles increased significantly. The expression of NF-κB was increased by Western blotting (P < 0.05).The structure of myocardial cells was disordered and apoptosis was obvious under electron microscope. Compared with HHD group, Vs (P < 0.01), Vd (P < 0.05), Smax (P < 0.01), sSRr (P < 0.05) and dSRr (P < 0.05) were increased in HHD+SC group; The serum TT3 (P < 0.05), TT4 (P < 0.05), NT-proBNP (P < 0.05) and NF-κB (P < 0.01) levels were decreased. The number of TUNEL positive particles decreased significantly. The expression of NF-κB was decreased by Western blot (P < 0.05). Under electron microscope, the structure of myocardial cells was more orderly and the apoptosis was reduced. Conclusion SchB can ameliorate HHD myocardial injury and inhibit apoptosis of myocardial cells.

Key words: velocity vector imaging, NF-κB, schisandrin B, hyperthyroidism heart disease, cell apoptosis

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