中国临床药理学杂志2024，Vol.40Issue(1)：57-61,5.DOI:10.13699/j.cnki.1001-6821.2024.01.012
基于PI3K/Akt/GSK3β信号通路探索黄芪甲苷对慢性心力衰竭大鼠心肌肥厚的影响
Effects of Astragaloside Ⅳ on cardiac hypertrophy in rats with chronic heart failure based on PI3K/Akt/GSK3β signaling pathway
摘要
Abstract
Objective To investigate the effects of astragaloside Ⅳ on cardiac hypertrophy in chronic heart failure(CHF)rats,and the regulation of phosphoinositol-3-kinase/protein kinase B/glycogen synthase kinase 3 β(PI3K/Akt/GSK3β)signaling pathway.Methods CHF rat model was established by anterior descending coronary artery ligation,and randomly divided into model group,control group and experimental-L,-M,-H groups,with 8 rats in each group.Another 8 rats were hooked up without ligature as blank group.The experimental-L,-M,-H groups were given 20,40 and 80 mg·mL-1 astragaloside solution according to the dose of 5 mL·kg-1.The control group was given 1.50 mg·kg-1 lisinopril solution at a dose of 5 mL·kg-1.Both blank group and model group were given equal volume of 0.9％NaCl.Six groups of rats were given the drug once a day for 8 weeks by intragastric administration.The cardiac function of rats was measured by echocardiography,the cross-sectional area of cardiomyocytes was observed by wheat embryo lectin staining,and the expression levels of PI3K,Akt and GSK3β were detected by Western blot.Results The left ventricular ejection fraction of experimental-H,control,model and blank groups were(66.27±5.18)％,(67.75±4.98)％,(46.67±3.68)％and(81.65±6.46)％;left ventricular end-diastolic diameter was(0.53±0.05),(0.55±0.05),(0.45±0.02)and(0.57±0.05)mm;the cross-sectional areas of cardiomyocytes were(1.97±0.13),(1.61±0.18),(3.56±0.59)and(1.00±0.04)mm;the relative expression levels of phosphorylated PI3K protein were 0.45±0.04,0.71±0.07,0.11±0.02 and 0.85±0.06;the relative expression levels of phosphorylated Akt protein were 0.43±0.05,0.75±0.06,0.10±0.03 and 0.82±0.06;the relative expression levels of phosphorylated GSK3 β protein were 0.47±0.04,0.85±0.05,0.12±0.04 and 0.89±0.08,respectively.The above indexes of experimental-H group and control group were significantly different from those of model group(all P＜0.05).Conclusion Astragaloside Ⅳ can improve cardiac dysfunction and inhibit myocardial hypertrophy in CHF rats,which may be related to the regulation of PI3 K/Akt/GSK3 β signaling pathway.关键词
黄芪甲苷/慢性心力衰竭/磷酸肌醇-3-激酶/蛋白激酶B/糖原合成酶激酶-3β信号通路/脑钠肽/游离脂肪酸Key words
Astragaloside Ⅳ/chronic heart failure/phosphoinositide-3-kinase/protein kinase B/glycogen synthase kinase-3β signaling pathway/brain natriuretic peptide/free fatty acid分类
医药卫生引用本文复制引用
王林燕,李超,马明怡,盛晓生..基于PI3K/Akt/GSK3β信号通路探索黄芪甲苷对慢性心力衰竭大鼠心肌肥厚的影响[J].中国临床药理学杂志,2024,40(1):57-61,5.基金项目
金华市重大(重点)科学技术研究计划基金资助项目(2021-3-028) （重点）
