Improvement of matrine on the cardiac function and left ventricular remodeling in cardiac hypertrophy of rats
10.13699/j.cnki.1001-6821.2017.04.014
- VernacularTitle:苦参碱对心脏肥厚大鼠的心功能和左室重塑的改善作用
- Author:
Shi-Jie WEI
1
;
Jia-Wei ZHOU
;
Meng-Yue GAN
;
Hui MA
;
En-Hui WEN
;
Hong-Wan DANG
Author Information
1. 宁夏医科大学总医院临床药理研究室
- Keywords:
matrine;
left ventricular hypertrophy;
cardiac function;
left ventricular remodeling;
insulin-like growth factor-1;
transforming growth factor-β1
- From:
The Chinese Journal of Clinical Pharmacology
2017;33(4):338-342
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of matrine on the cardiac function and left ventricular remodeling in rats with isoproterenol (ISO) -induced cardiac hypertrophy.Methods Seventy-two adult male SD rats were randomly divided into six groups as follows:normal group,model group,control group (matrine 200 mg · kg-1 · d-1),large-,medium-and small-dose experimental groups(matrine 200,100,50 rng · kg-1 · d-1),and there were 12 rats in each group.The 5 mg · kg-1 · d-1 isoproterenol (ISO) was subcutaneously injected to establish the model of chronic pathological left ventricular hypertrophy in model group and experimental groups.The 0.9％ NaCl was administrated to rats in normal group and control group.The aforementioned medications were offered once daily to 12 rats of each group for 7 successive days.On day 8,cardiac function was evaluated by the biological function experiment system.The hematoxylin-eosin staining was used to observe pathological morphology changes of the left ventricular tissues.Insulin-like growth factor-1 (IGF-1) and transforming growth factor-β1(TGF-β1)levels in serum were determined by ELISA.Expression levels of IGF-1and TGF-β1 genes in myocardial tissues were detected by real time fluorescence quantitative PCR method.Results After drug-concerned treatment,serum IGF-1 levels in normal group,model group,control group,large-,medium-and small-dose experimental groups were separately (2.04 ± 0.52),(3.66 ± 0.97),(2.08±0.95),(1.98 ± 0.98),(1.93 ±0.78) and (1.59 ± 0.48)ng · mL-1;moreover,serum TGF-β1 levels in those groups were (94.11 ±10.63),(139.98 ± 37.64),(90.36 ± 30.02),(84.55 ± 45.70),(74.74 ± 42.18) and (72.84 ± 21.43) pg · mL-1.In contrast with model group,the serum IGF-1 or TGF-β1 levels were lowered in other groups (P ＜ 0.05).Similarly,expression levels of cardiac IGF-1 genes in normal group,model group,control group,large-,medium-and small-dose experimental groups were sequentially 3.34 ± 3.27,10.91 ± 7.44,3.09 ± 1.86,0.62 ± 0.44,0.64 ± 0.26,1.00 ± 0.35;furthermore,expression levels of cardiac TGF-β1 genes were successively 0.70 ± 0.67,10.97 ± 9.86,0.63 ± 0.32,1.25 ± 0.98,1.76 ± 2.40,0.86 ± 0.46;and hence the TGF-β1 gene levels in model group were much higher than those of other groups (P ＜ 0.01).Conclusion Matrine significantly improved the cardiac function in rats with ISO-induced left ventricular hypertrophy and simultaneously regulated the cardiac hypertrophy-causing cytokines.
