RESUMEN
Objective To evaluate the effects of aqueous extract from Semen Lepidii seu Descurainiae(SLD) on myocardial hypertrophy induced by isoprenaline(ISO) and L-thyroxine(L-Thy) in experimental mice and rats.Methods The myocardial hypertrophy models of mice were prepared by daily sc ISO 2 mg/kg for 7 d and of rats by daily ip L-Thy 0.3 mg/kg for 10 d.The mice were given aqueous extract from SLD 6 and 12 g/kg or Metoprolol 0.06 g/kg by ig administration once a day for 7 d,then the changes of cardiac indexes,plasma concentration of cAMP,and angiontensin Ⅱ(AngⅡ) content in myocardium were measured.The rats were given the aqueous extract from SLD 4 and 8 g/kg or Captopril 0.02 g/kg once a day for 10 d,then the changes of cardiac indexes,plasma concentration of ALD,AngⅡ content in left ventricle,and hydroxproline(Hyp) level were measured.Results Compared with the normal mice,cardiac indexs,plasma concentration of cAMP,and Ang Ⅱ content were remarkably increased in the model group(P