RESUMO
Objective To study the variation of the level of NOS,NO and Ang (1-7) in spontaneously hypertensive rat(SHR).Methods SHR were divided randomly into 3 groups:Bushenyixin group(n=8),valsartan group (n=8),and model group (n=7).Each group was given Bushenyixin tablet,valsartan,and saline by gavage respectively.After 4 weeks,the concentration of NOS,NO,Ang (1-7) in plasma and the concentration of NOS,NO in aorta were be observed.Results The concentration of NO in plasma was significantly lower in the Bushen-Yxin group than for model group(15.500±4.375)μmol/L vs.(26.000±2.828)gmol/L,P＜0.05.The concentration of NO in aorta and Ang1-7 in plasma were significantly higher in the Bushen-Yixin group than in the model group [(35.604±7.505)μmol/L vs.(17.437± 11.649) μ mol/L,(45.542 ± 12.726)ng/L vs.(25.521 ± 2.727) ng/L,P＜0.05].The concentration of NO in aorta was significantly higher in Bushen-Yixin group than in the valsartan group [(21.537± 13.484) μmol/L,P＜0.05].Conclusion Bushen-Yixin tablet had effects of increasing of NO level in aorta and Ang (1-7) level in plasma in spontaneously hypertensive rat.