Objective:To investigate the effects of Ginsenoside Rg3 on the morphology and vasomotor function of arteries in aged rats.Method:The 40(12-month-old)SD rats were randomly divided into observation group(group B,10rats)and treatment group(group C,10rats).Treatment group rats were randomly divided into three groups(group C1,C2,C3)based on different ginsenoside Rg3 dose.Group C1,C2,C3 were given ginsenoside Rg3 5,10,20mg/kg/d orally for 8months and B group were given placebo.The 10(3-month-old)SD rats were recr...