Effects of Shengmai Injection on Physiological Indices, C-reactive Protein and NO Levels in Experimental Beagle Dogs with Myocardial Ischemia / 世界科学技术-中医药现代化

ABSTRACT

This study was aimed to explore the effects of Shengmai(SM) injection on blood pressure (BP),heart rate (HR),electrocardiogram (ECG),and serum C-reactive protein (CRP) and NO levelin Beagle dogs with myocardial ischemia (MI).A total of 30 Beagle dogs were divided into 5 groups,which were the blank control group,model control group,SM injection low-dose group (0.80 mL· kg-1),SM injection high-dose group (3.20 mL· kg-1) and isosorbidemononitrate group (0.07 mL· kg-1).The MI model was established by the subcutaneous injection of isoprenaline hydrochloride,and the drug treatments were given at the same time.At 1 h,6 h,12 h,24 h after administration,changes of BP,HR and ECG were recorded;serum CRP and NO content were detected.The results showed that compared with the blank control group,the mean arterial pressure (MBP) was significantly decreased (P＜0.01),HR was significantly increased (P＜0.01,or P＜0.05),the ECG△ST value was significantly increased (P＜0.01) in the model group.SM injection could improve symptoms mentioned above,but the effectswereslow.SM injection had a significant antagonistic effect on the decreasing of CRP content and the increasing of NO content,compared with the model group.The difference was statistically significant (P＜0.01,or P＜0.05).It was concluded that SM injection could improve the physiological indices of Beagle dogs with MI,which might be related to the regulation of CRP and the inhibition of NO secretion.