Effect of Songlingxuemaikang on mild essential hypertension in patients: a randomized parallel-controlled study

To evaluate the effect of songlingxuemaikang (SLXMK) on mild essential hypertension in patients in terms of endothelial function.We enrolled 90 patients with mild essential hypertension in Xuanwu Hospital from January 2016 to December 2016. To evaluate the effects of SLXMK, the 90 patients were randomly assigned at a 2∶1 ratio into 2 groups: the SLXMK group (500 mg per capsule, 4500 mg/d, n = 60) and the losartan potassium group (50 mg per table, 50 mg/d, n = 30). The total study period was 12 weeks, and the changes of blood pressure, laboratory test and endothelium function were compared between two groups.After 12 weeks of treatment with SLXMK, blood pressure (BP) and plasma lipid levels significantly improved (P0.05). Meanwhile, the reactive hyperemia index (RHI) increased in the SLXMK group (P0.05). The results of multivariate logistic regression analyses examining the association of selected variables with showed that high level of oxidized low density lipoprotein (ox-LDL) was positively associated with endothelial dysfunction.SLXMK not only effectively decreased BP and plasma lipid levels, but also reduced ox-LDL and RHI in patients with mild essential hypertension. And SLXMK might improve endothelial function through decreasing the circulating ox-LDL.