Abstract
Badiranji Buya Keli (BBK) is a traditional Uyghur medicine derived from Dracocephalum Moldavica Herba (DMH, the aerial part of Dracocephalum moldavica L.). BBK has been widely used in treating cardiovascular and cerebrovascular diseases. Here, the quality control of BBK was established by using HPLC analysis of rosmarinic acid and tilianin. After chemical standardization, the biological effects of BBK was tested. First, BBK inhibited platelet aggregation of rabbit plasma. Second, BBK induced vasodilation in rat aortic ring, and this effect was partially mediated by nitric oxide (NO) production in endothelial cells. Third, BBK induced NO production in cultured human umbilical vein endothelial cells (HUVECs). In HUVECs, the phosphorylation of endothelial NO synthase (eNOS) was markedly increased after application of BBK. Pre-treatment with the eNOS blocker N(ω) -nitro-l-arginine methyl ester hydrochloride could abolish BBK-induced NO production and eNOS phosphorylation. Taken together, these results suggest that BBK could exert beneficial effects in cardiovascular system, which may provide parts of molecular explanation to account for its traditional usage in Uyghur medicine.
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