The effect of Zuo Gui Jiang Tang Ling(ZGJTL) on the cultured human umbilical vein endothelial cell (HVEC) responding to high glucose significantly augmented the transformation of glucose and the release of von Willebrand factor (vWF) from HVEC. In nonhigh glucose group, the transformation of glucose and the release of vWF were promoted by ZGJTL and diamicron. In high glucose group, diamicron only inhibited the release of vWF and ZGJTL not only significantly inhibited the release of vWF, but also markedly promoted the transformation of glucose. These findings suggested that ZGJTL has marked fun...