Endothelial dysfunction plays an important role in cardiovascular diseases, including atherosclerosis, diabetes, neuronal disorders and ischemia-reperfusion injury. Thus it is very important to look for some drugs to protect endothelial cells against injury. Here in the experiments, we investigated the mechanisms of endothelial cell injury induced by oxidant stress, LPS, TNFα etc and the drugs such salvianolic acids, EGb 761 and PS916 to protect endothelial cells against damage. In addition, we also establi...