oxLDL induced the endothelial dysfunction in human umbilical vein endothelial cells. Effect of oxLDL on (A) cell viability, (B) NO and ET-1 expression and (C) on ICAM-1 and PECAM-1 expression levels. *P<0.05 vs. normal group. OxLDL, oxidized low density lipoprotein; NO, nitric oxide; ET-1, endothelin 1; ICAM-1, intercellular adhesion molecule 1; PECAM-1, platelet/endothelial cell adhesion molecule 1.