Lp-PLA2 suppression protected against endothelial dysfunction in oxLDL-exposed human umbilical vein endothelial cells. Effect of Lp-PLA2 suppression on (A) cell viability, (B) NO and ET-1 and (C) ICAM-1 and PECAM-1 expression levels. *P<0.05 vs. control group. OxLDL, oxidized low density lipoprotein; Lp-PLA2, lipoprotein-associated phospholipase A2; NO, nitric oxide; ET-1, endothelin 1; ICAM-1, intercellular adhesion molecule 1; PECAM-1, platelet/endothelial cell adhesion molecule 1.