Expression of AMPKα and p-AMPKα in oxLDL-exposed human umbilical vein endothelial cells following treatment with SB-435495 and compound C. Lane 1, control; lane 2, SB-435495; lane 3, SB-435495 + compound C. *P<0.05 vs. control group; &P<0.05 and $P<0.01 vs. SB-435495 group. OxLDL, oxidized low density lipoprotein; p-AMPKα, phosphorylated-AMP-activated protein kinase alpha.