Fig. 4From: Myeloperoxidase-oxidized high density lipoprotein impairs atherosclerotic plaque stability by inhibiting smooth muscle cell migrationHDL stimulates ERK pathway while oxHDL inhibits such pathway. a The native and oxHDL were applied to SMCs at a concentration of 100 μg /ml for 5, 15 and 30 min, before cells were harvested for western blot. b The band density of phospha-ERK (P-ERK), ERK was determined by Photoshop 7.0 software. The ratio of pERK/ERK were compared. (**p < 0.01 compared with HDL group)Back to article page