Immunochemical staining of ABCA1 and SR-BI in aortic plaques. Representative light microscopy images of aortic plaques (×40, below ×100). (A) ABCA1 staining (deep brown) in aortic plaque. (B) SR-BI staining (deep red) in aortic plaque. (C) ABCA1 and SR-BI staining positive area percentage were significantly increased in probucol group compared with atherosclerosis group. ## P < 0.01, ### P < 0.001 compared with atherosclerosis group.