Fig 1: Angiopoietins–Tie2 expression in regions of intraplaque haemorrhage. (a) Staining of smooth muscle cell actin (SMCA), endothelial cells (CD31) and erythrocytes (Ly76) in plaque neovessels (dashed white lining) in lesion without (left panel) and with (right panel) intraplaque haemorrhage (IPH). (b) Staining of Tie2 in lesion without (left panel) and with (right panel) IPH. (c) Single staining and overlay of angiopoietin (Ang)-1 (Ang-1), SMCA and Ly76 in regions of IPH. (d) Single staining and overlay of Ang-2, SMCA and Ly76 in regions of IPH.