CD68 and coronary artery disorder: Both the CD68-positive cells (each surgical group vs. control: p < 0.001) and RAGE-positive cells (AS vs. control: p < 0.001, AS+CAD vs. control: p = 0.001, CAD vs. control: p < 0.001) were significantly more abundant in the surgical groups than in the controls (Figure 4a,b).