Figure 6: Representative photomicrographs of ascending aorta and aortic roots from a syngraft (Panels A and C) and aortic root of the native heart of an apo E-KO mice. Both aorta and coronary arteries of the syngraft show massive oil red O stating. Such extensive lipidrich lesions were not observed in neither coronary arteries nor ascending aorta in the native heart. Oil red O stain X40.