Figure 2. En face view of aortic surface lesions. Oil Red O (ORO) staining was performed on an aorta, and no atherosclerotic lesions were observed in all groups. A, control; B, atherogenic diet (AtD); C, 1B (1mg/kg BaP); D, 1BA (AtD + 1mg/kg BaP); E, 5B (5mg/kg BaP); F, 5BA (AtD + 5mg/kg BaP).