A, E Serial aortic valve cross-sections were stained with Mac3 antibody, (N=16–29 mice per group). B, G. Aortic valve section were stained with trichrome (N=16–29 mice per group). C, H. Snap-frozen aortic valve sections were stained with Oil Red O (N=6–7 mice per group). D, I. TUNEL assay co-stained with Mac3 antibody (N=5–6 mice per group). Data is normalized to 1000 Mac3+ cells. Insert showing TUNEL+/Mac3+-positive plaque cells. F. Mac3/DAPI double positive cell number was normalized to total number of DAPI positive cells in the plaque. (N=13 mice per group). Scale bar, 100 μm. All statistical tests are Student’s two-tailed t-test, except (G), which has a Welch’s correction to account for a difference in SDs. L=Lumen