Flow cytometric analyses, after the exclusion of doublets, LIVE/DEAD Fixable Near-IR Dead Cell Dye positive cells, and a selection of Hoechst 33342 positive cells (Figure S5D) revealed a raise in LYVE-1+CD64+ aortic macrophages in the atherosclerosis-prone aortic arch (Figure 4A,E,F) and abdominal aortas of Apoe−/− mice (Figure 4G,K,L) in response to hypercholesteremia. Here, FCGR1A is linked to atherosclerosis.