SCARB1 and atherosclerosis: Plasma lipid concentrations or the capacity of VLDL-sized lipoproteins to induce macrophage cholesterol loading were similar for hypomSR-B1–KOliver and SR-B1 KO mice, although atherosclerosis was reduced in hypomSR-B1–KOliver due to a decrease in macrophage content compared to SR-B1.