A) CD68 staining of aortic sinus of Ldlr−/− mice following 8 weeks HFD at 22°C or 30°C ambient temperature challenge, with quantification (B). C) Following clodronate liposome and bead labeling of Ly6C+ monocytes, Ldlr−/− mice on HFD were assayed for bead deposition into plaque regions of the aortic sinus, and (E) quantification of beads recruited per section. E) Total blood and bone marrow cellularity was measured following bead labeling. C) Percentage of blood and bone marrow monocytes were calculated by flow cytometry. (A-D) Data presented are combined between 3 independent experiments and include n≥10 animals per group. (E-F) Data include 4–5 animals per group and are representative of three independent experiments. Statistical analysis was performed by unpaired student T-test, * p≤0.05, **p≤0.01.