Figure 4. Monocyte retention in the bone marrow in CCR2^–/– mice.

apoE^–/– mice were fed a high-fat Western diet for 3.5 weeks. (A) CCR2^–/– mice had fewer 7/4^bri monocytes in the blood than CCR2^+/+ mice. **P < 0.01; n = 4 mice per group. (B) Bone marrow cells were recovered and stained with 7/4 and Ly-6G. CCR2^–/– mice had an increase in the 7/4^bri population. Error bars represent SD. *P < 0.05; n = 4 mice per group.