-/-bone marrow chimeras (BMCs) at days 7 and 15 after ICH. Right: Quantification of residual hematoma volume in the WT and Ccr2 -/-BMCs. n = 11 at day 7; n = 9 at day 15. *P < 0.05 by Student's t test. (B) Cylinder test and apomorphine turning test from WT and Ccr2 -/-BMCs at day 15 after ICH. n = 6/group for cylinder test; n = 8/ group for apomorphine turning test. *P < 0.05 by Student's t test. (C) Cylinder test, neurological deficit score, and corner test in control-and anti-CCR2 antibody-treated mice at days 1 and 3 after collagenase ICH. n = 7/group. *P < 0.05 by 1-way repeated-measures ANOVA and Bonferroni's post hoc test. (D) Top: Representative coronal sections show hematoma from control-and anti-CCR2 antibody-treated WT mice after blood injection ICH at 7 days. Bottom: Quantification of hematoma volume, n = 3/ group. *P < 0.05 versus control by Student's t test. (E) Top: Representative coronal sections show hematoma in the isotype control-and anti-CCR2 antibody-treated mice from collagenase model at day 12. Bottom: Quantification of hematoma volume. n = 8/group. *P < 0.05 versus control by Student's t test. (F) The cylinder test, neurological deficit score, and corner test in isotype control-and anti-CCR2 antibody-treated ICH mice at days 3, 5, 7, 9, and 11 after collagenase ICH surgery. n = 8/group. *P < 0.05 versus isotype control group by 1-way repeated-measures ANOVA and Bonferroni's post hoc test. αCCR2, anti-CCR2 antibody.