Effects of ketamine treatment on changes in total and differential cell numbers in BALF from ovalbumin-sensitized and -challenged rats. The total (A) and differential (B) cell numbers were counted in BALF from rats in the various treatment groups. Bars represent mean ± SEM (n = 6–8/group). # P < 0.05 vs. PBS control, * P < 0.05 vs. OVA control. The groups are as shown in Figure 1.