FIG. 4.

Time-dependent leukocyte response to SEB. Animals received PBS (solid bars), 1 mg of dexamethasone kg⁻¹ (open bars), or 10 mg of dexamethasone kg⁻¹ (cross-hatched bars) 2 h prior to challenge with 10 μg of SEB. Differential counts of leukocytes were assessed in air pouch fluids harvested 30, 60, and 240 min after SEB challenge. The data are means ± standard errors of the means. An asterisk indicates that the P value is <0.05 compared with the data for the PBS-treated controls (n = 6 or 7).