Neutrophil intracellular glutathione levels. Neutrophils (10 × 10⁶/5 mL) were incubated with LPS (1 μg/mL) (□) or cross-linked with antibodies to CD11b (8 μg/mL) (▪). *P < .05 versus control (○). Results are the mean ± SD for n = 3 experiments with three separate donors of neutrophils.