BAL cytokines in hypoxia/reoxygenation and effects of inhaled NO. The content of BAL TNF-α (A), macrophage inflammatory protein-2 (MIP-2) (B), IL-6 (C), and IL-1α (D) is shown for wild-type mice (closed triangles), SAD mice exposed to hypoxia/reoxygenation alone (open boxes), and SAD mice breathing inhaled NO (open circles) (n = 6 in each group). Values are expressed as means + SEMs. ^*P < .05 compared with baseline, °P < .05 hypoxia/reoxygenation versus hypoxia/reoxygenation plus NO, as determined by ANOVA with post hoc Bonferroni corrected t test.