Effect of 1-day cigarette smoke exposure on BAL leukocyte numbers.

The leukocyte counts in the BAL are described for males (A-D) and females (E-H) after 1-day sham or smoke exposure. A, E: leukocytes; B, F: macrophages; C, G: neutrophils; D, H: lymphocytes. Data are expressed as the total number of each leukocyte subtype in the BAL fluid. Analysis by ANOVA with Bonferroni’s post hoc test. Significance compared to (*) sham-exposed WT, (†) smoke-exposed WT, (‡) sham-exposed βENaC. Analysis by unpaired t-test: significance compared to (§) sham-exposed WT, (¶) smoke-exposed WT, (||) sham-exposed βENaC. Single symbols indicate p values < 0.05, double symbols indicate p values <0.01, and triple symbols indicate p values <0.001. Bars represent mean ± SEM.