(A) Lung myeloperoxidase (MPO) activity concentrations in Fas-deficient (lpr), Fas ligand–deficient (gld), and wild-type (C57) mice 12 and 24 hours after hemorrhagic shock and sepsis (HEM+CLP). n = 8 per group. Statistical analysis involved two-way ANOVA followed by the Student-Newman-Keuls test. *P < 0.05 versus corresponding sham group, #P < 0.05 versus corresponding group 24 hours after HEM+CLP, +P < 0.05 versus lpr 12 hours after HEM+CLP. (B) Quantification of total bronchoalveolar lavage (BAL) protein in Fas-deficient (lpr), Fas ligand–deficient (gld), and wild-type (C57) mice 12 hours after HEM+CLP. n = 6 per group. Statistical analysis involved one-way ANOVA followed by the Student-Newman-Keuls test. *P < 0.05 versus sham group, #P < 0.05 versus lpr, +P < 0.05 versus gld.