MPO and Sepsis: Pulmonary dysfunction was measured by pulmonary neutrophils (at 0-6,35,39,40 7-24,32,35,39,40 25-48,35,39,40 and > 72 hours35 post sepsis induction) and MPO activity (at 0-6,35,40 7-24,29,35,40 25-48,35,40 and > 72 hours35 post sepsis induction; Table 3; Supplementary Fig. S5).