MPO and acute respiratory distress syndrome: The results revealed that more cells were positive for the neutrophil-specific marker MPO in the ARDS group than in the Sham, and their number significantly reduced under the TAG pretreatment (TAG + ARDS, 27.49 ± 3.29 vs. ARDS, 62.25 ± 7.12, p < 0.01; Figures 3A, B).