MPO and acute respiratory distress syndrome: Among the numerous studies concerning ALI/ARDS treatment, MAGN pretreatment has been noted for its ability to significantly improve severe lung damage (caused by lung edema, alveolar wall thickening, and neutrophil infiltration), to decrease the number of total leukocytes in BALF, and to diminish lung myeloperoxidase (MPO) activity in the lungs of rodents with LPS-induced ALI [28,29,30].