As shown in Figure 2 (Table S1), the lung indexes of the ALI mice were remarkedly reduced after ITN was administered (25, 50, and 100 mg/kg, p < 0.05), and the lung tissue MPO activity of the ALI mice also decreased after ITN treatment (50 and 100 mg/kg, p < 0.05). The gene discussed is MPO; the disease is acute respiratory distress syndrome.