Compared with pulmonary hemorrhage in wild-type mice, in EC-SOD-deficient mice 1 h after pulmonary hemorrhage neutrophil aggregation, myeloperoxidase activity was increased 3.9 times, and NF-κB and lipid peroxidation enzyme activity was increased by 1.5 times. Here, NFKB1 is linked to Pulmonary hemorrhage.