Compared to controls, SOD levels (2.285 ± 0.35 IU/gHb vs. 4.92 ± 0.86 IU/gHb, p < 0.05), CAT (1.59 ± 0.13 IU/gHb vs. 3.48 ± 0.05 IU/gHb, p < 0.003) and GSH (307 ± 22.86 nmol/mL vs. 269.8 ± 11.35 nmol/mL, p < 0.05) decreased significantly, while MDA levels (5.92 ± 0.73 IU/gHb vs. 2.56 ± 0.49 IU/gHb, p < 0.05) and ROS products (3.77 ± 0.46 a.u., vs. 0.95 ± 0.25 a.u., p < 0.002) increased statistically significantly in the lungs of i.p. BLM-controlled animals, after IPF induction. The gene discussed is CAT; the disease is idiopathic pulmonary fibrosis.