IL1B and fibrosis: BLM administration increase lung concentrations of IL-1β (69.16 ± 2.69 vs. 27.36 ± 1.37, p < 0.005, t-test), IL-6 (104.7 ± 13.45 vs. 17.466, p < 0.02, t-test), and TNF-α (500.09 ± 42.19 vs. 58.84 ± 4.51, p < 0.05, t-test) observed in BLM-induced fibrosis group, compared to controls (Figure 7A,C,E).