Fig. 5. Effect of hemin on the serum levels of interleukin (IL)-6 and tumor necrosis factor-
α (TNF-α) in mice with pulmonary fibrosis. (A) Serum IL-6 levels of the mice in each group. (B) Serum TNF-α levels of the mice in each group. The significance of difference was determined by one-way ANOVA followed by Tukey’s test. The data are presented as the means ± standard deviations. There were six mice in each group. **p < 0.01 compared with the control group. ##p < 0.01 compared with the bleomycin group.
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