Fig. 4

Content of cytokines in serum, BALF, and lung tissue from Sprague Dawley rats. (A-D) Content of (A) TGF-β, (B) TNF-α, (C) IL-8, and (D) IL-10 in serum; (E-H) Content of (E) TGF-β, (F) TNF-α, (G) IL-8, and (H) IL-10 in BALF; (I-L) Content of (I) TGF-β, (J) TNF-α, (K) IL-8, and (I) IL-10 in lung tissue. n = 6. The “n” means number of animals. Mean ± standard deviation, one-way analysis of variance was used for statistical analysis. TGF-β, transforming growth factor-β; TNF-α, tumor necrosis factor-α; IL, interleukin; BALF, broncho alveolar lavage fluid. ^**p < 0.01 vs. control group; ^##p < 0.01 vs. model group