Effect of HBOT on mRNA expression of TNF-α, IL-6, bFGF and TGF-β1 in rats with paraquat-induced acute lung injury. A. The TNF-α mRNA expression for each group. B. The IL-6 mRNA expression for each group. C. The bFGF mRNA expression for each group. D. The TGF-β1 mRNA expression for each group. Groups: Control (C; n=7), Paraquat (PQ; n=7), Paraquat + Hyperbaric Oxygen Treatment (PQ + HBOT; n=7). Data were expressed as mean ± standard error. *P ≤ 0.05 vs control group, †P ≤ 0.05 vs PQ + HBOT group. TNF-α, Tumor necrosis factor-alpha; IL-6, interleukin 6; bFGF, basic fibroblast growth factor; TGF-β1, transforming growth factor-beta1.