Fig. 2. PD suppresses inflammation in pulmonary fibrosis. SD rats were divided into control group, sham group, model group and PD treated group as described in Materials and methods. (A–D) Expression of TNF-α, IL-1β, IL-6 and IL-17 was detected by Elisa assay. All data were represented as the mean ± SD from three independent experiments. *P < 0.05, **P < 0.01 compared with sham group, #P < 0.05 compared with model group.
