Figure 2. Histological analysis reveals the beneficial role of resveratrol on pulmonary fibrosis. (A) Masson’s trichrome staining of lung samples in different groups on day 28 post operation (scale bar = 200 μm). (B) Lung fibrosis scores in the four groups (n = 6 in each group). *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001.