FN1 and idiopathic pulmonary fibrosis: Compared with the IPF group, the ratio of lung W/D was significantly decreased in the IPF + MitoQ, IPF + YFT, and IPF + MitoQ + YFT groups (P < 0.01, Figure 1(a)), and the expression of Col IV and FN could be inhibited in the group that were treated with MitoQ + YFT by immunohistochemistry testing (Figures 1(c) and 1(d)).