PRKN and silicosis: Western blot analysis indicated that the mitophagy marker Pink1 (p = 0.049, 95%CI = 0.00–0.55) and Parkin (p = 0.031, 95%CI = 0.04–0.51) were decreased in the silicosis group, while p62 (p = 0.048, 95%CI = −0.21 to 0.00) was upregulated (Figures 2B–E), suggesting that autophagic flow was inhibited.