Research Article

Ameliorative Effects of Arctigenin on Pulmonary Fibrosis Induced by Bleomycin via the Antioxidant Activity

Figure 4

(a) Immunofluorescence detection of ROS. (b)–(e) Expression of ROS, Nrf-2, HO-1, and NQO-1 by immunohistochemistry. (f)–(i) Statistical analysis of ROS, Nrf-2, HO-1, and NQO-1 by immunohistochemical detection (, , vs. the PF group; #, ##, ###, #### vs. the Sham group).