Calycosin Alleviates Injury in Airway Epithelial Cells Caused by PM 2.5 Exposure via Activation of AMPK Signalling

Figure 3

Immunofluorescence analysis of the NF-κB p65 distribution in B2B cells of different groups (40 × magnification; red = NF-κB p65; blue = DAPI staining of nuclei).