Figure 4

The expression of the phospho-NF-κB p65 subunit in lung tissues of different groups was detected by immunofluorescence staining under laser scanning confocal microscopy (magnification, ×400). a Group S; b, group M; c, group D1; d, group D2; e, group B1; f, group B2; and g, Group B3. Cells positive for phospho-NF-κB p65 were stained green, with the sections counterstained with 4,6-diamidino-2-phenylindole (DAPI) to visualize nuclei.