Figure 3. Fluoxetine treatment attenuated PV deficit after combined stress. (A) Schematic timeline of the experimental procedure. (B–D) Representative images of PV interneurons in all subregions of the hippocampus. (E) Quantification of mean PV immunofluorescence in the hippocampus. Data are shown as mean ± SEM (n = 4), *P < 0.05 vs control group, #P < 0.05 vs LS group, scale bar = 100 μm. Con, control; LPS, lipopolysaccharide; Flu, fluoxetine; IF, immunofluorescence; LS, LPS + stress.