Skip to main content
. 2023 Mar 1;20:54. doi: 10.1186/s12974-023-02744-7

Fig. 5.

Fig. 5

Berberine increases hippocampal DG and CA1 subregional synaptic plasticity and adult neurogenesis induced by CORT. a Representation of the timing of experiments and illustration of the image of the target of PFC and hippocampus. b Hippocampal DG images show the decreasing signal intensity of PSD95 and SYN in the CORT group, and both BBR100 and BBR200 increased the PSD95 + and SYN + cell number (One-way ANOVA, F (3, 8) = 10.12, P = 0.0043; Dunnett’s multiple comparisons test, CORT vs. Control, P = 0.0021, CORT vs. BBR100, P = 0.0251, CORT vs. BBR200, P = 0.0081, n = 3 in each group). Scar bar, 100 µm. c Representation of the immunofluorescence labeling of hippocampal CA1, CORT significantly decreased the PSD95 + and SYN + cell number compared to BBR100 and BBR200 (One-way ANOVA, F (3, 8) = 84.63, P < 0.0001; Dunnett’s multiple comparisons test, all comparisons P < 0.0001, n = 3 in each group). Scar bar, 100 µm. d NeuN (red) and BrdU (green) in hippocampal DG images (One-way ANOVA, F (3, 8) = 155.0, P < 0.0001; Dunnett’s multiple comparisons test, all comparisons P < 0.0001, n = 3 in each group). Scar bar, 50 µm. e DAPI (blue) and DCX (red) in hippocampal DG images (One-way ANOVA, F (3, 8) = 220.0, P < 0.0001; Dunnett’s multiple comparisons test, all comparisons P < 0.0001, n = 3 in each group). Scar bar, 100 µm. f percentage of PSD95 + /SYN + area in hippocampal DG. g percentage of PSD95 + /SYN + area in hippocampal CA1. h BrdU + cell density in hippocampal DG. i DCX + cell density in hippocampal DG. j Western blotting assay for PSD95 and SYN, the CORT mice showed a significant difference in the expression of PSD95 and SYN (Two-way ANOVA, row factor F (1, 19) = 11.90, P = 0.0027, column factor F (3, 19) = 30.06, P < 0.0001; Dunnett’s multiple comparisons test, all comparisons P < 0.0001, n = 3 in each group). Bar graphs show the mean ± SEM; *P < 0.05, **P < 0.01, and ***P < 0.001. CORT corticosterone, BBR berberine, ANOVA analysis of variance, DG dentate gyrus, DCX Doublecortin, BrdU Bromodeoxyuridine, PSD95 postsynaptic density protein 95, SYN synapsin