Fig. 2

PAE organizes the structure of hippocampus in rats. A Morphological analysis was performed under ultrastructure by electron microscope (×400). B Morphological analysis was performed under light microscope by hematoxylin and eosin staining (×400). C The quantitative analysis of nuclear structure (C, a–d) and mitochondrial structure (C, e–h) in hippocampal CA3 region. All data is expressed as mean ± SEM. N is 6 in each group. *P < 0.05 vs. Model group. All results were analyzed using a one-way ANOVA followed by Newman–Student’s t-test