Immunofluorescence staining for cleaved caspase-3 (p17/19 active fragments) on NSCs.

<p>(A–F, A′–F′, A″–F″) Representative photomicrographs of caspase-3 immunoreactive cells (A–F) with their nuclei counterstained by the blue fluorescent nuclear stain Hoechst33342 (A′–F′) in six experimental groups: (A-A″) Normal control group, (B-B″) STZ group, (C-C″) H₂O₂ control group, (D-D″) Catalase+STZ group, (E-E″) Salidroside+STZ group and (F-F″) Salidroside blank group. (G) Bar chart showing the percentages of caspase-3 immunoreactive cells. Values are expressed as mean±SD. Numbers within bars represent the actual numerical reading on the y-axis. ^a<i>p</i><0.05 compared with the normal control group; ^b<i>p</i><0.05 compared with the STZ group.