Based on molecular docking to evaluate the protective effect of saponins from ginseng berry on D-gal-induced brain injury via multiple molecular mechanisms in mice

•To explore the effect of ginseng berries saponins on D-gal-induced brain injury.•The content of various saponins in ginseng berries was quantitatively analyzed.•Ginseng berry saponins can improve oxidative stress, apoptosis and cell aging.•Ginseng berry saponins may activate the SIRT1/Akt signaling pathway.