Inhibition and machanisms of total saponins from Panax notoginseng on apoptosis of hippocampal CA1 subfield neurons of rats following global cerebral ischemia Emodin enhances antitumor effect of gemcitabine in model of SW1990 cell xenograft on athymic mouse Effects of Rubus parviflolius on neuronal apoptosis and expression of apoptotsis related protein in rat after local cerebral ischemic-reperfusion