Effects of humulon on kinetic constants of NAT1 in SGC-7901 cells Inductive effect of Cortex Periplocae extract on apoptosis of human gastric cancer cells BGC-823 Effect of total glycosides from Ranunculus japonicus on vasculogenic mimicry of human gastric cancer MGC803 cell line and its mechanism Research on effect of Celastrus orbiculatus extract on inhibiting invasion and metastasis of human gastric cancer SGC-7901 cells by mediating matrix metalloproteinases group and their inhibitors Effect of sea pyrimidine on apoptosis of human gastric cancer cell SGC-7901