ANXA5 and gastric cancer: To elucidate whether the effects of G. thunbergii extract on the proliferation and viability of gastric cancer cells were associated with induction of apoptosis, the prevalence of apoptotic cells was determined using Annexin V staining, following treatment of YCC-2 and SNU-668 cells with 250 μg/mL of G. thunbergii extract.