Effects of zedoary oil on apoptosis-related Bcl-2 and Bax protein expression in AGS cells. (A) Effects of zedoary oil on apoptosis-related protein Bcl-2 and Bax expression in AGS cells. The control cells were AGS cells cultured in Ham’s/F-12 medium containing 10% FBS and 0.1% DMSO. The cells were incubated with zedoary oil for 24 h, collected and measured for their Bax and Bcl-2 protein expression by western blot analysis. 1: control; 2: 60 μg/mL; 3: 90 μg/mL; 4: 120 μg/mL. (B) Effects of zedoary oil on the ratio of Bax/Bcl-2 expression.