Paris chinensis dioscin induces G2/M cell cycle arrest and apoptosis in human gastric cancer SGC-7901 cells

Figure 1 Paris chinensis dioscin inhibits the viability of SGC-7901 cells. A: Morphological changes of SGC-7901 cells exposed to Paris chinensis dioscin (PCD) for 24 h imaged under a phase contrast microscope at 40 ×; B: Effect of PCD on SGC-7901 viability. SGC-7901 cells were treated with PCD at the indicated concentrations for 0-72 h. Cell viability was then determined by 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl tetrazolium bromide assay and expressed as the mean ± SD, n = 3. The optical density value at 570 nm is proportional to the number of cells with PCD.