Figure 3. Effects of 24 hours of procyanidin treatment on apoptosis in PC-3 cells using annexin V and propidium iodide staining. (A) Control cells; (B–D) PC-3 cells treated with procyanidin of different concentrations (100, 200, and 300 µg/mL) for 24 hours; Quad indicates quadrant; UL, upper left; UR, upper right; LL, lower left; LR, lower right.