Figure 2.

PCBLs, OPAs and PPAs increase apoptosis of OVCAR-3 human ovarian cancer cells. (A) Flow cytometric analysis was used to assess cell apoptosis rates following annexin V/propodium iodide double labeling. (B) The histogram indicates the rates of apoptosis in the cells (%). Data is presented as the mean ± standard deviation from 3 independent experiments. *P<0.05 vs. 0 µg/ml, ^#P<0.05 vs. 20 µg/ml. PCBL, Chinese bayberry leaf prodelphinidin extract; OPA, oligomeric proanthocyanidin; PPA, polymeric proanthocyanidins.