Figure 2.

Quercetin increased apoptosis in IR treated keloid fibroblasts. A. Flow cytometry analysis of keloid fibroblasts treated with different concentrations of quercetin and IR. B. Flow cytometry analysis of keloid fibroblasts treated with quercetin alone. C. Histogram representing the percentage of necrosis and apoptosis in both experiments. At 24 h post-radiation, the degree of apoptosis increased in a dose-dependent manner, and the radiation-treated group showed a higher degree of apoptosis than the parallel untreated contrast group. (*, P<0.05; **, P<0.01).