FIGURE 3.

Expression of un-cleaved caspase-3 (A), cleaved-caspase-3 (B), un-cleaved caspase-9 (C), cleaved-caspase-9 (D), PRODH/POX (F) and p53 (E), in CAL-27 cells and the effect of: p-coumaric acid, chrysin, ferulic acid, and caffeic acid on the process. β-Actin was used as a control (data contained in Supplementary Presentation 1). The values represent mean ± SEM of six pooled cell homogenates extracts from three independent experiments (n = 18). The stars indicate which values were significantly different (^∗p < 0.001) compared with control.