Fig. 3

Effect of BHE and Betanin on the viability of HT-29, Caco-2 and KDR/293 cell lines. Cell viability was expressed as the percentage of optical density of the treated cells in comparison with untreated controls (100% viability). All the experiments were performed in triplicate (n = 3), and the data were presented as means ± SD. *P ≤ .05 and **P ≤ .01 indicate significant and highly significant vs the control group