Fig. 6.

Percentage of HepG2 (1) and GAS (2) cells in different phases of the cell cycle after treatment with extracts of a B. correifolia—Bc; b B. verbascifolia—Bv, c B. fagifolia—Bf; d B. intermedia—Bi; negative (PBS); positive (B[a]P—5.04 µg/mL or DXR 0.2 μg/mL) and solvent (SV) control groups. The cultures were exposed to the compounds for 24 h. The results represent mean values ± SD of independent cultures in triplicate. Asterisk values differ significantly from the negative control group as analyzed by the ANOVA and Tukey test