Figure 1

In vitro HDAC inhibitory activity of ethanolic crude extract, solvent extraction fractions, and phenolic-rich extract. The concentration of each sample in a reaction mixture was 200 μg/50 μl. Results were expressed as relative HDAC activity with respect to the vehicle control (DMSO). Sodium butyrate (NaB) was used as a positive control. Each value represents the mean ± SD of three experiments, performed in duplicate. Asterisks (*) denote significant differences vs control (p < 0.05).