Figure 2: Blueberry polyphenolic enriched extract increased proliferation of HepG2 cells differentially based on the concentration. Cells were treated with vehicle or polyphenolic extract (6.25-100 μg/ml) for 96 h and then stained for phospho-histoneH3. Nuclei were stained with DAPI. A) Depicts the percent positive cells. Data are presented as mean ± SEM of percent positive cells of 3 independent experiments (b: p<0.001). Means that do not share letters are significantly different from each other. B) Representative images of immunofluorescent slides.