Figure 7.

DNA damage in HepG2 cells treated with strawberry tree aqueous leaf extract (STE) and arbutin in vitro for 24 h and in the negative control (NC) sample, as measured by the alkaline comet assay. For each sample, two hundred independent comet measurements were performed per sample and experimental point. Tail intensity and tail length were chosen as the main descriptors for DNA damage. Hydrogen peroxide (H₂O₂, 100 µM) applied for 10 min served as a positive control (PC). Results are expressed as mean/median, interquartile range, and range of measured values (min–max).