Figure 2: Evaluation of the antigenotoxic effects of silibinin by the comet assay. Results are expressed as mean ± standard deviation (SD). Percentage reduction in MMS-induced damage by SB. Negative control: 100 µL of dimethylsulfoxide (DMSO) + sterile distilled water (1:1). Positive control: methyl methanesulfonate (MMS) (800 µM). P < 0.05 versus MMS.