Figure 1From: Melatonin enhances DNA repair capacity possibly by affecting genes involved in DNA damage responsive pathwaysDNA damage repair capacity as assessed by the Comet Assay. (A) Representative cell images from each of the four treatment groups using MCF-7 cells. (B) Mean Olive tail moment determined from each of the four treatment groups using HCT-15 and MCF-7 cells. Among the samples not treated with mutagen, the difference in tail moment between cells in the control group and MLT-treated group was not significant in both cell lines (p=0.976 for MCF-7, p=0.928 for HCT-15). However, among the mutagen-treated populations, cells with MLT pretreatment had a significantly shorter mean Olive tail moment (p<0.0001 in both cell lines) compared to cells without MLT pretreatment. The error bar corresponds to mean±SD.Back to article page