Fig. 3.

DNA damage of Chinese hamster ovary cells CHO-K1 exposed for 1 h at 37°C to 1 mM urethane dimethacrylate (UDMA, light gray bars), 5 mM triethylene glycol dimethacrylate (TEGDMA, dark gray bars) singly or in combination (black bars) measured as percentage in the tail DNA in comets of alkaline comet assay. The mean value for one hundred cells analyzed in each treatment in three independent experiments is displayed, error bars represent SEM, P < 0.001 for all modes of exposure as compared with unexposed controls