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. 2015 Apr 8;2:600–608. doi: 10.1016/j.toxrep.2015.03.013

Fig. 1.

Fig. 1

Cytotoxicity of Cr(VI) in HepG2 cells. (A) Cell viability relative to the control (100%) in HepG2 cells was measured using the MTT. Cells were pre-treated with 5 mM NAC for 1 h and then exposed to different concentrations of Cr(VI) in μM for 24 h. All values were expressed as mean ± S.E.M. (n = 3).*P < 0.05 compared to the control. #P < 0.05 compared with the Cr(VI)-treated groups. (B) Cell cycle analysis after treatment with different concentrations of Cr(VI) in μM for 24 h. M1 represents the percentage of sub-G1g populations.