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. 2014 Feb 14;7:269–280. doi: 10.2147/OTT.S58044

Figure 4.

Figure 4

Dose-dependent depletion of antioxidant levels in MCF-7 cells after nickel nanoparticle (Ni NP) exposure. (A) Glutathione (GSH) levels.a (B) A significant negative correlation between reactive oxygen species (ROS) and GSH in MCF-7 cells after 24 hours’ exposure to 10, 25, and 50 μg/mL of Ni NPs. (C) A significant negative correlation between ROS and cell viability (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide [MTT]) in MCF-7 cells after 24 hours’ exposure to 10, 25, and 50 μg/mL of Ni NPs.

Notes: aData represented are mean ± standard deviation of three identical experiments made in triplicate. *Statistically significant difference compared with the control (P<0.05).