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Cd exposure increases total glutathione in RPTEC/TERT1 cells. Total glutathione levels were significantly increased after 24 h of exposure to 1 and 10 μM Cd. Total glutathione levels were also significantly increased after exposure to 1 μM Cd for 24 h followed by a 24 h exposure to B[a]P concentrations. Bars represent mean total glutathione levels (n = 3) ± SEM. *Significant difference from 0 μM Cd, p < 0.05.
