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A,B: FaDu and Cal-27 cells were treated with 0.5 µM AUR and/or 1 mM BSO for 24 h, then analyzed for percentage glutathione disulfide (%GSSG, (A)) and thioredoxin redox status (B). Dithiotrietol (DTT, 2 mM) or 2 mM H2O2 was added for 15 min to control lysates as positive controls for reduced and oxidized thioredoxin respectively (B). *, p<0.05 versus control (CON); ¥, p<0.05 versus BSO or AUR.
