Fig. 4

trans-Resveratrol affect glutathione redox state MCF-7 cells were treated up to 24 h with 50 μg/ml trans-resveratrol. At the indicated time points, cells were collected, exhaustively washed with PBS and used for GSH (a) and GSSG (b) assay by HPLC. Data are expressed as nmol of GSH or GSSG/mg total protein. Values represent means ± SD (n = 5). *P < 0.05; **P < 0.01; versus untreated cells