Fig. 13

Status of antioxidant enzymes in MCF-7 and MDA-MB-231 cells subjected to VA treatment. Immunoblots of SOD1 and Catalase expressionlevels in MCF-7 (A) and MDA-MB-231 (B) cells untreated or treated with valproic acid for 24 and 48 h. GAPDH was used as a protein loading control. Histograms represent the mean ± SD of three separate experiments in which band intensities were evaluated as optical density (OD) and expressed as fold change relative to control *p<0.05 vs Control (C).