Fig. (1) Effect of pyridoxine on the carbonylation of membrane proteins of human erythrocytes treated with an oxidizing agent. The values correspond to means ± SD of triplicate experiments of erythrocytes treated with 1, 10 and 100 μM Pyridoxine and subjected to oxidative stress with cumene hydroperoxide (100 μM). Significant inhibition of protein carbonylation in the presence of pyridoxine was noted in comparison to cumene hydroperoxide-treated erythrocytes. The difference between the values * vs # y # vs** was statistically significant (p < 0.05, Mann-Whitney U test.). Control: erythrocytes without any treatment. Px: Pyridoxine. HCum: Cumene Hydroperoxide. Control Px: erythrocytes only treated with pyridoxine.