Fig. 6. Expression levels of phosphorylated Tyrosine (P-Tyr) measured in untreated erythrocytes or in Mg²⁺-treated erythrocytes (control) or in erythrocytes treated with either 300 μM, or 600 μM or 1 mM H₂O₂ (A), or with 10 mM Mg²⁺ + either 300 µM, or 600 µM H₂O₂ or 1 mM H₂O₂ (B), detected by Western blot analysis. 10 mM Mg²⁺ n.s. not significant versus untreated erythrocytes; 300 µM H₂O₂, 10 mM Mg²⁺ + 300 µM H₂O₂ n.s. versus control; 10 mM Mg²⁺ + 600 µM H₂O₂ and 10 mM Mg²⁺ + 1 mM H₂O₂ n.s. not significant versus 600 μM H₂O₂ and 1 mM H₂O₂ respectively; * p<0.05 versus control.