Groups Parameters Cu μg/dl Zn μg/dl Cu/Zn
Group 1 (Control) 134.3 ± 5.52 99.43 ± 4.41 1.39 ± 0.12
Group 2 (ALL before treatment) 296.4 ± 6.05a  67.4 ± 3.5a 4.7 ± 0.3a
  292.5±15.99a   2.87 ± 0.23a,b
Table 8: Serum copper and zinc levels and Cu/Zn ratio in all studied groups (Values are means ± S.E.M. Group 1 (n)=10, Group 2 (n)=25, Group 3 (n)=20, a P < 0.05 compared to control group and b P < 0.05 compared to ALL cases before treatment. )