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J Clin Lab Anal. 2013 May;27(3):227-30. doi: 10.1002/jcla.21589. Epub 2013 Feb 25.

Determination of total oxidative stress and total antioxidant capacity before and after the treatment of iron-deficiency anemia.

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  • 1Faculty of Medicine, Department of Pediatrics, Fatih University, Ankara, Turkey.



Oxidative stress is an imbalance between the reactive oxygen species and antioxidant system. In this study, total oxidative stress (TOS) and total antioxidant capacity (TAC) were investigated with a new and practical method in childhood iron-deficiency anemia.


During the study period 80 children between 6 and 60 months were enrolled; 40 children (study group) had iron-deficiency anemia, and 40 children (control group) were healthy. Complete blood count, serum iron, iron-binding capacity, ferritin levels, TOS, and TAC were evaluated. Children diagnosed iron-deficiency anemia were treated with oral ferric iron. After 2 months of the treatment, blood tests of the study groups were repeated to check the challenge.


TAC was similar between both groups (1.55 ± 0.26 in control group 1.53 ± 0.19 mmol Trolox Eq./l). Additionally, TOS was significantly higher in iron-deficiency anemia group before treatment with iron (24.3 ± 18.5, in controls groups 14.4 ± 7.1 mmol Trolox Eq./l). We have shown that TAC did not change (before treatment 1.55 ± 0.26, after treatment 1.54 ± 0.26 mmol Trolox Eq./l) although TOS decreased significantly after the treatment of iron-deficiency anemia (before treatment 24.3 ± 18.5, after treatment 12.4 ± 6.9 mmol Trolox Eq./l). We did not find any correlation between hemoglobin, serum iron, iron-binding capacity, ferritin levels, and TOS or TAC among iron-deficiency anemia patients.


As a result of this study, oxidative stress increases in children with iron-deficiency anemia and this increase can be returned to normal levels by treatment.

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