A study on the effects of pica and iron-deficiency anemia on oxidative stress, antioxidant capacity and trace elements

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Abstract

Pica is defined as developmentally inappropriate consumption of nonnutritive substances for at least 1 month. There are a few studies on serum trace element levels of patients with pica. The literature contains contracting data on the levels of oxidative stress and antioxidant levels in patients with iron-deficiency anemia (IDA). The effect of pica on oxidative stress and antioxidant capacity has not been investigated yet. The present study evaluated the effects of pica and IDA on oxidative stress and antioxidant capacity as well as on the levels of trace elements including serum zinc and selenium in 47 children with IDA plus pica, 22 children with IDA only and 21 nonanemic children as controls. The results demonstrated significantly lower levels of serum selenium and zinc in pica and IDA groups compared to the control group. Total oxidant levels were highest in the pica group and consistently, the lowest total antioxidant capacity was observed again in the pica group. Comparison of pica and IDA groups yielded significantly lower levels of total antioxidant levels and significantly higher oxidative stress index in the pica group. Consequently, it is thought that the detrimental effects of pica within the organism were mediated by adverse impacts on antioxidant capacity and oxidative stress. These effects should be kept in mind while managing patients with pica. © The Author(s) 2013.

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Bay, A., Dogan, M., Bulan, K., Kaba, S., Demir, N., & Öner, A. F. (2013). A study on the effects of pica and iron-deficiency anemia on oxidative stress, antioxidant capacity and trace elements. Human and Experimental Toxicology, 32(9), 895–903. https://doi.org/10.1177/0960327113475676

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