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Blood Selenium Concentration and Blood Cystatin C Concentration in a Randomly Selected Population of Healthy Children Environmentally Exposed to Lead and Cadmium

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Abstract

This study aimed at evaluation of a relationship between blood selenium concentration (Se-B) and blood cystatin C concentration (CST) in a randomly selected population of healthy children, environmentally exposed to lead and cadmium. The studies were conducted on 172 randomly selected children (7.98 ± 0.97 years). Among participants, the subgroups were distinguished, manifesting marginally low blood selenium concentration (Se-B 40–59 μg/l), suboptimal blood selenium concentration (Se-B: 60–79 μg/l) or optimal blood selenium concentration (Se-B ≥ 80 μg/l). At the subsequent stage, analogous subgroups of participants were selected separately in groups of children with BMI below median value (BMI <16.48 kg/m2) and in children with BMI ≥ median value (BMI ≥16.48 kg/m2). In all participants, values of Se-B and CST were estimated. In the entire group of examined children no significant differences in mean CST values were detected between groups distinguished on the base of normative Se-B values. Among children with BMI below 16.48 kg/m2, children with marginally low Se-B manifested significantly higher mean CST values, as compared to children with optimum Se-B (0.95 ± 0.07 vs. 0.82 ± 0.15 mg/l, p < 0.05). In summary, in a randomly selected population of healthy children no relationships could be detected between blood selenium concentration and blood cystatin C concentration. On the other hand, in children with low body mass index, a negative non-linear relationship was present between blood selenium concentration and blood cystatin C concentration.

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Acknowledgments

This work was supported by the European Union through its Sixth Framework Programme for RTD (contract no FOOD-CT-2006-016253). It reflects only the author’s views. The Community is not liable for any use that may be made of the information contained therein.

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Correspondence to Paweł Gać.

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Funding

This study was funded by the European Union through its Sixth Framework Programme for RTD (contract no FOOD-CT-2006-016,253).

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed Consent

Written informed consent was obtained from one parent or a caregiver and an oral consent from the child.

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Gać, P., Pawlas, N., Wylężek, P. et al. Blood Selenium Concentration and Blood Cystatin C Concentration in a Randomly Selected Population of Healthy Children Environmentally Exposed to Lead and Cadmium. Biol Trace Elem Res 175, 33–41 (2017). https://doi.org/10.1007/s12011-016-0758-4

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  • DOI: https://doi.org/10.1007/s12011-016-0758-4

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