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Thiol/disulfide homeostasis as a novel indicator of oxidative stress in children with simple febrile seizures

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Abstract

Simple febrile seizures are generally benign, but during the seizure, elevated levels of glutamate and high levels of oxygen use due to the high metabolic brain activity result in oxidative stress. However, the relationship between febrile seizures and oxidative stress remains unclear. In this study, we investigated thiol/disulfide homeostasis as a new oxidative stress parameter in patients with simple febrile seizures. This study was performed between February 2016 and May 2016 at the Pediatric Emergency Unit. The study population consisted of 40 patients with a diagnosis of simple febrile seizure and 30 control participants aged 8–59 months. Total thiol, native thiol and disulfide levels, disulfide/native thiol, disulfide/total thiol, and native thiol/total thiol ratios were used as thiol/disulfide homeostasis parameters and were quantified in patient and control groups. Furthermore, correlations with seizure duration were investigated. In the patient group, native and total thiol levels and native thiol/total thiol ratios were low, and disulfide levels, disulfide/native thiol, and disulfide/total thiol ratios were significantly higher than in the control group. Negative correlations were observed between seizure duration, total and native thiol levels, and native thiol/total thiol ratio, whereas positive correlations were observed between seizure duration and disulfide/native thiol and disulfide/total thiol ratio. The sensitivities of both disulfide/native thiol and disulfide/total thiol ratios were high for simple febrile seizures. Simple febrile seizures may cause impairment in favor of disulfide bonds in thiol/disulfide homeostasis. Overall, these changes may contribute to neuronal cell damage after simple febrile seizures.

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Authors and Affiliations

  1. Department of Pediatrics, Faculty of Medicine, Sakarya University, Sakarya, Turkey

    Bahri Elmas & Dilek Ersavaş

  2. Department of Biochemistry, Faculty of Medicine, Yıldırım Beyazıt University, Ankara, Turkey

    Özcan Erel

  3. Department of Emergency, Faculty of Medicine, Sakarya University, Sakarya, Turkey

    Yusuf Yürümez

Authors
  1. Bahri Elmas
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  2. Özcan Erel
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  3. Dilek Ersavaş
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  4. Yusuf Yürümez
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Correspondence to Bahri Elmas.

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This study was not funded.

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The authors declare that they have no conflict of interest.

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Elmas, B., Erel, Ö., Ersavaş, D. et al. Thiol/disulfide homeostasis as a novel indicator of oxidative stress in children with simple febrile seizures. Neurol Sci 38, 1969–1975 (2017). https://doi.org/10.1007/s10072-017-3087-2

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  • DOI: https://doi.org/10.1007/s10072-017-3087-2

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