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  • Title: Antioxidative-oxidative balance in epilepsy patients on antiepileptic therapy: a prospective case-control study.
    Author: Keskin Guler S, Aytac B, Durak ZE, Gokce Cokal B, Gunes N, Durak I, Yoldas T.
    Journal: Neurol Sci; 2016 May; 37(5):763-7. PubMed ID: 26829936.
    Abstract:
    Oxidative stress has been implicated in various disorders, including epilepsy. The aim of this study was to investigate the oxidant and antioxidant status of patients with epilepsy using antiepileptic drugs regularly and to compare them with healthy subjects. We investigated serum catalase (CAT), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and xanthine oxidase (XO) levels in 58 epilepsy patients and 25 healthy controls. Patients were divided into polytherapy (n = 17) and monotherapy (n = 41) groups, and antioxidant status was compared between the two groups and controls. There was no significant difference between the patient and control groups in terms of age or gender (p > 0.05). The mean duration of illness in the patients was 14.8 years, and the mean duration of treatment was 11.4 years. Comparison of the patient and control groups in terms of oxidative stress and antioxidant defence parameters revealed significantly higher MDA, GSH-Px, XO and lower level of CAT, SOD levels (p < 0.05). There were no differences in CAT, MDA, GSH-Px or SOD levels between the monotherapy and polytherapy groups; but the XO level was higher in the monotherapy group (p < 0.05). Although the XO level was decreased by polytherapy, it was higher than in controls. Our study found significantly low level of antioxidants in patients with epilepsy as compared to control. Thus, antiepileptic treatment did not improve oxidative stress parameters. Furthermore, our results show that polytherapy does not change the situation as compared with monotherapy. Antioxidant replacement therapy may benefit these patients.
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