ABSTRACT

The aim of this study was to investigate dynamic thiol-disulphide homeostasis as a novel oxidative stress parameter in patients with epilepsy.

A total of 100 participants were included in the study. Of these, 50 participants were diagnosed with epilepsy and remaining 50 were healthy individuals. Total thiol (–SH+–S-S–) and native thiol (–SH) levels in serum were measured in all patients. Quantity of dynamic disulphide bond and (–S-S–) x 100 / (-SH), (–S-S-) x 100 / (–SH+–S-S–), and –SH x100 / (–SH+–S-S–) ratios were calculated from these values. Data obtained were compared between patients with epilepsy and healthy individuals.

No statically significant difference was determined between patients with epilepsy and healthy individuals in terms of total thiol, native thiol, and dynamic disulphide bond levels and (–S-S–) x 100 / (-SH), (–S-S-) x 100 / (–SH+–S-S–), and –SH x 100 / (–SH+–S-S–) ratios. Neither was there significant correlation between total thiol, native thiol, and dynamic disulphide bond levels and (–S-S–), (–S-S–) x 100 / (-SH), (–S-S-) x 100 / (–SH+–S-S–) and –SH x 100 / (–SH+–S-S–) ratios of patients and seizure frequency or duration of illness.

Oxidative stress is considered to be one of the molecular changes that are the underlying causes of epileptogenesis. In this study, we investigated dynamic thiol-disulfide homeostasis in patients with epilepsy using a new method in the literature.

Keywords: Dynamic thiol-disulphide homeostasis, epilepsy, oxidative stress, thiol metabolism