The functional state of a thiol disulfide link of the antioxidant system was evaluated in 45 patients with recurrent herpesvirus infection in the recurrence and interrecurrence periods. Impaired free radical oxidation in these patients is one of the leading pathogenetic factors of biomembrane structural and functional changes. The study of the blood antioxidant system demonstrated that the patients with herpesvirus infections had lower levels of SH groups, decreased thiol/disulfide ratio, and higher content of SS groups, which shows the predominance of the oxidant system over the antioxidant ones.
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