Effect of Traditional Drug Therapy and its Combination with Soderm®-Forte and New Injectable Form of Rexod® on the Antioxidant-prooxidant Red Blood Cell System in Rats with Experimental Periodontitis

Background. The development of periodontitis is strongly linked with both periodontopathogenic microflora and antioxidant-proxidant system disorders, which determines the need for the combined use of antimicrobial and antioxidant agents.Objectives. A comparative evaluation of the antioxidant-prooxidant system of red blood cells in rats with experimental periodontitis against the background of the traditional drug therapy and its combination with Soderm®-Forte and new injectable form of Rexod®.Methods. The authors conducted a comparative study of the effect of traditional drug therapy (TDT) and its combination with Soderm®-Forte gel containing silver nanoparticles, recombinant human superoxide dismutase (Rexod®) and new injectable form (NIF) of Rexod® on the condition of the antioxidant-prooxidant system of red blood cells in rats with experimental periodontitis (EP). The experiments were performed on Wistar male rats of 210–230 g. EP was induced by ligature method. The rats were randomly divided into 5 comparable groups of 12 animals: group 1 — with intact periodontium; group 2 — with EP; group 3 — with EP, where TDT was used, including oral irrigation with chlorhexedine (0.05% solution) and application of Septo-Pack dento-gingival dressing; group 4 — with EP, TDT and Soderm®-Forte gel (applied into the periodontal pockets of the lower incisors); group 5 — with EP, TDT in combination with Soderm®-Forte gel and NIF of Rexod®, which was injected intraperitoneally at a dose of 8000 U/kg. Treatment of rats with EP (groups 3–5) was carried out for 12 days. The observation period for all animals lasted 42 days. The biochemical tests and the antioxidant-prooxidant index were used to assess the condition of antioxidant-prooxidant system. Statistical analysis of the obtained results was carried out with parametric and non-parametric methods of Microsoft Excel (Microsoft, USA), Analysis package and AtteStat, as well as Statistica 8.0 (StatSoft, USA) software.Results. The application of TDT against the developed EP caused a moderate positive correction of the indicators of Antioxidant protection system (APS). The enrichment of TDT for the EP animals with Soderm®-Forte and especially Soderm®-Forte in combination with NIF of Rexod® to enhance the APS potential caused more significant positive dynamics of the balance in the antioxidant-prooxidant system compared to TDT.Conclusion. The combination of TDT with Soderm®-Forte and NIF of Rexod® has the most significant positive corrective effect on the condition of antioxidant-prooxidant system of red blood cells in rats with EP in comparison with the complex of TDT with Soderm®-Forte and TDT used separately.