THE IMPORTANCE OF CYTOKINES OF ORAL FLUID AND PERIODONTOPATHOGENIC MICROBIOTA IN THE DEVELOPMENT OF GINGIVITIS AGAINST THE BACKGROUND OF PSYCHOEMOTIONAL STRESS IN CADETS OF THE DEPARTMENTAL INSTITUTE

Abstract

Subject. Such a cytokine as transforming factor β (TFRß) deserves special attention in stress-induced gingivitis, since there are observations indicating its ability to stimulate the differentiation of myofibroblasts, which results in an increase in collagen production, the development of fibrous changes in the gum, which ultimately lead to tooth loss. Goal. The aim is to determine the relationship between the development of signs of depression, the frequency of detection of periodontal pathogenic bacteria and the spectrum of cytokines that play a likely role in the pathogenesis of gingivitis in cadets of the departmental institute under conditions of psychoemotional stress. Methodology. Psychological testing, clinical dental and laboratory examinations of 71 cadets of the departmental institute (41 women, 30 men) aged from 18 to 23 years were conducted. The detection of depression was carried out using the A. Beck scale, reactive and personal anxiety — Ch. Spielberger — Y.L. Khanin. To assess the periodontal condition, traditional hygienic and periodontal indices (OHI-s, RNR, PMA) were used. Identification of the marker DNA of periodontal pathogenic bacteria was carried out using a polymerase chain reaction using a test kit "Multident-5" manufactured by NPF GenLab (Russia). The content of cytokines in saliva was determined by solid-phase enzyme immunoassay. For the detection of IL-1β, IL-4, IL-10, IL-12, IFNu, TNFa, sets of NPO "Vector Best" (Russia) were used, for the cytokine TFRß — from Biosource (Canada). Results. It was found that the development of depression and gingivitis is accompanied by changes in the cytokine status, the main pathogenetic significance is IL-1β and TFRß, and the auxiliary is IL-12 and TNFa. At the same time, the cytokines IL-1β and TNFa are associated with the severity of the course of gingivitis. Conclusions. A correlation was established for the cytokines IL-1β, TNFa and TFRß with the first-order periodontopathogenic species A actinomycetemcomitans and T. forsythia.