UDC: 616.155.3-097.37:612.176:612.017.1:575.75.8

Abstract
The aim of our study is to elucidate changes in the content of pro-inflammatory interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) and anti-inflammatory cytokines interleukin-10 (IL-10) in the blood serum of guinea pigs in the dynamics of experimental immobilization stress. The dynamics of the immobilization stress is accompanied by a pronounced progression of the proinflammatory group of cytokines - TNF-α and IL-6 against theт background of declining functional activity of IL-10 at all stages of their formation (3 rd, 5 th and 15 th days) with an advantage on the 3 rd day of the experiment. The data obtained indicate an imbalance of pro- and anti-inflammatory cytokines and impaired cytokinogenesis, which is important for the pathogenesis in immobilization stress.
Key words: immobilization stress; tumor necrosis factor – α; interleukins; cytokines.

UDC: 616.314.18-002.4-099]-092.4/.9

Abstract The aim of our work was to investigate the peculiarities of changes in endogenous rates: medium mass molecules (MMM) and erythrocyte intoxication index (EII) in the blood of guinea pigs in the experimental periodontitis formation. The results of biochemical studies showed that at all stages of the development of experimental periodontitis, there is a consistent increase in the degree of endogenous with their dominance on the 15 th of the experiment relative to the control, namely, the content of medium-mass molecules (МMМ254, МMМ280) and the erythrocyte intoxication index (EII) increased in blood, respectively, by 24.8% (р≤0.05), 28.2% (р≤0.05) and 34.7% (р≤0.05) compared to the first group of animals, which indicates an increase in the processes and the important role of metabolites of endogenous intoxication and their participation in the mechanisms of formation of experimental periodontitis. 
Key words: periodontitis; stress; endogenous intoxication; medium mass molecules; erythrocyte intoxication index

The study was devoted to establishing the character of the disturbances content level of TNF-α, IL-6 and IL-10 in the
serum of guinea pigs under the conditions of experimental periodontitis and immobilization stress and to evaluate the effectiveness of the thiocetam use. Experimental studies were performed on 50 guinea pigs, which were divided into three groups. The concentration of IL-6, IL-10 and TNF-α in the blood serum was determined. Experimental combined pathology was accompanied by a gradual and significant increase in the blood content of TNF-α and IL-6 with the highest degree of manifestation on day 15 of the experiment and significant depletion of anti-inflammatory cytokine, indicating a significant predominance of proinflammatory activity of the cytokine profile. The administration of thiocetam had a positive effect on the cytokine profile and contributed to a decrease in the proinflammatory cytokine link and a significant increase in the level of interleukin-10 under conditions of experimental periodontitis and immobilization stress.