Scientific journal
Научное обозрение. Медицинские науки
ISSN 2500-0780
ПИ №ФС77-57452

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INTERMICROBIC INTERACTIONS BETWEEN STREPTOCOCCI AND ASSOCIATED BACTERIA ON THE MUCOSA OF THE TONSILS

Soboleva Y.V. 1 Fadeev S.B. 1
1 Institute of cellular and intracellular symbiosis UB RAS
Aim: investigation of intermicrobic interactions streptococci with assotsiant in the microbiocenosis of tonsils health and sick people. Materials and methods: tonsil surface swabs were taken from 100 microbiocenosis health people and 45 – people with chronic tonsillitis in the remission. Strains were identified. Hemolytic, antilysozyme, lysozyme activity, growth of isolated strains and its modification under the influence of symbiotes was studied. Results: the dates showed, that streptococci (S. salivarius, S. miti, S. sanguis и S. oralis) from mucus of tonsils health people suppressed expression of pathogenity and persistence factors and growth symbiotes, mainly staphylococci and aerococci. Influence the symbiotes by streptococci was solitary and more often stimulated. In the sick people more often observed stimulations of pathogenity and persistence factors symbiotes by streptococci (S. sanguis, S. oralis и S. ferus). Conclusion: we established that the streptococci from mucus of tonsils health people suppressed expression of pathogenity and persistence factors and growth symbiotes, while streptococci from mucus of tonsils sick people the opposite stimulated of pathogenity and persistence factors symbiotes.