[The complex evaluation of condition of intestinal and nasopharyngeal microbiocenosis in alumni of children's home].

The examination of nasopharyngeal and intestinal microbiocenoses was implemented in orphan children aged 1-3 years residing in children;s home of Cheremkhovo of the Irkutskaia oblast. All children had compromised anamnesis: prematurity, hypotrophy, chicken pox, frequent acute respiratory viral infections, intestinal infections, atopic dermatitis. The study was carried out to comprehensively evaluate conditions of intestinal and nasopharyngeal biotops in children residing in closed children’s institution - children’s home.

[The detection of occurrence rate of genes coding capability to form pili binding in auto-strains of Escherichia coli].

E. coli is a commensal of intestine of the vertebrata. The exchange of genetic material of different types of bacteria between themselves and with other representatives of family of Enterobacteriaceae in intestinal ecosystem results in development of types of normal colibacillus with genetic characteristics of pathogenicity that can serve as a theoretical substantiation to attribute such strains to pathobionts.

[In vitro evaluation of influence of medicinal plant decoctions and antibacterial antibodies to bifidobacteria on bifidobacterium adhesion].

Natural antibodies to the surface antigens of bifidobacteria contained in blood sera and determined in the passive hemagglutination test blocked the adhesion of bifidobacteria to human red blood cells in vitro. The decoctions of medicinal plants, often used by pediatricians for therapeutic purposes, were found to have a pronounced inhibiting effect on the adhesion of bifidobacteria after the preliminary treatment of both microorganisms and human red blood cells by these decoctions. Suggestion was made on the possible role of natural human antibodies in changing the contents of the indigenous intestinal microflora; the prolonged use of preparations obtained from medicinal plants could probably produce negative influence on the microbiocenosis of the intestine.