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The wide spread of drug-resistant forms of the pathogens, complicating prevention and treatment of acute intestinal infections, determines the feasibility of using bacteriophages and immune lactoglobulins for antibacterial therapy of these diseases. The aim of this study was to investigate the antibacterial efficacy of the joint use of immune lactoglobulin and Salmonella bacteriophage in the treatment of experimental salmonellosis in mice. The experimental Salmonella infection was reproduced by means of a single intragastric administration of 2LD50 of daily agar culture of S.typhimurium. As a result, the development of Salmonella infection lasting up to 14 days was noted. The animals were divided into four groups according to the pattern of the treatment. The following preparations were used for the treatment of animals: «Lactoglobulin against opportunistic bacteria and Salmonella» dry cow, «Lactoglobulin» liquid, bacteriophage of Salmonella ABCDE groups, liquid. The preparations were daily administered to mice orally after the infection for 7 days. In the study of the joint therapeutic effect of the lactoglobulin and bacteriophage the special attention was paid to the terms of elimination of the pathogen from animal organs. Analysis of the data showed that in all four groups a positive dynamics of excretion of the pathogen of mice was revealed. In groups of animals that were treated with both drugs, the elimination of Salmonella out of organs occurred 1.5 times faster than in the control groups of mice. At the same time in the experimental groups on the third day of treatment with preparations the statistically significant decrease in the number of S.typhimurium in the contents of the large intestine of animal was revealed. The study found that immune lactoglobulin used simultaneously with Salmonella phage for 7 days reduced the severity and duration of the disease course and blocked the further development of the infectious process, promoted the efficient and rapid cleansing of animals organism of the pathogen, increased the survival of mice. The obtained data suggest the applicability of joint use of immune lactoglobulin preparations and bacteriophages in the treatment of acute intestinal infections caused by antibiotic-resistant strains of Salmonella.

About the authors

N. V. Aleksanina

Rostov Research Institute of Microbiology and Parasitology

Author for correspondence.
Email: nataly10_09@mail.ru

Natalya V. Aleksanina - PhD (Biology), Senior Researcher, Laboratory of Sanitary Microbiology of Water Bodies and Human Microbial Ecology.

344010,Rostov-on-Don, Gazetny per., 119. Phone: +7 (863) 234-70-55 (office); +7 961 288-02-59 (mobile)

Russian Federation

O. V. Moiseyeva

Rostov Research Institute of Microbiology and Parasitology

Email: fake@neicon.ru

Junior Researcher, Laboratory of Sanitary Microbiology of Water Bodies and Human Microbial Ecology

Russian Federation


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Copyright (c) 2017 Aleksanina N.V., Moiseyeva O.V.

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