N I Ignatova, V V Elagin, T S Ivanova, T M Kharitonova, A E Antonyan, O S Streltsova
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Evaluation of the potential pathogenicity of microorganisms associated with urinary calculi.
Due to the prevalence of postoperative complications in the treatment of urolithiasis, the study of the contamination of urinary calculi and the potential pathogenicity of isolated bacteria is of great importance in laboratory diagnostic practice. It has been shown that uropathogenic bacteria are found in the composition of urinary stones in 65±7.1% of cases, mainly representatives of the Enterobacteriaceae and Staphylococcaceae families. Bacteria of the generas Escherichia, Enterococcus, Staphylococcus were most frequently detected. The analysis of biofilm activity and antibiotic resistance in 50 uropathogenic strains was carried out. It was shown that all the studied strains were resistant to at least two tested drugs, and the average value of the multiple resistance index was 0.51. When cultured on nutrient agar with Congo red, it was shown that more than half of the tested strains have high biofilm activity and about 80% potential for biofilm formation. The greatest biofilm activity was observed in bacteria of the generas Escherichia, Klebsiella, Enterobacter, Staphylococcus.
期刊介绍：
The journal deals with theoretical and practical problems of clinical laboratory diagnosis, publishes editorial articles, reviews of literature, original articles, short reports, discussions, book reviews, current events, materials which may assist the practitioners, methods of laboratory investigations used in medicine, materials on the results of practical application of new methods of investigation in the following fields of clinical laboratory diagnosis: hematology, cytology, coagulation, biochemistry, immunology.
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