SUPRESSION OF BIOFILMS OF OPPORTUNISTIC BACTERIA IN URINARY CATHETERS

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Abstract

Aim. Study regularities of development of bacterial biofilms in opportunistic bacteria in urinary catheters, as well as a possibility of their suppression by an officinal preparation of plant origin - Kanefron and nitrofuran class preparation - Furamag. Materials and methods. Escherichia coli Ml7 and Staphylococcus aureus 193 cultures were cultivated as biofilms on an inner surface of Foley latex catheter. Effect of Kanefron and Furamag on the ability of these strain to form biofilms was evaluated, as well as suppression of already developed biofilm of E. coli M17 and S. aureus 193 on urine catheters. Determination of bactericidal effect of preparations during incubation of microorganisms on the surface of urine caterers was carried out by Koch method. Morphologic and i ultrastructure changes in bacterial cells and biofilms were studied by transmission and scanning j electron microscopy. Results. A pronounced bactericidal effect of Kanefron and Furamag on the formed bacterial biofilms was detected. Inhibiting effect on growth and development of biofilms of the strains was noted. Destructive changes in cells and biofilms during the effect of the studied preparations are shown on electron microscopy level. Conclusion. The detected bactericidal effect of officinal preparation of plant origin - Kanefron and nitrofuran class preparation - Furamag on opportunistic bacteria on Foley urine catheters allows not only to suppress biofilm formation process of E. coli M17 и S. aureus 193 compared with classic antiseptic methods, but also effectively destroy already formed biofilms that must prevent development of catheter-associated infections and result in enhancement of recuperation of patients with diseases of the urinary tract.

About the authors

O. V. Rybalchenko

St. Petersburg State University

Author for correspondence.
Russian Federation

M. V. Erman

St. Petersburg State University

Russian Federation

O. G. Orlova

St. Petersburg State University

Russian Federation

T. M. Pervunina

St. Petersburg State University

Russian Federation

V. V. Kapustina

St. Petersburg State University

Russian Federation

E. N. Pariyskaya

St. Petersburg State University

Russian Federation

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Copyright (c) 2017 Rybalchenko O.V., Erman M.V., Orlova O.G., Pervunina T.M., Kapustina V.V., Pariyskaya E.N.

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