Bacteriocins Pep5 and Epidermin Inhibit Staphylococcus epidermidis Adhesion to Catheters |
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Authors: | Mariana Buss Cezar Fontana Maria do Carmo Freire de Bastos Adriano Brandelli |
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Institution: | 1. Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Av. Bento Gon?alves 9500, 91501-970, Porto Alerge, Brazil 2. Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro, Cicade Universitária, 21941-590, Rio de Janeiro, Brazil
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Abstract: | Pep5 and epidermin bacteriocins were tested on clinical strains of Staphylococcus epidermidis and S. aureus isolated from catheter-related infections. These bacteriocins were inhibitory to several isolates at a concentration of 640
activity units mL−1. The ability of bacteriocins in inhibiting adhesion of S. epidermidis to silicone catheters was evaluated. When Pep5 and epidermin were added to in vitro catheter colonization experiments, there
was a significant decrease in the cell number of S. epidermidis adhered to silicone catheters. Bacteriocins used to decrease bacterial attachment to medical devices may represent a novel
strategy to control catheter-related infections. |
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