Data/hora: 03/06/2024 04:23:56

Provedor de dados: | 55
País: | Brazil
Título: | Preliminary evaluation of adherence on abiotic and cellular surfaces of Acinetobacter baumannii strains isolated from catheter tips
Autores: | Costa,Gislaine Franco de Moura; Tognim,Maria Cristina Bronharo; Cardoso,Celso Luíz; Carrara-Marrone,Floristher Elaine; Garcia,Lourdes Botelho.
Data: | 2006-10-01
Ano: | 2006
Palavras-chave: | Acinetobacter baumannii; Hydrophobicity; Adherence.
Resumo: | The cell surface hydrophobicity and adhesion to abiotic and cellular surfaces was tested in five clinical strains of Acinetobacter baumannii isolated from catheter tips. Biochemical and molecular characteristics of these strains were also studied. Hydrophobicity was characterized by a test for affinity to xylene. Adhesion to abiotic surfaces (polystyrene, formica, latex and glass) was evaluated in Petri plates using the stamp technique. Buccal epithelial cells were used for tests of adhesion to cellular surfaces. Adhesion to the catheter was evaluated by repeatedly rinsing the catheters and rolling them over nutrient agar. Molecular typing of the strains was done by the ERIC-PCR technique. The degree of hydrophobicity of the strains varied from hydrophobic to hydrophilic. All the strains adhered to the cell surfaces and to the catheters, and three of them strongly adhered to latex, polystyrene and formica. Catheter adhesion was reduced by meropenem. We found a direct relationship between the degree of bacterial hydrophobicity and adhesion to the abiotic surfaces, but not with adhesion to cellular surfaces, which suggests that different mechanisms are involved in adherence.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000500009
Editor: | Brazilian Society of Infectious Diseases
Relação: | 10.1590/S1413-86702006000500009
Formato: | text/html
Fonte: | Brazilian Journal of Infectious Diseases  v.10 n.5 2006
Fonte: | info:eu-repo/semantics/openAccess