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J Antimicrob Chemother. 2003 Feb;51(2):401-4.

Effect of ciprofloxacin on adhesive properties of non-P mannose-resistant uropathogenic Escherichia coli isolates.

Author information

1
Department of Microbiology, Rosario University School of Biochemistry and Pharmacy, and Institute for Molecular and Cellular Biology (IBR-CONICET), Suipacha 531, Rosario 2000, Argentina.

Abstract

The influence of sub-MIC of ciprofloxacin on the surface properties of 25 non-P mannose-resistant uropathogenic Escherichia coli (UPEC) strains was studied. Thirteen isolates responded to antibiotic treatment with an increase in haemagglutination titre and/or surface hydrophobicity, which correlated with a higher expression of surface proteins. Only UPEC strains with ciprofloxacin-enhanced hydrophobicity increased their adhesiveness to urinary catheters that correlated, in one analysed case, with a dramatic increase in the number of fimbriae peripherally located. The overall results indicate that sub-MICs of ciprofloxacin could increase the adhesiveness, and hence the risk of colonization by UPEC strains expressing mannose-resistant adhesins different from type P.

PMID:
12562710
DOI:
10.1093/jac/dkg048
[Indexed for MEDLINE]

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