C Forestier

..4%), gelatinase (58.6%), aggregation substance (48.3%) and cytolysin (17.2%). Bacterial adherence was not significantly associated with any of these virulence factors...

..These results suggest that the diffusely adhering E. coli organisms isolated in the present study are not true intestinal pathogens but may be regarded as resident colonic strains...

..These findings emphasize the prominent role played by metabolic function in the colonization process of such a complex ecosystem as the host GI tract...

..Our hypothesis was that an indigenous flora should exhibit a protective effect against secondary colonization...

..These results suggest that an efflux pump can confer measurable ecological benefits on K. pneumoniae in an environment with high competition potential...

..In this study, we characterised the genes encoding type 3 fimbriae from CAUTI strains of Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Citrobacter koseri and Citrobacter freundii...

..These results show the pleiotropic role of ampR in the pathogenesis process of K. pneumoniae...

..coli 17.2. No major protein subunit was detected at the surface of EAggEC 457 compared to the bacterial surface extract of E. coli 17.2...

..Together, these findings suggest that this probiotic strain could be used to prevent colonization of the gastrointestinal tract by a large variety of pathogens...

..The primer pairs designed to amplify these five regions allowed us to develop rapid and highly specific PCR-based identification methods for the probiotic strain L. rhamnosus 35...

..The strain of serogroup O142 exhibited both adhesion to human enterocytes and localized adherence to HEp-2 cells, which suggests that the adhesive systems of enterotoxigenic and enteropathogenic Escherichia coli may coexist...

..The high pathogenicity island of Yersinia was detected in 16.3% of the strains and was more often associated with isolates resistant to nalidixic acid and augmentin...

..AI-2 therefore seems to act as a regulator of biofilm formation and LPS synthesis in sessile K. pneumoniae cells...

..No effect of Lcr35 was observed in a double-blind placebo randomized study, involving nine patients...

..Only one mutant was attenuated in both the murine colonization and the in vitro adhesion models, and the sequence disrupted by the transposon had homology to adhesin-encoding genes of Haemophilus sp...

..These results show the pleiotropic role of oxyR in K. pneumoniae gastrointestinal colonization...

..These results give new insight into the bacterial factors sequentially associated with the ability to colonize an abiotic surface and reveal the dual roles played by surface exopolysaccharides during K. pneumoniae biofilm formation...

..These findings suggest that Lcr35 is able to survive within the gastrointestinal tract...

..These data suggest that a LuxS-dependent signal plays a role in the early stages of biofilm formation by K. pneumoniae...

..We determined the bactericidal effect of 60% ethanol (ETOH) versus a 46.7% trisodium citrate (TSC) solution on biofilm embedded in silicone catheters...

..The possessing of capsule or plasmid-encoded factors would have a bacterial cost, including a weaker capacity for adhesion...

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..The constant improvement of knowledge of the role of human microbiota and the growing popularity of probiotics are now opening the door to new prophylactic and therapeutic strategies in human health...

..Transposon insertion sites in attenuated mutants were, among others, in genes encoding well-known K. pneumoniae virulence factors such as lipopolysaccharide and capsule, as well as in genes of unknown function...

..A clone of CTX-M-15-producing Escherichia coli has recently been reported to be spreading through Europe and Africa. The aim of this work was to thoroughly characterize this clone...