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Mostrando ítems 1-10 de 18
Artículo
Uptake and intracellular activity of fluconazole in human polymorphonuclear leukocytes
(American Society for Microbiology, 1993-01-01)
The penetration of fluconazole into human polymorphonuclear leukocytes (PMNs) and tissue culture epithelial cells (McCoy) was evaluated. At different extracellular concentrations (0.5 to 10 mg/liter), fluconazole reached ...
Artículo
Photodynamic inactivation of staphylococcus aureus biofilms using a hexanuclear molybdenum complex embedded in transparent polyHEMA hydrogels
(American Chemical Society, 2020)
Three new photoactive polymeric materials embedding a hexanuclear molybdenum cluster (Bu4N)2[Mo6I8(CH3COO)6] (1) have been synthesized and characterized by means of Fourier-transform infrared spectroscopy (FTIR), ...
Artículo
Mutant prevention concentrations of fluoroquinolones for Enterobacteriaceae expressing the plasmid-carried quinolone resistance determinant qnrA1
(American Society for Microbiology, 2007-06-01)
The influence of qnrA1 on the development of quinolone resistance in Enterobacteriaceae was evaluated by using the mutant prevention concentration parameter. The expression of qnrA1 considerably increased the mutant ...
Artículo
Intracellular penetration and activity of DX-619 in human polymorphonuclear leukocytes
(American Society for Microbiology, 2006-09-01)
The intracellular penetration and activity of DX-619 in human polymorphonuclear leukocytes have been evaluated. DX-619 reached intracellular concentrations 10 times higher than the extracellular concentrations reached. ...
Artículo
In vitro effect photodynamic therapy with differents photosensitizers on cariogenic microorganisms
(BioMed Central, 2015)
Background Antimicrobial photodynamic therapy has been proposed as an alternative to suppress subgingival species. This results from the balance among Streptococcus sanguis, Streptococcus mutans and Candida albicans in ...
Artículo
Energy-dependent accumulation of norfloxacin and porin expression in clinical isolates of Klebsiella pneumoniae and relationship to extended-spectrum β-lactamase production
(American Society for Microbiology, 2002-12-01)
The relationships between porin deficiency, active efflux of fluoroquinolones, and extended-spectrum β-lactamase (ESBL) production were determined for 53 clinical isolates of Klebsiella pneumoniae. Thirty-two ESBL-positive ...
Artículo
Is reduced vancomycin susceptibility a factor associated with poor prognosis in MSSA bacteraemia?
(Oxford University Press, 2015)
Objectives: The known data about the influence of vancomycin MIC on Staphylococcus aureus bacteraemia are contradictory. Our objective was to study the possible impact of vancomycin MIC ≥1.5 mg/L on short- and medium-term ...
Artículo
Uptake and intracellular activity of moxifloxacin in human neutrophils and tissue-cultured epithelial cells
(American Society for Microbiology, 1999-02-15)
The penetration by moxifloxacin of human neutrophils (polymorphonuclear leukocytes [PMN]) and tissue-cultured epithelial cells (McCoy cells) was evaluated by a fluorometric assay. At extracellular concentrations of 5 ...
Artículo
Energy-dependent accumulation of fluoroquinolones in quinolone- resistant Klebsiella pneumoniae strains
(American Society for Microbiology, 1998-07-01)
The intracellular accumulation of norfloxacin and perloxacin in Klebsiella pneumoniae was evaluated. The roles of lipopolysaccharide, capsule, and outer membrane proteins were not important for the intrabacterial accumulation ...
Artículo
Zinc eluted from siliconized latex urinary catheters decreases OprD expression, causing carbapenem resistance in Pseudomonas aeruginosa
(American Society for Microbiology, 2003-07-01)
The activities of carbapenems against Pseudomonas aeruginosa decreased in the presence of siliconized latex urinary catheters (SLUCs). This effect was associated with the loss of OprD. The zinc that eluted from SLUCs is ...