Buscar
Mostrando ítems 1-10 de 109
Defining substrate specificity in the ctx-m family: The role of asp240 in ceftazidime hydrolysis
(American Society for Microbiology, 2018-06)
The natural diversification of CTX-M -lactamases led to the emergence of Asp240Gly variants in the clinic that confer reduced susceptibility to ceftazidime (CAZ). In this study, we compared the impact of this substitution ...
Detección del gen CTX-M 2 en cepas de Escherichia Coli productoras de Beta-Lactamasas de espectro extendido (BLEE) aisladas del Hospital Vicente Corral Moscoso; Cuenca-Ecuador
(Universidad de Guayaquil, 2015)
Introducción: Las betalactamasas de espectro extendido (BLEE), son enzimas que genotípicamente se caracterizan por conferir resistencia a penicilinas, cefalosporinas y monobactames. Las cepas que producen BLEE en su mayoría ...
Effect of calcineurin inhibitors on myotoxic activity of crotoxin and Bothrops asper phospholipase A2 myotoxins in vivo and in vitro
(2006-07)
Previous studies have shown that calcineurin activity plays a critical role in the myotoxic activity induced by crotoxin (CTX), a group II phospholipase A2 (PLA2) with neurotoxic and myotoxic actions. In order to address ...
Cloverleaf test (modified Hodge test) for detecting carbapenemase production in Klebsiella pneumoniae: be aware of false positive results
(Oxford Univ Press, 2010-02-01)
The aim of this study was to evaluate the presence of carbapenemases in a Klebsiella pneumoniae collection and the performance of the modified Hodge test (MHT) to correctly identify this phenotype.Twenty-eight K. pneumoniae ...
Correlation between salivary and serum markers of bone turnover in osteopenic rats
(American Academy of Periodontology, 2008-01)
Background: Previously, we measured bone alkaline phosphatase (b-ALP) and terminal C-telopeptide of collagen type I (CTX) in saliva. The present longitudinal experimental study sought to determine whether salivary ...
Os processos de significação na globalização: o papel da publicidade
(São Paulo, 2009)
Este texto traz a reflexão sobre o papel da publicidade na Era
Global, a partir das teorias da sociossemiótica e da semiótica das culturas
fundamentada nos trabalhos de Cidmar Teodoro Pais. O principal objetivo é ...
Multidrug-Resistant CTX-M and CMY-2 producing Escherichia coli Isolated from healthy household dogs from the great metropolitan area, Costa Rica
(Mary Ann Liebert, Inc., 2020)
Objective:This study aimed to determine the prevalence of fecal carriage of antibiotic-resistantEscherichia coliof healthy household dogs with an emphasis on extended-spectrumb-lactamases (ESBL), AmpC-typeb-lactamases ...