IntroductionMoraxella catarrhalis is a gram negative, oxidase positive, cocci mainly causing upper and lowerrespiratory tract infections. The RND family efflux pumps lead to multidrug resistance in most ofthe negative bacteria. One of the well- known M. arcAB oprMsystem. objective this study was investigate antibiotic andto determine its dependence on pump. MethodsIn study, 283 different respir...

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Editorial The Emergence and spread of multiresistant strains of Pseu-domonas aeruginosa is increasing problem, because it is associated with high morbidity and mortality. P. aeruginosa has intrinsic resistance to a wide variety of antibiotics, including most...

In a university hospital, time-series analysis revealed a significant relationship between antibiotic (aminoglycoside, fluoroquinolone, and cefepime) use and incidence of MexXY-OprM-overproducing Pseudomonas aeruginosa. In vitro experiments confirm that such mutants were readily selected from both PAO1 and clinical strains when grown in the presence of these antibiotics.

Membrane proteins are essential in the exchange processes of cells. In spite of great breakthrough in soluble proteins studies, membrane proteins structures, functions and interactions are still a challenge because of the difficulties related to their hydrophobic properties. Most of the experiments are performed with detergent-solubilized membrane proteins. However widely used micellar systems ...

OBJECTIVES Although Pseudomonas aeruginosa from cystic fibrosis patients are well known for their antibiotic resistance, isolates that are highly susceptible to multiple drug classes have also been encountered. In this study, hypersusceptible P. aeruginosa isolates were analysed for changes in intrinsic resistance mechanisms to explain the observed phenotype. METHODS P. aeruginosa strains PA3...

Pseudomonas aeruginosa is an opportunistic, nosocomial pathogen for which antibiotic resistance and biofilm development is common. Quorum sensing communication is known to be a major controlling factor in virulence gene expression, biofilm development, antibiotic resistance factors, and specifically MexAB-OprM multi-drug efflux pump expression in P.aeruginosa. MexAB-OprM efflux pumps contribute...

BACKGROUND The presence of the A118G single nucleotide polymorphism in the OPRM1 gene as well as noxious stimulation might affect the requirements of remifentanil for patients undergoing ultrasonographic endoscopy under sedation-analgesia with propofol and remifentanil. Bispectral index (BIS) was used as a surrogate measure of effect. METHOD A total of 207 patients were screened for A118G and...