نتایج جستجو برای: mexxy
تعداد نتایج: 106 فیلتر نتایج به سال:
OBJECTIVES Previous studies have demonstrated that a combination of levofloxacin with imipenem could prevent the emergence of resistance during the treatment of susceptible Pseudomonas aeruginosa isolates in a two-compartment pharmacodynamic model of infection. In this study, the efficacy of levofloxacin/imipenem was further evaluated against a panel of characterized P. aeruginosa strains that ...
Introduction: Pseudomonas aeruginosa is one of the most important infectious agents in humans, which is difficult to control in hospitals due to its resistance to various antibiotics. Efflux pump systems play an important role in the drug resistance of this bacterium to a variety of antibiotics. This study aimed to determine the antimicrobial synergistic effect of silver nanoparticles and the a...
The resistance-nodulation-division (RND) family multidrug efflux system MexXY-OprM is a major determinant of aminoglycoside resistance in Pseudomonas aeruginosa, although the details of aminoglycoside recognition and export by MexY, the substrate-binding RND component of this efflux system, have not been elucidated. To identify regions/residues of MexY important for aminoglycoside resistance, p...
It is generally assumed that the acquisition of antibiotic resistance is associated with a fitness cost. We have shown that overexpression of the MexEF-OprN efflux pump does not decrease the fitness of a resistant Pseudomonas aeruginosa strain compared to its wild-type counterpart. This lack of fitness cost was associated with a metabolic rewiring that includes increased expression of the anaer...
در بیماران مبتلابه سوختگی،عفونت خصوصا با سودوموناس آئروژینوزا(p.a)نقش بسیار مهمی در به خطر انداختن سلامتی این افراد دارد.بعلاوه آلودگی با این باکتریها در بیماران مبتلا به سیستیک فیبروزیس (cystic fibrosis;cf)نیز از اهمیت خاصی برخوردار است زیرا در افزایش روند پیشرفت بیماری ومیزان مرگ در این گروه بیماران موثر است.این در حالی است که سویه های(p.a)بطور ذاتی نسبت به بسیاری از آنتی بیوتیکها ومواد ضدعفو...
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