نتایج جستجو برای: pbp2a

تعداد نتایج: 180  

2015
Birgit Strommenger Franziska Layer Ingo Klare Guido Werner

Ceftaroline is a new cephalosporin active against Methicillin-resistant Staphylococcus aureus (MRSA). Based on a representative collection of clinical S. aureus isolates from Germany, supplemented with isolates of clonal lineages ST228 and ST239, we demonstrate the in-vitro susceptibility towards ceftaroline prior to its introduction into clinical use for a total of 219 isolates. Susceptibility...

2015
Patrick R Gonzales Mitchell W Pesesky Renee Bouley Anna Ballard Brent A Biddy Mark A Suckow William R Wolter Valerie A Schroeder Carey-Ann D Burnham Shahriar Mobashery Mayland Chang Gautam Dantas

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most prevalent multidrug-resistant pathogens worldwide, exhibiting increasing resistance to the latest antibiotic therapies. Here we show that the triple β-lactam combination meropenem-piperacillin-tazobactam (ME/PI/TZ) acts synergistically and is bactericidal against MRSA subspecies N315 and 72 other clinical MRSA isolates in vit...

2006
Giustina Vitale Serafino Mansueto Jean-Marc Rolain Didier Raoult

BORSA initially described nonheteroresistant strains of S. aureus with oxacillin MIC <2 mg/L, which produce ample β-lactamases and are rendered fully susceptible to PRP by β-lactamase-inhibitors (4,6). Subsequent BORSA strains described have had higher oxacillin MICs (4–8 mg/L) (4). The proportion of BORSA among clinical isolates of S. aureus varies (1.4%–12.5%) but is usually ?5% (4,10). A BOR...

2012
John R. Middleton

INTRODUCTION Penicillin and other β-lactam antimicrobials act by binding to a transpeptidase involved in cell wall peptidoglycan synthesis disrupting the bacterial cell wall resulting in death of the bacterium. One mechanism by which bacteria become resistant to β-lactam antimicrobials is through the production of enzymes such as β-lactamase that destroy the antimicrobial’s β-lactam ring render...

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