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Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study
Summary Background Gram-negative Enterobacteriaceae with resistance to carbapenem conferred by New Delhi metallo-β-lactamase 1 (NDM-1) are potentially a major global health problem. We investigatedExpand
Activities of NXL104 Combinations with Ceftazidime and Aztreonam against Carbapenemase-Producing Enterobacteriaceae
ABSTRACT Combinations of NXL104 with ceftazidime and aztreonam were tested against carbapenem-resistant members of the Enterobacteriaceae. Ceftazidime-NXL104 was active against strains with theExpand
Activity of aminoglycosides, including ACHN-490, against carbapenem-resistant Enterobacteriaceae isolates.
BACKGROUND the emergence of carbapenemases in Enterobacteriaceae is driving a search for therapeutic alternatives. We tested ACHN-490, a sisomicin derivative that evades all plasmid-mediatedExpand
Activity of MK-7655 combined with imipenem against Enterobacteriaceae and Pseudomonas aeruginosa.
OBJECTIVES MK-7655 is a novel inhibitor of class A and C β-lactamases. We investigated its potential to protect imipenem. METHODS Chequerboard MICs were determined by CLSI agar dilution: (i) forExpand
Carbapenem-resistant Escherichia coli and Klebsiella pneumoniae isolates from Turkey with OXA-48-like carbapenemases and outer membrane protein loss.
Treatment options are limited in infections caused by extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae, with carbapenems generally preferred. Disturbingly, however,Expand
Phylogenetic diversity of Escherichia coli strains producing NDM-type carbapenemases.
BACKGROUND The global accumulation of Escherichia coli with CTX-M extended-spectrum β-lactamases partly reflects the dissemination of clonal lineages, notably ST131 and ST405. More recently, E. coliExpand
What remains against carbapenem-resistant Enterobacteriaceae? Evaluation of chloramphenicol, ciprofloxacin, colistin, fosfomycin, minocycline, nitrofurantoin, temocillin and tigecycline.
Carbapenem-resistant Enterobacteriaceae present an increasing and diverse problem, including strains of multiple species with metallo-β-lactamases (IMP, NDM or VIM) and non-metallo (KPC and OXA-48)Expand
In vitro activity of ceftazidime+NXL104 against Pseudomonas aeruginosa and other non-fermenters.
BACKGROUND NXL104 potentiates ceftazidime and ceftaroline against Enterobacteriaceae with extended-spectrum, AmpC, KPC and OXA β-lactamases. We examined whether similar potentiation was obtainedExpand
Doripenem versus Pseudomonas aeruginosa In Vitro: Activity against Characterized Isolates, Mutants, and Transconjugants and Resistance Selection Potential
ABSTRACT Doripenem is a broad-spectrum parenteral carbapenem under clinical development in Japan and North America. Its activities against (i) Pseudomonas aeruginosa isolates with graded levels ofExpand
Activity of biapenem (RPX2003) combined with the boronate β-lactamase inhibitor RPX7009 against carbapenem-resistant Enterobacteriaceae.
OBJECTIVES The proliferation of carbapenemases in Enterobacteriaceae demands new therapies, with current interest centred on β-lactamase inhibitor combinations. RPX7009 is a new boron-based inhibitorExpand
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