Results 211 to 220 of about 29,386 (262)
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Beta-lactamase inhibitor combinations
Medical Clinics of North America, 1995The beta-lactamase inhibitor combinations present a novel approach to the problem of beta-lactamase-induced resistance to antibiotics. These agents are derived from the generally safe beta-lactam class of antibiotics. They are all principally excreted through the kidneys and require dosage adjustment in the face of significant renal insufficiency. They
J W, Sensakovic, L G, Smith
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Newer Penicillins and Beta-Lactamase Inhibitors
Infectious Disease Clinics of North America, 1989Penicillins continue to be essential antibiotics for the treatment and prophylaxis of many infectious diseases. Recent advances have resulted in compounds with favorable new antimicrobial and pharmacologic properties. This article reviews the spectrum of activity, toxicity, pharmacokinetics, and clinical uses of the extended spectrum penicillins and ...
L M, Bush, J, Calmon, C C, Johnson
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Beta-Lactamase Inhibitors and the Inducibility of the Beta-Lactamase of Mycobacterium tuberculosis
American Review of Respiratory Disease, 1992Abstract Ten clinical isolates and the type strain (H37Rv) of Mycobacterium tuberculosis were shown to produce an intracellular β-lactamase. Crude enzyme preparations were extracted from acetone cell powders by grinding with zirconium beads in 0.133 M glycine with 1.0% Triton X-100.
Y, Zhang, V A, Steingrube, R J, Wallace
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Effect of beta-lactamase inhibitors on beta-lactamases from anaerobic bacteria
European Journal of Clinical Microbiology & Infectious Diseases, 1992Three beta-lactamase inhibitors in clinical use--clavulanic acid, sulbactam and tazobactam--were investigated for their activity on beta-lactamases from Bacteroides uniformis, Clostridium butyricum and Fusobacterium nucleatum. Purification of the beta-lactamases was carried out by anion-exchange chromatography, gel filtration and FPLC. The inactivation
M, Hedberg +3 more
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Presse medicale (Paris, France : 1983), 1997
BETA-LACTAMASE: The capacity to produce beta-lactamase, an enzyme which hydrolyses penicillin and cephalosporines, is the main source of bacterial resistance to beta-lactamines, thus the important contribution of beta-lactamase inhibitors (clavanulanic acid, sulbactam and tazobactam).Beta-lactamase inhibitors inactivate these enzymes and, in ...
O, Launay +3 more
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BETA-LACTAMASE: The capacity to produce beta-lactamase, an enzyme which hydrolyses penicillin and cephalosporines, is the main source of bacterial resistance to beta-lactamines, thus the important contribution of beta-lactamase inhibitors (clavanulanic acid, sulbactam and tazobactam).Beta-lactamase inhibitors inactivate these enzymes and, in ...
O, Launay +3 more
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Medicinal research reviews, 1984
In summary, Table XVI shows the inhibition profiles of representative beta-lactamases from each major class of Richmond and Sykes. Either resistance (R) or sensitivity (S) is given as a general guide to the type of compounds likely to inhibit each class.
S J, Cartwright, S G, Waley
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In summary, Table XVI shows the inhibition profiles of representative beta-lactamases from each major class of Richmond and Sykes. Either resistance (R) or sensitivity (S) is given as a general guide to the type of compounds likely to inhibit each class.
S J, Cartwright, S G, Waley
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Bacteriological Investigations with Beta-Lactamase Inhibitors
Zentralblatt für Bakteriologie, Mikrobiologie und Hygiene. 1. Abt. Originale. A, Medizinische Mikrobiologie, Infektionskrankheiten und Parasitologie, 1982MIC's of beta-lactamase producing strains of P. aeruginosa, E. coli, P. vulgaris, P. rettgeri, E. cloacae, K. pneumoniae, S. marcescens are determined against piperacillin and in the case of S. aureus against amoxycillin and penicillin G. All the strains studied were resistant to these antibiotics.
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Beta-lactamases and beta-lactamase inhibitors.
International journal of antimicrobial agents, 1999Penicillin, the first of the beta-lactam antibiotics, was introduced into medical practice in the 1940s. Since then, a large number of different beta-lactams, including penicillins, cephalosporins, monobactams, and carbapenems, have been developed, all of which are structurally related through the presence of a core beta-lactam ring. Resistance to beta-
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Nanomolar Inhibitors of AmpC β-Lactamase
Journal of the American Chemical Society, 2002beta-lactamases are the most widespread resistance mechanism to beta-lactam antibiotics, such as the penicillins and the cephalosporins. In an effort to combat these enzymes, a combination of stereoselective organic synthesis, enzymology, microbiology, and X-ray crystallography was used to design and evaluate new carboxyphenyl-glycylboronic acid ...
MORANDI, federica +6 more
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Drug intelligence & clinical pharmacy, 1985
Numerous beta-lactamase inhibitors have been developed to overcome the problems of bacterial resistance to beta-lactam antibiotics. One such agent, clavulanic acid, has been combined with amoxicillin, and the combination is effective against many amoxicillin-resistant organisms. Clinical studies have demonstrated the efficacy of amoxicillin/clavulanate
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Numerous beta-lactamase inhibitors have been developed to overcome the problems of bacterial resistance to beta-lactam antibiotics. One such agent, clavulanic acid, has been combined with amoxicillin, and the combination is effective against many amoxicillin-resistant organisms. Clinical studies have demonstrated the efficacy of amoxicillin/clavulanate
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