β-lactamase
Clinical Isolates of Staphylococcus aureus Show Variation in β Lactamase Production and Are More Susceptible to Antibiotics Conjugated with β Lactamase Inhibitors
... to β -Lactamases is achieved by the conjugation of β - Lactam antibiotics with β -Lactamase inhibitors such as clavulanic acid, sulbactam and tazobactam, which have a high affinity for and ...
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BIOLOGICAL EVALUATION OF AROMATIC COMPOUNDS AS β-LACTAMASE INHIBITORS
... Michaelis-Menten constant constitutes the starting points for determining the inhibition and wether the attack of the serine residue in the enzyme is on the carbonyl gorup in the chalcone. The substituents on phenyl ...
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Aminoglycocides as An Alternative Antibiotic Therapy Against Urinary Tract Infection in Children due to Extended-Spectrum Β-Lactamase (ESBL) Producing Escherichia Coli in Carbapenem Trends
... Minimum inhibitory concentrations (MICs) are described as the minimum con- centration of an antimicrobial that will inhibit the growth of aa bacterium or bacte- ria after overnight incubation. MICs are commonly used to ...
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Frequency of AmpC β-lactamase Resistance in Escherichia coli Isolates from Urinary Tract Infections in Gorgan, Iran
... beta lactamase resistance in Escherichia Coli were 1/3% and 5/7% ...AmpC β-lactamases ...Ampc β-lactamase resistance in Kerman (39/3 % ) ...beta lactamase resistance in ...beta ...
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Molecular Characteristics of Extended Spectrum β Lactamases in Escherichia coli and Klebsiella pneumoniae and the Prevalence of qnr in Extended Spectrum β Lactamase Isolates in a Tertiary Care Hospital in Korea
... Extended-spectrum β -lactamase (ESBL) producers are resistant to penicillins, narrow- and extended-spectrum cephalosporins, and aztreonam. These organisms are also frequently resistant to aminoglycosides, ...
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MOLECULAR CHARACTERIZATION OF PSEUDOMONAS AERUGINOSA ISOLATES RECOVERED FROM HUMAN PATIENTS IN HIMACHAL PRADESH (INDIA) FOR SELECTIVE GENES: EXTENDED SPECTRUM β LACTAMASE (ESBL), AMPICILLIN CLASS C (AMPC) AND METALLO β LACTAMASE (MBL) GENES
... β-lactamase inhibitors such as clavulanic acid, tazobactam, sulbactam inhibit ESBLs. However, AmpC producers show resistance to clavulanic acid. AmpC producing organisms may act as a hidden reservoir for ...
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In Vitro Comparative Efficacy of Carbapenems and β-Lactam β-Lactamase Inhibitor Combinations Against Multi Drug Resistant Gram Negative Bacilli
... and β -lactam β -lactamase inhibitor combinations (piperacillin / tazobactam and cefoperazone / sulbactam) against MDR Gram- negative bacilli in order to find out the effective- ness of these agents ...
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Prevalence of methicillin resistant Staphylococcus aureus, multidrug resistant and extended spectrum β-lactamase producing gram negative bacilli causing wound infections at a tertiary care hospital of Nepal
... spectrum β - lactamase (ESBL) producing En- terobacteriaceae are also in frontline of wound ...hydrolyzing β - lactamase (carba- penemases) conferred resistance to the newer β- lactam ...
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STABILITY AND ANALYSIS OF MEROPENEM AND β LACTAMASE INHIBITORS IN INJECTABLE PREPARATIONS
... carbapenem, β-lactam ...irreversible β – lactamase inhibitor to expand the activity of Meropenem against resistant ...irreversible β – lactamase ...
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Extended-spectrum β-lactamase, plasmid-mediated AmpC β-lactamase, fluoroquinolone resistance, and decreased susceptibility to carbapenems in Enterobacteriaceae: fecal carriage rates and associated risk factors in the community of Northern Cyprus
... The isolates that grew in ERT plates were evaluated by disc diffusion test using ERT (10 μg), MEM (10 μg) and IMP (10 μg) discs. Inhibition zones of ≤18 mm for ERT disc; and ≤ 19 mm for IMP and MEM discs indicated re- ...
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MOLECULAR DETECTION OF β LACTAMASE GENE [SHV] IN KLEBSIELLA PNEUMONIAE
... ABSTRACT: Klebsiella pneumoniae is a significant pathogen for nosocomial infections and quickly becomes the most prevalent beta- lactamases produced that are resistant to several antimicrobials. To comprehend deeper the ...
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Antimicrobial Susceptibility of Klebsiella pneumoniae and Escherichia coli with Extended-Spectrum β-lactamase associated Genes in Hospital Tengku Ampuan Afzan, Kuantan, Pahang
... 90% of the total ESBL-positive isolates (Table 3). This finding is consistent with the known geographic distribution of CTX-M-type ESBL in the Asia-Pacific region, 97% in China, 95.4% in India, 93.1% in Malaysia, 87.1% ...
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Rapid Detection of Extended Spectrum β Lactamase Producing Enterobacteriaceae
... Strain collection. A total of 255 strains were used to evaluate the perfor- mance of the ESBL NDP (Nordmann/Dortet/Poirel) test. They were from various clinical origins (blood culture, urine, sputum, etc.) and of world- ...
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Cyclic Boronates Inhibit All Classes of β-Lactamase
... Cyclic boronate 2 potentiated the activity of all four classes of  -lactam against Gram-negative clinical isolates (Table 3). Coadministration of cyclic boronate 2 along- side the clinically used SBL inhibitors ...
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Extended Spectrum β Lactamase Producing Enterobacteriaceae in Yaounde, Cameroon
... The extracts’ ability to hydrolyze  -lactam antibiotics (amoxicillin, amoxicillin- clavulanate, piperacillin, cefazolin, cefoxitin, ceftriaxone, cefotaxin, ceftazidime, aztreonam, and imipenem) was evaluated by a ...
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Extended Spectrum β Lactamase, AmpC, and Carbapenemase Issues
... Carbapenemases belong to molecular classes A, B, and D. The class A enzymes (Bush group 2f) are inhibited to various degrees by clavulanate and usually hydrolyze penicillins or cephalosporins more efficiently than ...
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Detection of Metallo β lactamase in gram negative bacilli
... Three different phenotypic methods were used to confirm the MBL production: Ertapenem ETP-EDTA ETP EDTA combined disc test, EDTA disc potentiation using Ceftazidime and Modified Hodge Te[r] ...
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Novel β-Lactamase blaARL in Staphylococcus arlettae
... proteins containing typical  -lactamase motifs appear to be present in many different Staphylococcus species. They lack the antirepressor blaR1 and repressor blaI genes, and their role in  -lactam resistance is ...
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Reactivity of β lactams and phosphonamidates and reactions with β lactamase
... Pure &Apple Chem , Vol 67, No 5, pp 711 717,1995 Printed in Great Britain CD 1995 IUPAC Reactivity of p lactams and phosphonamidates and reactions with P lactamase M I Page, A P Laws, M J Slam and J R[.] ...
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Induction of β-Lactamase Activity and Decreased β-Lactam Susceptibility by CO2 in Clinical Bacterial Isolates
... Nucleotide sequencing and phylogenetic analysis. All DNA amplicons were sequenced using four-dye fluorescent dideoxy labeling methods at the University of Florida Interdisciplinary Center for Biotechnology Research. ...
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