Results 21 to 30 of about 57,530 (301)

Effect of pH on activities of novel beta-lactamases and beta-lactamase inhibitors against these beta-lactamases [PDF]

Antimicrobial Agents and Chemotherapy, 1995
The effects of acidic conditions on activities of seven beta-lactamases--TEM-1 (class A), KOXY (class A), IMP-1 (class B), AmpC (class C), MOX-1 (class C), OXA-5 (class D), and PSE-2 (class D)--and their inhibitors were measured. The enzymatic activities of KOXY, IMP-1, and MOX-1 at pH 5.8 were slightly lower than those at pH 7.5.
S, Ohsuka, Y, Arakawa, T, Horii, H, Ito, M, Ohta   +4 more
openaire   +2 more sources

Evaluation of the ESBL-coding plasmids transmissibility in E. coli isolated from ambulatory patient's urina [PDF]

, 2018
Representatives of the Enterobacteriaceae family are the main causative agents of urinary tract infections. Escherichia coli can exhibit resistance to [beta] -lactam antibiotics by synthesizing ESBL (extended spectrum [beta]-lactamases).
Катаева, Е. И.
core   +2 more sources

The reaction mechanism of metallo-beta-lactamases is tuned by the conformation of an active site mobile loop [PDF]

, 2018
Carbapenems are "last resort" β-lactam antibiotics used to treat serious and life-threatening health care-associated infections caused by multidrug-resistant Gram-negative bacteria.
Alzari, Pedro M., Bethel, Christopher R., Bonomo, Robert A., Giannini, Estefanía, Klinke, Sebastian, Llarrull, Leticia Irene, Mojica, María F., Otero, Lisandro Horacio, Palacios, Antonela Rocio, Taracila, Magdalena A., Vila, Alejandro Jose   +10 more
core   +1 more source

Prevalence of co-existence genes and clonal spread of ESBL-producing isolates causing hospital and community-acquired infections in Zenica-Doboj Canton, Bosnia and Herzegovina

Journal of Health Sciences, 2017
Introduction: Co-existence type of ESBL-producing isolates are serious problem in the public health world. Methods Antibiotic susceptibility was determined by disc diffusion and broth microdilution according to CLSI guidelines.
Amir Ibrahimagić, Selma Uzunović, Branka Bedenić   +2 more
doaj   +1 more source

Structural basis of metallo-β-lactamase, serine-β-lactamase and penicillin-binding protein inhibition by cyclic boronates

Nature Communications, 2016
Bacterial beta-lactamases are responsible for resistance to beta-lactams, the most important family of antibiotics. Here, the authors reveal cyclic boronate inhibitors that are active against both serine- and metallo-beta-lactamases and represent a ...
Jürgen Brem, Ricky Cain, Samuel Cahill, Michael A. McDonough, Ian J. Clifton, Juan-Carlos Jiménez-Castellanos, Matthew B. Avison, James Spencer, Colin W. G. Fishwick, Christopher J. Schofield   +9 more
doaj   +1 more source

Impact of amoxicillin-clavulanate followed by autologous fecal microbiota transplantation on fecal microbiome structure and metabolic potential [PDF]

, 2018
The spread of multidrug resistance among pathogenic organisms threatens the efficacy of antimicrobial treatment options. The human gut serves as a reservoir for many drug-resistant organisms and their resistance genes, and perturbation of the gut ...
Bulow, Christopher, Burnham, Carey-Ann D, CDC Prevention Epicenter Program,, Dantas, Gautam, Dubberke, Erik R, Hink, Tiffany, Jones, Susan, Kwon, Jennie H, Langdon, Amy, Patel, Sanket, Reske, Kimberly A, Seiler, Sondra, Sun, Xiaoqing, Wallace, Meghan   +13 more
core   +2 more sources

Molecular epidemiology and resistance patterns of blaOXA-48 Klebsiella pneumoniae and Escherichia coli: A nationwide multicenter study in Taiwan

Journal of Microbiology, Immunology and Infection, 2021
Background: We describe the molecular epidemiology and resistance patterns of blaOXA-48 Klebsiella pneumoniae and Escherichia coli in Taiwan. Methods: In this multicenter surveillance study from January 2012 to August 2015, the identified blaOXA-48 ...
Ching-Hsun Wang, Ling Ma, Li-Yueh Huang, Kuo-Ming Yeh, Jung-Chung Lin, L. Kristopher Siu, Feng-Yee Chang   +6 more
doaj   +1 more source

Simple disk-based method for detection of Klebsiella pneumoniae carbapenemase-type beta-lactamase by use of a boronic acid compound [PDF]

, 2008
A disk potentiation method using carbapenems as substrates and 3-aminophenyl boronic acid as an inhibitor was evaluated for the detection of Klebsiella pneumoniae carbapenemase (KPC)-type beta-lactamases. When combined with nonsusceptibility to ertapenem,
Doi, Y., Potoski, B. A., Adams-Haduch, J. M., Sidjabat, Hanna E., Pasculle, A. W., Paterson, David   +5 more
core   +1 more source

Severe bloodstream infection due to KPC-producer e coli in a renal transplant recipient treated with the double-carbapenem regimen and analysis of in vitro synergy testing a case report [PDF]

, 2016
Transplant recipients are at high risk of infections caused by multidrug resistant microorganisms. Due to the limited thera- peutic options, innovative antimicrobial combinations against carbape- nem-resistant Enterobacteriaceae causing severe infections
CIPOLLA, ALESSIA, D'ABRAMO, ALESSANDRA, DE ANGELIS, Massimiliano, Favaro, Marco, Ferretti, Giancarlo, GIZZI, FRANCESCA, IANNETTA, MARCO, MASCELLINO, Maria Teresa, MASTROIANNI, Claudio Maria, OLIVA, ALESSANDRA, RUSSO, Gianluca, VULLO, Vincenzo   +11 more
core   +1 more source

High potency of melaleuca alternifolia essential oil against multi-drug resistant gram-negative bacteria and methicillin-resistant staphylococcus aureus [PDF]

, 2018
Purpose: Herein, an extended investigation of Tea tree oil (TTO) against a number of multi-drug resistant (MDR) microorganisms in liquid and vapor phases is reported.
Božović, Mijat, Costantini, Silvia, De Angelis, Massimiliano, Garzoli, Stefania, Mascellino, Maria Teresa, Oliva, Alessandra, Ragno, Rino, Vullo, Vincenzo   +7 more
core   +1 more source