Results 21 to 30 of about 1,053,591 (371)

Effect of β-lactamase inhibitors on in vitro activity of β-lactam antibiotics against Burkholderia cepacia complex species [PDF]

open access: yes, 2016
Background: Bacteria belonging to the Burkholderia cepacia complex (Bcc) are an important cause of chronic respiratory tract infections in cystic fibrosis patients. Intrinsic resistance to a wide range of antimicrobial agents, including a variety of beta-
Coenye, Tom, Everaert, Annelien
core   +2 more sources

Beta-lactamase induction and cell wall metabolism in Gram-negative bacteria

open access: yesFrontiers in Microbiology, 2013
Production of beta-lactamases, the enzymes that degrade beta-lactam antibiotics, is the most widespread and threatening mechanism of antibiotic resistance.
Ximin eZeng, Jun eLin
doaj   +1 more source

Cefotaxime/sulbactam: clinical and pharmacological characteristics [PDF]

open access: yesКлиническая микробиология и антимикробная химиотерапия, 2019
The recently approved cefotaxime/sulbactam, combination of third-generation cephalosporin (cefotaxime) and beta-lactamase inhibitor (sulbactam), can combat resistance mechanisms associated with the production of serine beta-lactamases, including some ...
Ortenberg E.A., Golub A.V.
doaj   +1 more source

Extended-spectrum Beta-lactamase and AmpC beta-lactamases producing gram negative bacilli isolated from clinical specimens at International Clinical Laboratories, Addis Ababa, Ethiopia.

open access: yesPLoS ONE, 2020
BackgroundExtended spectrum Beta-lactamases (ESBLs) and AmpC beta-lactamases (AmpC) are the common enzymes produced by gram negative bacilli, which are their main mechanisms of resistance to all generations of cephalosporins.
Saba Gebremichael Tekele   +4 more
doaj   +1 more source

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

open access: yes, 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.   +10 more
core   +1 more source

Metallo-Beta-Lactamases: NDM

open access: yesJournal of Education, Health and Sport, 2019
New Delhi, an enzyme belonging to the Metallo-beta-lactamases and Carbapenemases group, is most commonly found in Klebsiella pneumoniae and Escherichia coli. It determines these bacteria resistance to the majority of known antibiotics.
Kamil Leis   +13 more
doaj   +3 more sources

Broad-spectrum β-lactamases among Enterobacteriaceae of animal origin: molecular aspects, mobility and impact on public health [PDF]

open access: yes, 2010
Broad-spectrum β-lactamase genes (coding for extended-spectrum β-lactamases (ESBLs) and AmpC β-lactamases) have been frequently demonstrated in the microbiota of food-producing animals. This may pose a human health hazard since these genes may be present
Butaye, Patrick   +7 more
core   +1 more source

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

open access: yesAntimicrobial 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   +4 more
openaire   +2 more sources

A Primer on AmpC Beta-Lactamases: Necessary Knowledge for an Increasingly Multidrug-Resistant World.

open access: yesClinical Infectious Diseases, 2019
Understanding the nuances of AmpC β-lactamase mediated resistance can be challenging - even for the infectious diseases specialist. AmpC resistance can be classified into three categories: (a) inducible chromosomal resistance that emerges in the setting ...
P. Tamma   +7 more
semanticscholar   +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]

open access: yes, 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   +11 more
core   +1 more source

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