Results 1 to 10 of about 597,070 (286)

Exploiting the aggregation propensity of beta-lactamases to design inhibitors that induce enzyme misfolding [PDF]

open access: yesNature Communications, 2023
There is an arms race between beta-lactam antibiotics development and co-evolving beta-lactamases, which provide resistance by breaking down beta-lactam rings.
Ladan Khodaparast   +13 more
doaj   +2 more sources

An Extended Reservoir of Class-D Beta-Lactamases in Non-Clinical Bacterial Strains [PDF]

open access: yesMicrobiology Spectrum, 2022
Bacterial genes coding for antibiotic resistance represent a major issue in the fight against bacterial pathogens. Among those, genes encoding beta-lactamases target penicillin and related compounds such as carbapenems, which are critical for human ...
Valérian Lupo   +6 more
doaj   +2 more sources

Extended-Spectrum Beta-Lactamases [PDF]

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, 2006
The definition of extended-spectrum beta-lactamases (ESBLs) has expanded rapidly, in terms of both the number and the variety of enzymes. Bacteria bearing plasmidic ESBLs are spreading widely throughout the world.
Kevin R Forward
doaj   +2 more sources

Docking Study for New 7-Aminocephalosporinic Acid Derivatives as Potential Inhibitors for β-Lactamases [PDF]

open access: yesالمجلة العراقية للصيدلة, 2023
Background: Antibiotics with β-Lactam rings (β-Lactams), since they were discovered, have enhanced the typical treatment for bacterial infections.
Ahmed A. Saleh, Ahmed A. J. Mahmood
doaj   +1 more source

Antimicrobial resistance of gram-negative pathogens isolated from hospitalized patients in Rostov region [PDF]

open access: yesКлиническая микробиология и антимикробная химиотерапия, 2020
Objective. To evaluate resistance rates to carbapenems and III–IV generation cephalosporins among gramnegative bacteria, including production of carbapenemases and extended-spectrum beta-lactamases (ESBL). Materials and Methods.
Kutsevalova O.Yu.   +4 more
doaj   +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

Phenotypic Characterization of Extended-Spectrum Beta-Lactamases and Metallo-Beta-Lactamase of Multi Drug Resistant Acinetobacter baumannii Causing Nosocomial Infections in Erbil City

open access: yesAl-Mustansiriyah Journal of Science, 2020
Background: Resistance to broad‑spectrum beta‑lactams, mediated by extended‑spectrum beta‑lactamases, and metallo‑beta‑lactamase enzymes, is an increasing problem worldwide.
Sakar Bakr Smail, Kamal I. AL-OTRACHI
doaj   +1 more source

Бета-лактамази ентеробактерій: загальна характеристика, механізми та регіональні особливості розповсюдження

open access: yesAnnals of Mechnikov's Institute, 2022
The problem of the formation and spread of resistance to β-lactam antibiotics in clinically significant types of microorganisms is extremely important, since β-lactams traditionally form the basis of the treatment of bacterial infections.
Olena Peretyatko   +4 more
doaj   +1 more source

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