Results 21 to 30 of about 49,413 (255)

The KPC type beta-lactamases: new enzymes that confer resistance to carbapenems in Gram-negative bacilli.

Folia Histochemica et Cytobiologica, 2010
Antimicrobial resistance due to the continuous selective pressure from widespread use of antimicrobials in humans, animals and agriculture has been a growing problem for last decades. KPC beta-lactamases hydrolyzed beta-lactams of all classes. Especially,
Piotr Wieczorek, Jadwiga Jaworowska, Alina Ostas, Paweł Sacha, Dominika Ojdana, Jerzy Ratajczak, Elzbieta Tryniszewska   +6 more
doaj   +1 more source

Transcriptomic data for analyzing global gene expression patterns in Methicillin-resistance Staphylococcus aureus in response to spermine and oxacillin stress

Data in Brief, 2018
Methicillin-resistant Staphylococcus aureus (MRSA) is a rapidly emerging bacteria causing infection, which has developed resistance to most of the beta-lactam antibiotics because of newly acquired low-affinity penicillin binding protein (PBP2a), which ...
Shrikant Pawar, Xiangyu Yao, ChungDar Lu
doaj   +1 more source

Impact of Beta-Lactam Target Attainment on Resistance Development in Patients with Gram-Negative Infections

Antibiotics, 2023
Background: The objective was to identify associations between beta-lactam pharmacokinetic/pharmacodynamic (PK/PD) targets and Gram-negative bacteria resistance emergence in patients. Methods: Retrospective data were collected between 2016 to 2019 at the
Nicole F. Maranchick, Jessica Webber, Mohammad H. Alshaer, Timothy W. Felton, Charles A. Peloquin   +4 more
doaj   +1 more source

Beta–Lactam Drug Resistance Pattern In Staphylococcus Aureus Isolates: A Review

Eurasian Journal of Science and Engineering, 2023
Methicillin Resistance Staphylococcus aureus (MRSA) is a serious human disease also considered as a chronological developing zoonotic pathogen of common health and in term of veterinary concern.
Kovan Dilawer Issa, Mohammed Dlshad Muhsin   +1 more
doaj   +1 more source

Beta-Lactam Resistance

Revista de Gestão Social e Ambiental
Objective: Investigate beta-lactam resistance in order to identify the associated factors, the main beta-lactam resistant microorganisms and their complications.   Theoretical Framework: Beta-lactam resistance is a worldwide health problem, consisting of the inability to respond to the action of antibiotics.
Kerly Monserrath Pinos Larrea, Jacinto Eugenio Pérez Ramírez, Marco Vinicio Urgilés Rivas, Gustavo Adolfo Espinoza Palomeque, Juan Sebastián Urgilés Beltrán, Félix Miguel Sacoto Maldonado   +5 more
openaire   +1 more source

Beta‐lactam antibiotics: from antibiosis to resistance and bacteriology [PDF]

APMIS, 2009
Kong K‐F, Schneper L, Mathee K. Beta‐lactam antibiotics: from antibiosis to resistance and bacteriology. APMIS 2010; 118: 1–36.This review focuses on the era of antibiosis that led to a better understanding of bacterial morphology, in particular the cell wall component peptidoglycan. This is an effort to take readers on a tour de force from the concept
Kong, Kok-Fai, Schneper, Lisa, Mathee, Kalai   +2 more
openaire   +2 more sources

ftsI mutations versus beta-lactamase (blaTEM) production in beta-lactam resistance of Haemophilus influenzae: results from an university hospital in Istanbul

Journal of Global Antimicrobial Resistance
AIM: To determine in vitro susceptibilities of H. influenzae strains and to reveal the beta-lactam resistance mechanisms involved in those resistant to beta-lactams in our center. METHODS: Antibiotic susceptibilities of 122 H. influenzae isolated in 2022
Meltem Sarı Küçükerol, Burak Aksu, Ufuk Hasdemir   +2 more
doaj   +1 more source

The Relationship between Antimicrobial Use and Antimicrobial Resistance in Europe

Emerging Infectious Diseases, 2002
In Europe, antimicrobial resistance has been monitored since 1998 by the European Antimicrobial Resistance Surveillance System (EARSS). We examined the relationship between penicillin nonsusceptibility of invasive isolates of Streptococcus pneumoniae (an
Stef L.A.M. Bronzwaer, Otto Cars, Udo Buchholz, Sigvard Mölstad, Wim Goettsch, Irene K. Veldhuijzen, Jacob L. Kool, Marc J.W. Sprenger, John E. Degener   +8 more
doaj   +1 more source

Beta-lactam-specific resistant mutants of Staphylococcus aureus [PDF]

Antimicrobial Agents and Chemotherapy, 1986
In an approach to understanding the origin of methicillin resistance in clinical isolates of staphylococci, a series of Staphylococcus aureus mutants resistant to various beta-lactam antibiotics were isolated in the laboratory by antibiotic selection. Mutants with low- and intermediate-level resistance showed considerable specificity for the particular
TONIN, ENRICO ANGELO, TOMASZ A.
openaire   +3 more sources

A Circular and Tacticity‐Independent Crystalline Mono‐Substituted Nylon‐6 Platform: Unexpected Large Positional Effects on Crystallizability and Performance

Angewandte Chemie, EarlyView.
Methyl substitution positions on the nylon‐6 backbone markedly affect crystallizability, thermomechanical properties, and recyclability of the resulting atactic nylon‐6 variants. While γ‐methyl substitution gives an amorphous nylon, all other four methyl‐substitution positions (α, β, δ, and ε) afford, unexpectedly, crystalline nylons, showing tacticity‐
Jun‐Jie Tian, Jiyun Nam, Lili Wang, Andrea L. Baer, Ruirui Li, Maëlle T. Gace, Wei‐Feng Zheng, Clarissa Lincoln, Nicholas A. Rorrer, Eugene Y.‐X. Chen   +9 more
wiley   +2 more sources