Results 21 to 30 of about 60,277 (349)

An update on the synthesis and reactivity of spiro-fused β-lactams [PDF]

open access: yes, 2018
Beta-Lactam ring-containing compounds play a pivotal role in drug design and synthetic chemistry. Spirocyclic beta-lactams, representing an important beta-lactam subclass, have recently attracted considerable interest with respect to new synthetic ...
D'hooghe, Matthias, Dao Thi, Hang
core   +1 more source

The Beta-Lactam Resistome Expressed by Aerobic and Anaerobic Bacteria Isolated from Human Feces of Healthy Donors

open access: yesPharmaceuticals, 2021
Antibiotic resistance is a major health problem worldwide, causing more deaths than diabetes and cancer. The dissemination of vertical and horizontal antibiotic resistance genes has been conducted for a selection of pan-resistant bacteria.
Rosalino Vázquez-López   +8 more
doaj   +1 more source

Efflux pump, the masked side of beta-lactam resistance in Klebsiella pneumoniae clinical isolates. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: Beta-lactamase production and porin decrease are the well-recognized mechanisms of acquired beta-lactam resistance in Klebsiella pneumoniae isolates. However, such mechanisms proved to be absent in K.
Jean-Marie Pages   +6 more
doaj   +1 more source

Synthesis and reactivity of 4-(trifluoromethyl)azetidin-2-ones [PDF]

open access: yes, 2018
Because of the beneficial effect of a trifluoromethyl group on the biological properties of bioactive compounds on the one hand and the versatile synthetic potential of beta-lactams on the other hand, 4-CF3-beta-lactams comprises interesting entities for
D'hooghe, Matthias   +2 more
core   +1 more source

High Activity of N-Acetylcysteine in Combination with Beta-Lactams against Carbapenem-Resistant Klebsiella pneumoniae and Acinetobacter baumannii

open access: yesAntibiotics, 2022
Aim: The aim of the study was to evaluate the in vitro activity of N-acetylcysteine (NAC), alone or in combination with beta-lactams, against carbapenem-resistant Klebsiella pneumoniae (CR-Kp) and Acinetobacter baumannii (CR-Ab).
Massimiliano De Angelis   +9 more
doaj   +1 more source

Rhodium-catalysed hydroformylation of N-(2-propenyl)-β-lactams as a key step in the synthesis of functionalised N-[4-(2-oxoazetidin-1-yl)but-1-enyl]acetamides [PDF]

open access: yes, 2010
Biologically relevant functionalised N-[4-(2-oxoazetidin-1-yl)but-1-enyl]acetamides have been prepared in a two-step approach starting from N-(2-propenyl)-beta-lactams, involving initial rhodium-catalysed hydroformylation followed by subjection of the ...
D'hooghe, Matthias   +4 more
core   +2 more sources

A Study of Elevated Interleukin-8 (CXCL8) Detection of Leukocyte Migration Inhibitory Activity in Patients Allergic to Beta-Lactam Antibiotics

open access: yesAllergology International, 2011
Background: The leukocyte migration test (LMT) is effective in identifying the causative drug in drug allergies. Both leukocyte migration activating activity (LMAA) and leukocyte migration inhibitory activity (LMIA) are involved in the development of ...
Manabu Abe   +4 more
doaj   +1 more source

Oral beta-lactam step down in bacteremic E. coli urinary tract infections

open access: yesBMC Infectious Diseases, 2020
Background Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with ...
Stephan Saad   +3 more
doaj   +1 more source

CRISPRi-mediated characterization of novel anti-tuberculosis targets: Mycobacterial peptidoglycan modifications promote beta-lactam resistance and intracellular survival

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
The lack of effective therapeutics against emerging multi-drug resistant strains of Mycobacterium tuberculosis (Mtb) prompts the identification of novel anti-tuberculosis targets.
Cátia Silveiro   +10 more
doaj   +1 more source

SIAIP position paper: provocation challenge to antibiotics and non-steroidal anti-inflammatory drugs in children [PDF]

open access: yes, 2018
Drug hypersensitivity reactions (DHRs) in childhood are mainly caused by betalactam or non-betalactam antibiotics, and non-steroidal anti-inflammatory drugs (NSAIDs).
Arasi, Stefania   +19 more
core   +1 more source

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