Results 41 to 50 of about 937,622 (274)

Synergistic Combinations of FDA-Approved Drugs with Ceftobiprole against Methicillin-Resistant Staphylococcus aureus

open access: yesMicrobiology Spectrum, 2023
New strategies are urgently needed to address the public health threat of antimicrobial resistance. Synergistic agent combinations provide one possible pathway toward addressing this need and are also of fundamental mechanistic interest.
Amar Deep Sharma, William G. Gutheil
doaj   +1 more source

A calorimetric study of β-sultams and β-lactams [PDF]

open access: yes
The hydrolytic degradation of a series of β-sultams and β-lactams was investigated using isothermal microcalorimetry (IMC), to determine kinetic and enthalpic data.
Naz, Summia
core   +3 more sources

FtsH Sensitizes Methicillin-Resistant Staphylococcus aureus to β-Lactam Antibiotics by Degrading YpfP, a Lipoteichoic Acid Synthesis Enzyme

open access: yesAntibiotics, 2021
In the Gram-positive pathogen Staphylococcus aureus, FtsH, a membrane-bound metalloprotease, plays a critical role in bacterial virulence and stress resistance.
Won-Sik Yeo   +6 more
doaj   +1 more source

The barrier function of the outer membrane ofPseudomonas maltophiliain the diffusion of saccharides and β-lactam antibiotics [PDF]

open access: yesFEMS Microbiology Letters, 1989
This paper reports that the efficiency of solute diffusion through the outer membrane of Pseudomonas maltophilia is roughly 3 to 5% of that of Escherichia coli. This is despite the fact that the outer membrane pore(s) is only a little smaller than that of E. coli. These results suggest that P. maltophilia has a low copy number of porin(s).
E, Yamazaki, J, Ishii, K, Sato, T, Nakae
openaire   +2 more sources

β-lactam antibiotic versus combined β-lactam antibiotics and single daily dosing regimens of aminoglycosides for treating serious infections: A meta-analysis

open access: yes, 2019
Background: Combining aminoglycosides with β-lactam antibiotics for treating serious infections has not been associated with reduced mortality in previous meta-analyses.
Roberts, Prof Jason   +8 more
core   +1 more source

Mutation of lipoprotein processing pathway gene lspA or inhibition of LspA activity by globomycin increases MRSA resistance to β-lactam antibiotics

open access: yesAntimicrobial Agents and Chemotherapy
Resistance to β-lactam antibiotics in methicillin-resistant Staphylococcus aureus is mediated by the mecA-encoded, β-lactam-resistant transpeptidase, penicillin-binding protein 2a (PBP2a), which is capable of crosslinking peptidoglycan in the presence of
Claire Fingleton   +4 more
doaj   +1 more source

Purine Nucleosides Interfere with c-di-AMP Levels and Act as Adjuvants To Re-Sensitize MRSA To β-Lactam Antibiotics

open access: yesmBio, 2023
The purine-derived signaling molecules c-di-AMP and (p)ppGpp control mecA/PBP2a-mediated β-lactam resistance in methicillin-resistant Staphylococcus aureus (MRSA) raise the possibility that purine availability can control antibiotic susceptibility ...
Aaron C. Nolan   +7 more
doaj   +1 more source

β-Lactam induction of ISEcp1B-mediated mobilization of the naturally occurringblaCTX-Mβ-lactamase gene ofKluyvera ascorbata [PDF]

open access: yesFEMS Microbiology Letters, 2008
ISEcp1B is an insertion element associated with the emerging expanded-spectrum beta-lactamase bla(CTX-M) genes in Enterobacteriaceae. Because ISEcp1B-bla(CTX-M)positive strains may be identified from humans and animals, the ability of this insertion sequence to mobilize the bla(CTX-M-2) gene was tested from its progenitor Kluyvera ascorbata to study ...
Nordmann, Patrice   +2 more
openaire   +3 more sources

Commonly prescribed β-lactam antibiotics induce C. trachomatis persistence/stress in culture at physiologically relevant concentrations [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology, 2014
Chlamydia trachomatis, the most common bacterial sexually transmitted disease agent worldwide, enters a viable, non-dividing and non-infectious state (historically termed persistence and more recently referred to as the chlamydial stress response) when exposed to penicillin G in culture.
Kintner, Jennifer   +4 more
openaire   +4 more sources

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