Results 11 to 20 of about 740,410 (298)

Spherical and rod shaped protoplasts from β-lactam antibiotic treated cultures of Bacillus subtilis [PDF]

open access: yesFEMS Microbiology Letters, 1988
Addition of β-lactams to exponentially growing cultures of an autolytically deficient Bacillus subtilis metc3 lyt-2 strain FJ6 caused increase in optical density to stop after 1 h when it had about doubled, and thereafter to remain constant for at least 6 h.
G. Wright, H.J. Rogers
openaire   +1 more source

Initiation of murein biosynthesis inEscherichia colicells treated with β-lactam antibiotics [PDF]

open access: yesFEMS Microbiology Letters, 1987
The study of the synthesis and accumulation of murein in cells initiating growth in the presence of β-lactam antibiotics indicated: (i) Murein rearrangement contributes substantially to cell enlargement during the first doubling in cell mass; (ii) Penicillin-binding protein 2 has the potential capability to synthesize most, if not all, the new murein ...
Antonio G. Pisabarro   +3 more
openaire   +1 more source

NMR spectrometric assay for determining enzymatic hydrolysis of β-lactam antibiotics with bacteria in aqueous solution [PDF]

open access: yesFEMS Microbiology Letters, 1984
An application of a nuclear magnetic resonance (NMR) spectrometer for the measurement of β-lactamase activity in clinical material containing bacteria is presented. By means of proton (1H)-NMR, it was easy to measure quantitatively β-lactamase activity in human bacteriuria, without performing any such pretreatment as isolation of bacteria or extraction
Koji O'hara, Yoko Shiomi, Megumi Kono
openaire   +1 more source

Novel Cassette Assay To Quantify the Outer Membrane Permeability of Five β-Lactams Simultaneously in Carbapenem-Resistant Klebsiella pneumoniae and Enterobacter cloacae

open access: yesmBio, 2020
Poor penetration through the outer membrane (OM) of Gram-negative bacteria is a major barrier of antibiotic development. While β-lactam antibiotics are commonly used against Klebsiella pneumoniae and Enterobacter cloacae, there are limited data on OM ...
Tae Hwan Kim   +19 more
doaj   +1 more source

β-lactam Resistance in Pseudomonas aeruginosa: Current Status, Future Prospects

open access: yesPathogens, 2021
Pseudomonas aeruginosa is a major opportunistic pathogen, causing a wide range of acute and chronic infections. β-lactam antibiotics including penicillins, carbapenems, monobactams, and cephalosporins play a key role in the treatment of P.
Karl A. Glen, Iain L. Lamont
doaj   +1 more source

Residues of tetracyclines and β-lactams antibiotics induce carbonylation of chicken breast [version 1; peer review: 2 approved]

open access: yesF1000Research, 2021
Background: Worldwide, chicken meat is widely consumed due to its low cost, high nutritional value and non-interference with religious or cultural beliefs.
Erika Rodríguez Cavallo   +3 more
doaj   +1 more source

Bacterial temporal dynamics enable optimal design of antibiotic treatment. [PDF]

open access: yesPLoS Computational Biology, 2015
There is a critical need to better use existing antibiotics due to the urgent threat of antibiotic resistant bacteria coupled with the reduced effort in developing new antibiotics.
Hannah R Meredith   +3 more
doaj   +1 more source

Multi-Dimensional Elimination of β-Lactams in the Rural Wetland: Molecule Design and Screening for More Antibacterial and Degradable Substitutes

open access: yesMolecules, 2022
Restricted economic conditions and limited sewage treatment facilities in rural areas lead to the discharge of small-scale breeding wastewater containing higher values of residual beta-lactam antibiotics (β-lactams), which seriously threatens the aquatic
Shuhai Sun   +3 more
doaj   +1 more source

Remarkable Iodine-Catalyzed Synthesis of Novel Pyrrole- Bearing N-Polyaromatic β-Lactams

open access: yesMolecules, 2010
Because of their interesting biological properties various methods for the synthesis of substituted pyrroles are described in the literature. However, synthesis of pyrroles fused with a β-lactam ring has not been reported.
Bimal K. Banik   +4 more
doaj   +1 more source

High Prevalence of blaOXA-2 and blaOXA-10 Genes in the β-Lactam-Resistant Clinical Isolates of Pseudomonas aeruginosa [PDF]

open access: yesResearch in Molecular Medicine, 2022
Background: Increased resistance to β-lactams is one of the most important considerations about Pseudomonas aeruginosa. This study aimed to investigate the prevalence of blaOXA-2 and blaOXA-10 genes in β-lactam-resistant P. aeruginosa.
Fatemeh Bazari Jamkhaneh   +2 more
doaj  

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