Results 21 to 30 of about 36,552 (249)
High Prevalence of blaOXA-2 and blaOXA-10 Genes in the β-Lactam-Resistant Clinical Isolates of Pseudomonas aeruginosa [PDF]
Research 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
MicrobiologyOpen, 2020 Methicillin‐resistant Staphylococcus aureus (MRSA) is resistant to most β‐lactams due to the expression of an extra penicillin‐binding protein, PBP2a, with low β‐lactam affinity.
Marte Ekeland Fergestad +5 more
doaj +1 more source
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2021 In this work, the stereospecific synthesis of optically active cis β-lactams under diverse microwave-induced conditions using diverse solvents was reported.
Aparna Das +2 more
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Salicylate decreases production of AmpC type β-lactamases and increases susceptibility to β-lactams in aMorganella morganiiclinical isolate [PDF]
FEMS Microbiology Letters, 2004 The effect of salicylate, a marRAB inducer, on the resistance to β-lactams was characterized in an AmpC β-lactamase hyperproducer Morganella morganii clinical isolate (the M1 strain). Results were compared with those of the effect of salicylate in a wild-type M. morganii strain.
MarÃa M. TavÃo +6 more
openaire +1 more source
Evaluation of Metallo-β-Lactamase Susceptibility Testing in a Physiologic Medium
Microbiology Spectrum, 2021 Research in identifying alternative growth media that better mimic host conditions is gaining ground. Relative to nutrient-rich Mueller-Hinton broth (MHB), data on the influence of physiologic or host-mimicking media on metallo-β-lactamase (MBL ...
Tomefa E. Asempa +4 more
doaj +1 more source
Cell Reports, 2019 Summary: Whereas the primary actions of β-lactams are well characterized, their downstream effects are less well understood. Although their targets are extracellular, β-lactams stimulate respiration in Escherichia coli leading to increased intracellular ...
Loïc Léger +5 more
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β-Lactam induction of colanic acid gene expression inEscherichia coli [PDF]
FEMS Microbiology Letters, 2003 An unexpected observation led us to examine the relationship between beta-lactam exposure and synthesis of colonic acid capsular polysaccharide in Escherichia coli. Strains containing a cps-lacZ transcriptional fusion were challenged with antibiotics having various modes of action, and gene expression was detected by a disk-diffusion assay and in broth
Frances C, Sailer +2 more
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Historical Review of the Penicillin and Related Compounds (β – Lactams)
Al-Mustansiriyah Journal of Pharmaceutical Sciences, 2018 In spite of the old age of beta lactam, they continue to provide good health and preventing human diseases by virtue of industrial production and discoveries of small new beta-lactam group of secondary metabolite.
Luma Salman Abd
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Involvement of O8-antigen in altering β-lactam antibiotic susceptibilities inEscherichia coli [PDF]
FEMS Microbiology Letters, 2008 In spite of being dispensable, O-antigens are believed to facilitate various cellular processes and alter antibiotic sensitivities. Escherichia coli K-12 (CS109) strains are lacking in O-antigens and are reported to be sensitive to antibiotics. To our surprise, E. coli 2443 (expressing O8-antigen) manifested two- to fourfold higher sensitivities toward
Sujoy K, Sarkar, Anindya S, Ghosh
openaire +2 more sources
Acta Pharmaceutica Sinica B, 2019 As d-amino acids play important roles in the physiological metabolism of bacteria, combination of d-amino acids with antibiotics may provide synergistic antibacterial activity.
Qing Wang +12 more
doaj +1 more source