Vancomycin-resistant Enterococcus faecalis coisolated with vancomycin-resistant (VanA) Staphylococcus aureus was found to contain two plasmids, designated pAM830 (45 kb) and pAM831 (95 kb). pAM830, found to be conjugative and closely related to the Inc18 family of broad-host-range conjugative plasmids, encodes resistances to vancomycin (via a Tn1546-like element) and erythromycin; pAM831 encodes resistances to gentamicin, streptomycin, and erythromycin.
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http://dx.doi.org/10.1128/AAC.47.12.3954-3959.2003 | DOI Listing |
JAC Antimicrob Resist
February 2025
Department of Microbiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
Background: Antimicrobial resistance (AMR) is caused by the use and misuse of antibiotics. AMR is a global health concern, to which penicillin allergy (penA) labels appear to contribute. Patients who have penA labels are treated with non-penicillin antibiotics and receive more antibiotics when compared with patients without penA.
View Article and Find Full Text PDFFront Pharmacol
January 2025
Centre for Molecular Biosciences, Ulster University, Coleraine, United Kingdom.
The WHO has compiled a list of pathogens that urgently require new antibiotics in response to the rising reports of antibiotic resistance and a diminished supply of new antibiotics. At the top of this list is fluoroquinolone-resistant , fluoroquinolone-resistant spp. and vancomycin-resistant .
View Article and Find Full Text PDFACS Omega
January 2025
Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Arba Minch University, P.O. Box No. 21, Arba Minch 21, Ethiopia.
The present work focuses on a newly synthesized pyrazolo[3,4-]pyridine prepared by formal [3 + 3] cycloaddition using copper(II) acetylacetonate as the catalyst; efficient and effective mild reactions with high yields were obtained using this method. The synthesized compounds were identified by FT-IR, H and C NMR, and mass spectra (/) analyses. The compounds () were screened for several in vitro and in silico activities.
View Article and Find Full Text PDFSmall
January 2025
Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
Vancomycin (VAN) and daptomycin (DAP) are among the last-resort antibiotics for treating multidrug-resistant Gram-positive bacterial infections. They are administered intravenously (IV); however, ≈5 - 10% of the total IV dose is released in the gastrointestinal (GI) tract via biliary excretion, driving resistance emergence in commensal Enterococcus faecium (E. faecium) populations.
View Article and Find Full Text PDFCell Syst
January 2025
Duchossois Family Institute, University of Chicago, Chicago, IL 60637, USA; Department of Pathology, University of Chicago, Chicago, IL 60637, USA; Center for the Physics of Evolving Systems, University of Chicago, Chicago, IL 60637, USA. Electronic address:
The human gut microbiome contains many bacterial strains of the same species ("strain-level variants") that shape microbiome function. The tremendous scale and molecular resolution at which microbial communities are being interrogated motivates addressing how to describe strain-level variants. We introduce the "Spectral Tree"-an inferred tree of relatedness built from patterns of co-evolutionary constraint between greater than 7,000 diverse bacteria.
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