968 results found
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Quantifying antibiotic impact on within-patient dynamics of extended-spectrum beta-lactamase resistance

    Rene Niehus et al.
    A data-driven within-host model reveals that different antibiotics are associated with divergent effects on antibiotic resistance carriage and abundance in hospitalised patients, with important implications for antibiotic stewardship.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    The distribution of antibiotic use and its association with antibiotic resistance

    Scott W Olesen et al.
    Population-level antibiotic resistance correlates with the breadth of antibiotic use, that is, the proportion of people taking an antibiotic, better than with intensity of use the amount of use among users.
    1. Evolutionary Biology

    Rapid decline of bacterial drug-resistance in an antibiotic-free environment through phenotypic reversion

    Anett Dunai et al.
    Drug-resistance declines in the laboratory in an antibiotic stress-free environment, indicating that restricting antimicrobial usage in the clinics could be a useful policy.
    1. Evolutionary Biology

    An adjunctive therapy administered with an antibiotic prevents enrichment of antibiotic-resistant clones of a colonizing opportunistic pathogen

    Valerie J Morley et al.
    Cholestyramine, an FDA-approved bile acid sequestrant, can be repurposed to inactivate the antibiotic daptomycin in the gut, which prevents the emergence of transmissible antibiotic resistance in gastrointestinal Enterococcus faecium populations.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Inter-species population dynamics enhance microbial horizontal gene transfer and spread of antibiotic resistance

    Robert M Cooper et al.
    Killing their neighbors allows bacteria to steal genes, including antibiotic resistance genes, which we observed under a microscope, quantified, modeled, and predicted potentially guiding strategies to combat it.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Ribosomal mutations promote the evolution of antibiotic resistance in a multidrug environment

    James E Gomez et al.
    Mutations in several components of a bacterial ribosome are shown to broadly decrease antibiotic and stress sensitivity, and readily accessible reversion mutations allow these ribosomal mutations to serve as stepping stones to high level antibiotic resistance.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Evolutionary pathways to antibiotic resistance are dependent upon environmental structure and bacterial lifestyle

    Alfonso Santos-Lopez et al.
    Bacteria growing in biofilms evolve antimicrobial resistance via different pathways and generate greater genetic diversity than well-mixed populations, selecting fitter but less resistant genotypes.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Delayed antibiotic exposure induces population collapse in enterococcal communities with drug-resistant subpopulations

    Kelsey M Hallinen et al.
    Collapse of bacterial communities containing antibiotic-resistant and susceptible cells can be driven by increased population size or delayed drug exposure.
    1. Ecology
    2. Microbiology and Infectious Disease

    Metapopulation ecology links antibiotic resistance, consumption, and patient transfers in a network of hospital wards

    Julie Teresa Shapiro et al.
    Patterns of antibiotic use and the connectivity between wards are independently associated with the incidence of antimicrobial-resistant infections in hospital networks.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Integron activity accelerates the evolution of antibiotic resistance

    Célia Souque et al.
    Integrons deploy a variety of adaptive strategies including excision, shuffling, and duplication of cassettes that foster rapid bacterial adaptation and resistance evolution while protecting the genomic integrity of the host.

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