Fluoroquinolone resistance in group B Streptococcus is increasingly being reported worldwide. Here, we correlated fluoroquinolone resistance with mutations in gyrA, gyrB, parC, and parE genes, identified by mining whole-genome sequencing (WGS) data of 190 clonal complex 1 group B Streptococcus strains recovered from patients with invasive diseases in North America. We report a high prevalence of fluoroquinolone resistance (12%) among GBS strains in our collection. Our approach is the first step towards accurate prediction of fluoroquinolone resistance from WGS data in this opportunistic pathogen.
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http://dx.doi.org/10.1155/2016/6403928 | DOI Listing |
ACS Infect Dis
January 2025
Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
Developing new classes of drugs that are active against infections caused by is a priority for treating and managing this deadly disease. Here, we describe screening a small library of 20 DNA gyrase inhibitors and identifying new lead compounds. Three structurally diverse analogues were identified with minimal inhibitory concentrations of 0.
View Article and Find Full Text PDFSci Rep
January 2025
Microbiology Division, ICMR-Regional Medical Research Centre, Chandrasekharpur, Bhubaneswar, 751023, Odisha, India.
This research delves into the evolving dynamics of antibiogram trends, the diversity of antibiotic resistance genes and antibiotic efficacy against Vibrio cholerae strains that triggered the cholera outbreak 2022 in Odisha, India. The study will provide valuable insights managing antimicrobial resistance during cholera outbreaks. Eighty V.
View Article and Find Full Text PDFJ Ophthalmic Inflamm Infect
January 2025
Department of Ophthalmology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan.
Purpose: Corynebacterium species are commensals of human skin and mucous membranes and are recognized as important pathogens in ocular infections. This study investigated the clinical characteristics of Corynebacterium keratitis.
Methods: We retrospectively reviewed cases of bacterial keratitis in which Corynebacterium species were solely isolated from corneal scraping cultures collected at Ehime University Hospital between January 2010 and February 2024.
PLoS Biol
January 2025
Department of Biophysics, University of Michigan, Ann Arbor, Michigan, United States of America.
As failure rates for traditional antimicrobial therapies escalate, recent focus has shifted to evolution-based therapies to slow resistance. Collateral sensitivity-the increased susceptibility to one drug associated with evolved resistance to a different drug-offers a potentially exploitable evolutionary constraint, but the manner in which collateral effects emerge over time is not well understood. Here, we use laboratory evolution in the opportunistic pathogen Enterococcus faecalis to phenotypically characterize collateral profiles through evolutionary time.
View Article and Find Full Text PDFExpert Opin Pharmacother
January 2025
Dipartimento di Urologia, Ospedale Isola Tiberina - Gemelli Isola, Rome, Italy.
Introduction: Complicated urinary tract infections (cUTIs) represent a significant clinical challenge due to their association with sepsis, high morbidity and mortality, and an increased risk of recurrence and chronic infection. Effective management requires prompt, targeted interventions.
Areas Covered: This review highlights the importance of early, targeted antibiotic therapy based on local resistance profiles, patient-specific factors, and pharmacokinetic/pharmacodynamic considerations.
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