Antibodies disrupt bacterial adhesion by ligand mimicry and allosteric interference.

A critical step in infections is the attachment of many microorganisms to host cells using lectins that bind surface glycans, making lectins promising antimicrobial targets. Upon binding mannosylated glycans, FimH, the most studied lectin adhesin of type 1 fimbriae in , undergoes an allosteric transition from an inactive to an active conformation that can act as a catch-bond. Monoclonal antibodies that alter FimH glycan binding in various ways are available, but the mechanisms of these antibodies remain unclear.

Clonal and resistance profiles of fluoroquinolone-resistant uropathogenic in countries with different practices of antibiotic prescription.

Background: Antibiotic prescription practices differ between countries, influencing regional antimicrobial resistance prevalence. However, comparisons of clonal diversity among resistant bacteria in countries with different prescribing practices are rare. The rise of fluoroquinolone-resistant (FQREC), often multidrug-resistant, exacerbates global antibiotic resistance.

Gut resident profile predicts the eighteen-month probability and antimicrobial susceptibility of urinary tract infections.

Background: Community-acquired UTI is the most common bacterial infection managed in general medical practice that can lead to life-threatening outcomes. While UTIs are primarily caused by colonizing the patient's gut, it is unclear whether the gut resident profiles can predict the person's risks for UTI and optimal antimicrobial treatments. Thus, we conducted an eighteen-month long community-based observational study of fecal colonization and UTI in women aged 50 years and above.

Increase in the Rate of Gut Carriage of Fluoroquinolone-Resistant Escherichia coli despite a Reduction in Antibiotic Prescriptions.

Fluoroquinolone use for urinary tract infections has been steadily declining. Gut microbiota is the main reservoir for uropathogenic but whether the carriage of fluoroquinolone-resistant has been changing is unknown. .