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This study aims to characterize the biliary microbiome as neglected factor in patients with ischaemic-type biliary lesions (ITBL) after liver transplantation. Therefore, the V1-V2 region of the 16S rRNA gene was sequenced in 175 bile samples. Samples from patients with anastomotic strictures (AS) served as controls. Multivariate analysis and in silico metagenomics were applied cross-sectionally and longitudinally. The microbial community differed significantly between ITBL and AS in terms of alpha and beta diversity. Both, antibiotic treatment and stenting were associated independently with differences in the microbial community structure. In contrast to AS, in ITBL stenting was associated with pronounced differences in the biliary microbiome, whereas no differences associated with antibiotic treatment could be observed in ITBL contrasting the pronounced differences found in AS. Bacterial pathways involved in the production of antibacterial metabolites were increased in ITBL with antibiotic treatment. After liver transplantation, the biliary tract harbours a complex microbial community with significant differences between ITBL and AS. Fundamental changes in the microbial community in ITBL can be achieved with biliary stenting. However, the effect of antibiotic treatment in ITBL was minimal. Therefore, antibiotics should be administered wisely in order to reduce emerging resistance of the biliary microbiome towards external antibiotics.
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http://dx.doi.org/10.1111/liv.15194 | DOI Listing |
Clin Pediatr (Phila)
September 2025
Department of Medicine (Infectious Disease), University of Connecticut Health Center, Boston University Medical Center, Falmouth Hospital, Falmouth, MA, USA.
A total of 101 patients with a clinical picture of persisting Lyme disease seen at the University of Connecticut Health Center and Boston Medical Center were recruited for the study to determine whether persistent infection is the likely cause. Brain SPECT imaging and responses to antibiotic treatments were recorded. Patients had more than 5 symptoms lasting more than 6 months.
View Article and Find Full Text PDFEmerg Med Australas
October 2025
Emergency and Trauma Centre, The Alfred Hospital, Melbourne, Victoria, Australia.
Objectives: Acute pyelonephritis (APN) is a common diagnosis among patients presenting to the Emergency Department (ED). It is treated by empiric antibiotics within the ED. With a rise in antimicrobial resistance globally, it is unknown whether patients are being managed with empiric antibiotics that are appropriate for the causative organisms of APN.
View Article and Find Full Text PDFMicrob Drug Resist
September 2025
Drug Discovery Research, Wockhardt Research Centre, Wockhardt Ltd., Chhatrapati Sambhajinagar, India.
Cefepime (FEP), a fourth-generation cephalosporin combined with tazobactam (TAZ), a β-lactamase inhibitor, is being developed by Wockhardt as a pharmacodynamically optimized fixed dose combination (FEP-2 g + TAZ-2 g) for the treatment of multidrug-resistant Gram-negative infections. To undertake an exposure-response analysis for establishing pharmacokinetic (PK)/pharmacodynamic (PD) targets, it is crucial to characterize the PK profile of compounds in surrogate compartments, such as plasma and lung, in clinically relevant animal infection models used to evaluate efficacy. In the current study, PKs of FEP and TAZ were assessed in plasma and in epithelial lining fluid (ELF) of neutropenic noninfected, lung-infected, and thigh-infected mice.
View Article and Find Full Text PDFSurg Infect (Larchmt)
September 2025
Department of Surgery, Division of Acute Care Surgery, University of Florida College of Medicine, Gainesville, Florida, USA.
Patients with traumatic injuries who develop ventilator-associated pneumonia (VAP) incur a higher risk of developing multi-drug resistance. Shorter duration of antibiotic agents for early VAP at five days may reduce antibiotic agent exposure without worsening patient outcomes. This retrospective cohort study performed at a Level I Trauma Center included adult (≥16 years old) patients with trauma diagnosed with bronchoalveolar lavage (BAL)-proven early (within four days of intubation) bacterial VAP.
View Article and Find Full Text PDFOpen Res Eur
September 2025
Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, 1870, Denmark.
Background: Innovative antibiotic discovery strategies are urgently needed to successfully combat infections caused by multi-drug-resistant bacteria.
Methods: We employed a direct screening approach to identify compounds with antimicrobial and antimicrobial helper-drug activity against Gram-positive and Gram-negative bacteria. We used this platform in two different strains of methicillin-resistant (MRSA) and aminoglycoside-resistant strains of to screen for antimicrobials compounds, which potentiate the activity of aminoglycoside antibiotics.