The data on preparation of liposome-entrapped gentamicin sulfate and cefoperazone and their investigation on albino mice with staphylococcal destructive pneumonia are presented. Comparative study of the efficacy of gentamicin sulfate and cefoperazone in free and liposome-entrapped forms showed that immobilization of the antibiotics in phospholipid vesicles provided a 2-fold increase of their efficacy.
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Molecules
January 2025
Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., Moscow 119991, Russia.
In recent years, a number of synthetic potentiators of antibiotics have been discovered. Their action can significantly enhance the antibacterial effect and limit the spread of antibiotic resistance through inhibition of bacterial cystathionine-γ-lyase. To expand the known set of potentiators, we developed methods for the synthesis of five new representatives of 6-bromoindole derivatives-potential inhibitors of bacterial cystathionine-γ-lyase-namely potassium 3-amino-5-((6-bromoindolyl)methyl)thiophene-2-carboxylate () and its 6-bromoindazole analogs ( and ), along with two 6-broindazole analogs of the parent compound .
View Article and Find Full Text PDFJ Bone Joint Surg Am
January 2025
Harris Orthopaedics Laboratory, Massachusetts General Hospital, Boston, Massachusetts.
Background: Periprosthetic joint infections (PJIs) are a major complication of total joint replacement surgeries. This study investigated the enhancement of mechanical properties and antibiotic release in ultra-high molecular weight polyethylene (UHMWPE) through the encapsulation of submicron gentamicin sulfate (GS) particles, addressing the critical need for improved implant materials in orthopaedic surgery, particularly in managing PJIs.
Methods: The present study involved embedding submicron GS particles into UHMWPE flakes at concentrations of 2% to 10% by weight.
PLoS Biol
January 2025
Microbial Molecular Evolution Group, Department of Microbial Population Biology, Max Planck Institute for Evolutionary Biology, Plön, Germany.
Bacteriophages infect gram-negative bacteria by attaching to molecules present on the bacterial surface, often lipopolysaccharides (LPS). Modification of LPS can lead to resistance to phage infection. In addition, LPS modifications can impact antibiotic susceptibility, allowing for phage-antibiotic synergism.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Medical Microbiology, Leeds Teaching Hospitals Trust, Leeds, UK.
Background: Guidelines suggest treating fully penicillin-susceptible Enterococcus faecalis strains causing infective endocarditis with amoxicillin combined with gentamicin or ceftriaxone, but clinical evidence to support this practice is limited and monotherapy cohorts were excluded from studies. We describe antibiotic treatment, complications, and outcomes in patients with Enterococcus faecalis infective endocarditis, specifically comparing monotherapy versus combination therapy.
Methods: Retrospective analysis of prospectively collected cohort of patients with definite or possible infective endocarditis from 2 English centres between 2006 and 2021.
Clin Pharmacokinet
January 2025
Division of Medicines, Department of Pharmacy, Pharmacy Service, Hospital Clinic of Barcelona, Universitat de Barcelona, Barcelona, Spain.
Population pharmacokinetic (popPK) models are an essential tool when implementing therapeutic drug monitoring (TDM) and to overcome dosing challenges in neonates in clinical practice. Since vancomycin, gentamicin, and amikacin are among the most prescribed antibiotics for the neonatal population, we aimed to characterize the popPK models of these antibiotics and the covariates that may influence the pharmacokinetic parameters in neonates and infants with no previous pathologies. We searched the PubMed, Embase, Web of Science, and Scopus databases and the bibliographies of relevant articles from inception to the beginning of February 2024.
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