Only one FDA-approved β-lactamase inhibitor has ever been orally available: clavulanic acid, approved in 1984. Avibactam, approved by FDA in 2015, is the first of a new class of BLIs called diazabicyclooctanes, or "DBOs". This class has much broader coverage than clavulanic acid but can only be administered by intravenous injection. Herein, we describe the synthesis and testing of the first approved BLI to be rendered orally bioavailable since clavulanic acid (1984).
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http://dx.doi.org/10.1021/acs.jmedchem.8b01389 | DOI Listing |
Int J Mol Sci
January 2025
College of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China.
A novel fluorescent probe, Bibc-DNBS, based on the combination of the PET (photoinduced electron transfer) and ESIPT (excited-state intramolecular proton transfer) mechanisms, was designed and synthesized. Bibc-DNBS exhibited a Stokes shift of 172 nm in the fluorescence detection field. In addition, the probe exhibited good performance in key parameters in bioassays such as sensitivity, specificity, and response time.
View Article and Find Full Text PDFMicroorganisms
January 2025
Department of Bacteriology and Virology, Semnan University of Medical Sciences, Semnan 35147-99442, Iran.
Sepsis is a serious worldwide health concern, and () is the main cause. This study investigates the co-expression of and , and genes in isolated from septicemic patients, aiming to clarify the interaction between virulence and resistance. This study evaluated 100 isolates from septicemic patients.
View Article and Find Full Text PDFAntibiotics (Basel)
January 2025
Department of Pharmacology and Toxicology, University of Veterinary Medicine, H-1078 Budapest, Hungary.
Background: Antimicrobial resistance is one of the greatest challenges of our time, urging researchers in both veterinary and public health to engage in collaborative efforts, thereby fostering the One Health approach. Infections caused by species can not only lead to significant diseases in poultry but also pose serious threats to human life, particularly in hospital (nosocomial) infections; therefore, it is crucial to identify their antimicrobial resistance.
Methods: Our objective was to assess the susceptibility profile of commensal strains ( = 227) found in commercial chicken flocks in Hungary through the determination of minimum inhibitory concentration (MIC) values.
Antibiotics (Basel)
January 2025
Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.
Background: Thermophilic species are among the main culprits behind bacterial gastroenteritis globally and have grown progressively resistant to clinically important antimicrobials. Many studies have been carried out to explore innovative and alternative strategies to control antibiotic-resistant campylobacters in animal reservoirs and human hosts; however, limited studies have been performed to develop efficient control schemes against biofilms.
Methods: This study investigated the antimicrobial and antibiofilm activities of some herbal extracts against multidrug-resistant (MDR) species recovered from different sources using phenotypic and molecular techniques.
Antibiotics (Basel)
January 2025
Department of Prosthodontics, Study of Dental Medicine, University of Split School of Medicine, 21000 Split, Croatia.
: This study aimed to explore antibiotic prescribing practices for dental implant placement in Croatia. : We conducted a cross-sectional questionnaire-based study including dentists in Croatia who perform dental implant therapy. The questionnaire assessed the dentists' age, working experience, education level, and whether they use antibiotics for dental implant placement, as well as the choice of antibiotics, timing, and reasons for antibiotics use.
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