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Microbiol Spectr
December 2024
National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Beijing Tuberculosis and Thoracic Tumor Institute, Capital Medical University, Beijing, China.
Given the intrinsic resistance of to a wide range of conventional antibiotics, it is urgent to explore new therapeutic approaches to manage this infection effectively. Carbonyl cyanide 3-chlorophenylhydrazone (CCCP), a proton pump inhibitor, has shown good bacteriostatic activity against . This study aimed to determine its synergistic antimicrobial effects when combined with commonly used antibiotics.
View Article and Find Full Text PDFAntimicrob Agents Chemother
December 2024
School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China.
exhibits intrinsic resistance to most antibiotics, hence leading to infections that are difficult to treat. To address this issue, the identification of new molecular targets is essential for the development or repositioning of therapeutic agents. This study demonstrated that the -knockout strain, Mab, became significantly susceptible to a range of antibiotics, not only but also exhibited susceptibility to rifabutin, bedaquiline, and linezolid .
View Article and Find Full Text PDFAntimicrob Agents Chemother
December 2024
Public Health Agency of Sweden, Solna, Sweden.
This comparative study aimed at qualifying a broth microdilution (BMD) assay for phenotypic drug susceptibility testing (pDST) of complex (MTBC) strains for implementation in a routine DST workflow. The assay was developed based on the EUCAST (European Committee on Antimicrobial Susceptibility Testing) reference protocol for determination of the minimum inhibitory concentration (MIC) of 14 anti-tuberculous drugs (isoniazid [INH], rifampicin [RIF], ethambutol [EMB], amikacin [AMI], moxifloxacin [MFX], levofloxacin [LFX], bedaquiline [BDQ], clofazimine [CFZ], delamanid [DLM], pretomanid [PA], para-aminosalicylic acid [PAS], linezolid [LZD], ethionamide [ETH], and cycloserine [CS]). Forty MTBC strains with various drug resistance profiles were tested to determine the agreement between MIC results and genotypic drug susceptibility testing (gDST) results derived from whole-genome sequencing (WGS).
View Article and Find Full Text PDFACS Omega
December 2024
Wenzhou Central Hospital, Wenzhou 325000, Zhejiang, China.
Bedaquiline (BDQ), a diarylquinoline compound, is an inhibitor of mycobacterial ATP synthase, specifically with FDA approval as a treatment for multidrug-resistant tuberculosis (MDR-TB). M2 is the main metabolite of BDQ and is active against tuberculosis. The objective of this study was to establish and validate a sensitive and convenient ultraperformance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) approach to concurrently quantify BDQ and M2 in rat plasma and to examine whether resveratrol, a CYP3A4 inhibitor, could influence the pharmacokinetics of BDQ and M2 in rats.
View Article and Find Full Text PDFUlster Med J
December 2024
Department of Infectious Diseases, University Hospitals Birmingham NHS Trust.
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