nontuberculous mycobacteria
SusceptibilityIn Vitro Susceptibility Testing of Omadacycline against Nontuberculous MycobacteriaInfections caused by nontuberculous mycobacteria (NTM) are increasing globally. Mycobacterium avium complex (MAC) and Mycobacterium abscessus complex are the most frequently encountered NTM, and oral treatment options are extremely limited for these pathogens, especially for the...
Experimental TherapeuticsDifferential In Vitro Activities of Individual Drugs and Bedaquiline-Rifabutin Combinations against Actively Multiplying and Nutrient-Starved Mycobacterium abscessusCurrent treatment options for lung disease caused by Mycobacterium abscessus complex infections have limited effectiveness. To maximize the use of existing antibacterials and to help inform regimen design for treatment, we assessed the in vitro bactericidal activity of single drugs against actively multiplying and net nonreplicating...
Letter to the EditorKatG as Counterselection Marker for Nontuberculous Mycobacteria
Experimental TherapeuticsTBAJ-876, a 3,5-Dialkoxypyridine Analogue of Bedaquiline, Is Active against Mycobacterium abscessusLung disease caused by Mycobacterium abscessus is very difficult to cure, and treatment failure rates are high. The antituberculosis drug bedaquiline (BDQ) is used as salvage therapy against this dreadful disease. However, BDQ is highly lipophilic, displays a long terminal half-life, and presents a cardiotoxicity liability associated with QT interval prolongation....
Editor's Pick Experimental TherapeuticsRifabutin Is Active against Mycobacterium abscessus in MiceThere is no reliable cure for Mycobacterium abscessus lung disease. Rifampin is not used clinically due to poor in vitro potency. In contrast, we have shown that rifabutin, another approved rifamycin used to treat tuberculosis, is potent in vitro against M. abscessus. Here, we...
SusceptibilityIn Vitro Activity of Bedaquiline and Delamanid against Nontuberculous Mycobacteria, Including Macrolide-Resistant Clinical IsolatesWe evaluated the in vitro activities of the antimicrobial drugs bedaquiline and delamanid against the major pathogenic nontuberculous mycobacteria (NTM). Delamanid showed high MIC values for all NTM except Mycobacterium kansasii. However, bedaquiline showed low MIC values for the major pathogenic NTM, including...
SusceptibilityIn Vitro Activities of Bedaquiline and Delamanid against Nontuberculous Mycobacteria Isolated in Beijing, ChinaDue to the natural resistance of nontuberculous mycobacteria (NTM) against multiple antibiotics, treatment of infections caused by them is often long-course and less successful. The main objective of our study was the evaluation of in vitro susceptibility of 209 isolates consisting of different NTM species against bedaquiline and delamanid. Furthermore, reference strains of 33 rapidly growing mycobacterium (RGM) species and 19...
Mechanisms of ResistanceSpecies Distribution and Macrolide Susceptibility of Mycobacterium fortuitum Complex Clinical IsolatesThe understanding of species distribution and inducible macrolide resistance in the Mycobacterium fortuitum complex (MFC) is limited. Of 90 mostly respiratory MFC clinical isolates, half were M. fortuitum, followed by M. peregrinum...
SusceptibilityIn Vitro Activities of Omadacycline against Rapidly Growing MycobacteriaThe in vitro activity of omadacycline, a new tetracycline derivative, was evaluated against isolates of Mycobacterium abscessus, Mycobacterium chelonae, and Mycobacterium fortuitum using a broth microtiter dilution assay...
