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We confirmed that chlorhexidine decontamination yielded more nontuberculous mycobacteria than did the N-acetyl-l-cysteine-NaOH-oxalic acid procedure from respiratory samples of cystic fibrosis patients on solid cultures. However, this improved recovery is mostly balanced if the latter is combined with liquid culture. Furthermore, none of the 145 cough swabs, used to sample young children, cultured positive, suggesting that swabs are low-quality samples.
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http://dx.doi.org/10.1128/JCM.02035-13 | DOI Listing |
Int J Infect Dis
September 2025
SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Health Sciences, Stellenbosch University, Cape Town, South Africa; Department of Microbiology and Biochemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontei
Background: Mycobacterium simiae is a slow-growing environmental nontuberculous mycobacterium (NTM), commonly isolated from soil and water. M. simiae is not known to transmit zoonotically or via human-to-human contact; infection is presumed to occur through direct environmental exposure.
View Article and Find Full Text PDFMonaldi Arch Chest Dis
September 2025
Department of Community Medicine, K S Hegde Medical College, Mangaluru, Karnataka.
Fiber-optic bronchoscopy (FOB) plays a crucial role in the diagnosis and management of various pulmonary diseases by offering direct visualization of the airways and enabling targeted sampling for microbiological and histopathological evaluation. This study aimed to assess the clinical, radiological, microbiological, and histopathological profiles of patients undergoing FOB. A retrospective analysis of 103 participants who underwent the procedure over one year was conducted.
View Article and Find Full Text PDFMicrobiol Spectr
September 2025
Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.
Efficient DNA delivery is essential for genetic manipulation of mycobacteria and for dissecting their physiology, pathogenesis, and drug resistance. Although electroporation enables transformation efficiencies exceeding 10⁵ CFU per µg DNA in and , it remains highly inefficient in many nontuberculous mycobacteria (NTM), including . Here, we discovered that NTM such as exhibit exceptional tolerance to ultra-high electric field strengths and that hypertonic preconditioning partially protects cells from electroporation-induced damage.
View Article and Find Full Text PDFLancet Rheumatol
September 2025
Service de Médecine interne et polyvalente, Centre Hospitalier du Haut-Anjou, Château-Gontier, France; Université d'Angers, Inserm, CNRS, MITOVASC, Equipe MitoLab, SFR ICAT, F-49000 Angers, France. Electronic address:
Infections are increasingly recognised as a major cause of morbidity and mortality in patients with vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome. We conducted a systematic review to characterise the infectious burden of VEXAS syndrome and propose preventive strategies. We included 57 studies (813 patients) showing that infections in patients with VEXAS syndrome were frequent, severe in 40-60% of cases, and fatal in 6-15% of cases.
View Article and Find Full Text PDFJ Med Chem
September 2025
Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan 410013, China.
KasA and KasB are promising drug targets against and infectious nontuberculous mycobacteria, while most lead compounds are in the preclinical development stage. Herein, a platensimycin (PTM) analogue library consisting of 340 members was first screened to identify 46 PTM thioethers with superior activity compared to that of PTM against . Next, 19 PTM thioethers were chosen and semisynthesized from PTM oxirane (), together with seven PTM ether derivatives and 6-ido, 6-bromo-, and 6-thiocyanato PTM.
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