High-dose isoniazid is recommended to treat multidrug-resistant tuberculosis (MDR TB). Among 958 MDR TB isolates identified in France during 2008-2022, 93.1% exhibited high-level isoniazid resistance, and molecular testing showed limited diagnostic accuracy in predicting resistance. Clinicians should reconsider using high-dose isoniazid in MDR TB treatment because of suboptimal effect and toxicity concerns.
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http://dx.doi.org/10.3201/eid3103.241473 | DOI Listing |
High-dose isoniazid is recommended to treat multidrug-resistant tuberculosis (MDR TB). Among 958 MDR TB isolates identified in France during 2008-2022, 93.1% exhibited high-level isoniazid resistance, and molecular testing showed limited diagnostic accuracy in predicting resistance.
View Article and Find Full Text PDFAnimal Model Exp Med
February 2025
Department of Pharmacology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
Background: Developing a granulomatous liver injury preclinical model may pave the way to understanding hepatic-TB (tuberculosis) and autoimmune granulomatous liver diseases. Antitubercular (ATT) and other drugs' metabolism in the presence of a specific type of liver injury is not well understood. The present study aimed to establish a preclinical model of granulomatous hepatitis by using the BCG (Bacillus Calmette-Guérin) vaccine, further studying it in the presence of ATT dosing, and analyze the pharmacokinetics of isoniazid, rifampicin, and their respective primary metabolites.
View Article and Find Full Text PDFInt J Pharm
March 2025
Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata 700054 India. Electronic address:
Pulmonary delivery of combination anti-tubercular drugs can prevent emergence of drug resistance and improve therapeutic efficacy. However, several drugs in anti-Tuberculosis combinations possess contrasting physicochemical properties that necessitate precise particle engineering with meticulous design for successful co-delivery. High dose requirements further constrain addition of excipients in the formulation.
View Article and Find Full Text PDFFront Immunol
February 2025
Department of Respiratory and Critical Care Medicine, Zhejiang Provincial People's Hospital Bijie Hospital, Bijie, Guizhou, China.
Background: Tuberculous meningitis (TBM) is a non-purulent inflammatory condition affecting the meninges and spinal membranes, caused by Mycobacterium tuberculosis (MTB) infection. This study seeks to explore the impact of varying INH dosages and NAT2 gene polymorphisms on TBM treatment, contributing new insights to improve clinical management and patient prognosis.
Methods: Patients with TBM hospitalized between July 2020 and December 2022 were categorized into two groups based on INH dosage: the standard-dose group (300 mg/day) and the high-dose group (600 mg/day).
Int J Tuberc Lung Dis
February 2025
Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique;, ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain;, Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Barcelona, Spain.
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