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Fitness costs of Mycobacterium tuberculosis resistant to rifampicin is compensated by rapid Th2 polarization mediated by early and high IL-4 production during mice infection.
Sci Rep
January 2025
Experimental Pathology Department, National Institute of Medical Sciences and Nutrition Salvador Zubiran, Mexico City, Mexico.
It was a general belief that drug resistance in Mycobacterium tuberculosis (Mtb) was associated with lesser virulence, particularly rifampicin resistance, which is usually produced by mutations in the RNA polymerase Beta subunit (RpoB). Interestingly, this kind of bacterial mutations affect gene transcription with significant effects on bacterial physiology and metabolism, affecting also the bacterial antigenic constitution that in consequence can produce diverse immune responses and disease outcome. In the present study, we show the results of the Mtb clinical isolate A96, which is resistant to rifampicin and when used to infect BALB/c mice showed hypervirulence, apparently by rapidly polarization of the Th2 immune response through early and high production of IL-4.
View Article and Find Full Text PDFComparative effectiveness of bictegravir versus dolutegravir, raltegravir, and efavirenz-based antiretroviral therapy among treatment-naïve individuals with HIV.
Eur J Intern Med
January 2025
Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden. Electronic address:
Objective: Bictegravir or dolutegravir based antiretroviral therapy are first-line HIV treatments. However, no trial has recruited enough participants to estimate the most effective treatment, and there is little evidence on the comparative effectiveness of bictegravir and other available antiretrovirals, like efavirenz and raltegravir.
Methods: We emulated a four-arm target trial using country-wide data from Mexico.
Deciphering the bidirectional impact of leukocyte telomere length on multiple sclerosis progression: A Mendelian randomization study.
Mult Scler Relat Disord
January 2025
Lung Transplantation Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:
Observational studies have suggested a link between leukocyte telomere length (LTL) and multiple sclerosis (MS) progression, but the causal relationship remains uncertain. This study investigates the causal association between LTL and MS progression using a bidirectional two-sample Mendelian randomization (MR) approach. We analyzed genome-wide association summary statistics data from 472,174 individuals for LTL and 12,584 MS patients for disease progression.
View Article and Find Full Text PDFIsolated splenic tuberculosis in an immunocompetent child: A case report.
Int J Surg Case Rep
January 2025
Department of Pediatric Surgery, Mohamed VI University Hospital, Faculty of Medicine and Pharmacy, Abdelmalek Essaâdi University, Tetouan, Morocco.
Introduction: Tuberculosis remains a major public health problem in developing countries. Isolated splenic tuberculosis is a rare form of extrapulmonary tuberculosis, with few cases documented in the literature, occurring mainly in immunocompromised individuals. The purpose of this article is to contribute to the medical knowledge regarding this rare disease and to highlight the diagnostic challenges and management approach.
View Article and Find Full Text PDFIn silico identification of a phosphate marine steroid from Indonesian marine compounds as a potential inhibitor of phosphatidylinositol mannosyltransferase (PimA) in Mycobacterium tuberculosis.
Comput Biol Med
January 2025
Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45363, Indonesia; Drug Development Study Centre, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45363, Indonesia.
A higher death rate is associated with multiple factors, including medication resistance and co-infection with the human immunodeficiency virus (HIV). This shows the need to obtain new and effective drug candidates in improving tuberculosis (TB) treatment. In addition, the phosphatidylinositol mannosyltransferase (PimA) enzyme starts the production of phosphatidyl-myo-inositol.
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