The synthesis, structure, and biological evaluation of a series of novel rifamycin derivatives, Rifastures (RFA) with potent anti-tuberculosis activity are presented. Some of these derivatives showed higher in vitro activity than rifabutin and rifampicin against not only Mycobacterium tuberculosis strains but also against MAC and Mycobacterium kansasii.
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http://dx.doi.org/10.1016/j.bmcl.2006.08.090 | DOI Listing |
Trans R Soc Trop Med Hyg
January 2025
Research Center for Care and Control of Infectious Disease, Universitas Padjadjaran, Bandung 45363, Indonesia.
Background: Certain micronutrient levels have been associated with the risk of developing TB disease. We explored the possible association of selected at-risk micronutrient levels with the development of Mycobacterium tuberculosis (M.tb) infection.
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July 2023
Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States.
is a waterborne pathogen responsible for tuberculosis-like infections in cold-blooded animals and is an opportunistic pathogen in humans. is the closest genetic relative of the complex and is a reliable surrogate for drug susceptibility testing. We synthesized and evaluated two nanoparticle (NP) formulations for compatibility with rifampicin, isoniazid, pyrazinamide, and ethambutol (PIRE), the front-line antimycobacterial drugs used in combination against active tuberculosis infections.
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January 2024
Department of Biotechnology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan.
Multidrug-resistant organisms are bacteria that are no longer controlled or killed by specific drugs. One of two methods causes bacteria multidrug resistance (MDR); first, these bacteria may disguise multiple cell genes coding for drug resistance to a single treatment on resistance (R) plasmids. Second, increased expression of genes coding for multidrug efflux pumps, which extrude many drugs, can cause MDR.
View Article and Find Full Text PDFIntroduction Tuberculosis (TB) is an infectious disease caused by . Various studies have established an association between diabetes mellitus (DM) and pulmonary TB. This study describes the prevalence of DM and its predictors in smear-positive TB patients.
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June 2024
Institute of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-Universität, Freiburg, Germany.
Rifamycin and its derivatives are natural products that belong to the class of antibiotic-active polyketides and have significant therapeutic relevance within the therapy scheme of tuberculosis, a worldwide infectious disease caused by . Improving the oral bioavailability of rifamycin B was achieved through semisynthetic modifications, leading to clinically effective derivatives such as rifampicin. Genetic manipulation of the rifamycin polyketide synthase gene cluster responsible for the production of rifamycin B in the strain S699 represents a promising tool to generate new rifamycins.
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