Tuberculosis is a contagious disease caused by Mycobacterium tuberculosis. After a long period during which this disease seemed to be declining, the last two decades have seen an unexpected return recorded (Raviglione et al., 1995). Isoniazid, pyraziniamide, ethambutol, rifampicin and streptomycin, generally used in combination, are still the current drugs of choice in the therapy of tuberculos...

Treatment of tuberculosis, a complex granulomatous disease, requires long-term multidrug therapy to overcome tolerance, an epigenetic drug resistance that is widely attributed to nonreplicating bacterial subpopulations. Here, we deploy Mycobacterium marinum-infected zebrafish larvae for in vivo characterization of antitubercular drug activity and tolerance. We describe the existence of multidru...

98 patients with tuberculous meningitis were studied with a view to assessing the value of steroids as an adjuvant to antitubercular drugs. The patients were divided into three groups irrespective of the clinical stage of the disease. One group received antitubercular drugs alone, the second oral prednisolone, and the third intrathecal steroids, in addition to the antitubercular drugs. There wa...

Pyrazinamide (PZA) is a first-line tuberculosis drug that inhibits the growth of Mycobacterium tuberculosis via an as yet undefined mechanism. An M. tuberculosis laboratory strain that was auxotrophic for pantothenate was found to be insensitive to PZA and to the active form, pyrazinoic acid (POA). To determine whether this phenotype was strain or condition specific, the effect of pantothenate ...

Isoxazoline derivatives of the natural products eugenol, 1’- S-acetoxychavicol acetate and sclareol are prepared through 1,3-dipolar cycloaddition reactions in an aqueous buffered system. The compounds evaluated for their antitubercular antibacterial activities. Compounds 2, 2a 3f display strong activity with minimum inhibitory concentration values 26.68, 17.89 14.58 µM, respectively. Furthermo...

PURPOSE We report here the antimycobacterial activity of some already synthesized tetrazole derivatives containing tetrazole against Mycobacterium tuberculosis strain H37Rv. METHODS In vitro evaluation of the antitubercular activity was carried out within the Tuberculosis Antimicrobial Acquisition & Coordinating Facility (TAACF) screening program for the discovery of novel drugs for the treat...

Article history: Received on: 06/04/2015 Revised on: 22/04/2015 Accepted on: 17/05/2015 Available online: 27/06/2015 Effect of culture conditions and critical medium components on antitubercular pigment production from novel Streptomyces sp D25 isolated from Thar desert, Rajasthan was investigated. Antitubercular pigment from Streptomyces sp. D25 was produced by Agar Surface Fermentation (ASF) ...

BACKGROUND Rifampicin induces expression of the cytochrome P450 isoenzyme 2B6 (CYP2B6), which metabolizes efavirenz. The CYP2B6 516G>T polymorphism impairs efavirenz metabolism and occurs more commonly in Africans than in Caucasians. We explored the effect of rifampicin-based antitubercular therapy and the 516G>T polymorphism on efavirenz concentrations in HIV-infected patients in South Africa....

Background: Tuberculosis is a global and serious Public Health problem due to the increase of multidrugresistant and extensively drug-resistant cases; as a result, diverse research groups worldwide are focusing their efforts on finding novel antituberculous agents that can provide greater effectiveness, less toxicity and having a specific mechanism of action, possibly being coadjuvants in the t...