South Africa has a heavy burden of tuberculosis (TB); an incidence of 526 cases per 100 000 of the population makes it one of the highest in the world. Along with other severely affected countries in eastern and southern Africa, there is a significant degree of coinfection with HIV and Mycobacterium tuberculosis (MTB). In the World Health Organisation (WHO) African Region, 31% of adults aged 15...

OBJECTIVES To investigate the effect of trimethoprim/sulfamethoxazole on the survival of Mycobacterium tuberculosis and trimethoprim and sulfamethoxazole individually and combined with the first-line tuberculosis drugs (isoniazid, rifampicin and ethambutol). METHODS M. tuberculosis strains were exposed to either trimethoprim/sulfamethoxazole combination or sulfamethoxazole and trimethoprim al...

OBJECTIVES The aims of this study were to assess the in vitro activity of 2-methyl-adenosine against Mycobacterium tuberculosis and evaluate, and to intracellular efficacy, and to evaluate its effectiveness against M. tuberculosis in a persistent state model and examine its potential mechanism of action. METHODS In vitro activity was determined by means of a colorimetric microdilution broth a...

In this work, we reported the synthesis and evaluation of antimycobacterial and antifungalactivity of a series of thiocarbohydrazone derivatives which are thiacetazone congeners. Thetarget compounds were synthesized in superior yields by reacting thiocarbohydrazide withdifferent aromatic aldehydes and methyl ketones. Compounds 8, 19 and 25 were found to bethe most potent derivatives, exhibiting...

In continuation of our endeavor towards the development of potent and effective antimicrobial agents, three series of halophenyl bis-hydrazones (14a-n, 16a-d, 17a and 17b) were synthesized and evaluated for their potential antibacterial, antifungal and antimycobacterial activities. These efforts led to the identification of five molecules 14c, 14g, 16b, 17a and 17b (MIC range from 0.12 to 7.81 ...

Wollamide B is a cationic antimycobacterial cyclohexapeptide that exhibits activity against Mycobacterium bovis (M. bovis) (IC50 of 3.1 μM). Aiming to define its structural activity relationship (SAR), optimizing potency and pharmacokinetic properties, libraries of analogues were synthesized following a standard Fmoc-based solid phase peptide synthesis approach. The antimycobacterial activities...

in this study synthesis of nicotinoyl hydrazone derivatives is investigated by introducing the nicotinicacidhydrazidepharmacophore into several molecules and screening for antimycobacterial activity. benzaldehyde derivatives react with nicotinicacidhydrazideto form nicotinoylhydrazones.the synthesized compounds were screened against m. tuberculosis h 37 rv, clinical isolates of m. tuberculosis ...

Article history: Received on: 12/07/2016 Accepted on: 13/12/2016 Available online: 27/02/2017 The aim of the present study was to evaluate the antimycobaterial activity of Aloe vera leaf, extracted in different solvents in increasing order of polarity and tested against Mycobacterium smegmatis (MTCC 994). Antimycobacterial activity was determined by agar well-diffusion method. Hot methanol extr...