Enhanced nitrogen (N) availability is one of the main drivers of biodiversity loss and degradation of ecosystem functions. However, in very nutrient-poor ecosystems, enhanced N input can, in the short-term, promote diversity. Mediterranean Basin ecosystems are nutrient-limited biodiversity hotspots, but no information is available on their medium- or long-term responses to enhanced N input. Sin...

In response to letter from Sahu, we wish to inform that: (a) the group extensively deliberated about appropriate doses for anti-TB drugs to be recommended for our country based on available evidence and concluded that the earlier recommended dosages needed revision. The current dosages were arrived after looking into various available pharmacokinetic data and evidence within and outside the cou...

The reliability of mycobacterial growth indicator tubes (MGIT) for testing susceptibility of Mycobacterium tuberculosis to ethambutol and streptomycin was evaluated by comparing MGIT results to those obtained by the radiometric BACTEC TB system and the method of proportion. The method of proportion was considered the reference method. To resolve discrepancies, all three testing methods were rep...

Radiometric MICs of clarithromycin, a new macrolide drug, were determined against five mycobactin-dependent strains of Mycobacterium paratuberculosis (including two Crohn's disease clinical isolates) and compared with those of other drugs which included rifampin, ethambutol, amikacin, ofloxacin, ciprofloxacin, and sparfloxacin. Among the drugs screened, clarithromycin was the drug for which MIC...

We report a case of osteomyelitis and synovitis produced by Mycobacterium marinum in the left index finger of a fisherman. A combination of surgical intervention and antimicrobial therapy with minocycline, rifampin, and ethambutol was efficacious.

Gale, Glen R. (Veterans Administration Hospital, Durham, N.C.) and Helen H. McLain. Effect of ethambutol on cytology of Mycobacterium smegmatis. J. Bacteriol. 86:749-756. 1963.-Electron microscopy showed the effects of the antimycobacterial drug, ethambutol [d-2,2'-(ethylenediimino)-di-1-butanol], on the cytology of Mycobacterium smegmatis. After 10 hr of exposure to the drug, cells no longer c...

Thirty-five patients (88% male) with pulmonary infection caused by Mycobacterium kansasii have been reviewed. Sixty-six per cent had pre-existing lung disease, chronic bronchitis and emphysema accounting for half of the disorders. Unilateral lesions were present in 69% of patients whose chest radiographs were reviewed and 90% had cavitating disease. The development of unilateral or bilateral di...