The Metabolism of Nicotinic Acid of Acid Fast Bacilli

histological evaluation of the effect of three medicaments; trichloracetic acid, formocresol and mineral trioxide aggregate on pulpotomized teeth of dogs

چکیده ندارد.

Nicotinic Acid Metabolism

Previous reports from this laboratory have described the isolation of 6-hydroxynicotinic acid and 6-0x0-1 ,4,5,6-tetrahydronicotinic acid from the reaction media of a clostridial species grown on nicotinic acid (1). Bn enzyme that catalyzes the reversible oxidation of nicotinic acid to HNA’ has been purified from extracts of this microorganism (2). Since fortified crude extract of this Clostrid...

Comparative morphology of acid-fast bacilli.

Relationship between CT Findings of Pulmonary Tuberculosis and Acid-Fast Bacilli Sputum Smears

Background and purpose: Computed tomography (CT) scan is of great help in confirming the diagnosis of tuberculosis (TB) before the sputum test result. The purpose of this study was to investigate the relationship between pulmonary involvement patterns in CT scans of TB patients with positive sputum smears. Materials and methods: This retrospective descriptive-analytical study was conducted usi...

Nicotinic acid metabolism. II. The isolation and characterization of intermediates in the fermentation of nicotinic acid.

6-Hydroxynicotinic acid was demonstrated to be the first intermediate in the degradation of nicotinic acid by a clostridium. In the presence of pyruvate, other intermediates accumulated; two of these were identified, one as 1,4,5,6tetrahydro-6-oxonicotinic acid, and the other as a!-methyleneglutaric acid. The pathways for nicotinic acid degradation may be considered as involving successive oxid...