Urinary Tryptophan Metabolites Research Articles

Blockage of transformation of tryptophan to nicotinic acid by experimental hepatitis in mice.

THE existence of biochemical lesions in the complicated path from amino-acid to vitamin in man, and in experimental animals suffering from various diseases, has been identified by a number of authors analysing urinary metabolites of tryptophan by means of paper and column chromatography1–6. These analyses have shown an accumulation in the urine of metabolites proximal to the lesion.

Some Aspects of Tryptophan Metabolism in Human Subjects: II. Urinary Tryptophan Metabolites on a Low-Niacin Diet

Some Aspects of Tryptophan Metabolism in Human Subjects: II. Urinary Tryptophan Metabolites on a Low-Niacin Diet

Quantitative studies on human urinary metabolites of tryptophan as affected by isoniazid and deoxypyridoxine.

Quantitative studies on human urinary metabolites of tryptophan as affected by isoniazid and deoxypyridoxine.