title: Effect of protein intake on the excretion of quinolinic acid and niacin metabolites by men during vitamin B6 depletion.
mesh_terms: D000293:Adolescent; D000328:Adult; D004044:Dietary Proteins / Q000494:pharmacology*; D006801:Humans; D008297:Male; D009536:Niacinamide / Q000652:urine; D009539:Nicotinic Acids / Q000652:urine*; D011725:Pyridines / Q000652:urine*; D011736:Pyridoxine / Q000494:pharmacology*; D014364:Tryptophan / Q000378:metabolism
chemical_list: D004044:Dietary Proteins; D009539:Nicotinic Acids; D011725:Pyridines; D009536:Niacinamide; D014364:Tryptophan; D011736:Pyridoxine