Vitamin B6 depletion in man: urinary excretion of quinolinic acid and niacin metabolites.
D006801:Humans; D008297:Male; D009536:Niacinamide / Q000378:metabolism; D009539:Nicotinic Acids / Q000378:metabolism*; D011725:Pyridines / Q000378:metabolism*; D011728:Pyridones / Q000378:metabolism; D014364:Tryptophan / Q000378:metabolism* / Q000494:pharmacology; D014556:Urine; D026681:Vitamin B 6 Deficiency / Q000378:metabolism*
D009539:Nicotinic Acids; D011725:Pyridines; D011728:Pyridones; D009536:Niacinamide; D014364:Tryptophan