title: Measurements of tryptophan pyrrolase in vivo: induction and feedback inhibition.
mesh_terms: D000315:Adrenalectomy; D002245:Carbon Dioxide / Q000096:biosynthesis; D002247:Carbon Isotopes; D004790:Enzyme Induction; D005246:Feedback; D007016:Hypophysectomy; D008099:Liver / Q000201:enzymology*; D009243:NAD / Q000502:physiology*; D009536:Niacinamide / Q000494:pharmacology; D009539:Nicotinic Acids / Q000494:pharmacology; D014364:Tryptophan; D014366:Tryptophan Oxygenase / Q000378:metabolism*
chemical_list: D002247:Carbon Isotopes; D009539:Nicotinic Acids; D009243:NAD; D002245:Carbon Dioxide; D009536:Niacinamide; D014364:Tryptophan; D014366:Tryptophan Oxygenase