title: Effect of L-tryptophan on brain serotonin metabolism in depressed patients.
mesh_terms: D001921:Brain / Q000378:metabolism; D001923:Brain Chemistry / Q000187:drug effects*; D002986:Clinical Trials as Topic; D003863:Depression / Q000134:cerebrospinal fluid / Q000188:drug therapy / Q000378:metabolism*; D005069:Evaluation Studies as Topic; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid; D010919:Placebos; D011339:Probenecid / Q000494:pharmacology; D012701:Serotonin / Q000378:metabolism*; D013129:Spinal Puncture; D014364:Tryptophan / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D010919:Placebos; D012701:Serotonin; D006897:Hydroxyindoleacetic Acid; D014364:Tryptophan; D011339:Probenecid