title: Free tryptophan in plasma and brain tryptophan metabolism.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D001923:Brain Chemistry; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005508:Food Deprivation; D006493:Heparin / Q000494:pharmacology; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000032:analysis; D007103:Immobilization; D008297:Male; D051381:Rats; D012701:Serotonin / Q000032:analysis; D013315:Stress, Psychological; D014364:Tryptophan / Q000032:analysis / Q000097:blood / Q000378:metabolism*
chemical_list: D005230:Fatty Acids, Nonesterified; D012701:Serotonin; D006897:Hydroxyindoleacetic Acid; D014364:Tryptophan; D006493:Heparin