title: Dietary regulation of brain tryptophan metabolism by plasma ratio of free tryptophan and neutral amino acids in humans.
mesh_terms: D000596:Amino Acids / Q000097:blood*; D001798:Blood Proteins / Q000378:metabolism; D001921:Brain / Q000378:metabolism*; D004032:Diet; D004435:Eating; D005215:Fasting; D005247:Feeding Behavior; D006801:Humans; D006816:Huntington Disease / Q000378:metabolism; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid; D010300:Parkinson Disease / Q000378:metabolism; D011485:Protein Binding; D014364:Tryptophan / Q000097:blood / Q000134:cerebrospinal fluid / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D001798:Blood Proteins; D006897:Hydroxyindoleacetic Acid; D014364:Tryptophan