title: Editorial: Tryptophan and serotonin in Down syndrome.
mesh_terms: D001792:Blood Platelets / Q000201:enzymology / Q000378:metabolism; D002262:Carboxy-Lyases / Q000378:metabolism; D004314:Down Syndrome / Q000097:blood / Q000188:drug therapy / Q000378:metabolism*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008995:Monoamine Oxidase / Q000378:metabolism; D012701:Serotonin / Q000097:blood / Q000378:metabolism*; D009435:Synaptic Transmission; D014364:Tryptophan / Q000172:deficiency / Q000378:metabolism*; D014365:Tryptophan Hydroxylase / Q000378:metabolism
chemical_list: D012701:Serotonin; D014364:Tryptophan; D014365:Tryptophan Hydroxylase; D008995:Monoamine Oxidase; D002262:Carboxy-Lyases