title: Does insulin act directly on the brain to increase tryptophan levels?
mesh_terms: D000596:Amino Acids / Q000097:blood; D000818:Animals; D001921:Brain / Q000187:drug effects / Q000378:metabolism*; D001933:Brain Stem / Q000378:metabolism; D003921:Diabetes Mellitus, Experimental / Q000097:blood; D005260:Female; D007328:Insulin / Q000494:pharmacology*; D051381:Rats; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D007328:Insulin; D014364:Tryptophan