title: Recent studies on dynorphin and enkephalin precursor fragments in central nervous system.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D004399:Dynorphins; D004723:Endorphins / Q000096:biosynthesis*; D004745:Enkephalins / Q000096:biosynthesis*; D007120:Immunochemistry; D010446:Peptide Fragments / Q000096:biosynthesis; D051381:Rats
chemical_list: D004723:Endorphins; D004745:Enkephalins; D010446:Peptide Fragments; D004399:Dynorphins