title: Evidence for two separate opiate peptide neuronal systems.
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000378:metabolism*; D000818:Animals; D000918:Antibody Specificity; D001921:Brain / Q000166:cytology / Q000378:metabolism*; D001933:Brain Stem / Q000378:metabolism; D004723:Endorphins / Q000378:metabolism*; D004745:Enkephalins / Q000378:metabolism*; D007031:Hypothalamus / Q000378:metabolism; D007158:Immunologic Techniques; D008297:Male; D051381:Rats; D008083:beta-Lipotropin / Q000378:metabolism*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D000324:Adrenocorticotropic Hormone; D008083:beta-Lipotropin