title: Enkephalin-induced inhibition of cortical neurones and the lack of this effect in morphine tolerant/dependent rats.
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000166:cytology / Q000187:drug effects*; D003864:Depression, Chemical; D004361:Drug Tolerance; D005071:Evoked Potentials / Q000187:drug effects; D006801:Humans; D008297:Male; D009021:Morphine Dependence / Q000503:physiopathology*; D009474:Neurons / Q000187:drug effects; D009842:Oligopeptides / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors
chemical_list: D009842:Oligopeptides