title: Endogenous opioid peptides: review of physiological, pharmacological and clinical aspects.
mesh_terms: D000818:Animals; D001812:Blood-Brain Barrier; D001921:Brain / Q000502:physiology*; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000502:physiology; D006801:Humans; D009619:Nociceptors / Q000502:physiology; D010455:Peptides / Q000502:physiology*; D051381:Rats; D012559:Schizophrenia / Q000378:metabolism; D013312:Stress, Physiological / Q000378:metabolism; D009435:Synaptic Transmission; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D004745:Enkephalins; D010455:Peptides; D001615:beta-Endorphin