title: Endogenous opioids: biology and function.
mesh_terms: D000313:Adrenal Medulla / Q000378:metabolism; D000698:Analgesia; D000818:Animals; D001519:Behavior / Q000502:physiology; D001794:Blood Pressure; D001921:Brain / Q000378:metabolism; D002320:Cardiovascular Physiological Phenomena; D004361:Drug Tolerance; D004702:Endocrine Glands / Q000378:metabolism; D004723:Endorphins / Q000235:genetics / Q000502:physiology*; D004745:Enkephalins / Q000378:metabolism; D005260:Female; D006801:Humans; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology; D010146:Pain; D010902:Pituitary Gland / Q000378:metabolism; D010908:Pituitary Hormones, Anterior / Q000378:metabolism; D011247:Pregnancy; D011333:Pro-Opiomelanocortin; D011498:Protein Precursors / Q000378:metabolism; D011499:Protein Processing, Post-Translational; D011957:Receptors, Opioid / Q000502:physiology; D012769:Shock / Q000503:physiopathology; D013116:Spinal Cord / Q000378:metabolism; D013312:Stress, Physiological / Q000503:physiopathology; D014018:Tissue Distribution
chemical_list: D004723:Endorphins; D004745:Enkephalins; D010908:Pituitary Hormones, Anterior; D011498:Protein Precursors; D011957:Receptors, Opioid; C029992:proenkephalin; D009270:Naloxone; D011333:Pro-Opiomelanocortin; D009020:Morphine; C033660:preproenkephalin