title: Endogenous opioid peptides and human reproduction.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D004399:Dynorphins / Q000032:analysis; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000032:analysis; D006801:Humans; D009490:Neurosecretory Systems / Q000502:physiology; D009619:Nociceptors / Q000502:physiology; D010920:Placenta / Q000032:analysis; D011333:Pro-Opiomelanocortin / Q000032:analysis; D011498:Protein Precursors / Q000032:analysis; D011957:Receptors, Opioid / Q000502:physiology; D012098:Reproduction
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011498:Protein Precursors; D011957:Receptors, Opioid; C036448:pre-prodynorphin; C029992:proenkephalin; D011333:Pro-Opiomelanocortin; D004399:Dynorphins; C033660:preproenkephalin