title: Are the enkephalins involved in Parkinson's disease? Clinical and neuroendocrine response to naloxone administration.
mesh_terms: D000368:Aged; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009270:Naloxone / Q000494:pharmacology* / Q000627:therapeutic use; D010300:Parkinson Disease / Q000097:blood / Q000188:drug therapy / Q000503:physiopathology*; D011388:Prolactin / Q000097:blood; D013997:Time Factors
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009270:Naloxone; D011388:Prolactin