title: [Localization of nitric oxide synthase in the chicken vestibular system].
abstract: OBJECTIVE
  To locate nitric oxide synthase (NOS) in the chicken vestibular system.
  
  
  METHODS
  The frozen section were processed for NADPH-d histochemistry in a solution containing NADPH and nitroblue tetnazolium (NBT) to demonstrate NOS positive reactivity.
  
  
  RESULTS
  NOS positive staining, black-blue in color, was seen at the nerve ending, nerve fibers of the utricul and saculla and ampiculium. Ganglion cells had different activity. The shape of the cells seems to be round or oral.
  
  
  CONCLUSIONS
  Collectively, data indicate the presence of active NOS in these tissue and suggest modulation of vestibular neurotransmission by nitric oxide.
authors.affiliation: Department of Otolaryngology, Red Cross Hospital, Shenzhen 518035.
authors.forename: Guohui
authors.initials: G
authors.lastname: Nie
authors.forename: Jibao
authors.initials: J
authors.lastname: Wang
mesh_terms: D000818:Animals; D002645:Chickens; D005260:Female; D008297:Male; D009569:Nitric Oxide / Q000494:pharmacology*; D019001:Nitric Oxide Synthase / Q000032:analysis*; D014722:Vestibule, Labyrinth / Q000201:enzymology*
chemical_list: D009569:Nitric Oxide; D019001:Nitric Oxide Synthase