title: Species differences in the distribution of nitric oxide synthase in brain stem regions that regulate sympathetic activity.
abstract: The distribution of nitric oxide synthases (NOS) in the lower brain stem was studied by NADPH-diaphorase staining with emphasis on the nucleus of the solitary tract and the ventrolateral medulla. The order of NOS density was hamster > rabbit = rat > mouse > guinea-pig > cat with little variation within species or between regions. This heterogeneity may partly explain qualitatively and quantitatively variable effects of NO on sympathetic activity in different species.
authors.affiliation: I. Physiologisches Institut, Universität Heidelberg, Germany. zanzing@novsrv1.pio1.uni-heidelberg.de
authors.forename: J
authors.initials: J
authors.lastname: Zanzinger
authors.forename: H
authors.initials: H
authors.lastname: Seller
mesh_terms: D000818:Animals; D001933:Brain Stem / Q000201:enzymology* / Q000502:physiology*; D002415:Cats; D006224:Cricetinae; D006168:Guinea Pigs; D051379:Mice; D019001:Nitric Oxide Synthase / Q000378:metabolism* / Q000502:physiology*; D011817:Rabbits; D051381:Rats; D013045:Species Specificity; D013564:Sympathetic Nervous System / Q000201:enzymology* / Q000502:physiology*
chemical_list: D019001:Nitric Oxide Synthase