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Species differences in the distribution of nitric oxide synthase in brain stem regions that regulate sympathetic
1I. Physiologisches Institut, Universität Heidelberg, Germany. zanzing@novsrv1.pio1.uni-heidelberg.de
Brain Research
|August 1, 1997
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.