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Neuroreport. 1992 Apr;3(4):333-6.

Colocalization of nitric oxide synthase and NADPH-diaphorase in cultured myenteric neurones.

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  • 1Department of Anatomy and Developmental Biology, University College, London, UK.

Abstract

Nitric oxide synthase immunoreactivity and NADPH-diaphorase activity were examined in explant culture preparations of the myenteric plexus from beneath the taenia coli of the guinea-pig caecum. Nitric oxide synthase immunoreactive neurones formed approximately one third of the total neuronal population. NADPH-diaphorase positive neurones, demonstrated histochemically, constituted a similar proportion of the total number of neurones. Immunocytochemistry and NADPH-diaphorase histochemistry performed on the same preparations revealed that all nitric oxide synthase immunoreactive neurones expressed NADPH-diaphorase activity. This histochemical evidence is consistent with the view that nitric oxide may act as a regulatory agent in the guinea-pig caecum.

PMID:
1381231
[PubMed - indexed for MEDLINE]
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