PMID: 8946057Nov 22, 1996Paper

Effects of immunological sympathectomy on postnatal peptide expression in the rat adrenal medulla

Brain Research. Developmental Brain Research
H HolgertT Hökfelt

Abstract

Administration of monoclonal antibodies against acetylcholinesterase (AChE-mabs) to adult rats leads to a selective degeneration of the acetylcholine esterase-(AChE), choline acetyltransferase-(ChAT) and enkephalin-(ENK) positive preganglionic fibres of the splanchnic nerve innervating the adrenal gland. Here we used this approach of immunological sympathectomy, performed at postnatal day 2 (P2), in an attempt to study the development role of the preganglionic fibres in the adrenal medulla in more detail. Analysis was performed at P16 and revealed that the effect of this treatment varied considerably between animals, as judged by the number of remaining AChE-, ChAT- and ENK-positive fibres. The number and intensity especially of ENK fibres in the adrenal medulla correlated negatively with the number and staining intensity of ENK-immunoreactive chromaffin cells, suggesting a 'dose-response' relationship. Thus, the high early postnatal levels of ENK-like immunoreactivity generally persisted in chromaffin cells of adrenals with a successful immunosympathectomy, i.e. in those adrenals that lacked AChE-, ChAT- and ENK-positive nerves. In contrast, calcitonin gene-related peptide-like immunoreactivity in nerves and chromaffin cells w...Continue Reading

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Citations

Jul 18, 1997·Brain Research. Developmental Brain Research·S O Franklin
Sep 23, 2014·Acta histochemica·Mohamed A Elnasharty, Ahmed Sayed-Ahmed
Nov 21, 2013·Journal of Anatomy·Kanae KatoYukio Oomori

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