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Subdiaphragmatic vagotomy induces NADPH diaphorase in the rat dorsal motor nucleus of the vagus

Authors
 Jeong Won Jahng  ;  Dong Goo Kim  ;  Thomas A Houpt 
Citation
 YONSEI MEDICAL JOURNAL, Vol.42(2) : 215-219, 2001 
Journal Title
 YONSEI MEDICAL JOURNAL 
ISSN
 0513-5796 
Issue Date
2001
MeSH
Animals ; Fourth Ventricle/cytology ; Fourth Ventricle/enzymology* ; Fourth Ventricle/physiology* ; Male ; Motor Neurons/enzymology ; NADPH Dehydrogenase/metabolism* ; Rats ; Rats, Sprague-Dawley ; Vagotomy/methods* ; Vagus Nerve/physiology*
Keywords
Axotomy ; motor neurons ; nucleus ambiguus ; nitric oxide synthase
Abstract
Axotomy of the vagal motor neurons by cervical vagotomy induces NADPH diaphorase staining due to increased nitric oxide synthase expression in both the rat dorsal motor nucleus and nucleus ambiguous; furthermore, cerical vagotomy leads to cell death of the dorsal motor nucleus cells. Subdiaphragmatic vagotomy axotomizes the vagal motor cells further from the brainstem than cervical vagotomy, and cuts the fibers running only to the abdominal viscera. Here we report that subdiaphragmatic vagotomy is sufficient to induce NADPH diaphorase staining in the dorsal motor nucleus but does not induce staining in the nucleus ambiguus. Because the neurons of the dorsal motor nucleus do not undergo cell death after subdiaphragmatic vagotomy and are able to re-enervate the gut, the increased nitric oxide synthase expression after distal axotomy may be related more to regeneration than degeneration.
Files in This Item:
T200102745.pdf Download
DOI
10.3349/ymj.2001.42.2.215
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pharmacology (약리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Goo(김동구)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/142660
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