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.
journal_name
Yonsei Med Jjournal_title
Yonsei medical journalauthors
Jahng JW,Kim DG,Houpt TAdoi
10.3349/ymj.2001.42.2.215keywords:
subject
Has Abstractpub_date
2001-04-01 00:00:00pages
215-9issue
2eissn
0513-5796issn
1976-2437journal_volume
42pub_type
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