Document Detail


Differences in responses to nociceptive stimulation of the oral and aboral oesophagus.
MedLine Citation:
PMID:  12637055     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study examined the role of vagal innervation of the rat esophagus in nociception. Electromyographic recordings from neck muscles were used as indicators of pseudoaffective reactions in lightly anaesthetized animals; responses were obtained during mechanical (distension) and chemical (HCl) nociceptive stimulation of the upper cervical (4.5 cm from incisors) and midthoracic (7 cm from incisors) esophagus. Compared to midthoracic esophageal stimulation, stimulation of the upper esophagus produced more vigorous responses. Bilateral transections of the cervical vagus and superior laryngeal nerves led to a gradual diminution of responses to upper stimulation, while the same manoeuvre increased responses to lower esophagus stimulation. These results suggest a contribution of vagal afferents to pseudoaffective responses elicited by noxious stimulation of the upper esophagus.
Authors:
Thomas Hummel; Sibylle Barz; Tobias Hölscher; Winfried L Neuhuber
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia     Volume:  10     ISSN:  0967-5868     ISO Abbreviation:  J Clin Neurosci     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-03-14     Completed Date:  2004-10-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9433352     Medline TA:  J Clin Neurosci     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  223-5     Citation Subset:  IM    
Affiliation:
Department of Otorhinolaryngology, University of Dresden Medical School, Fetscherstr. 74, 01307 Dresden, Germany. thummel@rcs.urz.tu-dresden.de
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MeSH Terms
Descriptor/Qualifier:
Animals
Denervation
Electromyography / methods
Esophagus / innervation*,  physiology*
Laryngeal Nerves / physiology
Male
Muscles / innervation*
Nociceptors / physiology*
Physical Stimulation / methods
Rats
Rats, Sprague-Dawley
Stimulation, Chemical
Vagus Nerve / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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