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Title: Effects of stress on gastrointestinal function: interactions of neural and endocrine systems in mediating stress-induced intestinal dysfunction in rats

Abstract

The etiology of stress-induced intestinal dysfunction is completely unresolved, and the lack of an appropriate animal model has hindered studies of causality. We compared a number of stressors and their resultant effects on intestinal transit, a measure of the propulsive motor activity of the gut, in the rat. We found that the response of the intestine to stress, and the neural systems activated by stress, were dependent on the type and duration of stress, as well as the animal strain, and gender. We developed a model, acute wrapping restraint stress, to fully characterize the effects of stress on intestinal transit. Wrap restraint stress is a nonulcerogenic model in which rats are subjected to acute restraint by wrapping them in a harness of paper tape to restrict, but not prevent movement of the upper body and forelimbs. Transit was evaluated by the geometric center method, in which a radiomarker (/sup 51/Cr) is instilled directly into the proximal duodenum and proximal colon via a surgically placed intestinal cannula, in fasted, adult female Sprague Dawley rats.

Authors:
Publication Date:
Research Org.:
Arizona Univ., Tucson (USA)
OSTI Identifier:
6824596
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; DIGESTIVE SYSTEM DISEASES; ETIOLOGY; GASTROINTESTINAL TRACT; BIOLOGICAL STRESS; BIOLOGICAL MODELS; CHROMIUM 51; LARGE INTESTINE; NERVOUS SYSTEM; RATS; TRACER TECHNIQUES; ANIMALS; BETA DECAY RADIOISOTOPES; BODY; CHROMIUM ISOTOPES; DIGESTIVE SYSTEM; DISEASES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; INTESTINES; ISOTOPE APPLICATIONS; ISOTOPES; MAMMALS; NUCLEI; ORGANS; RADIOISOTOPES; RODENTS; VERTEBRATES; 550901* - Pathology- Tracer Techniques

Citation Formats

Williams, C L. Effects of stress on gastrointestinal function: interactions of neural and endocrine systems in mediating stress-induced intestinal dysfunction in rats. United States: N. p., 1987. Web.
Williams, C L. Effects of stress on gastrointestinal function: interactions of neural and endocrine systems in mediating stress-induced intestinal dysfunction in rats. United States.
Williams, C L. 1987. "Effects of stress on gastrointestinal function: interactions of neural and endocrine systems in mediating stress-induced intestinal dysfunction in rats". United States.
@article{osti_6824596,
title = {Effects of stress on gastrointestinal function: interactions of neural and endocrine systems in mediating stress-induced intestinal dysfunction in rats},
author = {Williams, C L},
abstractNote = {The etiology of stress-induced intestinal dysfunction is completely unresolved, and the lack of an appropriate animal model has hindered studies of causality. We compared a number of stressors and their resultant effects on intestinal transit, a measure of the propulsive motor activity of the gut, in the rat. We found that the response of the intestine to stress, and the neural systems activated by stress, were dependent on the type and duration of stress, as well as the animal strain, and gender. We developed a model, acute wrapping restraint stress, to fully characterize the effects of stress on intestinal transit. Wrap restraint stress is a nonulcerogenic model in which rats are subjected to acute restraint by wrapping them in a harness of paper tape to restrict, but not prevent movement of the upper body and forelimbs. Transit was evaluated by the geometric center method, in which a radiomarker (/sup 51/Cr) is instilled directly into the proximal duodenum and proximal colon via a surgically placed intestinal cannula, in fasted, adult female Sprague Dawley rats.},
doi = {},
url = {https://www.osti.gov/biblio/6824596}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Thesis/Dissertation:
Other availability
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