Effect of feeding on myoelectric activity of the sphincter of Oddi and the gastrointestinal tract in the opossum

The effect of different foods on the myoelectric activity of the sphincter of Oddi and gastrointestinal tract was evaluated in the opossum. Gallbladder pressure was also recorded. Feeding fat and mixed food resulted in the greatest incidence of spike activity in the duodenum and jejunum, followed by...

Full description

Saved in:
Bibliographic Details
Published in:Digestive diseases and sciences 1986-02, Vol.31 (2), p.202-207
Main Authors: COELHO, J. C. U, GOUMA, D. J, MOODY, F. G, SCHLEGEL, J. F
Format: Article
Language:English
Subjects:
Ampulla of Vater - physiology
Animals
Biological and medical sciences
Dietary Carbohydrates - pharmacology
Dietary Fats - pharmacology
Dietary Proteins - pharmacology
Digestive System Physiological Phenomena
Electrodes, Implanted
Electromyography
Food
Fundamental and applied biological sciences. Psychology
Gallbladder - physiology
Gastrointestinal Motility
Liver. Bile. Biliary tracts
Muscle Contraction
Opossums - physiology
Pressure
Sphincter of Oddi - physiology
Vertebrates: digestive system
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of different foods on the myoelectric activity of the sphincter of Oddi and gastrointestinal tract was evaluated in the opossum. Gallbladder pressure was also recorded. Feeding fat and mixed food resulted in the greatest incidence of spike activity in the duodenum and jejunum, followed by protein. The lowest incidence of slow waves with spikes in the duodenum and jejunum followed feeding of carbohydrates (P less than 0.01). Likewise, the lowest spike activity in the sphincter of Oddi was observed after carbohydrate feeding (P less than 0.05). There was no significant difference in the incidence of spike potentials in the sphincter of Oddi when fat, protein, or mixed food was fed. No significant change in gallbladder pressure during fasting and following feeding of different aliments was observed. We concluded that there is a correlation between the frequency of spike potentials in the sphincter of Oddi and in the small bowel following feeding. The duration of the fed pattern for each type of food correlated with the number of spikes in the sphincter of Oddi and gastrointestinal tract.
ISSN:0163-2116
1573-2568
DOI:10.1007/BF01300709