HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) All Versions of this Article: 293/6/G1190    most recent 00092.2007v1 Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Yin, J. Articles by Chen, J. D. Search for Related Content PubMed PubMed Citation Articles by Yin, J. Articles by Chen, J. D.

NEUROREGULATION AND MOTILITY

Excitatory effects of synchronized intestinal electrical stimulation on small intestinal motility in dogs

¹Division of Gastroenterology, University of Texas Medical Branch, Galveston, Texas; ²Transtimulation Research, Oklahoma City, Oklahoma; ³Veterans Research and Education Foundation, Veterans Affairs Medical Center, Oklahoma City, Oklahoma

Submitted 20 February 2007 ; accepted in final form 2 October 2007

The aim of this study was to investigate effects of synchronized intestinal electrical stimulation (SIES) on small intestinal motility in dogs. Seventeen dogs were equipped with a duodenal cannula for the measurement of small bowel motility using manometry; an additional cannula was equipped in six of the dogs with 1.5 m distal to the first one for the measurement of small intestinal transit. Two pairs of bipolar electrodes were implanted on the small intestinal serosa with an interval of 5 cm; glucagon was used to induce postprandial intestinal hypomotility. Eleven dogs were used for the assessment of the small intestinal contractions in both fasting and fed states. The other six dogs were used for the measurement of small intestinal transit. We found that 1) SIES induced small intestinal contractions during phase I of the migrating motor complex (MMC) (contractile index or CI: 5.2 ± 0.6 vs. 10.3 ± 0.7, P = 0.003); 2) in the fed state, SIES significantly improved glucagon-induced small intestinal postprandial hypomotility (CI: 3.4 ± 0.5 vs. 6.0 ± 0.3, P = 0.03); 3) SIES significantly accelerated small intestinal transit delayed by glucagon (70.4 ± 3.1 vs. 44.5 ± 3.1 min, P < 0.01); 4) there was a negative correlation between the CI and transit time (r = –0.427, P = 0.048); and 5) the excitatory effect of SIES was blocked by atropine. SIES may have a therapeutic potential for treating patients with small intestinal disorders.

small intestinal transit; glucagon; atropine