International Journal of Medical Sciences

Impact factor
2.399

24 October 2017

ISSN 1449-1907 News feeds of published articles

My Manuscript | My Account

Journal of Genomics now in PubMed/PubMed Central. Submit manuscript...

Journal of Biomedicinenew

Theranostics

Journal of Cancer

Oncomedicine

International Journal of Biological Sciences

Journal of Genomics

Journal of Bone and Joint Infection (JBJI)

Nanotheranostics

PubMed Central Indexed in Journal Impact Factor

Int J Med Sci 2015; 12(11):848-852. doi:10.7150/ijms.12616

Research Paper

Divergent Effect of Dezocine, Morphine and Sufentanil on Intestinal Motor Function in Rats

Xiaocui Bian 1*, Renlong Zhou 1*, Yuting Yang 1*, Peiying Li 1, Yannan Hang 1, Youmin Hu 2, Liqun Yang 1✉, Daxiang Wen 1✉

1. Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200001, China;
2. Laboratory Room for Physiology, Pathophysiology & Pharmacology, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China
* Drs Bian X, Zhou R and Yang Y contributed equally to this work

Abstract

Background: Opioid induced bowel dysfunction is the most common side effect of preoperatively administrated morphine, fentanyl and its derivative. However, the influence of dezocine on intestinal mobility is rarely reported. This study was designed to investigate the effects of dezocine, morphine and sufentanil on both intestinal smooth muscle contraction and propulsion in rats.

Methods: Contractile tension and frequency of isolated rat small intestine smooth muscle were measured using tension transducer after incubation with different concentrations of dezocine, morphine and sufentanil. The propulsive rate of methylene blue in rat intestinal tract was measured 30 minutes after intraperitoneal injection of morphine, sufentanil and dezocine. Percent of change in contractile tension and contraction frequency compared to baseline level were calculated to evaluate muscle contraction. Propulsive rate of methylene blue was calculated as the percentage of methylene blue moving distance in intestinal tract compared to the length of the small intestine.

Results: Morphine and sufentanil significantly increased the contractile tension of isolated small intestine smooth muscle at high doses. The contraction frequency did not change significantly among the 3 tested doses. Increasing the dose of dezocine from 1.7 mg.L-1 to 10.2 mg.L-1 did not change either the contractile tension or the contraction frequency. The propulsive rate of methylene blue in intestinal tract was significantly decreased after the treatment with morphine, sufentanil and dezocine (45.6%, 43.7%, and 42.1% respectively) compared to control group(57.1%), while the difference among the 3 drug groups were not significant.

Conclusion: Morphine and sufentanil may dose dependently increase the contractile tension and contraction ability of isolated rat small intestine smooth muscle, while dezocine has no significant effect on intestine smooth muscle contraction. However, all these opioids might impair small intestinal propulsion.

Keywords: dezocine, contractile tension, propulsive motility, small smooth muscle intestine

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
How to cite this article:
Bian X, Zhou R, Yang Y, Li P, Hang Y, Hu Y, Yang L, Wen D. Divergent Effect of Dezocine, Morphine and Sufentanil on Intestinal Motor Function in Rats. Int J Med Sci 2015; 12(11):848-852. doi:10.7150/ijms.12616. Available from http://www.medsci.org/v12p0848.htm