Evidence map›Paper›PMID 11834622›Full record

ArticleBritish journal of pharmacology2002

Involvement of mu- and kappa-, but not delta-, opioid receptors in the peristaltic motor depression caused by endogenous and exogenous opioids in the guinea-pig intestine.

Anaid Shahbazian, Akos Heinemann, Helmut Schmidhammer, Eckhard Beubler, Ulrike Holzer-Petsche, Peter Holzer

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.8field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 78 citations in OpenAlex.

  1. Trial
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  7. Comparison ofTurkish journal of anaesthesiology and reanimation · 2018
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  17. Pharmaceutical interventions facilitate premedication and prevent opioid-induced constipation and emesis in cancer patients.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2010
    Article
  18. Review
  19. New approaches to the treatment of opioid-induced constipation.European review for medical and pharmacological sciences · 2008
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Anaid ShahbazianDepartment of Experimental and Clinical Pharmacology, University of Graz, A-8010 Graz, Austria. peter.holzer@uni-graz.at
Akos Heinemann
Helmut Schmidhammer
Eckhard Beubler
Ulrike Holzer-Petsche
Peter Holzer
University of Graz · ATUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Opiates inhibit gastrointestinal propulsion, but it is not clear which opioid receptor types are involved in this action. For this reason, the effect of opioid receptor - selective agonists and antagonists on intestinal peristalsis was studied. Peristalsis in isolated segments of the guinea-pig small intestine was triggered by a rise of the intraluminal pressure and recorded via the intraluminal pressure changes associated with the peristaltic waves. Mu-opioid receptor agonists (DAMGO, morphine), kappa-opioid receptor agonists (ICI-204,448 and BRL-52,537) and a delta-opioid receptor agonist (SNC-80) inhibited peristalsis in a concentration-related manner as deduced from a rise of the peristaltic pressure threshold (PPT) and a diminution of peristaltic effectiveness. Experiments with the delta-opioid receptor antagonists naltrindole (30 nM) and HS-378 (1 microM), the kappa-opioid receptor antagonist nor-binaltorphimine (30 nM) and the mu-opioid receptor antagonist cyprodime (10 microM) revealed that the antiperistaltic effect of ICI-204,448 and BRL-52,537 was mediated by kappa-opioid receptors and that of morphine and DAMGO by mu-opioid receptors. In contrast, the peristaltic motor inhibition caused by SNC-80 was unrelated to delta-opioid receptor activation. Cyprodime and nor-binaltorphimine, but not naltrindole and HS-378, were per se able to stimulate intestinal peristalsis as deduced from a decrease in PPT. The results show that the neural circuits controlling peristalsis in the guinea-pig small intestine are inhibited by endogenous and exogenous opioids acting via mu- and kappa-, but not delta-, opioid receptors.

Indexed as

AnimalsDose-Response Relationship, DrugFemaleGuinea PigsIleumJejunumMaleNarcotic AntagonistsNarcoticsNeural InhibitionOpioid PeptidesPeristalsisReceptors, OpioidReceptors, Opioid, deltaReceptors, Opioid, kappaReceptors, Opioid, muNarcotic AntagonistsNarcoticsOpioid PeptidesReceptors, OpioidReceptors, Opioid, deltaReceptors, Opioid, kappaReceptors, Opioid, mu

Identifiers

PMID11834622
PMCPMC1573189
OpenAlexW2048941063

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.