Evidence map›Paper›PMID 19063879›Full record

ArticleEuropean journal of pharmacology2009

Peripheral delta opioid receptors require priming for functional competence in vivo.

Matthew P Rowan, Nikita B Ruparel, Amol M Patwardhan, Kelly A Berg, William P Clarke, Kenneth M Hargreaves

Abstract read
In one paragraph

Article in European journal of pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

42 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
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  10. Alleviating pain with delta opioid receptor agonists: evidence from experimental models.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Review
  11. Article
  12. Making Sense of Pharmacology: Inverse Agonism and Functional Selectivity.The international journal of neuropsychopharmacology · 2018
    Review
  13. Allosterism withinMolecular pharmacology · 2018
    Article
  14. Article
  15. Article
  16. A PTEN-Regulated Checkpoint Controls Surface Delivery of δ Opioid Receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  17. Constitutive Desensitization of Opioid Receptors in Peripheral Sensory Neurons.The Journal of pharmacology and experimental therapeutics · 2016
    Article
  18. Article
  19. Article
  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 1 institution in 1 country.

Matthew P RowanDepartment of Pharmacology, University of Texas Health Science Center, San Antonio, TX 78229-3900 USA.
Nikita B Ruparel
Amol M Patwardhan
Kelly A Berg
William P Clarke
Kenneth M Hargreaves
The University of Texas Health Science Center at San Antonio · US

Funding

Institutional Research Training GrantT32DE014318 · NIDCR · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Kenneth M Hargreaves · 2002 to 2026
$12.1M
Peripheral Opioid Regulation: Nociceptors & Pain in ManP01DA016719 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI HARGREAVES, KENNETH M · 2003 to 2007
$3.7M
NIDA NIH HHS P01 DA016719NIDA NIH HHS P01DA016719NIDCR NIH HHS T32 DE014318NIDCR NIH HHS T32DE14318
6 · The paper itself

Abstract

Although centrally acting opioid analgesics produce profound antinociception under basal conditions, the antinociceptive properties of peripherally restricted opioid analgesics are generally only detectable after inflammation or injection of inflammatory mediators. Despite considerable research, the cellular mechanisms regulating the functional competence of peripheral opioid receptor systems for inhibition of nociception remain unclear. Recent work has demonstrated that brief pre-treatment (priming) with bradykinin, arachidonic acid, protease-activated receptor-2 agonists, or direct activators of protein kinase C (PKC) are capable of inducing the functional competence of the opioid receptor system in cultures of primary sensory neurons in vitro. Here we report that the peripheral delta opioid receptor system also requires PKC-dependent priming to inhibit prostaglandin E(2) (PGE(2))-induced thermal allodynia in the rat. Peripheral hindpaw injection of [D-Pen(2,5)]-enkephalin (DPDPE), a selective delta opioid receptor agonist, did not alter PGE(2)-induced thermal allodynia. However, following priming (15 min) with bradykinin or arachidonic acid, DPDPE produced a significant reduction in allodynia that was antagonist reversible, peripherally restricted, and exhibited a typical dose-response relationship. Furthermore, the bradykinin priming effect was blocked by the PKC inhibitors, bisindolylmaleimide I and chelerythrine. Collectively, these data support prior in vitro findings that, although present on primary sensory neurons, peripheral opioid receptor systems are functionally inactive under basal conditions and require activation of a PKC- and arachidonic acid-dependent signaling pathway to develop functional competence in vivo.

Indexed as

Analgesics, OpioidAnimalsArachidonic AcidBradykininDinoprostoneEnkephalin, D-Penicillamine (2,5)-MalePeripheral Nervous SystemProtein Kinase CRatsRats, Sprague-DawleyReceptors, Opioid, deltaSignal TransductionAnalgesics, OpioidArachidonic AcidBradykininDinoprostoneEnkephalin, D-Penicillamine (2,5)-Protein Kinase CReceptors, Opioid, delta

Identifiers

PMID19063879
PMCPMC2635024
OpenAlexW1999830266

What OpenQuestion holds

Textmetadata
LicenceTDM
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.