Evidence map›Paper›PMID 17250825›Full record

ArticleEuropean journal of pharmacology2007

Acute and chronic administration of the cannabinoid receptor agonist CP 55,940 attenuates tumor-evoked hyperalgesia.

Darryl T Hamamoto, Subhalakshmi Giridharagopalan, Donald A Simone

Open access · greenAbstract read
In one paragraph

Article in European journal of pharmacology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

32 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Heme Causes Pain in Sickle MiceAntioxidants & redox signaling · 2021
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. The neurobiology of cancer pain.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2014
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. The role of cannabinoids in prostate cancer: Basic science perspective and potential clinical applications.Indian journal of urology : IJU : journal of the Urological Society of India · 2012
    Article
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

Darryl T HamamotoDepartment of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA. hamam001@umn.edu
Subhalakshmi Giridharagopalan
Donald A Simone
University of Minnesota · US

Funding

CANNABINOID MODULATION OF HYPERALGESIAR01DA011471 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SIMONE, DONALD · 2000 to 2014
$4.2M
Neural Mechanisms of Cancer PainR01CA091007 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SIMONE, DONALD · 2001 to 2011
$2.3M
Chronic Cannabinoids, Tumor Growth and HyperalgesiaR03DA018231 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HAMAMOTO, DARRYL T · 2004 to 2005
$142k
NCI NIH HHS CA91007NCI NIH HHS R01 CA091007NIDA NIH HHS DA11471NIDA NIH HHS DA18231NIDA NIH HHS R01 DA011471NIDA NIH HHS R03 DA018231NIDA NIH HHS R03 DA018231-01NIDA NIH HHS R03 DA018231-02
6 · The paper itself

Abstract

Patients with cancer frequently report pain that can be difficult to manage. This study examined the antihyperalgesic effects of a cannabinoid receptor agonist, CP 55,940, in a murine model of cancer pain. Implantation of fibrosarcoma cells into and around the calcaneous bone in mice produced mechanical hyperalgesia (decreased paw withdrawal thresholds and increased frequency of paw withdrawals). On day 13 after implantation, mechanical hyperalgesia, nociception, and catalepsy were assessed. Mice were randomly assigned to receive CP 55,940 (0.01-3 mg/kg, i.p.) or vehicle and behavioral measures were redetermined. CP 55,940 dose-dependently attenuated tumor-evoked mechanical hyperalgesia. To examine the effect of catalepsy on the antihyperalgesic effect of CP 55,940, mice with tumor-evoked hyperalgesia were pretreated with the dopamine agonist apomorphine prior to administration of CP 55,940. Apomorphine attenuated the cataleptic effect of CP 55,940 but did not attenuate its antihyperalgesic effect. In a separate group of mice with tumor-evoked hyperalgesia, administration of the dopamine antagonist spiperone produced catalepsy that was approximately 2.5 fold greater than that produced by CP 55,490. Whereas this dose of CP 55,940 completely reversed tumor-evoked mechanical hyperalgesia, spiperone only attenuated mechanical hyperalgesia by approximately 35%. Thus, the cataleptic effects of CP 55,940 did not fully account for its antihyperalgesic effect. The antihyperalgesic effect of CP 55,940 was mediated via the cannabinoid CB1 but not CB2 receptor. Finally, repeated administration of CP 55,940 produced a short-term and a longer-term attenuation of tumor-evoked hyperalgesia. These results suggest that cannabinoids may be a useful alternative or adjunct therapy for treating cancer pain.

Indexed as

Cannabinoid Receptor AgonistsAnimalsApomorphineBenzoxazinesCatalepsyCyclohexanesCyclohexanolsHyperalgesiaMaleMiceMice, Inbred C3HMorpholinesNaphthalenesPhenolsReceptors, CannabinoidSarcoma, Experimental3-(2-hydroxy-4-(1,1-dimethylheptyl)phenyl)-4-(3-hydroxypropyl)cyclohexanol(3R)-((2,3-dihydro-5-methyl-3-((4-morpholinyl)methyl)pyrrolo-(1,2,3-de)-1,4-benzoxazin-6-yl)(1-naphthalenyl))methanoneApomorphineBenzoxazinesCannabinoid Receptor AgonistsCyclohexanesCyclohexanolsMorpholinesNaphthalenesPhenolsReceptors, Cannabinoid

Identifiers

PMID17250825
PMCPMC1995024
OpenAlexW2169906005

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.