Evidence map›Paper›PMID 20498712›Full record

ArticlePloS one2010

R-flurbiprofen reduces neuropathic pain in rodents by restoring endogenous cannabinoids.

Philipp Bishay, Helmut Schmidt, Claudiu Marian, Annett Häussler, Nina Wijnvoord, Simone Ziebell, Julia Metzner, Marco Koch, Thekla Myrczek, Ingo Bechmann and 5 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. 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
7.0field-weighted citation impact, top 3% 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, 81 citations in OpenAlex.

  1. Brain Mapping-Based Model of Δ(9)-Tetrahydrocannabinol Effects on Connectivity in the Pain Matrix.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Trial
  2. Article
  3. The Burning Pain Transcriptome in the Mouse Primary Somatosensory Cortex.International journal of molecular sciences · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Druggable Targets in Endocannabinoid Signaling.Advances in experimental medicine and biology · 2020
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Endocannabinoids as Guardians of Metastasis.International journal of molecular sciences · 2016
    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

15 authors at 3 institutions in 2 countries.

Philipp Bishaypharmazentrum frankfurt/ZAFES, Clinical Pharmacology, Goethe-University, Frankfurt, Germany.
Helmut Schmidt
Claudiu Marian
Annett Häussler
Nina Wijnvoord
Simone Ziebell
Julia Metzner
Marco Koch
Thekla Myrczek
Ingo Bechmann
Rohini Kuner
Michael Costigan
Faramarz Dehghani
Gerd Geisslinger
Irmgard Tegeder
Goethe University Frankfurt · DEHeidelberg University · DEMassachusetts General Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundR-flurbiprofen, one of the enantiomers of flurbiprofen racemate, is inactive with respect to cyclooxygenase inhibition, but shows analgesic properties without relevant toxicity. Its mode of action is still unclear. METHODOLOGY/PRINCIPAL

findingsWe show that R-flurbiprofen reduces glutamate release in the dorsal horn of the spinal cord evoked by sciatic nerve injury and thereby alleviates pain in sciatic nerve injury models of neuropathic pain in rats and mice. This is mediated by restoring the balance of endocannabinoids (eCB), which is disturbed following peripheral nerve injury in the DRGs, spinal cord and forebrain. The imbalance results from transcriptional adaptations of fatty acid amide hydrolase (FAAH) and NAPE-phospholipase D, i.e. the major enzymes involved in anandamide metabolism and synthesis, respectively. R-flurbiprofen inhibits FAAH activity and normalizes NAPE-PLD expression. As a consequence, R-Flurbiprofen improves endogenous cannabinoid mediated effects, indicated by the reduction of glutamate release, increased activity of the anti-inflammatory transcription factor PPARgamma and attenuation of microglia activation. Antinociceptive effects are lost by combined inhibition of CB1 and CB2 receptors and partially abolished in CB1 receptor deficient mice. R-flurbiprofen does however not cause changes of core body temperature which is a typical indicator of central effects of cannabinoid-1 receptor agonists.

conclusionOur results suggest that R-flurbiprofen improves the endogenous mechanisms to regain stability after axonal injury and to fend off chronic neuropathic pain by modulating the endocannabinoid system and thus constitutes an attractive, novel therapeutic agent in the treatment of chronic, intractable pain.

Indexed as

AmidohydrolasesAnalgesicsAnimalsBiomarkersCannabinoidsDisease Models, AnimalFatty Acid Amide HydrolasesFluorescent Antibody TechniqueFlurbiprofenGanglia, SpinalGlutamatesMiceMice, Inbred C57BLMicrogliaNociceptorsPainAmidohydrolasesAnalgesicsBiomarkersCannabinoidsFatty Acid Amide HydrolasesFlurbiprofenGlutamatesPhospholipase DReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2

Identifiers

PMID20498712
PMCPMC2869361
OpenAlexW2143807655

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.