Evidence map›Paper›PMID 21239112›Full record

ArticlePain2011

Role for peroxynitrite in sphingosine-1-phosphate-induced hyperalgesia in rats.

Tim Doyle, Amanda Finley, Zhoumou Chen, Daniela Salvemini

Abstract read
In one paragraph

Article in Pain, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.3field-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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. The therapeutic pipeline in migraine: What does the future hold?Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  3. Article
  4. Dysregulation of sphingolipid metabolism in pain.Frontiers in pharmacology · 2024
    Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Oxidative medicine and cellular longevity · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

4 authors at 1 institution in 1 country.

Tim DoyleDepartment of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Blvd, St. Louis, MO 63104, USA.
Amanda Finley
Zhoumou Chen
Daniela Salvemini
Saint Louis University · US

Funding

Role of peroxynitrite in morphine hyperalgesia and toleranceR01DA024074 · NIDA · SAINT LOUIS UNIVERSITY · PI SALVEMINI, DANIELA · 2008 to 2012
$1.7M
Role of ceramide in morphine hyperalgesia and toleranceR21DA023056 · NIDA · SAINT LOUIS UNIVERSITY · PI SALVEMINI, DANIELA · 2008 to 2009
$392k
NIDA NIH HHS R01 DA024074NIDA NIH HHS R21 DA023056
6 · The paper itself

Abstract

Sphingosine-1-phosphate (S1P) is an important mediator of inflammation recently shown in in vitro studies to increase the excitability of small-diameter sensory neurons, at least in part, via activation of the S1P(1) receptor subtype. Activation of S1PR(1) has been reported to increase the formation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived superoxide (O(2)(·-)) and nitric oxide synthase (NOS)-derived nitric oxide (NO). This process favors the formation of peroxynitrite (ONOO(-) [PN]), a potent mediator of hyperalgesia associated with peripheral and central sensitization. The aims of our study were to determine whether S1P causes peripheral sensitization and thermal hyperalgesia via S1PR(1) activation and PN formation. Intraplantar injection of S1P in rats led to a time-dependent development of thermal hyperalgesia that was blocked by the S1PR(1) antagonist W146, but not its inactive enantiomer W140. The hyperalgesic effects of S1P were mimicked by intraplantar injection of the well-characterized S1PR(1) agonist SEW2871. The development of S1P-induced hyperalgesia was blocked by apocynin, a NADPH oxidase inhibitor; N(G)-nitro-l-arginine methyl ester, a nonselective NOS inhibitor; and by the potent PN decomposition catalysts (FeTM-4-PyP(5+) and MnTE-2-PyP(5+)). Our findings provide mechanistic insight into the signaling pathways engaged by S1P in the development of hyperalgesia and highlight the contribution of the S1P(1) receptor-to-PN signaling in this process. Sphingosine-1-phosphate (S1P)-induced hyperalgesia is mediated by S1P1 receptor activation and mitigated by inhibition or decomposition of peroxynitrite, providing a target pathway for novel pain management strategies.

Indexed as

AcetophenonesAnilidesAnimalsDisease Models, AnimalDose-Response Relationship, DrugDrug InteractionsEnzyme ActivationEnzyme InhibitorsHyperalgesiaLysophospholipidsMaleMetalloporphyrinsNG-Nitroarginine Methyl EsterOrganophosphonatesOxadiazolesPeroxynitrous Acid3-amino-4-(3-hexylphenylamino)-4-oxobutylphosphonic acid5,10,15,20-tetrakis(N-methyl-4'-pyridyl)porphyrinato-iron(III)AcetophenonesacetovanilloneAnilidesEnzyme InhibitorsLysophospholipidsmanganese (III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrinMetalloporphyrinsNG-Nitroarginine Methyl EsterOrganophosphonatesOxadiazolesPeroxynitrous AcidReceptors, LysosphingolipidSEW2871Sphingosinesphingosine 1-phosphateThiophenes

Identifiers

PMID21239112
PMCPMC3039096
OpenAlexW2045583102

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.