Evidence map›Paper›PMID 17590514›Full record

ArticlePain2008

Homologous and heterologous desensitization of capsaicin and mustard oil responses utilize different cellular pathways in nociceptors.

Nikita B Ruparel, Amol M Patwardhan, Armen N Akopian, Kenneth M Hargreaves

Abstract read
In one paragraph

Article in Pain, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

81 citing papers in PubMed, 129 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Moringin, A Stable Isothiocyanate fromMolecules (Basel, Switzerland) · 2020
    Article
  12. Review
  13. Sensitization of small-diameter sensory neurons is controlled by TRPV1 and TRPA1 association.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review

21 more citing papers are in PubMed but not listed here.

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.

Nikita B RuparelDepartment of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA Department of Endodontics,University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
Amol M Patwardhan
Armen N Akopian
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
Cannabinoid Modulation of Capsaicin-Sensitive NociceptorsR01DA019585 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI HARGREAVES, KENNETH M · 2006 to 2010
$1.4M
Cannabinoid-Induced Desensitization of TRPV1 ReceptorsF32DE016500 · NIDCR · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI JESKE, NATHANIEL AARON · 2005 to 2006
$80k
NIDA NIH HHS R01 DA019585NIDA NIH HHS R01 DA19585NIDCR NIH HHS DE14318NIDCR NIH HHS F32 DE016500NIDCR NIH HHS T32 DE014318
6 · The paper itself

Abstract

The transient receptor potential channel subtypes V1 (TRPV1) and A1 (TRPA1) play a critical role in the development of hyperalgesia in inflammatory pain models. Although several studies in animals and humans have demonstrated that capsaicin (CAP), a TRPV1-specific agonist, and mustard oil (MO), a TRPA1 agonist, evoke responses that undergo functional cross-desensitization in various models, the mechanisms mediating this phenomenon are largely unknown. In the present study, we evaluated the mechanisms underlying homologous and heterologous desensitization between CAP and MO responses in peripheral nociceptors using an in vitro neuropeptide release assay from acutely isolated rat hindpaw skin preparation and in vivo behavioral assessments. The pretreatment with CAP or MO significantly inhibited (50-60%) both CAP- and MO-evoked CGRP release indicating homologous and heterologous desensitization using this assay. Further studies evaluating the requirement of calcium in these phenomena revealed that homologous desensitization of CAP responses was calcium-dependent while homologous desensitization of MO responses was calcium-independent. Moreover, heterologous desensitization of both CAP and MO responses was calcium-dependent. Further studies evaluating the role of calcineurin demonstrated that heterologous desensitization of CAP responses was calcineurin-dependent while heterologous desensitization of MO responses was calcineurin-independent. Homologous and heterologous desensitization of CAP and MO was also demonstrated using in vivo behavioral nocifensive assays. Taken together, these results indicate that TRPV1 and TRPA1 could be involved in a functional interaction that is regulated via different cellular pathways. The heterologous desensitization of these receptors and corresponding inhibition of nociceptor activity might have potential application as a therapeutic target for developing novel analgesics.

Indexed as

Afferent PathwaysAnimalsAnkyrinsCalcineurinCalcitonin Gene-Related PeptideCalcium ChannelsCalcium SignalingCapsaicinIrritantsMaleMustard PlantNeurons, AfferentNociceptorsPainPlant OilsRatsAnkyrinsCalcineurinCalcitonin Gene-Related PeptideCalcium ChannelsCapsaicinIrritantsmustard oilPlant OilsSensory System AgentsTRPA1 Cation ChannelTrpa1 protein, ratTRPC Cation ChannelsTrpv1 protein, ratTRPV Cation Channels

Identifiers

PMID17590514
PMCPMC2322862
OpenAlexW2110121007

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.