Evidence map›Paper›PMID 20230457›Full record

ReviewPain practice : the official journal of World Institute of Pain

Transient receptor potential channels in pain and inflammation: therapeutic opportunities.

Mark A Schumacher

Open access · greenAbstract readHistorical ArticleReview
In one paragraph

Review in Pain practice : the official journal of World Institute of Pain. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Minor cannabinoids CBD, CBG, CBN, and CBC differentially modulate sensory neuron activation.The Journal of pharmacology and experimental therapeutics · 2026
    Article
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  7. Thermosensory Roles of G Protein-Coupled Receptors and Other Cellular Factors in Animals.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Capsaicin and 1,25-Dihydroxyvitamin DAnimals : an open access journal from MDPI · 2023
    Article
  13. Second-degree burn induced by high-concentration topical capsaicin with mobility sequelae: A case report.Pain practice : the official journal of World Institute of Pain · 2023
    Article
  14. Therapeutic activity of lipoxin AFrontiers in immunology · 2023
    Article
  15. Review
  16. Review
  17. Mechanisms of pain in sickle cell disease.British journal of pain · 2021
    Article
  18. Analgesia for Sheep in Commercial Production: Where to Next?Animals : an open access journal from MDPI · 2021
    Review
  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

1 author at 1 institution in 1 country.

Mark A SchumacherDepartment of Anesthesia and Perioperative Care, University of California, San Francisco, California 94143-0427, USA. schumacm@anesthesia.ucsf.edu
University of California, San Francisco · US

Funding

CAPSAICIN RECEPTOR SUBTYPES IN PAIN TRANSDUCTIONR01NS038737 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SCHUMACHER, MARK A · 1999 to 2012
$2.6M
NINDS NIH HHS NS038737NINDS NIH HHS R01 NS038737
6 · The paper itself

Abstract

In ancient times, physicians had a limited number of therapies to provide pain relief. Not surprisingly, plant extracts applied topically often served as the primary analgesic plan. With the discovery of the capsaicin receptor (transient receptor potential cation channel, subfamily V, member 1 [TRPV1]), the search for "new" analgesics has returned to compounds used by physicians thousands of years ago. One such compound, capsaicin, couples the paradoxical action of nociceptor activation (burning pain) with subsequent analgesia following repeat or high-dose application. Investigating this "paradoxical" action of capsaicin has revealed several overlapping and complementary mechanisms to achieve analgesia including receptor desensitization, nociceptor dysfunction, neuropeptide depletion, and nerve terminal destruction. Moreover, the realization that TRPV1 is both sensitized and activated by endogenous products of inflammation, including bradykinin, H+, adenosine triphosphate, fatty acid derivatives, nerve growth factor, and trypsins, has renewed interest in TRPV1 as an important site of analgesia. Building on this foundation, a new series of preclinical and clinical studies targeting TRPV1 has been reported. These include trials using brief exposure to high-dose topical capsaicin in conjunction with prior application of a local anesthetic. Clinical use of resiniferatoxin, another ancient but potent TRPV1 agonist, is also being explored as a therapy for refractory pain. The development of orally administered high-affinity TRPV1 antagonists holds promise for pioneering a new generation of analgesics capable of blocking painful sensations at the site of inflammation and tissue injury. With the isolation of other members of the TRP channel family such as TRP cation channel, subfamily A, member 1, additional opportunities are emerging in the development of safe and effective analgesics.

Indexed as

Pain ManagementAnalgesicsAnimalsHistory, AncientHumansInflammationModels, MolecularNociceptorsPainTransient Receptor Potential ChannelsAnalgesicsTransient Receptor Potential Channels

Identifiers

PMID20230457
PMCPMC3112370
OpenAlexW2123756595

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.