Evidence map›Paper›PMID 17038422›Full record

ArticleThe Journal of physiology2007

TRPV1 is a novel target for omega-3 polyunsaturated fatty acids.

José A Matta, Rosa L Miyares, Gerard P Ahern

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. TRPV1 corneal neuralgia mutation: Enhanced pH response, bradykinin sensitization, and capsaicin desensitization.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Review
  8. Review
  9. A journey from molecule to physiology andFrontiers in pharmacology · 2023
    Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. TRPV1: Structure, Endogenous Agonists, and Mechanisms.International journal of molecular sciences · 2020
    Review
  16. Review
  17. Review
  18. Adaptive thermogenesis by dietary n-3 polyunsaturated fatty acids: Emerging evidence and mechanisms.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2019
    Review
  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

3 authors at 1 institution in 1 country.

José A MattaDepartment of Pharmacology, Georgetown University, Washington, DC 20007, USA.
Rosa L Miyares
Gerard P Ahern
Georgetown University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Omega-3 (n-3) fatty acids are essential for proper neuronal function, and they possess prominent analgesic properties, yet their underlying signalling mechanisms are unclear. Here we show that n-3 fatty acids interact directly with TRPV1, an ion channel expressed in nociceptive neurones and brain. These fatty acids activate TRPV1 in a phosphorylation-dependent manner, enhance responses to extracellular protons, and displace binding of the ultrapotent TRPV1 ligand [3H]resiniferatoxin. In contrast to their agonistic properties, n-3 fatty acids competitively inhibit the responses of vanilloid agonists. These actions occur in mammalian cells in the physiological concentration range of 1-10 mum. Significantly, docosahexaenoic acid exhibits the greatest efficacy as an agonist, whereas eicosapentaenoic acid and linolenic acid are markedly more effective inhibitors. Similarly, eicosapentaenoic acid but not docosahexaenoic acid profoundly reduces capsaicin-evoked pain-related behaviour in mice. These effects are independent of alterations in membrane elasticity because the micelle-forming detergent Triton X-100 only minimally affects TRPV1 properties. Thus, n-3 fatty acids differentially regulate TRPV1 and this form of signalling may contribute to their biological effects. Further, these results suggest that dietary supplementation with selective n-3 fatty acids would be most beneficial for the treatment of pain.

Indexed as

AnimalsBinding, CompetitiveCalciumCapsaicinCell LineCell MembraneDiterpenesFatty Acids, Omega-3Fatty Acids, Omega-6FemaleHumansHydrogen-Ion ConcentrationLinoleic AcidMaleMembrane FluidityMembrane PotentialsCalciumCapsaicincapsazepineDiterpenesFatty Acids, Omega-3Fatty Acids, Omega-6Linoleic AcidresiniferatoxinRNA, ComplementaryTrpv1 protein, ratTRPV Cation Channels

Identifiers

PMID17038422
PMCPMC2075157
OpenAlexW2164340586

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.