Evidence map›Paper›PMID 18568022›Full record

ArticleNature neuroscience2008

Pungent agents from Szechuan peppers excite sensory neurons by inhibiting two-pore potassium channels.

Diana M Bautista, Yaron M Sigal, Aaron D Milstein, Jennifer L Garrison, Julie A Zorn, Pamela R Tsuruda, Roger A Nicoll, David Julius

Abstract read
In one paragraph

Article in Nature neuroscience, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 2% 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

105 citing papers in PubMed, 1 synthesis or guideline pooled it, 252 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Natural Compounds that Modulate Circadian Rhythms.Current topics in medicinal chemistry · 2025
    Review
  12. Alkamides inInternational journal of molecular sciences · 2024
    Review
  13. Article
  14. Article
  15. Use of Buzz Buttons to Illustrate Taste Perception Principles in a Sensation and Perception Laboratory Exercise.Journal of undergraduate neuroscience education : JUNE : a publication of FUN, Faculty for Undergraduate Neuroscience · 2024
    Article
  16. Research advances ofFrontiers in immunology · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Separation and Purification of Hydroxyl-α-Sanshool fromInternational journal of molecular sciences · 2023
    Article

45 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

8 authors at 1 institution in 1 country.

Diana M BautistaDepartment of Physiology, University of California, San Francisco, 600 16th St., San Francisco, California 94143-2140, USA.
Yaron M Sigal
Aaron D Milstein
Jennifer L Garrison
Julie A Zorn
Pamela R Tsuruda
Roger A Nicoll
David Julius
University of California, San Francisco · US

Funding

NEUROTRANSMITTER EFFECTS ON LOCAL NEURONAL CIRCUITSR37MH038256 · NIMH · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI NICOLL, ROGER A · 1987 to 2016
$9.0M
NIMH NIH HHS R37 MH038256
6 · The paper itself

Abstract

In traditional folk medicine, Xanthoxylum plants are referred to as 'toothache trees' because their anesthetic or counter-irritant properties render them useful in the treatment of pain. Psychophysical studies have identified hydroxy-alpha-sanshool as the compound most responsible for the unique tingling and buzzing sensations produced by Szechuan peppercorns or other Xanthoxylum preparations. Although it is generally agreed that sanshool elicits its effects by activating somatosensory neurons, the underlying cellular and molecular mechanisms remain a matter of debate. Here we show that hydroxy-alpha-sanshool excites two types of sensory neurons, including small-diameter unmyelinated cells that respond to capsaicin (but not mustard oil) as well as large-diameter myelinated neurons that express the neurotrophin receptor TrkC. We found that hydroxy-alpha-sanshool excites neurons through a unique mechanism involving inhibition of pH- and anesthetic-sensitive two-pore potassium channels (KCNK3, KCNK9 and KCNK18), providing a framework for understanding the unique and complex psychophysical sensations associated with the Szechuan pepper experience.

Indexed as

AmidesAnalysis of VarianceAnimalsBehavior, AnimalCapsaicinCells, CulturedElectric StimulationGanglia, SensoryGene Expression RegulationMembrane PotentialsMiceMice, KnockoutNeurofilament ProteinsNeurons, AfferentPatch-Clamp TechniquesPiper nigrumAmidesCapsaicinneurofilament protein HNeurofilament ProteinsPotassium Channel BlockersPotassium Channels, Tandem Pore DomainPotassium ChlorideReceptor, trkCsanshoolTransient Receptor Potential ChannelsTRPA1 Cation ChannelTrpa1 protein, mouseTRPV1 protein, mouseTRPV Cation Channels

Identifiers

PMID18568022
PMCPMC3072296
OpenAlexW2160024356

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.