Evidence map›Paper›PMID 20547126›Full record

ArticleNeuron2010

A gain-of-function mutation in TRPA1 causes familial episodic pain syndrome.

Barbara Kremeyer, Francisco Lopera, James J Cox, Aliakmal Momin, Francois Rugiero, Steve Marsh, C Geoffrey Woods, Nicholas G Jones, Kathryn J Paterson, Florence R Fricker and 10 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Neuron, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 209 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
209citing papers in PubMed, 1 pooled it
13.5field-weighted citation impact, top 1% 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

209 citing papers in PubMed, 1 synthesis or guideline pooled it, 433 citations in OpenAlex.

  1. Enterochromaffin Cells: Sentinels to Gut Microbiota in Hyperalgesia?Frontiers in cellular and infection microbiology · 2021
    Pooled it
  2. Trial
  3. Trial
  4. Functional and molecular diversity of human C-fibers in pain modulation.Current opinion in supportive and palliative care · 2026
    Review
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  7. Article
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  15. Activation of TRPA1 and TRPM3 triggers CaThe Journal of physiology · 2025
    Article
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  17. Article
  18. Article
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 5 institutions in 3 countries.

Barbara KremeyerDepartment of Genetics, Evolution and Environment, University College London, London, UK.
Francisco Lopera
James J Cox
Aliakmal Momin
Francois Rugiero
Steve Marsh
C Geoffrey Woods
Nicholas G Jones
Kathryn J Paterson
Florence R Fricker
Andrés Villegas
Natalia Acosta
Nicolás G Pineda-Trujillo
Juan Diego Ramírez
Julián Zea
Mari-Wyn Burley
Gabriel Bedoya
David L H Bennett
John N Wood
Andrés Ruiz-Linares
University College London · GBKing's College London · GBUniversidad de Antioquia · COAddenbrooke's Hospital · GBSeoul National University · KR

Funding

Biotechnology and Biological Sciences Research Council BB/F000227/1Medical Research Council G0901905Medical Research Council G9717869Wellcome Trust
6 · The paper itself

Abstract

Human monogenic pain syndromes have provided important insights into the molecular mechanisms that underlie normal and pathological pain states. We describe an autosomal-dominant familial episodic pain syndrome characterized by episodes of debilitating upper body pain, triggered by fasting and physical stress. Linkage and haplotype analysis mapped this phenotype to a 25 cM region on chromosome 8q12-8q13. Candidate gene sequencing identified a point mutation (N855S) in the S4 transmembrane segment of TRPA1, a key sensor for environmental irritants. The mutant channel showed a normal pharmacological profile but altered biophysical properties, with a 5-fold increase in inward current on activation at normal resting potentials. Quantitative sensory testing demonstrated normal baseline sensory thresholds but an enhanced secondary hyperalgesia to punctate stimuli on treatment with mustard oil. TRPA1 antagonists inhibit the mutant channel, promising a useful therapy for this disorder. Our findings provide evidence that variation in the TRPA1 gene can alter pain perception in humans.

Indexed as

Amino Acid SequenceCalcium ChannelsCell LineHumansMolecular Sequence DataNerve Tissue ProteinsPainPain MeasurementPedigreePoint MutationSyndromeTransient Receptor Potential ChannelsTRPA1 Cation ChannelCalcium ChannelsNerve Tissue ProteinsTransient Receptor Potential ChannelsTRPA1 Cation ChannelTRPA1 protein, human

Identifiers

PMID20547126
PMCPMC4769261
OpenAlexW1974213802

What OpenQuestion holds

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LicenceCC BY
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.