Evidence map›Paper›PMID 22740698›Full record

ArticleThe Journal of biological chemistry2012

Methylglyoxal activates nociceptors through transient receptor potential channel A1 (TRPA1): a possible mechanism of metabolic neuropathies.

Mirjam J Eberhardt, Milos R Filipovic, Andreas Leffler, Jeanne de la Roche, Katrin Kistner, Michael J Fischer, Thomas Fleming, Katharina Zimmermann, Ivana Ivanovic-Burmazovic, Peter P Nawroth and 3 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
8.3field-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

94 citing papers in PubMed, 186 citations in OpenAlex.

  1. Trial
  2. A Human TRPA1-Specific Pain Model.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Trial
  3. Review
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  5. Article
  6. Article
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  8. Article
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  11. Article
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  14. Genetic Variants Influence the Development of Diabetic Neuropathy.International journal of molecular sciences · 2024
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Inflammation-the role of TRPA1 channel.Frontiers in physiology · 2023
    Review
  20. Article

34 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

13 authors at 4 institutions in 1 country.

Mirjam J EberhardtInstitute of Physiology and Pathophysiology Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 17, 91054 Erlangen, Germany.
Milos R Filipovic
Andreas Leffler
Jeanne de la Roche
Katrin Kistner
Michael J Fischer
Thomas Fleming
Katharina Zimmermann
Ivana Ivanovic-Burmazovic
Peter P Nawroth
Angelika Bierhaus
Peter W Reeh
Susanne K Sauer
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEHeidelberg University · DEMedizinische Hochschule Hannover · DEUniversity Hospital Heidelberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuropathic pain can develop as an agonizing sequela of diabetes mellitus and chronic uremia. A chemical link between both conditions of altered metabolism is the highly reactive compound methylglyoxal (MG), which accumulates in all cells, in particular neurons, and leaks into plasma as an index of the severity of the disorder. The electrophilic structure of this cytotoxic ketoaldehyde suggests TRPA1, a receptor channel deeply involved in inflammatory and neuropathic pain, as a molecular target. We demonstrate that extracellularly applied MG accesses specific intracellular binding sites of TRPA1, activating inward currents and calcium influx in transfected cells and sensory neurons, slowing conduction velocity in unmyelinated peripheral nerve fibers, and stimulating release of proinflammatory neuropeptides from and action potential firing in cutaneous nociceptors. Using a model peptide of the N terminus of human TRPA1, we demonstrate the formation of disulfide bonds based on MG-induced modification of cysteines as a novel mechanism. In conclusion, MG is proposed to be a candidate metabolite that causes neuropathic pain in metabolic disorders and thus is a promising target for medicinal chemistry.

Indexed as

Action PotentialsAnimalsBinding SitesCalcium ChannelsHEK293 CellsHumansInflammation MediatorsMiceMice, Mutant StrainsNerve Tissue ProteinsNeuralgiaNeuronsNeuropeptidesNociceptorsPyruvaldehydeRatsCalcium ChannelsInflammation MediatorsNerve Tissue ProteinsNeuropeptidesPyruvaldehydeTransient Receptor Potential ChannelsTRPA1 Cation ChannelTRPA1 protein, humanTrpa1 protein, mouseTrpa1 protein, ratTRPC Cation Channels

Identifiers

PMID22740698
PMCPMC3436587
OpenAlexW2071906635

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.