Evidence map›Paper›PMID 25735002›Full record

ArticlePain2015

Activation of peripheral KCNQ channels relieves gout pain.

Yueming Zheng, Haiyan Xu, Li Zhan, Xindi Zhou, Xueqin Chen, Zhaobing Gao

Open access · hybridAbstract read
In one paragraph

Article in Pain, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

21 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Novel KCNQ2 missense variant expands the genotype spectrum of DEE7.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  5. Molecular basis of the urate transporter URAT1 inhibition by gout drugs.bioRxiv : the preprint server for biology · 2024
    Article
  6. Article
  7. Article
  8. Chemical modulation of Kv7 potassium channels.RSC medicinal chemistry · 2021
    Review
  9. Article
  10. Article
  11. Pharmacological Manipulation of KFrontiers in physiology · 2020
    Review
  12. Inhibition of M/KFrontiers in molecular neuroscience · 2020
    Article
  13. Nociceptor Signalling through ion Channel Regulation via GPCRs.International journal of molecular sciences · 2019
    Review
  14. Article
  15. Article
  16. Breaking barriers to novel analgesic drug development.Nature reviews. Drug discovery · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. Review
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

6 authors at 2 institutions in 1 country.

Yueming ZhengCAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.
Haiyan Xu
Li Zhan
Xindi Zhou
Xueqin Chen
Zhaobing Gao
Shanghai Institute of Materia Medica · CNChinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intense inflammatory pain caused by urate crystals in joints and other tissues is a major symptom of gout. Among therapy drugs that lower urate, benzbromarone (BBR), an inhibitor of urate transporters, is widely used because it is well tolerated and highly effective. We demonstrate that BBR is also an activator of voltage-gated KCNQ potassium channels. In cultured recombinant cells, BBR exhibited significant potentiation effects on KCNQ channels comparable to previously reported classical activators. In native dorsal root ganglion neurons, BBR effectively overcame the suppression of KCNQ currents, and the resultant neuronal hyperexcitability caused by inflammatory mediators, such as bradykinin (BK). Benzbromarone consistently attenuates BK-, formalin-, or monosodium urate-induced inflammatory pain in rat and mouse models. Notably, the analgesic effects of BBR are largely mediated through peripheral and not through central KCNQ channels, an observation supported both by pharmacokinetic studies and in vivo experiments. Moreover, multiple residues in the superficial part of the voltage sensing domain of KCNQ channels were identified critical for the potentiation activity of BBR by a molecular determinant investigation. Our data indicate that activation of peripheral KCNQ channels mediates the pain relief effects of BBR, potentially providing a new strategy for the development of more effective therapies for gout.

Indexed as

Action PotentialsAnimalsAnimals, NewbornArthritisBenzbromaroneCells, CulturedCHO CellsCricetulusDisease Models, AnimalFormaldehydeGanglia, SpinalHippocampusInflammationKCNQ2 Potassium ChannelMaleMiceBenzbromaroneFormaldehydeKCNQ2 Potassium ChannelUric AcidUricosuric Agents

Identifiers

PMID25735002
PMCPMC4450870
OpenAlexW1999371399

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.