Evidence map›Paper›PMID 22225591›Full record

ArticleArthritis research & therapy2012

Involvement of Nav 1.8 sodium ion channels in the transduction of mechanical pain in a rodent model of osteoarthritis.

Niklas Schuelert, Jason J McDougall

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

52 citing papers in PubMed, 88 citations in OpenAlex.

  1. Trial
  2. Article
  3. Measuring Joint Pain Through Tibiofemoral Flexion: A Novel Approach to Assess Pain Behavior and Analgesic Profiles in Rats.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  4. Article
  5. The Excelsatoxin A-Receptor TMEM233 Modulates Nav1.8.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  6. Review
  7. A small lipidated peptide targeting NaOsteoarthritis and cartilage open · 2026
    Article
  8. Article
  9. Ion channels as therapeutic targets in osteoarthritis.Trends in pharmacological sciences · 2025
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  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

2 authors at 1 institution in 1 country.

Niklas SchuelertDepartment of Physiology & Pharmacology, University of Calgary, 3330, Hospital Drive NW, Calgary, AB, T2N 4N1, Canada.
Jason J McDougall
University of Calgary · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

introductionA subgroup of voltage gated sodium channels including Nav1.8 are exclusively expressed on small diameter primary afferent neurons and are therefore believed to be integral to the neurotransmission of nociceptive pain. The present study examined whether local application of A-803467, a selective blocker of the Nav 1.8 sodium channel, can reduce nociceptive transmission from the joint in a rodent model of osteoarthritis (OA).

methodsOA-like changes were induced in male Wistar rats by an intra-articular injection of 3 mg sodium monoiodoacetate (MIA). Joint nociception was measured at day 14 by recording electrophysiologically from knee joint primary afferents in response to non-noxious and noxious rotation of the joint both before and following close intra-arterial injection of A-803467. The effect of Nav1.8 blockade on joint pain perception and secondary allodynia were determined in MIA treated animals by hindlimb incapacitance and von Frey hair algesiometry respectively.

resultsA-803467 significantly reduced the firing rate of joint afferents during noxious rotation of the joint but had no effect during non-noxious rotation. In the pain studies, peripheral injection of A-803467 into OA knees attenuated hindlimb incapacitance and secondary allodynia.

conclusionsThese studies show for the first time that the Nav1.8 sodium channel is part of the molecular machinery involved in mechanotransduction of joint pain. Targeting the Nav1.8 sodium channel on joint nociceptors could therefore be useful for the treatment of OA pain, avoiding the unwanted side effects of non-selective nerve blocks.

Indexed as

Disease Models, AnimalAnalysis of VarianceAniline CompoundsAnimalsArthralgiaExploratory BehaviorFuransGroomingHindlimbHumansHyperalgesiaInjections, Intra-ArticularIodoacetic AcidKnee JointMaleMechanotransduction, CellularA 803467Aniline CompoundsFuransIodoacetic AcidNAV1.8 Voltage-Gated Sodium ChannelScn10a protein, ratSodium Channel Blockers

Identifiers

PMID22225591
PMCPMC3392791
OpenAlexW2113076341

What OpenQuestion holds

Textmetadata
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.