Evidence map›Paper›PMID 22167224›Full record

ArticleJournal of neurology2012

Anti-voltage-gated potassium channel Kv1.4 antibodies in myasthenia gravis.

Fredrik Romi, Shigeaki Suzuki, Norihiro Suzuki, Axel Petzold, Gordon T Plant, Nils Erik Gilhus

Abstract read
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In one paragraph

Article in Journal of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

25 citing papers in PubMed, 67 citations in OpenAlex.

  1. Review
  2. Review
  3. Cardiac implications in myasthenia gravis.World journal of clinical cases · 2024
    Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Antibody Therapies in Autoimmune Neuromuscular Junction Disorders: Approach to Myasthenic Crisis and Chronic Management.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  11. Review
  12. Review
  13. Fc-Receptor Targeted Therapies for the Treatment ofInternational journal of molecular sciences · 2021
    Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Review
  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 5 institutions in 4 countries.

Fredrik RomiDepartment of Neurology, Haukeland University Hospital, Bergen, Norway. fredrik.romi@haukeland.no
Shigeaki Suzuki
Norihiro Suzuki
Axel Petzold
Gordon T Plant
Nils Erik Gilhus
Keio University · JPHaukeland University Hospital · NOSt Thomas' Hospital · GBUniversity College London · GBUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myasthenia gravis (MG) is an autoimmune disease characterized by skeletal muscle weakness mainly caused by acetylcholine receptor antibodies. MG can be divided into generalized and ocular, and into early-onset (<50 years of age) and late-onset (≥50 years of age). Anti-Kv1.4 antibodies targeting α-subunits (Kv1.4) of the voltage-gated potassium K(+) channel occurs frequently among patients with severe MG, accounting for 18% of a Japanese MG population. The aim of this study was to characterize the clinical features and serological associations of anti-Kv1.4 antibodies in a Caucasian MG population with mild and localized MG. Serum samples from 129 Caucasian MG patients with mainly ocular symptoms were tested for the presence of anti-Kv1.4 antibodies and compared to clinical and serological parameters. There were 22 (17%) anti-Kv1.4 antibody-positive patients, most of them women with late-onset MG, and all of them with mild MG. This contrasts to the Japanese anti-Kv1.4 antibody-positive patients who suffered from severe MG with bulbar symptoms, myasthenic crisis, thymoma, myocarditis and prolonged QT time on electrocardiography, despite equal anti-Kv1.4 antibody occurrence in both populations. No other clinical or serological parameters influenced anti-Kv1.4 antibody occurrence.

Indexed as

AdultAgedAge of OnsetAutoantibodiesFemaleHumansJapanKv1.4 Potassium ChannelMagnetic Resonance ImagingMaleMatrix MetalloproteinasesMiddle AgedMyasthenia GravisReceptor Protein-Tyrosine KinasesReceptors, CholinergicSex FactorsAutoantibodiesKv1.4 Potassium ChannelMatrix MetalloproteinasesMUSK protein, humanReceptor Protein-Tyrosine KinasesReceptors, Cholinergic

Identifiers

PMID22167224
OpenAlexW2144373047

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.