Evidence map›Paper›PMID 22451206›Full record

Trial reportAnnals of neurology2012

Potassium channel complex autoimmunity induced by inhaled brain tissue aerosol.

Jeffrey W Meeusen, Christopher J Klein, Istvan Pirko, Keegan E Haselkorn, Thomas J Kryzer, Sean J Pittock, Daniel H Lachance, P James Dyck, Vanda A Lennon

Open access · greenAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Annals of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. LGI1, CASPR2 and related antibodies: a molecular evolution of the phenotypes.Journal of neurology, neurosurgery, and psychiatry · 2018
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. 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

9 authors at 2 institutions in 1 country.

Jeffrey W MeeusenDepartment of Laboratory Medicine and Pathology, College of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
Christopher J Klein
Istvan Pirko
Keegan E Haselkorn
Thomas J Kryzer
Sean J Pittock
Daniel H Lachance
P James Dyck
Vanda A Lennon
Mayo Clinic in Arizona · USMayo Clinic · US

Funding

DIABETIC NEUROPATHY STUDYR01NS036797 · NINDS · MAYO CLINIC ROCHESTER · PI DYCK, PETER JAMES · 1997 to 2008
$6.8M
Spectrum of Autoimmune Gastrointestinal DysmotilityR01DK071209 · NIDDK · MAYO CLINIC ROCHESTER · PI LENNON, VANDA A · 2005 to 2009
$1.6M
CD8+ T cells in formation of T1 black holes in animal model of multiple sclerosisR01NS058698 · NINDS · UNIVERSITY OF CINCINNATI · PI PIRKO, ISTVAN · 2008 to 2011
$1.2M
Identification of Genetic Causes of Hereditary Sensory and Autonomic NeuropathiesK08NS065007 · NINDS · MAYO CLINIC ROCHESTER · PI KLEIN, CHRISTOPHER · 2009 to 2013
$855k
NIDDK NIH HHS DK071209NIDDK NIH HHS R01 DK071209NINDS NIH HHS K08 NS065007NINDS NIH HHS NS058698NINDS NIH HHS NS065007NINDS NIH HHS NS36797NINDS NIH HHS R01 NS036797NINDS NIH HHS R01 NS058698
6 · The paper itself

Abstract

objectiveTo test the hypothesis that autoimmunity induced by inhalation of aerosolized brain tissue caused outbreaks of sensory-predominant polyradiculoneuropathy among swine abattoir employees in the Midwestern United States.

methodsMice were exposed intranasally, 5 days per week, to liquefied brain tissue. Serum from exposed mice, patients, and unaffected abattoir employees were analyzed for clinically pertinent neural autoantibodies.

resultsPatients, coworkers, and mice exposed to liquefied brain tissue had an autoantibody profile dominated by neural cation channel immunoglobulin Gs (IgGs). The most compelling link between patients and exposed mice was magnetic resonance imaging (MRI) evidence of grossly swollen spinal nerve roots. Autoantibody responses in patients and mice were dose-dependent and declined after antigen exposure ceased. Autoantibodies detected most frequently, and at high levels, bound to detergent-solubilized macromolecular complexes containing neuronal voltage-gated potassium channels ligated with a high affinity Kv1 channel antagonist, 125I-α-dendrotoxin. Exposed mice exhibited a behavioral phenotype consistent with potassium channel dysfunction recognized in drosophila with mutant ("shaker") channels: reduced sensitivity to isoflurane-induced anesthesia. Pathological and electrophysiological findings in patients supported peripheral nerve hyperexcitability over destructive axonal loss. The pain-predominant symptoms were consistent with sensory nerve hyperexcitability.

interpretationOur observations establish that inhaled neural antigens readily induce neurological autoimmunity and identify voltage-gated potassium channel complexes as a major immunogen.

Indexed as

Administration, InhalationAerosolsAnimalsAutoantibodiesBrainCattleHEK293 CellsHumansMiceMice, Neurologic MutantsShaker Superfamily of Potassium ChannelsSwineAerosolsAutoantibodiesShaker Superfamily of Potassium Channels

Identifiers

PMID22451206
PMCPMC3315155
OpenAlexW2071949876

What OpenQuestion holds

Textmetadata
LicenceTDM
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.