Evidence map›Paper›PMID 25136085›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Narcolepsy patients have antibodies that stain distinct cell populations in rat brain and influence sleep patterns.

Peter Bergman, Csaba Adori, Szilvia Vas, Ylva Kai-Larsen, Tomi Sarkanen, Andreas Cederlund, Birgitta Agerberth, Ilkka Julkunen, Beata Horvath, Diana Kostyalik and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

30 citing papers in PubMed, 83 citations in OpenAlex.

  1. Autoantibodies reactive to adrenocorticotropic hormone can alter cortisol secretion in both aggressive and nonaggressive humans.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Trial
  2. Article
  3. The immunopathogenesis of narcolepsy type 1.Nature reviews. Immunology · 2024
    Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. No evidence of autoimmunity to human OXJournal of translational autoimmunity · 2020
    Article
  9. Review
  10. Article
  11. Review
  12. The neurobiological basis of narcolepsy.Nature reviews. Neuroscience · 2019
    Review
  13. Review
  14. Narcolepsy Associated with Pandemrix Vaccine.Current neurology and neuroscience reports · 2018
    Review
  15. Article
  16. Identification, Quantitation, and Imaging of the Crustacean Peptidome.Methods in molecular biology (Clifton, N.J.) · 2018
    Article
  17. Autoimmunity in narcolepsy.Current opinion in pulmonary medicine · 2017
    Review
  18. Review
  19. Review
  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

15 authors at 7 institutions in 3 countries.

Peter BergmanDepartment of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institutet and Karolinska University Hospital, 14186 Stockholm, Sweden; Department of Medicine, Center for Infectious Medicine (CIM), Karolinska Institutet and Karolinska University Hospital, 14186 Stockholm, Sweden; peter.bergman@ki.se adorics@gmail.com tomas.hokfelt@ki.se.
Csaba AdoriDepartment of Neuroscience, Karolinska Institutet, 1711 Stockholm, Sweden; peter.bergman@ki.se adorics@gmail.com tomas.hokfelt@ki.se.
Szilvia VasDepartment of Pharmacodynamics, Semmelweis University, 1089, Budapest, Hungary; Hungarian Academy of Sciences (MTA)--Semmelweis University (SE) Neuropsychopharmacology and Neurochemistry Research Group, 1089 Budapest, Hungary;
Ylva Kai-LarsenDepartment of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institutet and Karolinska University Hospital, 14186 Stockholm, Sweden; Department of Neuroscience, Karolinska Institutet, 1711 Stockholm, Sweden;
Tomi SarkanenDepartment of Neurology, Central Finland Hospital, 40620 Jyväskylä, Finland; Helsinki Sleep Clinic, Vitalmed Research Centre, 00420 Helsinki, Finland;
Andreas CederlundDepartment of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden;
Birgitta AgerberthDepartment of Laboratory Medicine, Division of Clinical Microbiology, Karolinska Institutet and Karolinska University Hospital, 14186 Stockholm, Sweden;
Ilkka JulkunenDepartment of Virology, University of Turku, 20520 Turku, Finland; Virology Unit, National Institute for Health and Welfare (THL), 00300 Helsinki, Finland;
Beata HorvathDepartment of Pharmacodynamics, Semmelweis University, 1089, Budapest, Hungary;
Diana KostyalikDepartment of Pharmacodynamics, Semmelweis University, 1089, Budapest, Hungary;
Lajos KalmárInstitute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, 1117 Budapest, Hungary; and.
Gyorgy BagdyDepartment of Pharmacodynamics, Semmelweis University, 1089, Budapest, Hungary; Hungarian Academy of Sciences (MTA)--Semmelweis University (SE) Neuropsychopharmacology and Neurochemistry Research Group, 1089 Budapest, Hungary;
Anne HuutoniemiHelsinki Sleep Clinic, Vitalmed Research Centre, 00420 Helsinki, Finland;
Markku PartinenHelsinki Sleep Clinic, Vitalmed Research Centre, 00420 Helsinki, Finland; Department of Clinical Neurosciences, University of Helsinki, 00014 Helsinki, Finland.
Tomas HökfeltDepartment of Neuroscience, Karolinska Institutet, 1711 Stockholm, Sweden; peter.bergman@ki.se adorics@gmail.com tomas.hokfelt@ki.se.
Semmelweis University · HUKarolinska Institutet · SEKarolinska University Hospital · SEAava Medical Centre · FIHungarian Academy of Sciences · HUUniversity of Helsinki · FIUniversity of Turku · FI

Funding

Medical Research Council
6 · The paper itself

Abstract

Narcolepsy is a chronic sleep disorder, likely with an autoimmune component. During 2009 and 2010, a link between A(H1N1)pdm09 Pandemrix vaccination and onset of narcolepsy was suggested in Scandinavia. In this study, we searched for autoantibodies related to narcolepsy using a neuroanatomical array: rat brain sections were processed for immunohistochemistry/double labeling using patient sera/cerebrospinal fluid as primary antibodies. Sera from 89 narcoleptic patients, 52 patients with other sleep-related disorders (OSRDs), and 137 healthy controls were examined. Three distinct patterns of immunoreactivity were of particular interest: pattern A, hypothalamic melanin-concentrating hormone and proopiomelanocortin but not hypocretin/orexin neurons; pattern B, GABAergic cortical interneurons; and pattern C, mainly globus pallidus neurons. Altogether, 24 of 89 (27%) narcoleptics exhibited pattern A or B or C. None of the patterns were exclusive for narcolepsy but were also detected in the OSRD group at significantly lower numbers. Also, some healthy controls exhibited these patterns. The antigen of pattern A autoantibodies was identified as the common C-terminal epitope of neuropeptide glutamic acid-isoleucine/α-melanocyte-stimulating hormone (NEI/αMSH) peptides. Passive transfer experiments on rat showed significant effects of pattern A human IgGs on rapid eye movement and slow-wave sleep time parameters in the inactive phase and EEG θ-power in the active phase. We suggest that NEI/αMSH autoantibodies may interfere with the fine regulation of sleep, contributing to the complex pathogenesis of narcolepsy and OSRDs. Also, patterns B and C are potentially interesting, because recent data suggest a relevance of those brain regions/neuron populations in the regulation of sleep/arousal.

Indexed as

AdolescentAdultAnimalsAutoantibodiesBrainColchicineElectroencephalographyGlobus PallidusHippocampusHumansImmunoglobulin GInterneuronsMaleMiceMice, Inbred C57BLMice, TransgenicAutoantibodiesColchicinecolchiconeImmunoglobulin GNerve Tissue ProteinsautoantigenH1N1 vaccinationneurotransmitterPOMC neurons

Identifiers

PMID25136085
PMCPMC4156690
OpenAlexW2037250847

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.