Evidence map›Paper›PMID 25197808›Full record

ArticleSleep2014

HLA DQB1*06:02 negative narcolepsy with hypocretin/orexin deficiency.

Fang Han, Ling Lin, Barbara Schormair, Fabio Pizza, Giuseppe Plazzi, Hanna M Ollila, Sona Nevsimalova, Poul Jennum, Stine Knudsen, Juliane Winkelmann and 7 more

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Sleep, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.1field-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

29 citing papers in PubMed, 75 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. The immunopathogenesis of narcolepsy type 1.Nature reviews. Immunology · 2024
    Review
  5. A series of 7 cases of patients with narcolepsy with hypocretin deficiency without the HLA DQB1*06:02 allele.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Central Disorders of Hypersomnolence.Continuum (Minneapolis, Minn.) · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. CD8Nature communications · 2019
    Article
  15. Article
  16. Autoimmunity to hypocretin and molecular mimicry to flu in type 1 narcolepsy.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  17. Article
  18. Article
  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

17 authors at 9 institutions in 7 countries.

Fang HanDepartment of Pulmonary Medicine, the Peking University People's Hospital, Beijing, China.
Ling LinCenter for Sleep Sciences and Medicine, and Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA.
Barbara SchormairInstitute of Human Genetics, Technische Universität München, Munich, Germany and Institute of Human Genetics, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany.
Fabio PizzaDepartment of Biomedical and Neuromotor Sciences, University of Bologna and IRCCS Institute of Neurological Sciences, Bologna, Italy.
Giuseppe PlazziDepartment of Biomedical and Neuromotor Sciences, University of Bologna and IRCCS Institute of Neurological Sciences, Bologna, Italy.
Hanna M OllilaCenter for Sleep Sciences and Medicine, and Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA.
Sona NevsimalovaDepartment of Neurology, Charles University in Prague, 1st Faculty of Medicine, Czech Republic.
Poul JennumDanish Center for Sleep Medicine, Department of Clinical Neurophysiology, Glostrup Hospital, University of Copenhagen, Denmark.
Stine KnudsenDanish Center for Sleep Medicine, Department of Clinical Neurophysiology, Glostrup Hospital, University of Copenhagen, Denmark and Norwegian Resource Center for ADHD, TS and Narcolepsy (NK), Oslo University Hospital, Ullevål, Norway.
Juliane WinkelmannCenter for Sleep Sciences and Medicine, and Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA and Institute of Human Genetics, Technische Universität München, Munich, Germany and Institute of Human Genetics, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany.
Cristin CoquillardDepartment of Pathology, Stanford University School of Medicine, Stanford, CA.
Farbod BabrzadehStanford Genome Technology Center, Stanford University, Palo Alto, CA.
Tim M StromInstitute of Human Genetics, Technische Universität München, Munich, Germany and Institute of Human Genetics, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany.
Chunlin WangStanford Genome Technology Center, Stanford University, Palo Alto, CA.
Michael MindrinosStanford Genome Technology Center, Stanford University, Palo Alto, CA.
Marcelo Fernandez VinaDepartment of Pathology, Stanford University School of Medicine, Stanford, CA.
Emmanuel MignotCenter for Sleep Sciences and Medicine, and Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA.
Stanford University · USCharles University · CZGlostrup Hospital · DKHelmholtz Zentrum München · DEInstitute of Neurological Sciences · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITPeking University · CNTechnical University of Munich · DEUniversity of Copenhagen · DK

Funding

SPECTRUM OF NARCOLEPSY AND ITS SYMPTOMSP50NS023724 · NINDS · STANFORD UNIVERSITY · PI MIGNOT, EMMANUEL J · 1986 to 2016
$18.9M
HLA-DQ Sequencing Studies in Narcolepsy/Hypocretin DeficiencyU01NS073581 · NINDS · STANFORD UNIVERSITY · PI MIGNOT, EMMANUEL J · 2010 to 2012
$1.2M
CENTER FOR NARCOLEPSY AND RELATED DISORDERSP01NS023724 · NINDS · STANFORD UNIVERSITY · PI DEMENT, WILLIAM C · 1987 to 1988
–
NINDS NIH HHS 5U01-NS073581NINDS NIH HHS NS23724
6 · The paper itself

Abstract

STUDY

objectivesTo identify rare allelic variants and HLA alleles in narcolepsy patients with hypocretin (orexin, HCRT) deficiency but lacking DQB1*06:02. SETTINGS: China (Peking University People's Hospital), Czech Republic (Charles University), Denmark (Golstrup Hospital), Italy (University of Bologna), Korea (Catholic University), and USA (Stanford University).

designCSF hypocretin-1, DQB1*06:02, clinical and polysomnographic data were collected in narcolepsy patients (552 with and 144 without cataplexy) from 6 sites. Numbers of cases with and without DQB1*06:02 and low CSF hypocretin-1 were compiled. HLA class I (A, B, C), class II (DRBs, DQA1, DQB1, DPA1, and DPB1), and whole exome sequencing were conducted in 9 DQB1*06:02 negative cases with low CSF hypocretin-1. Sanger sequencing of selected exons in DNMT1, HCRT, and MOG was performed to exclude mutations in known narcolepsy-associated genes. MEASUREMENTS AND

resultsClassic narcolepsy markers DQB1*06:02 and low CSF hypocretin-1 were found in 87.4% of cases with cataplexy, and in 20.0% without cataplexy. Nine cases (all with cataplexy) were DQB1*06:02 negative with low CSF hypocretin-1, constituting 1.7% [0.8%-3.4%] of all cases with cataplexy and 1.8% [0.8%-3.4%] of cases with low CSF hypocretin independent of cataplexy across sites. Five HLA negative subjects had severe cataplexy, often occurring without clear triggers. Subjects had diverse ethnic backgrounds and HLA alleles at all loci, suggesting no single secondary HLA association. The rare subtype DPB1*0901, and homologous DPB1*10:01 subtype, were present in 5 subjects, suggesting a secondary association with HLA-DP. Preprohypocretin sequencing revealed no mutations beyond one previously reported in a very early onset case. No new MOG or DNMT1 mutations were found, nor were suspicious or private variants in novel genes identified through exome sequencing.

conclusionsHypocretin, MOG, or DNMT1 mutations are exceptional findings in DQB1*06:02 negative cases with hypocretin deficiency. A secondary HLA-DP association may be present in these cases. These represent particularly difficult diagnostic challenges.

Indexed as

AllelesCataplexyCohort StudiesDNA Mutational AnalysisHLA-DQ beta-ChainsHumansInternationalityIntracellular Signaling Peptides and ProteinsMutationMyelin-Oligodendrocyte GlycoproteinNarcolepsyNeuropeptidesOrexinsRepressor ProteinsDMAP1 protein, humanHCRT protein, humanHLA-DQB1 antigenHLA-DQ beta-ChainsIntracellular Signaling Peptides and ProteinsMOG protein, humanMyelin-Oligodendrocyte GlycoproteinNeuropeptidesOrexinsRepressor ProteinscataplexyDNMT1exome sequencingHLAhypocretinMHCMOGnarcolepsyorexin

Identifiers

PMID25197808
PMCPMC4173917
OpenAlexW2086295255

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.