Evidence map›Paper›PMID 21298561›Full record

ArticleCurrent neurology and neuroscience reports2011

The pathophysiologic basis of secondary narcolepsy and hypersomnia.

Takashi Kanbayashi, Yohei Sagawa, Fumi Takemura, Sachiko-Uemura Ito, Ko Tsutsui, Yasuo Hishikawa, Seiji Nishino

Abstract read
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In one paragraph

Article in Current neurology and neuroscience reports, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Suspected acquired narcolepsy in 8 dogs.Journal of veterinary internal medicine · 2021
    Article
  7. Review
  8. Article
  9. Update on narcolepsy.Journal of neurology · 2019
    Review
  10. The neurobiological basis of narcolepsy.Nature reviews. Neuroscience · 2019
    Review
  11. Article
  12. Article
  13. Review
  14. Reduced orexin-A levels in frontotemporal dementia: possible association with sleep disturbance.American journal of Alzheimer's disease and other dementias · 2013
    Article
  15. Classification of sleep disorders.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2012
    Review
  16. Narcolepsy in the pediatric population.Current neurology and neuroscience reports · 2012
    Article
  17. 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

7 authors at 4 institutions in 3 countries.

Takashi KanbayashiDepartment of Neuropsychiatry, Akita University School of Medicine, Akita, Japan.
Yohei Sagawa
Fumi Takemura
Sachiko-Uemura Ito
Ko Tsutsui
Yasuo Hishikawa
Seiji Nishino
Akita University · JPRMIT University · AUStanford Medicine · USStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The symptoms of narcolepsy can occur during the course of other neurologic conditions (ie, symptomatic narcolepsy). Inherited disorders, tumors, and head trauma were the three most frequent causes for symptomatic narcolepsy. Other causes include multiple sclerosis (MS), vascular disorders, and encephalitis. Cerebrospinal fluid hypocretin-1 measures were carried out in some recent cases with symptomatic narcolepsy, and moderate decreases in hypocretin levels were seen in a large majority of these cases. Excessive daytime sleepiness (EDS) in these symptomatic cases was sometimes reversible with an improvement of the causative neurologic disorder and with an improvement of the hypocretin (orexin) status. Recently, we found that several symptomatic narcoleptic cases with MS show unique bilateral symmetric hypothalamic lesions associated with significant hypocretin ligand deficiency. In addition, these patients often share the clinical characteristics of neuromyelitis optica (NMO) and the detection of NMO-IgG (or anti-aquaporin-4 [AQP4] antibodies), suggesting a new clinical entity. Further studies of the involvement of the hypocretin system in symptomatic narcolepsy and EDS are helpful to understand the pathophysiologic mechanisms for occurrence of EDS and cataplexy.

Indexed as

AdolescentChildDisorders of Excessive SomnolenceHumansHypothalamusIntracellular Signaling Peptides and ProteinsMagnetic Resonance ImagingMaleMiddle AgedNarcolepsyNeuromyelitis OpticaNeuropeptidesOrexinsHCRT protein, humanIntracellular Signaling Peptides and ProteinsNeuropeptidesOrexins

Identifiers

PMID21298561
OpenAlexW2102494252

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.