Evidence map›Paper›PMID 30225986›Full record

ArticleCNS neuroscience & therapeutics2019

Impaired histaminergic neurotransmission in children with narcolepsy type 1.

Patricia Franco, Yves Dauvilliers, Clara Odilia Inocente, Aurore Guyon, Carine Villanueva, Veronique Raverot, Sabine Plancoulaine, Jian-Sheng Lin

Open access · bronzeAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. A real-world study on the treatment of pediatric narcolepsy with pitolisant in China.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Observational
  3. Review
  4. Whole-brain mapping of histaminergic projections in mouse brain.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Review
  6. Article
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  8. Article
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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

8 authors at 2 institutions in 2 countries.

Patricia FrancoIntegrative Physiology of the Brain Arousal System, CRNL, INSERM-U1028, CNRS, UMR5292, University Lyon1, Lyon, France.
Yves DauvilliersNational Reference Centre for Orphan Diseases, Narcolepsy, Idiopathic hypersomnia and Kleine-Levin Syndrome (CNR narcolepsie-hypersomnie), Bron, France.
Clara Odilia InocenteIntegrative Physiology of the Brain Arousal System, CRNL, INSERM-U1028, CNRS, UMR5292, University Lyon1, Lyon, France.
Aurore GuyonIntegrative Physiology of the Brain Arousal System, CRNL, INSERM-U1028, CNRS, UMR5292, University Lyon1, Lyon, France.
Carine VillanuevaDepartment of Endocrinology, Mother- Children Hospital, Hospices Civils de Lyon, University Lyon1, France.
Veronique RaverotLaboratoire de Hormonologie, Groupement Est, Hospices Civils de Lyon, University Lyon1, Lyon, France.
Sabine PlancoulaineINSERM, UMR1153, Centre of Research in Epidemiology and Statistics Sorbonne Paris Cité (CRESS), Villejuif, Paris-Descartes University, Paris, France.
Jian-Sheng LinIntegrative Physiology of the Brain Arousal System, CRNL, INSERM-U1028, CNRS, UMR5292, University Lyon1, Lyon, France.ORCID 0000-0002-2004-6079
Université Claude Bernard Lyon 1 · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveNarcolepsy is a sleep disorder characterized in humans by excessive daytime sleepiness and cataplexy. Greater than fifty percent of narcoleptic patients have an onset of symptoms prior to the age of 18. Current general agreement considers the loss of hypothalamic hypocretin (orexin) neurons as the direct cause of narcolepsy notably cataplexy. To assess whether brain histamine (HA) is also involved, we quantified the cerebrospinal fluid (CSF) levels of HA and tele-methylhistamine (t-MeHA), the direct metabolite of HA between children with orexin-deficient narcolepsy type 1 (NT1) and controls.

methodsWe included 24 children with NT1 (12.3 ± 3.6 years, 11 boys, 83% cataplexy, 100% HLA DQB1*06:02) and 21 control children (11.2 ± 4.2 years, 10 boys). CSF HA and t-MeHA were measured in all subjects using a highly sensitive liquid chromatographic-electrospray/tandem mass spectrometric assay. CSF hypocretin-1 values were determined in the narcoleptic patients.

resultsCompared with the controls, NT1 children had higher CSF HA levels (771 vs 234 pmol/L, P < 0.001), lower t-MeHA levels (879 vs 1924 pmol/L, P < 0.001), and lower t-MeHA/HA ratios (1.1 vs 8.2, P < 0.001). NT1 patients had higher BMI z-scores (2.7 ± 1.6 vs 1.0 ± 2.3, P = 0.006) and were more often obese (58% vs 29%, P = 0.05) than the controls. Multivariable analyses including age, gender, and BMI z-score showed a significant decrease in CSF HA levels when the BMI z-score increased in patients (P = 0.007) but not in the controls. No association was found between CSF HA, t-MeHA, disease duration, age at disease onset, the presence of cataplexy, lumbar puncture timing, and CSF hypocretin levels.

conclusionsNarcolepsy type 1 children had a higher CSF HA level together with a lower t-MeHA level leading to a significant decrease in the t-MeHA/HA ratios. These results suggest a decreased HA turnover and an impairment of histaminergic neurotransmission in narcoleptic children and support the use of a histaminergic therapy in the treatment against narcolepsy.

Indexed as

AdolescentBody Mass IndexChildChild, PreschoolFemaleHistamineHumansMaleMethylhistaminesNarcolepsyOrexinsSynaptic TransmissionHistamineMethylhistaminesOrexinshistaminehypocretin (orexin)narcolepsypediatricssleep

Identifiers

PMID30225986
PMCPMC6488909
OpenAlexW2892358249

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.