Evidence map›Paper›PMID 32272483›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2020

Cerebrospinal fluid endocannabinoid levels in Gilles de la Tourette syndrome.

Kirsten R Müller-Vahl, Laura Bindila, Beat Lutz, Frank Musshoff, Thomas Skripuletz, Charlotte Baumgaertel, Kurt-Wolfram Sühs

Open access · hybridAbstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. The Use of Cannabis-Based Medicine in Selected Neurological Disorders.Current topics in behavioral neurosciences · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. The Use of Compounds Derived fromInternational journal of molecular sciences · 2024
    Review
  13. Review
  14. Article
  15. Medicinal Cannabis for Paediatric Developmental, Behavioural and Mental Health Disorders.International journal of environmental research and public health · 2023
    Review
  16. Molecular Landscape of Tourette's Disorder.International journal of molecular sciences · 2023
    Article
  17. Review
  18. Motor-like Tics are Mediated by CBMolecular neurobiology · 2022
    Article
  19. Article
  20. Review
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 2 institutions in 1 country.

Kirsten R Müller-VahlClinic of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany. Mueller-Vahl.Kirsten@mh-hannover.de.ORCID http://orcid.org/0000-0002-7181-7419
Laura BindilaInstitute of Physiological Chemistry, University Medical Center of the JGU, Mainz, Germany.
Beat LutzInstitute of Physiological Chemistry, University Medical Center of the JGU, Mainz, Germany.
Frank MusshoffForensic Toxicological Centre Munich, Munich, Germany.
Thomas SkripuletzDepartment of Neurology, Hannover Medical School, Hannover, Germany.
Charlotte BaumgaertelClinic of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany.
Kurt-Wolfram SühsDepartment of Neurology, Hannover Medical School, Hannover, Germany.
Medizinische Hochschule Hannover · DEJohannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gilles de la Tourette syndrome (TS) is a complex neurodevelopmental disorder characterized by the presence of motor and vocal tics as well as psychiatric comorbidities such as attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), depression, and anxiety. The underlying cause of the disease is still unknown, but several lines of evidence suggest a paramount role of the dopaminergic system. Based on the clinical observation that cannabis-based medicine including cannabis and delta-9-tetrahydrocannabinol (THC, dronabinol) may improve TS, alternatively, an involvement of the endocannabinoid system (ECS) has been suggested. In this study we measured cerebrospinal fluid (CSF) levels of the two most important endocannabinoids "N"-arachidonoylethanolamine (AEA, anandamide) and 2-arachidonoylglycerol (2-AG), the endocannabinoid-like molecule palmitoyl ethanolamide (PEA), and the lipid arachidonic acid (AA) in a sample of adult patients with TS (n = 20) compared with controls (n = 19) using liquid-liquid lipid extraction and simultaneous quantification by liquid chromatography multiple reaction monitoring (LC/MRM). CSF levels of AEA (p = 0.0018), 2-AG (p = 0.0003), PEA (p = 0.02), and AA (p < 0.0001) were significantly increased in TS compared with controls. Levels of 2-AG correlated with the severity of comorbid ADHD (p < 0.01). This is the first study, demonstrating alterations in the ECS suggesting an involvement of this system in the pathophysiology of TS. It can be speculated that elevated endocannabinoid levels either represent secondary changes in order to compensate for alterations in other neurotransmitter systems such as the dopaminergic system, are simply an epiphenomenon or, alternatively, represent the primary cause of TS.

Indexed as

Attention Deficit Disorder with HyperactivityObsessive-Compulsive DisorderTicsTourette SyndromeAdultEndocannabinoidsHumansEndocannabinoids

Identifiers

PMID32272483
PMCPMC7297729
OpenAlexW3015301287

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.