Evidence map›Paper›PMID 30820632›Full record

ArticlePsychopharmacology2019

Functional characterization of the cannabinoid receptors 1 and 2 in zebrafish larvae using behavioral analysis.

Floris J Luchtenburg, Marcel J M Schaaf, Michael K Richardson

Open access · hybridAbstract read
In one paragraph

Article in Psychopharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 25 citations in OpenAlex.

  1. Early Life Exposure to ΔCannabis and cannabinoid research · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. In Vivo Evaluation ofPharmaceuticals (Basel, Switzerland) · 2021
    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

3 authors at 1 institution in 1 country.

Floris J LuchtenburgInstitute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands.ORCID http://orcid.org/0000-0002-7764-6526
Marcel J M SchaafInstitute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands.
Michael K RichardsonInstitute of Biology, Leiden University, Sylviusweg 72, 2333 BE, Leiden, The Netherlands. m.k.richardson@biology.leidenuniv.nl.
Leiden University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleThe endocannabinoid system (ECS) comprises the cannabinoids anandamide and 2-arachidonoylglycerol and the cannabinoid receptors 1 and 2 (Cnr1 and Cnr2). The function of these receptors in relation to zebrafish larval behavior is poorly understood, even though the zebrafish larva has become a versatile animal model in biomedical research.

objectivesThe objective of the present study is to characterize the function of Cnr1 and Cnr2 in relation to behavior in zebrafish.

methodsBehavioral analysis of zebrafish larvae was performed using a visual motor response (VMR) test, which allows locomotor activity to be determined under basal conditions and upon a dark challenge.

resultsTreatment with the non-specific Cnr agonists WIN55,212-2 and CP55,940 resulted in a decrease in locomotion. This was observed for both basal and challenge-induced locomotion, although the potency for these two effects was different, which suggests different mechanisms of action. In addition, WIN55,212-2 increased the reaction time of the startle response after the dark challenge. Using the Cnr1 antagonist AM251 and a cnr1

conclusionsTaken together, these results show that Cnr1 activation by exogenous endocannabinoids modulates both basal and challenge-induced locomotor activity in zebrafish larvae and that these behavioral effects can be used as a readout to monitor the Cnr1 responsiveness in the zebrafish larva model system.

Indexed as

AnimalsArachidonic AcidsCannabinoidsDark AdaptationDose-Response Relationship, DrugEndocannabinoidsGlyceridesLarvaLocomotionPiperidinesPolyunsaturated AlkamidesPyrazolesReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2ZebrafishZebrafish ProteinsAM 251anandamideArachidonic AcidsCannabinoidsCnr1 protein, zebrafishCnr2 protein, zebrafishEndocannabinoidsGlyceridesglyceryl 2-arachidonatePiperidinesPolyunsaturated AlkamidesPyrazolesReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2Zebrafish ProteinsBehaviorCannabinoid receptor 1Cannabinoid receptor 2CannabinoidsVisual motor response testZebrafish

Identifiers

PMID30820632
PMCPMC6647118
OpenAlexW2918207254

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.