Evidence map›Paper›PMID 32433545›Full record

ArticleTranslational psychiatry2020

Cannabinoid receptor CNR1 expression and DNA methylation in human prefrontal cortex, hippocampus and caudate in brain development and schizophrenia.

Ran Tao, Chao Li, Andrew E Jaffe, Joo Heon Shin, Amy Deep-Soboslay, Rae'e Yamin, Daniel R Weinberger, Thomas M Hyde, Joel E Kleinman

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
7.1field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Research Review: What we have learned about the endocannabinoid system in developmental psychopathology.Journal of child psychology and psychiatry, and allied disciplines · 2025
    Review
  10. Review
  11. Article
  12. Review
  13. Observational
  14. Article
  15. Article
  16. 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

9 authors at 1 institution in 1 country.

Ran Tao *The Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.
Chao Li *The Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.ORCID http://orcid.org/0000-0002-2147-6281
Andrew E JaffeThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.ORCID http://orcid.org/0000-0001-6886-1454
Joo Heon ShinThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.
Amy Deep-SoboslayThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.
Rae'e YaminThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.
Daniel R WeinbergerThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.ORCID http://orcid.org/0000-0003-2409-2969
Thomas M HydeThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA.ORCID http://orcid.org/0000-0002-8746-3037
Joel E KleinmanThe Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, MD, USA. Joel.Kleinman@libd.org.
Johns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Beyond being one the most widely used psychoactive drugs in the world, cannabis has been identified as an environmental risk factor for psychosis. Though the relationship between cannabis use and psychiatric disorders remains controversial, consistent association between early adolescent cannabis use and the subsequent risk of psychosis suggested adolescence may be a particularly vulnerable period. Previous findings on gene by environment interactions indicated that cannabis use may only increase the risk for psychosis in the subjects who have a specific genetic vulnerability. The type 1 cannabinoid receptor (CB1), encoded by the CNR1 gene, is a key component of the endocannabinoid system. As the primary endocannabinoid receptor in the brain, CB1 is the main molecular target of the endocannabinoid ligand, as well as tetrahydrocannabinol (THC), the principal psychoactive ingredient of cannabis. In this study, we have examined mRNA expression and DNA methylation of CNR1 in human prefrontal cortex (PFC), hippocampus, and caudate samples. The expression of CNR1 is higher in fetal PFC and hippocampus, then drops down dramatically after birth. The lifespan trajectory of CNR1 expression in the DLPFC differentially correlated with age by allelic variation at rs4680, a functional polymorphism in the COMT gene. Compared with COMT methionine

Indexed as

CannabinoidsSchizophreniaAdolescentBrainDNA MethylationHippocampusHumansPolymorphism, Single NucleotidePrefrontal CortexReceptor, Cannabinoid, CB1Receptors, CannabinoidCannabinoidsCNR1 protein, humanReceptor, Cannabinoid, CB1Receptors, Cannabinoid

Identifiers

PMID32433545
PMCPMC7237456
OpenAlexW3026927871

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.