Evidence map›Paper›PMID 26515747›Full record

ArticleNeuroscience2015

Neuronal expression of CB2 cannabinoid receptor mRNAs in the mouse hippocampus.

Y Li, J Kim

Abstract read
In one paragraph

Article in Neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 2 pooled it
15.2field-weighted citation impact, top 1% 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

77 citing papers in PubMed, 2 syntheses or guidelines pooled it, 147 citations in OpenAlex.

  1. Pooled it
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  11. Article
  12. Cannabinoid CB2 receptors and hypersensitivity to methamphetamine: Vulnerability to schizophrenia.Progress in neuro-psychopharmacology & biological psychiatry · 2024
    Article
  13. Review
  14. The Role of the Endocannabinoid System in Binge Eating Disorder.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Review
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  20. Article

17 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Y LiDepartment of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA.
J KimDepartment of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Neurology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA. Electronic address: jimkim@gru.edu.
Augusta University · US

Funding

Regulation of Basal Endocannabinoid Tone in the HippocampusR01AG036794 · NIA · AUGUSTA UNIVERSITY · PI KIM, JIMOK · 2010 to 2014
$914k
NIA NIH HHS R01 AG036794NIA NIH HHS R01AG036794
6 · The paper itself

Abstract

In the brain, CB1 cannabinoid receptors primarily mediate the effects of cannabinoids, but CB2 cannabinoid receptors (CB2Rs) have recently been discovered in the nervous system and also implicated in neuromodulatory roles. To understand the mechanisms of CB2R functions in the brain, it is essential to localize CB2Rs, but the types of cells expressing CB2Rs have been controversial. Unequivocal localization of CB2Rs in the brain has been impeded in part by the low expression levels of CB2Rs and poor specificity of detection methods. Here, we used an ultrasensitive and specific in situ hybridization method called the RNAscope to determine the spatial pattern of CB2R mRNA expression in the mouse hippocampus. CB2R mRNAs were mostly expressed in a subset of excitatory and inhibitory neurons in the CA1, CA3 and dentate gyrus areas, but rarely in microglia. CB2R knock-out mice were used as a negative control. Using the quantitative real-time polymerase chain reaction, we also found that the temporal pattern of CB2R mRNA expression was stable during postnatal development. Consistent with previous reports, the immunological detection of CB2Rs was not reliable, implying extremely low levels of the protein expression and/or insufficient specificity of the current anti-CB2R antibodies. Our findings of the expression patterns of CB2R mRNAs may help determine the cell types involved in, and hence the mechanisms of, the CB2R-mediated neuromodulation.

Indexed as

AnimalsBlotting, WesternGlutamic AcidHippocampusImmunohistochemistryIn Situ HybridizationMice, Inbred C57BLMice, KnockoutMicrogliaMicroscopy, ConfocalNeuronsPolymerase Chain ReactionReceptor, Cannabinoid, CB2RNA, MessengerTissue Culture TechniquesCnr2 protein, mouseGlutamic AcidReceptor, Cannabinoid, CB2RNA, MessengercannabinoidCB2 cannabinoid receptorconfocal microscopyimmunohistochemistryin situ hybridizationRNAscope

Identifiers

PMID26515747
PMCPMC4917208
OpenAlexW1851155939

What OpenQuestion holds

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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.