Evidence map›Paper›PMID 19912468›Full record

ArticleJournal of neurochemistry2010

Reduced expression of glutamate receptors and phosphorylation of CREB are responsible for in vivo Delta9-THC exposure-impaired hippocampal synaptic plasticity.

Ni Fan, Hongwei Yang, Jian Zhang, Chu Chen

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

43 citing papers in PubMed, 90 citations in OpenAlex.

  1. Trial
  2. The endocannabinoid system and the ageing brain.Nature reviews. Neuroscience · 2026
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  14. Impairment of Synaptic Plasticity by Cannabis, ΔCold Spring Harbor perspectives in medicine · 2021
    Review
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  16. 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

4 authors at 1 institution in 1 country.

Ni FanNeuroscience Center of Excellence, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112, USA.
Hongwei Yang
Jian Zhang
Chu Chen
Louisiana State University Health Sciences Center New Orleans · US

Funding

Endocannabinoids in COX-2-Mediated Synaptic Modification and NeurotoxicityR01NS054886 · NINDS · LSU HEALTH SCIENCES CENTER · PI CHEN, CHU · 2007 to 2010
$1.1M
Astroglial Cells in Marijuana-Altered Synaptic PlasticityR03DA025971 · NIDA · LSU HEALTH SCIENCES CENTER · PI CHEN, CHU · 2008 to 2009
$142k
NIDA NIH HHS DA025971NIDA NIH HHS R03 DA025971NINDS NIH HHS NS054886NINDS NIH HHS R01 NS054886
6 · The paper itself

Abstract

Chronic use of marijuana impairs synaptic plasticity and cognitive function. However, the molecular mechanisms by which marijuana alters long-term synaptic plasticity are largely unknown. Here, we show that repeated in vivo exposures to Delta9-THC for 7 consecutive days significantly impaired hippocampal long-term potentiation (LTP) of excitatory glutamatergic synaptic transmission. The Delta9-THC exposure-induced decrease in LTP was prevented by pharmacological inhibition or deletion of the cannabinoid 1 receptor (CB1R). To determine the molecular mechanisms underlying Delta9-THC-altered LTP, we targeted expression and function of the glutamate receptors (GluR) and phosphorylation status of cAMP-response element-binding protein (CREB). Chronic in vivo exposure to Delta9-THC produced CB1R-dependent decreases in expression of hippocampal GluR1, NR2A, and NR2B, the ratio of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA)/NMDA receptor-gated currents, and phosphorylation of CREB. Our results suggest that reduced expression and function of the GluR subunits and phosphorylation of CREB may underlie the impaired long-term synaptic plasticity induced by repeated in vivo exposure to Delta9-THC.

Indexed as

2-Amino-5-phosphonovalerateAnimalsBicucullineBiophysicsBiotinylationCREB-Binding ProteinDronabinolElectric StimulationExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsGABA AntagonistsGene Expression RegulationHippocampusIn Vitro TechniquesLong-Term PotentiationMice2-Amino-5-phosphonovalerateBicucullineCREB-Binding ProteinDronabinolExcitatory Amino Acid AntagonistsGABA AntagonistsNR2A NMDA receptorNR2B NMDA receptorPsychotropic DrugsReceptor, Cannabinoid, CB1Receptors, AMPAReceptors, GlutamateReceptors, N-Methyl-D-Aspartate

Identifiers

PMID19912468
PMCPMC2809144
OpenAlexW2109913391

What OpenQuestion holds

Textmetadata
LicenceTDM
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.