Evidence map›Paper›PMID 25539511›Full record

ArticleThe international journal of neuropsychopharmacology2014

Increasing endocannabinoid levels in the ventral pallidum restore aberrant dopamine neuron activity in the subchronic PCP rodent model of schizophrenia.

David D Aguilar, Li Chen, Daniel J Lodge

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
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  8. Article
  9. Orexin Modulation of VTA Dopamine Neuron Activity: Relevance to Schizophrenia.The international journal of neuropsychopharmacology · 2021
    Article
  10. Review
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  14. Modulation of extrasynaptic GABANature communications · 2019
    Article
  15. Article
  16. Convergent Inputs from the Hippocampus and Thalamus to the Nucleus Accumbens Regulate Dopamine Neuron Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

David D AguilarDepartment of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center, San Antonio, Texas (Aguilar, Drs Chen and Lodge); Departments of Physiology & Pathophysiology, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, China (Dr Chen). aguilardd@livemail.uthscsa.edu.
Li ChenDepartment of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center, San Antonio, Texas (Aguilar, Drs Chen and Lodge); Departments of Physiology & Pathophysiology, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, China (Dr Chen).
Daniel J LodgeDepartment of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center, San Antonio, Texas (Aguilar, Drs Chen and Lodge); Departments of Physiology & Pathophysiology, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi, China (Dr Chen).
The University of Texas Health Science Center at San Antonio · US

Funding

Recruiting and Retaining URM StudentsR25GM095480 · NIGMS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI OYAJOBI, BABATUNDE OLUKAYODE, WEISS, DAVID S · 2011 to 2021
$3.4M
Endocannabinoid transmission in schizophreniaR01MH091130 · NIMH · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GIUFFRIDA, ANDREA · 2011 to 2015
$1.9M
NIGMS NIH HHS R25 GM095480NIMH NIH HHS R01 MH091130
6 · The paper itself

Abstract

backgroundSchizophrenia is a debilitating disorder that affects 1% of the US population. While the exogenous administration of cannabinoids such as tetrahydrocannabinol is reported to exacerbate psychosis in schizophrenia patients, augmenting the levels of endogenous cannabinoids has gained attention as a possible alternative therapy to schizophrenia due to clinical and preclinical observations. Thus, patients with schizophrenia demonstrate an inverse relationship between psychotic symptoms and levels of the endocannabinoid anandamide. In addition, increasing endocannabinoid levels (by blockade of enzymatic degradation) has been reported to attenuate social withdrawal in a preclinical model of schizophrenia. Here we examine the effects of increasing endogenous cannabinoids on dopamine neuron activity in the sub-chronic phencyclidine (PCP) model. Aberrant dopamine system function is thought to underlie the positive symptoms of schizophrenia.

methodsUsing in vivo extracellular recordings in chloral hydrate-anesthetized rats, we now demonstrate an increase in dopamine neuron population activity in PCP-treated rats.

resultsInterestingly, endocannabinoid upregulation, induced by URB-597, was able to normalize this aberrant dopamine neuron activity. Furthermore, we provide evidence that the ventral pallidum is the site where URB-597 acts to restore ventral tegmental area activity.

conclusionsTaken together, we provide preclinical evidence that augmenting endogenous cannabinoids may be an effective therapy for schizophrenia, acting in part to restore ventral pallidal activity.

Indexed as

AnimalsBasal ForebrainBenzamidesCarbamatesCentral Nervous System AgentsDisease Models, AnimalDopaminergic NeuronsEndocannabinoidsHippocampusMaleMicroelectrodesPhencyclidineRats, Sprague-DawleySchizophreniaSodium Channel BlockersTetrodotoxinBenzamidesCarbamatesCentral Nervous System Agentscyclohexyl carbamic acid 3'-carbamoylbiphenyl-3-yl esterEndocannabinoidsPhencyclidineSodium Channel BlockersTetrodotoxincannabinoidshippocampusphencyclidineschizophreniaventral pallidum

Identifiers

PMID25539511
PMCPMC4332795
OpenAlexW2106595454

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.