Evidence map›Paper›PMID 21458540›Full record

ArticleNeuroscience letters2011

Group II metabotropic glutamate receptors in the striatum of non-human primates: dysregulation following chronic cocaine self-administration.

T J R Beveridge, H R Smith, M A Nader, L J Porrino

Abstract read
In one paragraph

Article in Neuroscience letters, 2011. 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
0.6field-weighted citation impact, top 40% 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, 21 citations in OpenAlex.

  1. Review
  2. Article
  3. Residual deficits in functional brain activity after chronic cocaine self-administration in rhesus monkeys.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. 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.

T J R BeveridgeDepartment of Physiology and Pharmacology, Wake Forest University School of Medicine, Medical Center Boulevard, Winston Salem, NC 27157, USA. tbeverid@wfubmc.edu
H R Smith
M A Nader
L J Porrino
Wake Forest University · US

Funding

TROPANE EVALUATION AND GENERAL SCIENTIFIC SERVICES COREP50DA006634 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HOWLETT, ALLYN C · 1991 to 2019
$30.8M
NEUROBIOLOGICAL CORRELATES OF COCAINE ABUSER01DA009085 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI PORRINO, LINDA J. · 1995 to 2011
$3.9M
Effect of Cocaine Self-Administration on Metabotropic Glutamate SystemsR03DA026590 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI BEVERIDGE, THOMAS J.R. · 2009 to 2010
$145k
NIDA NIH HHS DA06634NIDA NIH HHS DA09085NIDA NIH HHS DA26590NIDA NIH HHS P50 DA006634NIDA NIH HHS R01 DA009085NIDA NIH HHS R03 DA026590
6 · The paper itself

Abstract

A growing body of evidence has demonstrated a role for group II metabotropic glutamate receptors (mGluRs) in the reinforcing effects of cocaine. These receptors are important given their location in limbic-related areas, and their ability to control the release of glutamate and other neurotransmitters. They are also potential targets for novel pharmacotherapies for cocaine addiction. The present study investigated the impact of chronic cocaine self-administration (9.0mg/kg/session for 100 sessions, 900 mg/kg total intake) on the densities of group II mGluRs, as assessed with in vitro receptor autoradiography, in the striatum of adult male rhesus monkeys. Binding of [(3)H]LY341495 to group II mGluRs in control animals was heterogeneous, with a medial to lateral gradient in binding density. Significant elevations in the density of group II mGluRs following chronic cocaine self-administration were measured in the dorsal, central and ventral portions of the caudate nucleus (P<0.05), compared to controls. No differences in receptor density were observed between the groups in either the putamen or nucleus accumbens. These data demonstrate that group II mGluRs in the dorsal striatum are more sensitive to the effects of chronic cocaine exposure than those in the ventral striatum. Cocaine-induced dysregulation of the glutamate system, and its consequent impact on plasticity and synaptic remodeling, will likely be an important consideration in the development of novel pharmacotherapies for cocaine addiction.

Indexed as

Amino AcidsAnimalsAntimetabolitesAutoradiographyCarbon IsotopesCocaineConditioning, OperantCorpus StriatumDeoxyglucoseDopamine Uptake InhibitorsExcitatory Amino Acid AntagonistsMacaca mulattaMaleProtein BindingReceptors, AMPAReceptors, Metabotropic GlutamateAmino AcidsAntimetabolitesCarbon IsotopesCocaineDeoxyglucoseDopamine Uptake InhibitorsExcitatory Amino Acid Antagonistsglutamate receptor ionotropic, AMPA 2LY 341495metabotropic glutamate receptor 2Receptors, AMPAReceptors, Metabotropic GlutamateTritiumXanthenes

Identifiers

PMID21458540
PMCPMC3110718
OpenAlexW2012875880

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.