Evidence map›Paper›PMID 25536304›Full record

ArticleBrain research2015

Effect of environmental enrichment on dopamine and serotonin transporters and glutamate neurotransmission in medial prefrontal and orbitofrontal cortex.

Mahesh Darna, Joshua S Beckmann, Cassandra D Gipson, Michael T Bardo, Linda P Dwoskin

Open access · greenAbstract read
In one paragraph

Article in Brain research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.1field-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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
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  16. Review
  17. Trust and the poverty trap.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  18. 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

5 authors at 1 institution in 1 country.

Mahesh DarnaDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA.
Joshua S BeckmannDepartment of Psychology, University of Kentucky, Lexington, KY 40536, USA.
Cassandra D GipsonDepartment of Psychology, University of Kentucky, Lexington, KY 40536, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA.
Michael T BardoDepartment of Psychology, University of Kentucky, Lexington, KY 40536, USA.
Linda P DwoskinDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA. Electronic address: ldwoskin@email.uky.edu.
University of Kentucky · US

Funding

Training and Pilot CoreP50DA005312 · NIDA · UNIVERSITY OF KENTUCKY · PI BARDO, MICHAEL T · 1987 to 2016
$19.5M
Kentucky Center for Clinical and Translational ScienceUL1TR000117 · NCATS · UNIVERSITY OF KENTUCKY · PI KERN, PHILIP A · 2012 to 2015
$13.3M
Training in Drug Abuse Related Research.T32DA016176 · NIDA · UNIVERSITY OF KENTUCKY · PI DWOSKIN, LINDA P · 2004 to 2020
$4.0M
NOVELTY, DOPAMINE AND RESPONSE TO AMPHETAMINER01DA012964 · NIDA · YAUPON THERAPEUTICS, INC. · PI BARDO, MICHAEL T · 2000 to 2013
$3.7M
Tonic and Phasic Glutamate Release in Incentive Salience and Cocaine ReinforcemenR00DA033373 · NIDA · UNIVERSITY OF KENTUCKY · PI BECKMANN, JOSHUA · 2014 to 2016
$741k
NCATS NIH HHS UL1 TR000117NCATS NIH HHS UL1TR000117NIDA NIH HHS P50 DA005312NIDA NIH HHS R00 DA033373NIDA NIH HHS R00DA033373NIDA NIH HHS R01 DA012964NIDA NIH HHS R01DA12964NIDA NIH HHS T32 DA016176
6 · The paper itself

Abstract

Recent studies have reported that rats raised in an enriched condition (EC) have decreased dopamine transporter (DAT) function and expression in medial prefrontal cortex (mPFC), as well as increased d-amphetamine-induced glutamate release in nucleus accumbens compared to rats raised in an isolated condition (IC). In these previous studies, DAT function and expression were evaluated using mPFC pooled from four rats for each condition to obtain kinetic parameters due to sparse DAT expression in mPFC. In contrast, accumbal glutamate release was determined using individual rats. The current study extends the previous work and reports on the optimization of DAT and serotonin transporter (SERT) functional assays, as well as cell surface expression assays using both mPFC and orbitofrontal cortex (OFC) from individual EC or IC rats. In addition, the effect of d-amphetamine on glutamate release in mPFC and OFC of EC and IC rats was determined using in vivo microdialysis. Results show that environmental enrichment decreased maximal transport velocity (Vmax) for [(3)H]dopamine uptake in mPFC, but increased Vmax for [(3)H]dopamine uptake in OFC. Corresponding changes in DAT cell surface expression were not found. In contrast, Vmax for [(3)H]serotonin uptake and cellular localization of SERT in mPFC and OFC were not different between EC and IC rats. Further, acute d-amphetamine (2mg/kg, s.c.) increased extracellular glutamate concentrations in mPFC of EC rats only and in OFC of IC rats only. Overall, these results suggest that enrichment produces long-lasting alterations in mPFC and OFC DAT function via a trafficking-independent mechanism, as well as differential glutamate release in mPFC and OFC. Rearing-induced modulation of DAT function and glutamate release in prefrontal cortical subregions may contribute to the known protective effects of enrichment on drug abuse vulnerability.

Indexed as

Housing, AnimalAmphetamineAnimalsCentral Nervous System StimulantsDopamine Plasma Membrane Transport ProteinsEnvironmentExtracellular SpaceGlutamic AcidMalePrefrontal CortexRandom AllocationRats, Sprague-DawleySerotoninSerotonin Plasma Membrane Transport ProteinsSynaptosomesAmphetamineCentral Nervous System StimulantsDopamine Plasma Membrane Transport ProteinsGlutamic AcidSerotoninSerotonin Plasma Membrane Transport ProteinsSlc6a4 protein, ratDopamine transporterEnrichmentGlutamateMedial prefrontal cortexOrbitofrontal cortexSerotonin transporter

Identifiers

PMID25536304
PMCPMC4344853
OpenAlexW2055967470

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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.