Evidence map›Paper›PMID 24760865›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2014

Infralimbic BDNF/TrkB enhancement of GluN2B currents facilitates extinction of a cocaine-conditioned place preference.

James M Otis, Michael K Fitzgerald, Devin Mueller

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
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  10. Molecular and circuit mechanisms regulating cocaine memory.Cellular and molecular life sciences : CMLS · 2020
    Review
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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

3 authors at 1 institution in 1 country.

James M OtisDepartment of Psychology, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201-0413.
Michael K Fitzgerald
Devin Mueller
University of Wisconsin–Milwaukee · US

Funding

Glutamate and prefrontal regulation of cocaine seeking after extinctionR03DA027870 · NIDA · UNIVERSITY OF WISCONSIN MILWAUKEE · PI MUELLER, DEVIN · 2010 to 2010
$74k
NIDA NIH HHS R03 DA027870
6 · The paper itself

Abstract

Brain-derived neurotrophic factor (BDNF) regulates synaptic activity and behavioral flexibility, and reduction of BDNF strongly predicts psychiatric disorders and cognitive dysfunction. Restoration of BDNF-dependent activity could alleviate these impairments, but BDNF has limited clinical utility due to its pharmacokinetics. Here we demonstrate that activation of a primary BDNF target, the tropomyosin-related kinase B (TrkB) receptor, enhances the amplitude and prolongs the decay kinetics of N-methyl-d-aspartate receptor (NMDAR) currents in male rat infralimbic prefrontal pyramidal neurons. Moreover, these effects were prevented and reversed by blockade of NMDARs containing the GluN2B subunit. Our results show that this signaling cascade bidirectionally regulates extinction of a cocaine-induced conditioned place preference (CPP), a task that requires behavioral flexibility. Blockade of infralimbic TrkB receptors or GluN2B-containing NMDARs disrupted consolidation of extinction of the CPP. In contrast, extinction was strengthened by potentiation of TrkB receptor activity with infralimbic infusions of BDNF or systemic injections of 7,8 dihydroxyflavone (7,8DHF), the newly synthesized TrkB receptor agonist. The 7,8DHF-induced enhancement of extinction was prevented by infralimbic infusions of a GluN2B-specific receptor antagonist, demonstrating that TrkB receptor activation enhances extinction of cocaine-CPP via GluN2B-containing NMDARs. Together, infralimbic TrkB receptor activation strengthens GluN2B-containing NMDAR currents to support extinction learning. TrkB receptor agonists would therefore be useful as pharmacological adjuncts for extinction-based therapies for treatment of psychiatric disorders associated with reduced BDNF activity.

Indexed as

AnimalsAssociation LearningBrain-Derived Neurotrophic FactorCocaineConditioning, OperantDopamine Uptake InhibitorsExtinction, PsychologicalFearFlavanonesMaleNeuronsRatsReceptors, N-Methyl-D-AspartateReceptor, trkBSelf Administration7,8-dihydroxyflavanoneBrain-Derived Neurotrophic FactorCocaineDopamine Uptake InhibitorsFlavanonesNR2B NMDA receptorReceptors, N-Methyl-D-AspartateReceptor, trkBbrain-derived neurotrophic factorextinction learningmedial prefrontal cortexNR2B-containing NMDA receptorpatch-clamp electrophysiologyTrkB receptor

Identifiers

PMID24760865
PMCPMC3996223
OpenAlexW2003722700

What OpenQuestion holds

Textmetadata
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.