Evidence map›Paper›PMID 24976583›Full record

ArticleBrain research2014

Egr-1 mRNA expression patterns in the prefrontal cortex, hippocampus, and amygdala during variants of contextual fear conditioning in adolescent rats.

W B Schreiber, A Asok, S A Jablonski, J B Rosen, M E Stanton

Open access · greenAbstract readComparative Study
In one paragraph

Article in Brain research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-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

16 citing papers in PubMed, 23 citations in OpenAlex.

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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.

W B SchreiberDepartment of Psychological & Brain Sciences, University of Delaware, Newark, DE 19716, USA.
A AsokDepartment of Psychological & Brain Sciences, University of Delaware, Newark, DE 19716, USA.
S A JablonskiDepartment of Psychological & Brain Sciences, University of Delaware, Newark, DE 19716, USA.
J B RosenDepartment of Psychological & Brain Sciences, University of Delaware, Newark, DE 19716, USA.
M E StantonDepartment of Psychological & Brain Sciences, University of Delaware, Newark, DE 19716, USA. Electronic address: stanton@udel.edu.
University of Delaware · US

Funding

Updated confocal microscope in the Imaging Core facility to support biomedical researchP20GM103653 · NIGMS · DELAWARE STATE UNIVERSITY · PI HARRINGTON, MELISSA A · 2012 to 2022
$22.7M
TRAINING PROGRAM IN TERATOLOGYT32ES007051 · NIEHS · CINCINNATI CHILDRENS HOSP MED CTR · PI VORHEES, CHARLES V · 1985 to 2018
$4.1M
Mechanisms of Context Conditioning in the Developing RatR01HD075066 · NICHD · UNIVERSITY OF DELAWARE · PI ROSEN, JEFFREY B, STANTON, MARK E. · 2014 to 2016
$863k
Mechanisms of Trace Fear Conditioning in the Developing RatR21HD070662 · NICHD · UNIVERSITY OF DELAWARE · PI HUNT, PAMELA S, ROSEN, JEFFREY B · 2011 to 2012
$414k
Mechanisms of configural learning in a rat model of FASDF31AA021317 · NIAAA · UNIVERSITY OF DELAWARE · PI SCHANDLE, SARAH JABLONSKI · 2012 to 2013
$48k
NIAAA NIH HHS 1-F31-AA021317-01NIAAA NIH HHS F31 AA021317NICHD NIH HHS 1-R21-HD070662-01NICHD NIH HHS R01 HD075066NICHD NIH HHS R21 HD070662NIEHS NIH HHS T32 ES007051NIGMS NIH HHS P20 GM103653
6 · The paper itself

Abstract

We report activation of the immediate-early gene Egr-1 in the lateral amygdala (LA), hippocampus (CA1), and medial prefrontal cortex (mPFC) 30-min following the training phase in the context pre-exposure facilitation effect (CPFE) and standard context fear conditioning (180 s context exposure→shock). On day one of the CPFE paradigm, postnatal day (PD) 31 rats (±1) were pre-exposed to Context A (Pre) or Context B (Alt-Pre) for 5 min followed by five additional 1-min exposures. A day later, Pre and Alt-Pre rats received a 2-s, 1.5 mA footshock immediately upon placement in Context A. Animals included in in situ hybridization were then sacrificed 30 (±3) min later. On day three, the behaviorally-tested Pre rats showed significantly more fear-conditioned freezing in Context A than Alt-Pre rats. Standard context fear conditioning groups showed much greater freezing than the Pre group, as well as no shock and immediate-shock controls. Thirty minutes after immediate shock training, Pre rats showed increased Egr-1 mRNA in the prelimbic mPFC relative to Alt-Pre rats. Standard context conditioning selectively increased Egr-1 in CA1. In the LA and mPFC, Egr-1 increased to a similar extent in no shock, immediate shock, and standard context conditioning relative to homecage controls. The present study demonstrates that Egr-1 mRNA expression has a complex relationship to fear learning in different brain regions and variants of context conditioning.

Indexed as

Genes, Immediate-EarlyAge FactorsAmygdalaAnimalsConditioning, ClassicalEarly Growth Response Protein 1ElectroshockFearFemaleFreezing Reaction, CatalepticHandling, PsychologicalHippocampusMaleNerve Tissue ProteinsNeuronal PlasticityPrefrontal CortexEarly Growth Response Protein 1Egr1 protein, ratNerve Tissue ProteinsRNA, MessengerAmygdalaContext fear conditioningCPFEEgr-1HippocampusPrefrontal cortex

Identifiers

PMID24976583
PMCPMC4138218
OpenAlexW2040886439

What OpenQuestion holds

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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.