Evidence map›Paper›PMID 22304729›Full record

ArticleMolecular brain2012

Rapid synaptic potentiation within the anterior cingulate cortex mediates trace fear learning.

Giannina Descalzi, Xiang-Yao Li, Tao Chen, Valentina Mercaldo, Kohei Koga, Min Zhuo

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Article
  3. Enhanced long-term potentiation in the anterior cingulate cortex of tree shrew.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. SCRAPPER Selectively Contributes to Spontaneous Release and Presynaptic Long-Term Potentiation in the Anterior Cingulate Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  15. Review
  16. Review
  17. Effects of dopamine D1 modulation of the anterior cingulate cortex in a fear conditioning procedure.Progress in neuro-psychopharmacology & biological psychiatry · 2016
    Article
  18. Review
  19. Article
  20. Review
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

6 authors at 3 institutions in 2 countries.

Giannina DescalziDepartment of Physiology, Faculty of Medicine, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada.
Xiang-Yao Li
Tao Chen
Valentina Mercaldo
Kohei Koga
Min Zhuo
Canada Research Chairs · CAXi'an Jiaotong University · CNUniversity of Toronto · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Although the cortex has been extensively studied in long-term memory storage, less emphasis has been placed on immediate cortical contributions to fear memory formation. AMPA receptor plasticity is strongly implicated in learning and memory, and studies have identified calcium permeable AMPA receptors (CP-AMPARs) as mediators of synaptic strengthening. Trace fear learning engages the anterior cingulate cortex (ACC), but whether plastic events occur within the ACC in response to trace fear learning, and whether GluN2B subunits are required remains unknown. Here we show that the ACC is necessary for trace fear learning, and shows a rapid 20% upregulation of membrane AMPA receptor GluA1 subunits that is evident immediately after conditioning. Inhibition of NMDA receptor GluN2B subunits during training prevented the upregulation, and disrupted trace fear memory retrieval 48 h later. Furthermore, intra-ACC injections of the CP-AMPAR channel antagonist, 1-naphthylacetyl spermine (NASPM) immediately following trace fear conditioning blocked 24 h fear memory retrieval. Accordingly, whole cell patch clamp recordings from c-fos positive and c-fos negative neurons within the ACC in response to trace fear learning revealed an increased sensitivity to NASPM in recently activated neurons that was reversed by reconsolidation update extinction. Our results suggest that trace fear learning is mediated through rapid GluN2B dependent trafficking of CP-AMPARs, and present in vivo evidence that CP-AMPAR activity within the ACC immediately after conditioning is necessary for subsequent memory consolidation processes.

Indexed as

AnimalsCalciumCell MembraneCell Membrane PermeabilityExcitatory Postsynaptic PotentialsExtinction, PsychologicalFearGyrus CinguliIn Vitro TechniquesLearningLong-Term PotentiationMaleMiceMice, Inbred C57BLModels, NeurologicalProtein Subunits1-naphthylacetylspermineCalciumNR2B NMDA receptorProtein SubunitsReceptors, AMPAReceptors, N-Methyl-D-AspartateSpermine

Identifiers

PMID22304729
PMCPMC3395850
OpenAlexW2135162718

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.