Evidence map›Paper›PMID 20383136›Full record

ArticleNature neuroscience2010

PKMzeta maintains memories by regulating GluR2-dependent AMPA receptor trafficking.

Paola Virginia Migues, Oliver Hardt, Dong Chuan Wu, Karine Gamache, Todd Charlton Sacktor, Yu Tian Wang, Karim Nader

Abstract read
PubMed Publisher
In one paragraph

Article in Nature neuroscience, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 180 papers.

0numbers the graph read from it
0cells of the map it votes in
180citing papers in PubMed
12.6field-weighted citation impact, top 1% 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

180 citing papers in PubMed, 286 citations in OpenAlex.

  1. Sleep-dependent declarative memory consolidation--unaffected after blocking NMDA or AMPA receptors but enhanced by NMDA coagonist D-cycloserine.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2013
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120 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 2 countries.

Paola Virginia MiguesDepartment of Psychology, McGill University, Montreal, Quebec, Canada. virginia.migues@mcgill.ca
Oliver Hardt
Dong Chuan Wu
Karine Gamache
Todd Charlton Sacktor
Yu Tian Wang
Karim Nader
McGill University · CAUniversity of British Columbia · CASUNY Downstate Health Sciences University · US

Funding

PROTEIN KINASE C ISOZYMES IN HIPPOCAMPAL PLASTICITYR01MH053576 · NIMH · SUNY DOWNSTATE MEDICAL CENTER · PI SACKTOR, TODD C · 2000 to 2014
$4.9M
Regulation and Neural Function of Atypical PKCR37MH057068 · NIMH · SUNY DOWNSTATE MEDICAL CENTER · PI SACKTOR, TODD C · 2011 to 2020
$4.0M
Regulation of Neural Function of Atypical PKCR01MH057068 · NIMH · SUNY DOWNSTATE MEDICAL CENTER · PI SACKTOR, TODD C · 1997 to 2010
$3.3M
Canadian Institutes of Health ResearchNIMH NIH HHS MH57068NIMH NIH HHS R01 MH53576
6 · The paper itself

Abstract

The maintenance of long-term memory in hippocampus, neocortex and amygdala requires the persistent action of the atypical protein kinase C isoform, protein kinase Mzeta (PKMzeta). We found that inactivating PKMzeta in the amygdala impaired fear memory in rats and that the extent of the impairment was positively correlated with a decrease in postsynaptic GluR2. Blocking the GluR2-dependent removal of postsynaptic AMPA receptors abolished the behavioral impairment caused by PKMzeta inhibition and the associated decrease in postsynaptic GluR2 expression, which correlated with performance. Similarly, blocking this pathway for removal of GluR2-containing receptors from postsynaptic sites in amygdala slices prevented the reversal of long-term potentiation caused by inactivating PKMzeta. Similar behavioral results were obtained in the hippocampus for unreinforced recognition memory of object location. Together, these findings indicate that PKMzeta maintains long-term memory by regulating the trafficking of GluR2-containing AMPA receptors, the postsynaptic expression of which directly predicts memory retention.

Indexed as

Analysis of VarianceAnimalsAvidinBehavior, AnimalBiotinylationCerebral CortexConditioning, PsychologicalElectroshockFearFreezing Reaction, CatalepticHippocampusLong-Term PotentiationMaleMemoryPatch-Clamp TechniquesPeptidesAvidinglutamate receptor ionotropic, AMPA 2neutravidinPeptidesProtein Kinase Cprotein kinase M zeta, ratReceptors, AMPA

Identifiers

PMID20383136
OpenAlexW1974491267

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.