Evidence map›Paper›PMID 24729442›Full record

ArticleHippocampus2014

Early memory formation disrupted by atypical PKC inhibitor ZIP in the medial prefrontal cortex but not hippocampus.

Obaro Evuarherhe, Gareth R I Barker, Giorgia Savalli, Elizabeth C Warburton, Malcolm W Brown

Abstract read
In one paragraph

Article in Hippocampus, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.4field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Dopamine DJournal of biomedical science · 2020
    Article
  3. Reversing Cocaine-Induced Plasticity with Zeta Inhibitory Peptide.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Overexpression of Protein Kinase Mζ in the Prelimbic Cortex Enhances the Formation of Long-Term Fear Memory.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    Article
  11. Neural circuitry for rat recognition memory.Behavioural brain research · 2015
    Review
  12. Article
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 2 institutions in 2 countries.

Obaro EvuarherheDepartment of Physiology and Pharmacology, University of Bristol, School of Medical Sciences, Bristol, BS8 1TD, United Kingdom.
Gareth R I Barker
Giorgia Savalli
Elizabeth C Warburton
Malcolm W Brown
University of Bristol · GBMedical University of Vienna · AT

Funding

Medical Research Council G0401403Wellcome Trust 087855Wellcome Trust 087855/Z/08/Z
6 · The paper itself

Abstract

Atypical isoforms of protein kinase C (aPKCs; particularly protein kinase M zeta: PKMζ) have been hypothesized to be necessary and sufficient for the maintenance of long-term potentiation (LTP) and long term memory by maintaining postsynaptic AMPA receptors via the GluA2 subunit. A myristoylated PKMζ pseudosubstrate peptide (ZIP) blocks PKMζ activity. We examined the actions of ZIP in medial prefrontal cortex (mPFC) and hippocampus in associative recognition memory in rats during early memory formation and memory maintenance. ZIP infusion in either hippocampus or mPFC impaired memory maintenance. However, early memory formation was impaired by ZIP in mPFC but not hippocampus; and blocking GluA2-dependent removal of AMPA receptors did not affect this impairment caused by ZIP in the mPFC. The findings indicate: (i) a difference in the actions of ZIP in hippocampus and medial prefrontal cortex, and (ii) a GluA2-independent target of ZIP (possibly PKCλ) in the mPFC during early memory formation.

Indexed as

AnimalsAssociation LearningCell-Penetrating PeptidesEndocytosisExploratory BehaviorHippocampusLipopeptidesMaleMemoryNeuropsychological TestsPrefrontal CortexProtein Kinase CProtein Kinase InhibitorsRatsReceptors, AMPACell-Penetrating Peptidesglutamate receptor ionotropic, AMPA 2LipopeptidesProtein Kinase CProtein Kinase Inhibitorsprotein kinase M zeta, ratReceptors, AMPAzeta-inhibitory peptideencodinghippocampusmaintenancemedial prefrontal cortexrecognition memory

Identifiers

PMID24729442
PMCPMC4285083
OpenAlexW1602048460

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.