Evidence map›Paper›PMID 19641116›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

L-type voltage-dependent calcium channel antagonists impair perirhinal long-term recognition memory and plasticity processes.

Ana Seoane, Peter V Massey, Hannah Keen, Zafar I Bashir, Malcolm W Brown

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.8field-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

26 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Intracellular emetic signaling evoked by the L-type CaEuropean journal of pharmacology · 2018
    Article
  5. Pharmacological Strategies for Manipulating Plant CaInternational journal of molecular sciences · 2018
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. In search of a recognition memory engram.Neuroscience and biobehavioral reviews · 2015
    Review
  11. BDNF release is required for the behavioral actions of ketamine.The international journal of neuropsychopharmacology · 2014
    Article
  12. Article
  13. Hippocampal molecular mechanisms involved in the enhancement of fear extinction caused by exposure to novelty.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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 1 country.

Ana SeoaneMedical Research Council Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol, United Kingdom.
Peter V Massey
Hannah Keen
Zafar I Bashir
Malcolm W Brown
Medical Research Council · GBUniversity of Bristol · GB

Funding

Medical Research Council G0401403Medical Research Council G9713086
6 · The paper itself

Abstract

The perirhinal cortex of the temporal lobe is essential for the familiarity discrimination component of recognition memory. In view of the importance of changes in calcium ion concentration for synaptic plasticity, the present study examined the effects of L-type voltage-dependent calcium channel (VDCC) antagonism on rat perirhinal-based familiarity discrimination processes and plasticity including long-term depression (LTD), long-term potentiation (LTP), and depotentiation. Single doses of three different types of L-type VDCC antagonists, verapamil, diltiazem, and nifedipine, administered systemically, or verapamil administered locally into the perirhinal cortex, impaired acquisition of long-term (24 h) but not shorter-term (20 min) recognition memory. L-type VDCC antagonism also disrupted memory retrieval after 24 h but not 20 min. Differential neuronal activation produced by viewing novel or familiar visual stimuli was measured by Fos expression. L-type VDCC antagonism by verapamil in perirhinal cortex during memory acquisition disrupted the normal pattern of differential Fos expression, so paralleling the antagonist-induced memory impairment. In slices of perirhinal cortex maintained in vitro, verapamil was without effect on baseline excitability or LTP but blocked LTD and depotentiation. The consistency of effects across the behavioral and cellular levels of analysis provides strong evidence for the involvement of perirhinal L-type VDCCs in long-term recognition memory processes.

Indexed as

AnimalsCalcium Channel BlockersCalcium Channels, L-TypeDiltiazemIn Vitro TechniquesLong-Term PotentiationLong-Term Synaptic DepressionNeuronal PlasticityNeuronsNifedipineProto-Oncogene Proteins c-fosRatsRecognition, PsychologySynapsesTemporal LobeTime FactorsCalcium Channel BlockersCalcium Channels, L-TypeDiltiazemNifedipineProto-Oncogene Proteins c-fosVerapamil

Identifiers

PMID19641116
PMCPMC6666523
OpenAlexW2130118861

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.