Evidence map›Paper›PMID 34386734›Full record

ArticleiScience2021

Dendritic Kv4.2 potassium channels selectively mediate spatial pattern separation in the dentate gyrus.

Marie Oulé, Erika Atucha, Tenyse M Wells, Tamar Macharadze, Magdalena M Sauvage, Michael R Kreutz, Jeffrey Lopez-Rojas

Open access · goldAbstract read
In one paragraph

Article in iScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 33% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Kv4.2 Regulates Basal Synaptic Strength by Inhibiting R-Type Calcium Channels in the Hippocampus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  3. Article
  4. Article
  5. Design of Ultrapotent Genetically Encoded Inhibitors of Kv4.2 for Gating Neural Plasticity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  6. 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

7 authors at 4 institutions in 2 countries.

Marie OuléResearch Group Neuroplasticity, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Erika AtuchaFunctional Architecture of Memory Department, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Tenyse M WellsFunctional Architecture of Memory Department, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Tamar MacharadzeResearch Group Neuroplasticity, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Magdalena M SauvageFunctional Architecture of Memory Department, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Michael R KreutzResearch Group Neuroplasticity, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Jeffrey Lopez-RojasResearch Group Neuroplasticity, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany.
Leibniz Institute for Neurobiology · DECenter for Behavioral Brain Sciences · DEOtto-von-Guericke-Universität Magdeburg · DEUniversität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The capacity to distinguish comparable experiences is fundamental for the recall of similar memories and has been proposed to require pattern separation in the dentate gyrus (DG). However, the cellular mechanisms by which mature granule cells (GCs) of the DG accomplish this function are poorly characterized. Here, we show that Kv4.2 channels selectively modulate the excitability of medial dendrites of dentate GCs. These dendrites are targeted by the medial entorhinal cortex, the main source of spatial inputs to the DG. Accordingly, we found that the spatial pattern separation capability of animals lacking the Kv4.2 channel is significantly impaired. This points to the role of intrinsic excitability in supporting the mnemonic function of the dentate and to the Kv4.2 channel as a candidate substrate promoting spatial pattern separation.

Indexed as

Biological sciencesCellular neuroscienceNeuroscience

Identifiers

PMID34386734
PMCPMC8346659
OpenAlexW3185200811

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.