Evidence map›Paper›PMID 31145471›Full record

ArticleThe Journal of physiology2019

A molecular rheostat: Kv2.1 currents maintain or suppress repetitive firing in motoneurons.

Shannon H Romer, Adam S Deardorff, Robert E W Fyffe

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. The Electrically Silent Kv5.1 Subunit Forms Heteromeric Kv2 Channels in Cortical Neurons and Confers Distinct Functional Properties.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  3. Glucocorticoids Rapidly Modulate CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Mechanism of use-dependent Kv2 channel inhibition by RY785.The Journal of general physiology · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Pharmacological Approaches to Studying Potassium Channels.Handbook of experimental pharmacology · 2021
    Review
  17. Article
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

Shannon H RomerNeuroscience, Cell Biology & Physiology, Boonshoft School of Medicine, Wright State University, Fairborn, OH, 45435, USA.ORCID 0000-0002-0211-6926
Adam S DeardorffNeuroscience, Cell Biology & Physiology, Boonshoft School of Medicine, Wright State University, Fairborn, OH, 45435, USA.
Robert E W FyffeNeuroscience, Cell Biology & Physiology, Boonshoft School of Medicine, Wright State University, Fairborn, OH, 45435, USA.
Wright State University · US

Funding

Synaptic Function: Effects of the Nerve Injury, Repair, and Altered ActivityP01NS057228 · NINDS · WRIGHT STATE UNIVERSITY · PI COPE, TIMOTHY C · 2007 to 2017
$9.1M
NINDS NIH HHS P01 NS057228
6 · The paper itself

Abstract

key pointsKv2 currents maintain and regulate motoneuron (MN) repetitive firing properties. Kv2.1 channel clustering properties are dynamic and respond to both high and low activity conditions. The enzyme calcineurin regulates Kv2.1 ion channel declustering. In patholophysiological conditions of high activity, Kv2.1 channels homeostatically reduce MN repetitive firing. Modulation of Kv2.1 channel kinetics and clustering allows these channels to act in a variable way across a spectrum of MN activity states. ABSTRACT: Kv2.1 channels are widely expressed in the central nervous system, including in spinal motoneurons (MNs) where they aggregate as distinct membrane clusters associated with highly regulated signalling ensembles at specific postsynaptic sites. Multiple roles for Kv2 channels have been proposed but the physiological role of Kv2.1 ion channels in mammalian spinal MNs is unknown. To determine the contribution of Kv2.1 channels to rat α-motoneuron activity, the Kv2 inhibitor stromatoxin was used to block Kv2 currents in whole-cell current clamp electrophysiological recordings in rat lumbar MNs. The results indicate that Kv2 currents permit shorter interspike intervals and higher repetitive firing rates, possibly by relieving Na

Indexed as

Action PotentialsAnimalsElectrophysiological PhenomenaFemaleIon ChannelsMaleMotor NeuronsPatch-Clamp TechniquesRatsRats, Sprague-DawleyShab Potassium ChannelsSpinal CordIon ChannelsKcnb1 protein, ratShab Potassium ChannelsC-boutonshomeostaticKv2.1motoneuronsrepetitive firing

Identifiers

PMID31145471
PMCPMC12967292
OpenAlexW2947607845

What OpenQuestion holds

Textmetadata
LicenceTDM
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.