Evidence map›Paper›PMID 24790266›Full record

ArticleSleep2014

The CaV2.3 R-type voltage-gated Ca2+ channel in mouse sleep architecture.

Magdalena Elisabeth Siwek, Ralf Müller, Christina Henseler, Karl Broich, Anna Papazoglou, Marco Weiergräber

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Sleep, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. CaScientific reports · 2025
    Article
  5. Voltage Gated Ion Channels and Sleep.The Journal of membrane biology · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Breeding of CaScientific reports · 2021
    Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. In vitro and in vivo phosphorylation of the CaChannels (Austin, Tex.) · 2018
    Review
  15. Article
  16. Article
  17. Review: CaThe open neurology journal · 2016
    Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Magdalena Elisabeth SiwekFederal Institute for Drugs and Medical Devices, Bonn, BfArM, Germany.
Ralf MüllerDepartment of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany.
Christina HenselerFederal Institute for Drugs and Medical Devices, Bonn, BfArM, Germany.
Karl BroichFederal Institute for Drugs and Medical Devices, Bonn, BfArM, Germany.
Anna PapazoglouFederal Institute for Drugs and Medical Devices, Bonn, BfArM, Germany.
Marco WeiergräberFederal Institute for Drugs and Medical Devices, Bonn, BfArM, Germany ; Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany.
Federal Institute for Drugs and Medical Devices · DEUniversity of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesVoltage-gated Ca(2+) channels (VGCCs) are key elements in mediating thalamocortical rhythmicity. Low-voltage activated (LVA) CaV 3 T-type Ca(2+) channels have been related to thalamic rebound burst firing and to generation of non-rapid eye movement (NREM) sleep. High-voltage activated (HVA) CaV 1 L-type Ca(2+) channels, on the opposite, favor the tonic mode of action associated with higher levels of vigilance. However, the role of the HVA Non-L-type CaV2.3 Ca(2+) channels, which are predominantly expressed in the reticular thalamic nucleus (RTN), still remains unclear. Recently, CaV2.3(-/-) mice were reported to exhibit altered spike-wave discharge (SWD)/absence seizure susceptibility supported by the observation that CaV2.3 mediated Ca(2+) influx into RTN neurons can trigger small-conductance Ca(2+)-activated K(+)-channel type 2 (SK2) currents capable of maintaining thalamic burst activity. Based on these studies we investigated the role of CaV2.3 R-type Ca(2+) channels in rodent sleep.

methodsThe role of CaV2.3 Ca(2+) channels was analyzed in CaV2.3(-/-) mice and controls in both spontaneous and artificial urethane-induced sleep, using implantable video-EEG radiotelemetry. Data were analyzed for alterations in sleep architecture using sleep staging software and time-frequency analysis.

resultsCaV2.3 deficient mice exhibited reduced wake duration and increased slow-wave sleep (SWS). Whereas mean sleep stage durations remained unchanged, the total number of SWS epochs was increased in CaV2.3(-/-) mice. Additional changes were observed for sleep stage transitions and EEG amplitudes. Furthermore, urethane-induced SWS mimicked spontaneous sleep results obtained from CaV2.3 deficient mice. Quantitative Real-time PCR did not reveal changes in thalamic CaV3 T-type Ca(2+) channel expression. The detailed mechanisms of SWS increase in CaV2.3(-/-) mice remain to be determined.

conclusionsLow-voltage activated CaV2.3 R-type Ca(2+) channels in the thalamocortical loop and extra-thalamocortical circuitries substantially regulate rodent sleep architecture thus representing a novel potential target for pharmacological treatment of sleep disorders in the future.

Indexed as

AnimalsCalcium Channels, R-TypeCation Transport ProteinsCerebral CortexElectroencephalographyMaleMiceNeuronsPeriodicitySleepSleep StagesThalamusCacna1e protein, mouseCalcium Channels, R-TypeCation Transport Proteinsrapid eye movement (REM)slow-wave sleep (SWS)thalamocortical circuitryvigilance

Identifiers

PMID24790266
PMCPMC3985108
OpenAlexW1966732371

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.