Evidence map›Paper›PMID 25609103›Full record

ArticleJournal of neurophysiology2015

Synchronization of action potentials during low-magnesium-induced bursting.

Sarah E Johnson, John L Hudson, Jaideep Kapur

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Connectivity and Neuronal Synchrony during Seizures.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  3. Article
  4. Progesterone receptor activation regulates seizure susceptibility.Annals of clinical and translational neurology · 2019
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. 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

3 authors.

Sarah E JohnsonDepartment of Chemical Engineering, University of Virginia, Charlottesville, Virginia; and.
John L HudsonDepartment of Chemical Engineering, University of Virginia, Charlottesville, Virginia; and.
Jaideep KapurDepartments of Neurology and Neuroscience, University of Virginia School of Medicine, Charlottesville, Virginia jk8t@virginia.edu.

Funding

BIOTECHNOLOGY TRAINING PROGRAMT32GM008715 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LAURIE, GORDON WILLIAM · 2000 to 2019
$6.6M
TREATMENT OF STATUS EPILEPTICUSR01NS040337 · NINDS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI KAPUR, JAIDEEP · 2000 to 2021
$5.0M
Neurosteroid Regulation of SeizuresR01NS044370 · NINDS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI KAPUR, JAIDEEP · 2003 to 2017
$4.1M
Mechanism and Treatment of nerve agent-induced seizuresU01NS058204 · NINDS · UNIVERSITY OF VIRGINIA · PI KAPUR, JAIDEEP · 2006 to 2010
$2.3M
NIGMS NIH HHS T32 GM008715NIGMS NIH HHS T32-GM-008715NINDS NIH HHS R01 NS040337NINDS NIH HHS R01-NS-040337NINDS NIH HHS R01 NS044370NINDS NIH HHS , RO1-NS-044370NINDS NIH HHS UO1-NS-58204
6 · The paper itself

Abstract

The relationship between mono- and polysynaptic strength and action potential synchronization was explored using a reduced external Mg(2+) model. Single and dual whole cell patch-clamp recordings were performed in hippocampal cultures in three concentrations of external Mg(2+). In decreased Mg(2+) medium, the individual cells transitioned to spontaneous bursting behavior. In lowered Mg(2+) media the larger excitatory synaptic events were observed more frequently and fewer transmission failures occurred, suggesting strengthened synaptic transmission. The event synchronization was calculated for the neural action potentials of the cell pairs, and it increased in media where Mg(2+) concentration was lowered. Analysis of surrogate data where bursting was present, but no direct or indirect connections existed between the neurons, showed minimal action potential synchronization. This suggests the synchronization of action potentials is a product of the strengthening synaptic connections within neuronal networks.

Indexed as

Action PotentialsSynaptic TransmissionAnimalsCells, CulturedHippocampusMagnesiumPyramidal CellsRats, Sprague-DawleySynapsesMagnesiumaction potentialdual whole cell patch-clamphippocampal culturesynchronization

Identifiers

PMID25609103
PMCPMC4416584

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.