Evidence map›Paper›PMID 18556758›Full record

ArticleBiophysical journal2008

Computational modeling of three-dimensional electrodiffusion in biological systems: application to the node of Ranvier.

Courtney L Lopreore, Thomas M Bartol, Jay S Coggan, Daniel X Keller, Gina E Sosinsky, Mark H Ellisman, Terrence J Sejnowski

Abstract read
In one paragraph

Article in Biophysical journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

36 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Computing Extracellular Electric Potentials from Neuronal Simulations.Advances in experimental medicine and biology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  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

7 authors.

Courtney L LopreoreHoward Hughes Medical Institute, La Jolla, California 92037, USA.
Thomas M Bartol
Jay S Coggan
Daniel X Keller
Gina E Sosinsky
Mark H Ellisman
Terrence J Sejnowski

Funding

VOLUMETRIC CONTOUR-BASED SURFACE RECONSTRUCTIONP41RR004050 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PASQUALE, ELENA B · 1989 to 2011
$28.0M
STRUCTURE AND DYNAMICS OF CONNEXIN26 GAP JUNCTIONSR01GM065937 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PERKINS, GUY A · 2003 to 2016
$3.9M
MCell/DReAMM: A Microphysiological Modeling EnvironmentR01GM068630 · NIGMS · CARNEGIE-MELLON UNIVERSITY · PI STILES, JOEL R. · 2003 to 2006
$2.0M
Biocomputing: Integrating Molecular/Organ-Level FunctionP20EB001432 · NIBIB · TULANE UNIVERSITY OF LOUISIANA · PI GAVER, DONALD P. · 2003 to 2006
$1.5M
DYNAMICS OF MEMBRANE ORGANIZATION AT NODES OF RANVIERR01NS014718 · NINDS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI ELLISMAN, MARK H · 1986 to 2005
$1.4M
CRCNS: ASSEMBLING VISIBLE NEURONS FOR SIMULATIONR01NS046068 · NINDS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI ELLISMAN, MARK H · 2002 to 2005
$1.2M
Howard Hughes Medical InstituteNCRR NIH HHS P41 RR004050NCRR NIH HHS RR004050NIBIB NIH HHS 1 P20 EB001432-01NIBIB NIH HHS P20 EB001432NIGMS NIH HHS GM065937NIGMS NIH HHS GM068630NIGMS NIH HHS R01 GM065937NIGMS NIH HHS R01 GM068630NINDS NIH HHS NS014718NINDS NIH HHS NS046068NINDS NIH HHS R01 NS014718NINDS NIH HHS R01 NS046068
6 · The paper itself

Abstract

A computational model is presented for the simulation of three-dimensional electrodiffusion of ions. Finite volume techniques were used to solve the Poisson-Nernst-Planck equation, and a dual Delaunay-Voronoi mesh was constructed to evaluate fluxes of ions, as well as resulting electric potentials. The algorithm has been validated and applied to a generalized node of Ranvier, where numerical results for computed action potentials agree well with cable model predictions for large clusters of voltage-gated ion channels. At smaller channel clusters, however, the three-dimensional electrodiffusion predictions diverge from the cable model predictions and show a broadening of the action potential, indicating a significant effect due to each channel's own local electric field. The node of Ranvier complex is an elaborate organization of membrane-bound aqueous compartments, and the model presented here represents what we believe is a significant first step in simulating electrophysiological events with combined realistic structural and physiological data.

Indexed as

ElectricityModels, BiologicalAction PotentialsCell MembraneComputer SimulationDiffusionIon Channel GatingPotassium ChannelsRanvier's NodesReproducibility of ResultsSodium ChannelsPotassium ChannelsSodium Channels

Identifiers

PMID18556758
PMCPMC2527256

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.