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Modeling Neural Immune Signaling of Episodic and Chronic Migraine Using Spreading Depression In Vitro
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Turing-like structures in a functional model of cortical spreading depression.

A Yu Verisokin1, D V Verveyko1, D E Postnov2

  • 1Department of Theoretical Physics, Kursk State University, Radishcheva st., 33, 305000, Kursk, Russia.

Physical Review. E
|January 20, 2018
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Summary

Cortical spreading depression (CSD) dynamics were modeled, revealing that neurovascular coupling influences CSD front propagation and pattern formation. This research shows that vascular coupling and local regulation create stationary Turing-like patterns during CSD events.

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Area of Science:

  • Neuroscience
  • Computational Biology
  • Physiology

Background:

  • Cortical spreading depression (CSD) involves neuronal hyperactivity followed by depression, impacting conditions like migraines and stroke.
  • The complex spatiotemporal dynamics of CSD formation and evolution remain poorly understood despite existing models.
  • Neurovascular coupling and cerebral blood flow changes are implicated in CSD but their precise dynamical roles require further investigation.

Purpose of the Study:

  • To investigate the dynamical consequences of incorporating neurovascular coupling and blood flow redistribution into a mathematical model of CSD.
  • To analyze how these new pathways affect the formation, propagation speed, and two-dimensional pattern features of the CSD front.
  • To elucidate the mechanisms behind complex pattern formation during CSD events.

Main Methods:

  • Development of a mathematical model for cortical spreading depression incorporating neurovascular coupling and cerebral blood flow.
  • Simulation of the model to analyze changes in CSD front dynamics, including propagation speed and pattern formation.
  • Examination of two-dimensional pattern evolution under the influence of vascular-mediated spatial coupling and local regulatory mechanisms.

Main Results:

  • The model demonstrates that neurovascular coupling significantly alters CSD front propagation and pattern formation.
  • The interplay between vascular-mediated spatial coupling and local regulatory mechanisms leads to the emergence of stationary patterns.
  • Specifically, the study identified the formation of stationary Turing-like patterns during CSD events due to these combined effects.

Conclusions:

  • The inclusion of neurovascular coupling and blood flow dynamics provides crucial insights into CSD mechanisms.
  • The formation of stationary Turing-like patterns is a key emergent property resulting from the interaction of vascular coupling and local regulation.
  • This research advances our understanding of the complex spatiotemporal dynamics underlying CSD and related neurological phenomena.