Modifying the Models of Calcium Dynamics in Astrocytes by Ryanodine Release

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.17537/2021.16.86

Ключевые слова: astrocyte, cicr, mathematical model

Аннотация: The influence of ryanodine channels on the cytosole Ca2+dynamics was studied. We added the equations for ryanodine receptors and voltage-gated calcium channels into the original De Pitta et al. model of Ca2+. The derived model was shown to have significantly wider range of predictions: we derived the frequency of cytosole calcium sПоказать полностьюpontaneous oscillations (which are absent in the original De Pitta et al. model) for various existing models of Ca2+signalling in astrocytes. Particularly, the initial De Pitta et al. results can be converted to either Lavrentovich and Hemkin model or in the Dupont et al model predictions. The absence of the Ca2+oscillations in astrocytes with the active ryanodine channels only was recently reported. This behaviour can be achieved in our model predictions for the certain values of parameters, which are supposedly responsible for the bifurcation landscape between the oscillatory and non-oscillatory dynamics of cytosol Ca2+in astrocytes. We also investigated the interplay between the spontaneous and glutamate-triggered oscillations. © 2021. All Rights Reserved.

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Издание

Журнал: Mathematical Biology and Bioinformatics

Выпуск журнала: Vol. 16, Is. 1

Номера страниц: 86-100

ISSN журнала: 19946538

Издатель: Russian Academy of Sciences,Department of the Earth Sciences

Персоны

  • Fritsler Y. (Siberian Federal University, Krasnoyarsk, Russian Federation)
  • Bartsev S. (Institute of Biophysics SB RAS, Krasnoyarsk, Russian Federation)
  • Belozor O. (Krasnoyarsk State Medical University, Krasnoyarsk, Russian Federation)
  • Ant. S. (Krasnoyarsk State Medical University, Krasnoyarsk, Russian Federation)
  • And. S. (Siberian Federal University, Krasnoyarsk, Russian Federation)

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