On the integration of physiological mechanisms in the nervous tissue using the MTIP: synaptic plasticity depending on neurons-astrocytes-capillaries interactions.
The objective in this work is twofold: (i) to illustrate the use of the Mathematical Theory of Integrative Physiology (MTIP) [13], that is a general theory and practical method for the systematic and progressive mathematical integration of physiological mechanisms; (ii) to study a complex neurobiological system taken as an example, i.e., the synaptic plasticity depending on brain activity, on astrocytic and neuronal metabolism, and on brain hemodynamics. The functional organization of the nervous tissue is presented in the framework of the MTIP, the ultimate objective being the study of learning and memory by coupling the three networks of neurons, astrocytes and capillaries. Specifically in this paper, we study the influence of the variation of capillaries arterial oxygen on the induction of LTP/LTD by coupling validated mathematical models of AMPA, NMDA, VDCC channels, calcium current in the dendritic spine, vesicular glutamate dynamics in the presynaptic bouton derived from glycolysis and neuronal glucose, mitochondrial respiration, Ca/Na pumps, glycolysis, and calcium dynamics in the astrocytes, hemodynamics of the capillaries. The integration of all these models is discussed by claiming the advantages of using a common framework and a specific dedicated computing system, PhysioMatica.
Chauvet
Pierre
P
Centre de Recherche et d'Etudes sur les Applications des Mathématiques, IMA, 44 rue Rabelais, BP808 49008 Angers Cedex 01, France.
Dupont
Jean-Marc
JM
Chauvet
Gilbert A
GA
D001253:Astrocytes / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D015220:Calcium Channels / Q000502:physiology; D020013:Calcium Signaling / Q000502:physiology; D002196:Capillaries / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology; D009473:Neuronal Plasticity / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D010101:Oxygen Consumption / Q000502:physiology; D017470:Receptors, Glutamate / Q000502:physiology; D009435:Synaptic Transmission / Q000502:physiology
D015220:Calcium Channels; D017470:Receptors, Glutamate