Journal
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
Volume 47, Issue 6, Pages 665-675Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11517-009-0433-4
Keywords
Myometrial ionic currents; Uterine excitability; Voltage clamp; Action potential; Electrophysiological model
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Funding
- Picardy Region, France
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The uterine electrical activity is an efficient parameter to study the uterine contractility. In order to understand the ionic mechanisms responsible for its generation, we aimed at building a mathematical model of the uterine cell electrical activity based upon the physiological mechanisms. First, based on the voltage clamp experiments found in the literature, we focus on the principal ionic channels and their cognate currents involved in the generation of this electrical activity. Second, we provide the methodology of formulations of uterine ionic currents derived from a wide range of electrophysiological data. The model is validated step by step by comparing simulated voltage-clamp results with the experimental ones. The model reproduces successfully the generation of single spikes or trains of action potentials that fit with the experimental data. It allows analyzing ionic channels implications. Likewise, the calcium-dependent conductance influences significantly the cellular oscillatory behavior.
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