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An ODE (ordinary differential equation) model is a set of differential equations involving functions of only one independent variable and one or more of their derivatives with respect to that variable. ODEs are the most widespread formalism to model dynamical systems in science and engineering. In systems biology, many biological processes such as gene regulation and signal transduction can be modeled by reaction-rate equations expressing the rate of production of one species (e.g., protein, mRNA, metabolite, or small molecules) as a function of the concentration of other species in the system. ODE models provide a general framework to model such processes as continuous dynamic systems.
Generally, a gene regulatory network can be expressed by a set of first-order nonlinear ordinary differential equations with the expression level of each gene as a variable:
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References
Chen L, Wang RS, Zhang XS (2009) Biomolecular networks: methods and applications in systems biology. Wiley, Hoboken
de Jong H (2002) Modeling and simulation of genetic regulatory systems: a literature review. J Comput Biol 9(1):67–103
Glass L (1975) Classification of biological networks by their qualitative dynamics. J Theor Biol 54:85–107
Karlebach G, Shamir R (2008) Modelling and analysis of gene regulatory networks. Nat Rev Mol Cell Biol 9:770–780
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Wang, RS. (2013). Ordinary Differential Equation (ODE), Model. In: Dubitzky, W., Wolkenhauer, O., Cho, KH., Yokota, H. (eds) Encyclopedia of Systems Biology. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9863-7_381
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DOI: https://doi.org/10.1007/978-1-4419-9863-7_381
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