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drgrandilab/Heijman-et-al-2023-Human-Atrial-Model
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Matlab code for Heijman et al. (Circ Res. 2023) human atrial model. This model is based on the framework of the Grandi et al. human atrial model (Circ Res. 2011; 109:1055-66, available for download on this website), previously modified to reproduce Na-dependent regulation of IK1 and IK,ACh, and here extended to integrate a previously published model of IK2P and a novel formulation of ISK. _____________________________________________________________________________________________________ Contents: human_atrial_main.m loads initial conditions and runs the simulation human_atrial_model.m excitation-contraction coupling model human_atrial_calcCurrents.m supporting function for simulation output analysis .mat files contain steady-state initial conditions in nSR or cAF with normal or blocked SK current obtained at different pacing frequencies Executing the following codes allows reproducing the published figures: Fig_2_Linear_regression.m Fig_S6_Freq_analysis.m Fig_S8_Caffeine_protocol.m Fig_S9_ICaL_block_protocol.m Fig_S10_Freq_analysis_SK_block.m _____________________________________________________________________________________________________ References: Heijman J, Zhou X, Morotti S, Molina CE, Abu-Taha IH, Tekook M, Jespersen T, Zhang Y, Dobrev S, Milting H, Gummert J, Karck M, Kamler M, El-Armouche A, Saljic A, Grandi E, Nattel S, Dobrev D. Enhanced Ca2+-Dependent SK-Channel Gating and Membrane Trafficking in Human Atrial Fibrillation. Circ Res. 2023. https://doi.org/10.1161/CIRCRESAHA.122.321858 Grandi E, Pandit SV, Voigt N, Workman AJ, Dobrev D, Jalife J, Bers DM. Human Atrial Action Potential and Ca2+ Model: Sinus Rhythm and Chronic Atrial Fibrillation. Circ Res. 2011 Oct 14;109(9):1055-66. doi: https://doi.org/10.1161/CIRCRESAHA.111.253955 Please cite the above papers when using this model.
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This model is based on the framework of the Grandi et al. human atrial model, here extended to integrate a previously published model of IK2P and a novel formulation of ISK.
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