Optimal estimation of ion-channel kinetics from macroscopic currents.
Optimal estimation of ion-channel kinetics from macroscopic currents.
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从宏观电流对离子通道动力学的优化估计
DOI:
10.1371/journal.pone.0035208
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Ding J
中科院分区:
文献类型:
--
作者:
Wang W;Xiao F;Zeng X;Yao J;Yuchi M;Ding J
Markov modeling provides an effective approach for modeling ion channel kinetics. There are several search algorithms for global fitting of macroscopic or single-channel currents across different experimental conditions. Here we present a particle swarm optimization(PSO)-based approach which, when used in combination with golden section search (GSS), can fit macroscopic voltage responses with a high degree of accuracy (errors within 1%) and reasonable amount of calculation time (less than 10 hours for 20 free parameters) on a desktop computer. We also describe a method for initial value estimation of the model parameters, which appears to favor identification of global optimum and can further reduce the computational cost. The PSO-GSS algorithm is applicable for kinetic models of arbitrary topology and size and compatible with common stimulation protocols, which provides a convenient approach for establishing kinetic models at the macroscopic level.
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影响因子:
3.4
作者:
Colquhoun, D;Dowsland, KA;Plested, AJR
通讯作者:
Plested, AJR
影响因子:
1
作者:
KIEFER, J
通讯作者:
KIEFER, J
DOI:
10.1109/tsmcc.2002.801352
发表时间:
2002-05-01
期刊:
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART C-APPLICATIONS AND REVIEWS
影响因子:
--
作者:
Kewley, RH;Embrechts, MJ
通讯作者:
Embrechts, MJ
影响因子:
8.7
作者:
Zhao Xinchao
通讯作者:
Zhao Xinchao
DOI:
10.1049/ip-gtd:19990047
发表时间:
1999-05-01
期刊:
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION
影响因子:
--
作者:
Zhou, XX;Liang, J
通讯作者:
Liang, J