| INTRACELLULAR SOLITARY PULSE CALCIUM WAVES IN FROG SYMPATHETIC NEURONS |
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| 作者姓名： | 施小民 戴世强 |
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| 作者单位： | School of Life Science，Shanghai University，Shanghai 200444，P.R.China，Shanghai Institute of Applied Mathematics and Mechanics，Shanghai University，Shanghai 200072，P.R.China |
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| 摘 要： | IntroductionCalciumionlevelsinintracellularsympatheticneuronsplayacontrollingroleinthetransmissionprocessesofvarioussignals,includingneuron_transmittersecretion ,regulationofmembraneexcitability ,inductionofgeneexpression ,etc .1]However,howisthecytoplasmiccalciumconcentrationinneuronsregulated ?WehavealreadyknownthattheraiseincalciumconcentrationinXenopuslaevisoocyteismainlyoriginatedfromtheinfluxofCa2 outofcalciumstoresintheendoplasmicreticulum ,whichisinitiatedwiththestimulationofextrace…
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| 关 键 词： | 钙振动 固态脉冲波 交感神经元 变换过程 RyR |
| 收稿时间： | 15 December 2003 |
Intracellular solitary pulse calcium waves in frog sympathetic neurons |
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| Xiao-min Shi,Shi-qiang Dai.INTRACELLULAR SOLITARY PULSE CALCIUM WAVES IN FROG SYMPATHETIC NEURONS[J].Applied Mathematics and Mechanics(English Edition),2005,26(2):150-159. |
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| Authors: | Xiao-min Shi Shi-qiang Dai |
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| Institution: | 1. School of Life Science, Shanghai University, Shanghai 200444, P.R. China
2. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P.R. China |
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| Abstract: | In certain extracellular environments, there would appear a kind of solitary pulse calcium waves in Rana pipiens sympathetic
neurons, propagating inwards along the radial direction from the plasma membrane. To gain a deeper insight into the waves,
a model describing intracellular calcium waves in frog sympathetic neurons was established. In the piecewise linear approximation,
the present model is identical to the Sneyd model. Thus, with Sneyd’s method, analytical expressions for the wave speed and
profiles of 1-D solitary pulse wave were obtained. A wave speed of 21.5 μm/s was deduced, which agrees rather well with experimental
data.
Contributed by DAI Shi-qiang
Biography: SHI Xiao-min, Doctor, E-mail: xminshi@sohu.com |
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| Keywords: | calcium oscillation solitary pulse calcium wave sympathetic neuron ryanodine receptor |
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