Fire-diffuse-fire model of dynamics of intracellular calcium waves

被引:139
作者
Dawson, SP
Keizer, J
Pearson, JE [1 ]
机构
[1] Univ Calif Davis, Inst Theoret Dynam & Neurobiol Physiol & Behav, Davis, CA 95616 USA
[2] Univ Calif Los Alamos Natl Lab, Div Appl Theoret Phys, Los Alamos, NM 87545 USA
[3] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina
关键词
D O I
10.1073/pnas.96.11.6060
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
When Ca2+ is released from internal stores in living cells, the resulting wave of increased concentration can travel without deformation (continuous propagation) or with burst-like behavior (saltatory propagation). We analyze the "fire-diffuse-fire'' model in order to illuminate the differences between these two modes of propagation. We show that the Ca2+ release wave in immature Xenopus oocytes and cardiac myocytes is saltatory, whereas the fertilization wave in the mature oocyte is continuous.
引用
收藏
页码:6060 / 6063
页数:4
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