Model for Influences of Magnetic Fields on Intracellular Calcium Oscillations
| Autor: | Zhao Tong-Jun, Zhang Yu-Hong, Yuan Chang-Qing, Zhan Yong, Chen Ya-Fei |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Electromagnetic field
Physics and Astronomy (miscellaneous) Oscillation chemistry.chemical_element Calcium equipment and supplies Calcium in biology Quantitative Biology::Cell Behavior Ion Magnetic field Quantitative Biology::Subcellular Processes Cell membrane medicine.anatomical_structure Nuclear magnetic resonance chemistry Permeability (electromagnetism) medicine Biophysics human activities |
| Zdroj: | Communications in Theoretical Physics. 52:168-172 |
| ISSN: | 0253-6102 |
| DOI: | 10.1088/0253-6102/52/1/36 |
| Popis: | Based on the model of the two calcium stores developed by Goldbeter, the influence of external magnetic field on the calcium concentration has been discussed. We believe that the cell membrane is a major site of interaction for extremely-low-frequency (ELF) electromagnetic fields, and the permeability of ions can be changed with the changing electromagnetic fields. It is shown that magnetic field initiates intracellular calcium oscillation with a threshold in flux density, and that the calcium oscillations do not occur if the density of magnetic field is below the threshold. The results of theoretical calculation are consistent with that of the experiment. The intracellular free calcium concentrations of different cells exposed to the same magnetic fields are different from each other. It is indicated that the different behaviors such as oscillation, rise and invariability of calcium concentration are associated with the sort of cells. |
| Databáze: | OpenAIRE |
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