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Resonance effects determine the frequency of bursting Ca2+ oscillations

✍ Scribed by Matjaž Perc; Marko Marhl

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
196 KB
Volume
376
Category
Article
ISSN
0009-2614

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✦ Synopsis

A mathematical model for bursting Ca 2þ oscillations is analysed from a physical point of view as a system of internally coupled fast and slow oscillators. We show that the fast subsystem determines the interburst frequency, whereas altering the kinetics of the slow processes changes the duration of the bursting phase in a resonant manner. The resonance effect appears between two oscillatory Ca 2þ -buffering mechanisms. This may be biologically important for a highly selective Ca 2þ signal transduction from cell receptors to target proteins.

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