A model for biological oscillations.

AUTOR(ES)

Chay, T R

RESUMO

A model and computation for oscillatory phenomena observed in some biological processes that utilize ion gradients across a membrane is presented. The model contains two main features: (i) active H+ transport pathways in the membrane and (ii) key enzymes having a pH-dependent activity profile and either translocating H+ from outside or producing H+ as a product. With this model a very long period of oscillations, as observed in mitochondrial and circadian rhythms, could be quantitatively demonstrated.

Documentos Relacionados

• A bifurcation analysis of neuronal subthreshold oscillations.
• Intracortical and corticothalamic coherency of fast spontaneous oscillations.
• Role of substrate inhibition kinetics in enzymatic chemical oscillations.
• Frequency encoding in excitable systems with applications to calcium oscillations.
• A multiscale model for tropical intraseasonal oscillations