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Articles

Dose and frequency in cancer therapy. Theoretical non-autonomous model of p53 network

, , , , , & show all
Pages 483-489 | Received 30 Mar 2018, Published online: 23 Apr 2018
 

Abstract

A non-autonomous model for the regulation of apoptosis by p53 is proposed as a model for cancer chronotherapy. A perturbation is introduced that simulates damage caused to DNA in a periodic regime. To characterize the resulting system dynamics, the techniques used were stroboscopic analysis, Poincare section and power spectrum. The complexity of the time series was determined using the LZ index. Periodic and quasi-periodic dynamics were obtained as the control parameters were varied. The less complex states are those corresponding to higher values of the amplitude which indicates a strict control of the dose is required on periodic treatments.

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