A Stochastic Markov Model of Cellular Response to Radiation

Fornalski, Krzysztof Wojciech; Dobrzyński, Ludwik; Janiak, Marek Krzysztof
October 2011
Dose-Response;2011, Vol. 9 Issue 4, p477
Academic Journal
A stochastic model based on the Markov Chain Monte Carlo process is used to describe responses to ionizing radiation in a group of cells. The results show that where multiple relationships linearly depending on the dose are introduced, the overall reaction shows a threshold, and, generally, a non-linear response. Such phenomena have been observed and reported in a number of papers. The present model permits the inclusion of adaptive responses and bystander effects that can lead to hormetic effects. In addition, the model allows for incorporating various time-dependent phenomena. Essentially, all known biological effects can be reproduced using the proposed model.


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