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The overrated role of `promotion' in mechanistic modelling of radiation carcinogenesis

Marco J P Brugmans1, Harmen Bijwaard and Henk P Leenhouts

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It is argued that the `cellular' dose-response relationships of model parameters cannot be determined from mechanistic model fits to experimental or epidemiologic cancer data. Baseline population cancer incidence data show conclusions about intermediate cell kinetics to be especially questionable. Here we recommend that mechanistic models should be applied solely in one direction: by starting from known cellular dose-response relationships the models aim at providing a biologically motivated consistent description of the development of radiation-induced cancer for different exposures, which is very important for low-dose risk estimation.


PACS

87.19.X- Diseases

87.50.-a Effects of electromagnetic and acoustic fields on biological systems

Subjects

Medical physics

Biological physics

Dates

Issue 3A (September 2002)

Received 17 February 2002

Published 4 September 2002



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