PMID: 11605239Oct 19, 2001Paper

Dose-effect and time-effect characteristics in process of tumorigenesis under combined action of ionizing radiation and chemical carcinogen

Radiatsionnaia biologiia, radioecologiia
A F MalenchenkoT S Kuz'mina

Abstract

Studying of dose and time dependences of frequency of adenomas appearing under the combined effect of radiation and urethane ingressed during different terms after irradiation has show that the frequency of tumours is determined both by radiation dose, and the time interval between irradiation and ingressing of cancerogenic substance. The data obtained show the period of preservation of the induced damages and non-linearity of the process of tumour-formation under the combined effect of radiation and toxic factors on the organism. The latter is necessary to be taken into account when forecasting the radiation risk under the real ecological conditions.

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