[Biological effects of low level ionizing radiation (the threshold of effects and radiosensitivity/radioreactivity of biological structures with different level of organization)].
There have been analysed the data as own as taken from the literature concerning the action of low level radiation (LLR) on different structure level in a mammalian organism. There have been compared the types of various structures early reactions regarding an acute or prolonged exposure depending on the test type and the studied structure organization level. The data analysis has shown it should differentiate the damaging and irritating action of LLR. The former reveals the radiosensitivity and the latter does the radioreactivity of the structure studied. The damaging radiation action has an threshold and the latter increases in the way from molecular to whole body level. It is supposed the irritating LLR action is realized through the involvement of organism and cell regulative systems. The existence of a threshold in the case is unknown so far.
Rozhdestvenskiĭ
L M
LM
State Research Centre of Russia, Institute of Biophysics, Moscow. rozhd@glas.apc.org
D000818:Animals; D006801:Humans; D008954:Models, Biological; D011829:Radiation Dosage; D011830:Radiation Effects; D011836:Radiation Tolerance