title: [Comparison of risk of mammary tumors developing in rats exposed to high-energy accelerated particles and gamma-ray radiation].
abstract: The frequency of tumorigenesis was investigated in the mammary glands of noninbred female rats and Wistar rats, after total-body exposure to a single dose of 60CO gamma radiation, 645 MeV and 9 GeV protons and 4 GeV/nuclon ions of helium. It was found that the relative biological effects of accelerated charged particles was significantly higher. This finding was obtained from calculations of the frequency of mammary tumors.
authors.affiliation: State Research Center of the Russian Federation-Research Institute of Medico-Biological Problems, Russian Academy of Medical Sciences, Moscow.
authors.forename: B S
authors.initials: BS
authors.lastname: Fedorenko
authors.forename: V S
authors.initials: VS
authors.lastname: Turusov
mesh_terms: D000818:Animals; D000835:Animals, Wild; D003037:Cobalt Radioisotopes / Q000009:adverse effects; D005260:Female; D005720:Gamma Rays / Q000009:adverse effects*; D006371:Helium; D008325:Mammary Neoplasms, Experimental / Q000209:etiology*; D010315:Particle Accelerators; D011522:Protons; D051381:Rats; D017208:Rats, Wistar; D018570:Risk Assessment
chemical_list: D003037:Cobalt Radioisotopes; D011522:Protons; D006371:Helium