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Role of age in development of tumors in irradiated animals. [. gamma. rays; rats]

Journal Article · · Radiobiology (USSR) (Engl. Transl.); (United States)
OSTI ID:5577644
; ; ;

A study was made of the effect of age on occurrence of tumors in rats exposed to radiation at different stages of postnatal life. It was demonstrated that exposure to /sup 60/Co ..gamma.. rays in a dosage of 200 R of puberal rats (120 days old) elicited a maximum yield of mammary and pituitary tumors sooner than in rats exposed to radiation in the neonate period. Exposure of rats to radiation on the 7th, 14th, and 30th days after birth induced ovarian tumors. Irradiation in the neonate period reduced the latency period of mammary and pituitary tumors.

OSTI ID:
5577644
Journal Information:
Radiobiology (USSR) (Engl. Transl.); (United States), Journal Name: Radiobiology (USSR) (Engl. Transl.); (United States) Vol. 18:2; ISSN RADBA
Country of Publication:
United States
Language:
English

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Related Subjects

560152* -- Radiation Effects on Animals-- Animals
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGE DEPENDENCE
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
CARCINOGENESIS
COBALT 60
COBALT ISOTOPES
DATA
DATA FORMS
DISEASES
ELECTROMAGNETIC RADIATION
ENDOCRINE GLANDS
EXPERIMENTAL DATA
EXTERNAL IRRADIATION
FEMALE GENITALS
GAMMA RADIATION
GLANDS
GONADS
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
IRRADIATION
ISOLATED VALUES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
JUVENILES
LATENCY PERIOD
MAMMALS
MAMMARY GLANDS
MINUTES LIVING RADIOISOTOPES
NEONATES
NEOPLASMS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANS
OVARIES
PATHOGENESIS
PITUITARY GLAND
RADIATION EFFECTS
RADIATIONS
RADIOINDUCTION
RADIOISOTOPES
RATS
RODENTS
VERTEBRATES
WHOLE-BODY IRRADIATION
YEARS LIVING RADIOISOTOPES