Osteosarcoma risk after simultaneous incorporation of the long-lived radionuclide sup 227 Ac and the short-lived radionuclide sup 227 Th
- GSF-Institut fuer Pathologie, Neuherberg (Germany, F.R.)
The effect of injection of 1.85 kBq/kg of the long-lived radionuclide {sup 227}Ac on the induction of osteosarcomas in female NMRI mice by different dose levels (18.5, 74, and 185 kBq/kg) of the short-lived radionuclide {sup 227}Th was investigated. The highest absolute osteosarcoma incidence was observed with the highest doses of {sup 227}Th. Addition of {sup 227}Ac resulted in an additional osteosarcoma incidence only at the lowest dose of {sup 227}Th and did not affect the osteosarcoma incidence resulting from higher doses of {sup 227}Th. The longest times to tumor appearance were observed with {sup 227}Ac alone. The latent period in two different age groups (4 weeks and 10-12 weeks) appeared to be similar following injection with combined doses of {sup 227}Th and {sup 227}Ac but different after injection of each radionuclide alone.
- OSTI ID:
- 6992109
- Journal Information:
- Radiation Research; (USA), Vol. 121:1; ISSN 0033-7587
- Country of Publication:
- United States
- Language:
- English
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ACTINIUM 227
CARCINOGENESIS
OSTEOSARCOMAS
RADIOINDUCTION
THORIUM 227
ALPHA PARTICLES
BETA PARTICLES
MICE
RISK ASSESSMENT
SYNERGISM
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIUM ISOTOPES
ALPHA DECAY RADIOISOTOPES
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED PARTICLES
DAYS LIVING RADIOISOTOPES
DISEASES
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOTOPES
MAMMALS
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
PATHOGENESIS
RADIOISOTOPES
RODENTS
SARCOMAS
SKELETAL DISEASES
THORIUM ISOTOPES
VERTEBRATES
YEARS LIVING RADIOISOTOPES
560162* - Radionuclide Effects
Kinetics
& Toxicology- Animals
Plants
Microorganisms
& Cells