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Repair of potentially lethal damage in Chinese hamster cells afer x and. cap alpha. irradiation. [/sup 238/Pu]

Journal Article · · Radiat. Res.; (United States)
DOI:https://doi.org/10.2307/3574628· OSTI ID:5112183
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Recovery from potentially lethal damage (PLD) of cultured Chinese hamster cells (line CHO) after exposure to x rays and to ..cap alpha.. particles was investigated using both exponentially growing and plateau-phase cells (nutritionally induced stationary phase). The results indicated that there was no recovery from PLD after exposure to ..cap alpha.. particles from plutonium. Experiments were also conducted to determine if recovery phenomena were dependent on cell concentration. Recovery from PLD after x-ray exposure was not dependent on cell concentration. Cell-to-cell contact also does not seem to be an important factor in PLD recovery. The recovery curve shape after exposure to x rays, both for exponentially growing and plateau-phase CHO cells, remained identical; however, the magnitude of repair by plateau-phase cells was higher than by exponentially growing cells, indicating that cells in G/sub 1/ may be primarily involved in PLD recovery.
Research Organization:
Los Alamos Scientific Lab., NM
OSTI ID:
5112183
Journal Information:
Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 71:3; ISSN RAREA
Country of Publication:
United States
Language:
English

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Related Subjects

560121* -- Radiation Effects on Cells-- External Source-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ALPHA PARTICLES
ANIMAL CELLS
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
EVEN-EVEN NUCLEI
HAMSTERS
HEAVY NUCLEI
INJURIES
IONIZING RADIATIONS
ISOTOPES
LET
MAMMALS
NUCLEI
PLUTONIUM 238
PLUTONIUM ISOTOPES
RADIATION EFFECTS
RADIATION INJURIES
RADIATIONS
RADIOISOTOPES
RECOVERY
REPAIR
RODENTS
VERTEBRATES
X RADIATION
YEARS LIVING RADIOISOTOPES