Space environmental factors affecting responses to radiation at the cellular level

Space environmental factors affecting responses to radiation at the cellular level

Previous space experiments suggest a high value for the RBE of cosmic radiation. A possible explanation could be a change in cell radiosensitivity due to a combined effect of radiation and other factors related to the space environment and to the space flight. Results of the EXOBLOC II experiment su...

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Bibliographic Details
Published in:Advances in space research Vol. 9; no. 10; p. 157
Main Authors: Planel, H, Gaubin, Y, Pianezzi, B, Gasset, G
Format: Journal Article
Language:English
Published: England 1989
Subjects:
Animals
Artemia
Bacillus subtilis
Cosmic Radiation
Insecta
Larva
Radiation Tolerance
Radiobiology
Relative Biological Effectiveness
Space Flight
Spores, Bacterial
Vibration
Weightlessness
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Summary:Previous space experiments suggest a high value for the RBE of cosmic radiation. A possible explanation could be a change in cell radiosensitivity due to a combined effect of radiation and other factors related to the space environment and to the space flight. Results of the EXOBLOC II experiment support this assumption. On earth, vibrations or accelerations applied before or after irradiation can change the responses to radiation. Microgravity could be the main factor affecting the radiosensitivity and DNA repair but this hypothesis must be confirmed by additional experiments.
ISSN:0273-1177
DOI:10.1016/0273-1177(89)90434-1