منابع مشابه
Risk of Radiation Carcinogenesis
Occupational radiation exposure from the space environment may increase cancer morbidity or mortality risk in astronauts. This risk may be influenced by other space fl ight factors including microgravity and e nvironmental contaminants. A Mars mission will not be fe asible unless improved shielding is developed or transit time is decreased. – Human Research Program Requirements Document, HRP-47...
متن کاملThe biology of viral carcinogenesis.
Virus induction of tumors is the direct effect of a complex interaction of a single virus particle with the target cell. The factor which determines which virus has the potential for inducing tumors resides in the viral nucleic acid and of neces sity must be related to the chemical structure of the viral genome. It has been suggested that the important chemical structure is a sequence of bases ...
متن کاملOncogenes and radiation carcinogenesis.
Current research indicates a role for several oncogenes in radiation-induced carcinogenesis in vivo and cell transformation in vitro. Certain oncogenes are probably also involved in some cases of human cancer caused by exposure to nonionizing radiation and may play a mechanistic role in the phenomenon of radioresistance seen in later stages of tumor progression. The mechanisms of oncogene activ...
متن کاملIonizing Radiation Carcinogenesis
1.1 Ionizing radiation Human exposure to ionizing radiation is a natural part of life on earth. These exposures occur every day from radiation associated with naturally occurring radionuclides in soil, air, and food, and also from cosmic rays. In addition, many people are exposed to dental and medical diagnostic procedures and therapy involving: x rays, gamma rays, charged particles, radionucli...
متن کاملWhat will molecular biology contribute to our understanding of radiation-induced cell killing and carcinogenesis?
The vast body of radiobiological data accumulated with mammalian systems in vitro and in vivo has had an enormous impact on radiotherapy. However, while quantitative, these data are essentially phenomenological, and it is only in the last decade or so that the techniques of molecular biology allow basic mechanisms to be understood. This will be illustrated by two examples, one involving cell ki...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 1976
ISSN: 0007-0920,1532-1827
DOI: 10.1038/bjc.1976.216