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  • Title: Thermal enhancement of the effectiveness of gamma radiation for induction of reproductive death in cultured mammalian cells.
    Author: Joshi DS, Barendsen GW, van der Schueren E.
    Journal: Int J Radiat Biol Relat Stud Phys Chem Med; 1978 Sep; 34(3):233-43. PubMed ID: 309451.
    Abstract:
    The induction by gamma radiation of reproductive death in cultured cells derived from a rat ureter carcinoma (RUC-2) and from Chinese-hamster lung tissue (CH-V79) was shown to be enhanced by hyperthermic treatments at 41, 43 and 45 degrees C. The degree of enhancement was found to depend on the line of cells studied, the temperature employed and the level of damage considered. The influence of accumulating sublethal damage was decreased by hyperthermia, and the final slope of the radiation survival curve was increased. The degree of enhancement of lethal damage was found to depend on the time interval between the heat treatment and irradiation, especially at 41 degrees C.
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