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  • Journal
    Digital Access
    Provider
    Version
    PubMed Central
    v. 1-6, 2013-18.
    CINAHL
    v. 3-6, 2015-18.
  • Article
    Lloyd EL, Gemmell MA, Henning CB, Gemmell DS, Zabransky BJ.
    Int J Radiat Biol Relat Stud Phys Chem Med. 1979 Nov;36(5):467-78.
    Mammalian cells in culture have been shown here for the first time to be transformed by alpha irradiation. Mouse embryo (C3H 10T1/2) cells were transformed with 5.6 MeV alpha particles from a Tandem Van de Graaff machine. Malignant tumours were induced following inoculation of the transformed cells into syngeneic hosts. Unirradiated control cells failed to produce tumours. The morphology of the transformed foci was similar to that obtained by X-rays and chemicals but different from virally transformed cells. The transformation frequency increased approximately as the cube of the dose to a maximum of about 4 per cent ofthe surviving cells which occurred between 1.5 and 2.5 x 10(7) alpha particles per cm2 (205-342 rad). It appears that alpha particle irradiation may exert a direct effect on the genome of the cell to produce malignancy without any external immunological or hormonal influences.
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