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  • Title: X-ray and UV-radiation sensitivity of circulating lymphocytes in multiple epidermal cancer in relation to previous radiation exposure.
    Author: Munch-Petersen B, Frentz G.
    Journal: Radiat Res; 1985 Sep; 103(3):432-40. PubMed ID: 4034936.
    Abstract:
    The cellular sensitivity to X rays (200 kV, 16 mA) and UV radiation (254 nm) was examined in lymphocytes from three groups of patients with multiple epidermal malignant tumors, selected by their clinical history of carcinogenesis. Eight patients previously exposed to low energy ionizing radiation (less than or equal to 12 kV) had an increased cellular sensitivity to UV radiation as well as X rays compared with 24 age and sex matched controls. This indicates the existence of a cellular cross-sensitivity to UV radiation and ionizing radiation not previously established for human cells. In contrast six patients previously exposed to high energy ionizing radiation (between 25 and 170 kV) had normal cellular response to both UV radiation and X rays, indicating a different biologic effect of low and high energy ionizing radiation. In the third group of patients, previously exposed to therapeutic UV radiation/excess sunlight, the lymphocytes had a normal response to X rays, but an increased sensitivity to UV radiation. The possibility of evaluating the individual risk at radiation exposure is suggested.
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