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  • Title: Study of the biochemical indicators of chronic irradiation in rats.
    Author: Szabo LD, Benko AB, Gyenge L, Predmerszky T.
    Journal: Life Sci Space Res; 1976; 14():189-93. PubMed ID: 12678104.
    Abstract:
    Daily urinary excretion of pseudouridine, creatinine and creatine of chronically irradiated Wistar rats was estimated. The irradiation conditions were: 60Co gamma source, dose-rate 10 rad/day, total dose 200, 400 and 600 rad. Control groups were kept under similar conditions. Urine samples were taken three times after the end of the irradiation period. It was found that: (1) pseudouridine excretion seems more suitable for indicating radiation injury than the creatine/creatinine ratio in chronic irradiation in rats; (ii) there are significant changes in dose dependence of pseudouridine excretion in the post-irradiation period; (iii) a new method for pseudouridine estimation gives closely similar data to those of earlier investigations.
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