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  • Title: Radioprotection of whole-body gamma-irradiation-induced alteration in some haematological parameters by cysteine, vitamin E and their combination in rats.
    Author: Shaheen AA, Hassan SM.
    Journal: Strahlenther Onkol; 1991 Aug; 167(8):498-501. PubMed ID: 1887368.
    Abstract:
    Radioprotective effect of cysteine, vitamin E and their combination on gamma-irradiation-induced alteration in some haematological parameters in male rats has been studied 24 and 48 hrs after whole-body gamma-irradiation at a dose level of 7.5 Gy. The results of this study reveal that gamma-irradiation caused a significant decrease in red blood cells (RBCs) count with insignificant change in hemoglobin level, 24 and 48 hrs postirradiation, gamma-irradiated rats showed as well a progressive decrease in their blood ATP, and serum-SH levels with a significant increase in blood glutathione (GSH) level. Administration of cysteine or vitamin E preceding gamma-radiation exposure gave a significant radioprotection to the above haematological parameters. However, combination of both agents afforded a better protection, so that most of the measured parameters were restored to the pre-irradiated values. Finally, the date demonstrate that the radioprotection provided by combined administration of vitamin E and cysteine is feasible and perhaps, even more efficient against radiation injury to RBCs. This will appreciate the usage of such combination in protecting the patient during radiotherapy.
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