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首页> 美国政府科技报告 >The Effect of Exogenous Erythropoietin Upon Erythropoiesis in Radiation-Induced Anemic Rats
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The Effect of Exogenous Erythropoietin Upon Erythropoiesis in Radiation-Induced Anemic Rats

机译：外源性促红细胞生成素对放射性贫血大鼠红细胞生成的影响

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Experiments were performed to test the hypothesis that rats could be made permanently anemic by repeated mixed gamma-neutron irradiations, and that once the maintenance of normal circulatory red cell concentration was lost, the administration of exogenous erythropoietin could not restore the production of red cells to normal levels. Rats were exposed to 9 periodic doses of 150 rads mixed gamma-neutron radiation or to 4 periodic doses of 300 rads. Hematocrits and erythrocyte counts obtained for 100 days or more after the final radiation exposure showed a significant reduction in erythrocyte production. This permanent anemia was not ameliorated by the treatment with 5 daily doses of either 5 units or 25 units of erythropoietin. These findings appear to strengthen the hypothesis that the permanent anemia is caused by a reduced capability for cellular proliferation due to accumulation of residual injury in stem cells. (Author)

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