Genistein Stimulates Hematopoiesis and Increases Survival in Irradiated Mice

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概要

• 論文の詳細を見る

• Radiation protection from death and stimulating hematopoietic recovery by oral administrations of genistein, 160 mg/kg b.w., once daily for seven consecutive days before whole-body γ-rays irradiation, were confirmed by tests with adult male BALB/c mice. Moreover, the protective action of genistein was compared to that of diethylstilbestrol (DES). Based on the studies of survival, behavior of hematograms, endogenous hematopoietic spleen colony formation (endoCFUs), and numbers of nucleated cell, granulocyte-macrophage colony forming units (CFU-GM) in bone marrow following irradiation, it was demonstrated that genistein was an effective radioprotector. The survival of irradiated mice protected by genistein was significantly increased and statistically higher than that of mice pre-treated with DES. Stimulated recovery of leukocytes, erythrocytes, lymphocytes and thrombocytes were observed in mice pretreated with genistein or DES, however, the effects of genistein on promoting recovery of bone marrow nucleated cells, leukocytes and lymphocytes were significantly higher than those of DES. Enhanced endoCFUs, numbers of bone marrow nucleated cells and CFU-GM were also found in mice pre-treated with genistein as well as DES. Meanwhile, endoCFU numbers in mice pre-treated with genistein was 3.47-fold higher than that in the irradiated control group, although no significant difference was found between genistein administration and DES administration. It could be deduced that the radioprotective action against death is induced by a possible process of enhanced regeneration of the hematopoietic stem cells due to not only strengthened radioresistance and increased numbers of remained hematopoietic cells, but also enhanced post-irradiation repair or promoted proliferation of the hematopoietic stem cells. These effects of genistein may have some therapeutic implications for radiation-induced injuries.

• 日本放射線影響学会の論文
• 2005-12-28

著者

• Zhou Yong

  Department Of Nutrition And Food Hygiene School Of Preventive Medicine The Third Military Medical Un

• Zhou Yong

  Department Of Mathematics Xiangtan University

• MI Man

  Department of Nutrition and Food Hygiene, School of Preventive Medicine, The Third Military Medical

• Mi Man

  Department Of Nutrition And Food Hygiene School Of Preventive Medicine The Third Military Medical Un

• Zhou Yong

  Department Of General Surgery Shengjing Hospital Of China Medical University

• MI Man-Tian

  Department of Nutrition and Food Hygiene, School of Preventive Medicine, The Third Military Medical University

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