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利用体外半固体琼脂培养骨髓粒单系祖细胞的方法测定小鼠血清中粒系造血活性，经８Ｇｙγ射线照射后４天粒系刺激活性趋于降低；照后７～１０天，显示一定程度的升高，为正常血清的１４０％左右：第１４天呈下降趋势。经３，５，７，９Ｇｙ不同剂量照射后，血清中的粒系造血活性随照射剂量的增加而增高．９Ｇｙ照射组最高，照后第７天可为正常的２００％以上，用后１２天时小鼠中的粒系造血刺激活性仍高于正常血清。照后小鼠血清中亦同时存在粒系造血抑制活性，照后１天即可以观察到，照后１０天前比正常小鼠明显。作者对血清中粒系造血活性升高机理及存在抑制活性对放射病时造血损伤修复的影响进行了探讨。
The myeloid hematopoietic activity in murine sera was measured by in vitro semi-solid agar culture of myelomonocytic myeloid progenitor cells, and the myeloid-derived stimulating activity tended to decrease 4 days after irradiated with 8Gy γ-rays. From 7 to 10 days after irradiation, a certain degree of Increased to about 140% of normal serum: the first 14 days showed a downward trend. After being irradiated with different dose of 3,5,7,9Gy, the hematopoietic activity of granulocyte in serum increased with the increase of irradiation dose. 9Gy irradiation group highest, after the first 7 days can be more than 200% of the normal, 12 days after use of mice in the hematopoietic system of granulocyte-stimulating activity is still higher than normal serum. According to the mouse serum, the myeloid hematopoietic inhibitory activity also existed at the same time, which was observed one day after the irradiation. The authors investigated the mechanism of elevated hematopoietic activity in serum and the effect of inhibiting activity on hematopoietic repair during radiotherapy.