作者用家畜白细胞提取抗抑素,观察它对受600拉德γ线照射的大白鼠骨髓细胞的刺激作用。实验方法用0.5×10~6/毫升的骨髓细胞悬液加入得自40×10~6白细胞的抗抑素,保温1小时,在荧光显微镜下观察骨髓细胞的荧光发光强度;另一观察指标是用2.0×10~6/毫升骨髓细胞,在培养过程中加入~3H-胸腺嘧啶核苷,放射自显影后,计数标记率。 The authors used animal leukocytes to extract antibiotics and observed its stimulatory effect on rat bone marrow cells exposed to 600 rad γ-rays. Experimental Methods 0.5×10 6 /ml bone marrow cell suspension was added to antibiotics from 40×10~6 white blood cells and incubated for 1 hour. The fluorescence intensity of bone marrow cells was observed under a fluorescence microscope; another observation was Using 2.0×10 6 /ml bone marrow cells, ~3H-thymidine was added during the culture. After autoradiography, the labeling rate was counted.