正常或经不同剂量γ线照射的小鼠,由腹腔注射人胎盘脂多糖或无蛋白血清后不同时间,取股骨检测骨髓CFU-S和CFU-GM含量,同时对脾脏和股骨作形态检查。结果表明,两种胎盘制剂对造血均有促进作用,且有不同程度的辐射防治效果,能加速辐射损伤后的造血重建,表现在脾指数、骨髓有核细胞数以及造血干、祖细胞恢复较早。脾脏与骨髓的形态变化亦相符合。 After normal or different doses of γ-irradiated mice were injected intraperitoneally with human placental lipopolysaccharide or without protein serum, the content of CFU-S and CFU-GM in bone marrow was measured with the femur, and the morphology of the spleen and femur was examined. The results showed that both placenta preparations promoted hematopoiesis, and had different degrees of radiation control effects, and could accelerate hematopoietic reconstitution after radiation injury, manifested in the spleen index, the number of bone marrow nucleated cells, and the recovery of hematopoietic stem and progenitor cells. early. The morphological changes of the spleen and bone marrow are also consistent.