在正常状态下,造血干细胞保持动态平衡,当机体受到某种刺激时,干细胞库的细胞群——多能干细胞、定向干细胞(CFU-s、CFU-c)加快增殖和加速向外周血释放。目前已知起这种动员作用的物质尚不多。本文采用我们以往治疗放射病有效药;伤寒杆菌内毒素、苯甲酸雌二醇,对CFU-s的动员作用进行了初步观察。 试验用小鼠腹腔注射伤寒杆菌内毒素40 Under normal conditions, hematopoietic stem cells maintain homeostasis. When the body is under some stimulus, the stem cell bank’s population of pluripotent stem cells and stem cells (CFU-c, CFU-c) accelerate proliferation and release to peripheral blood. At present, there are not many substances that have been known to mobilize this kind of effect. In this paper, we used to the effective treatment of radiation sickness drugs; Salmonella typhi endotoxin, estradiol benzoate, CFU-s mobilization was initially observed. Experimental mice were injected intraperitoneally with Salmonella typhi endotoxin 40