Figure 3: Effect of irradiation and TS treatment on bone marrow colony forming potential. Mice were treated with 400 mg/kg of TS or vehicle and irradiated 24 h after injection. Bone marrow cells were collected 3 and 7 d post-irradiation and the colonies of CFU-GEMM, CFU-GM, and BFU-E cells were counted. Representative photographs of colonies are shown (X400 magnification). *Denotes statistically significant difference between treatment groups p<0.05.