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Figure 5: Effect of GT3-PTX on bone marrow cellularity. Bone marrow nucleated cells harvested from femurs ( ) at days 1, 4, and 7 after 8Gy TBI from one of the following groups: vehicle, 100mg/kg PTX, 200mg/kg GT3, 200mg/kg GT3 plus 100mg/kg PTX. Corresponding unirradiated controls were also included in the experiment. GT3-PTX combination shows significantly higher bone marrow cellularity ( ) compared to GT3 alone group at day 7 post-TBI.