[Postradiation recovery of hematopoiesis in mice administered cell-free tissue extracts from the central Asiatic turtle].

It was shown on mice exposed to 8 Gy radiation that a spleen extract from T. horsfieldi has a high therapeutic effect. Bone marrow cellularity is restored as early as 8 days following irradiation and injection of the extract; the survival rate is 71.2% against 4.2 in the control.