[Therapeutic effect of purified components of a turtle spleen extract].

The administration of a spleen extract of Testudo horsfieldi to mice exposed to lethal radiation of 8 Gy was shown to increase the survival rate and to stimulate haemopoiesis and formation of endocolonies in the spleen. The gel filtration method was used to obtain an active fraction which was subjected to chromatography on cation exchanger to give two more fractions. Active was the fraction with basic components.

[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.