Reutilization of thymidine in various groups of rat bone marrow cells.

Thymidine reutilization was studied in reutilized by the salvage pathway mdisingle cells of the rat bone marrow. cated that approximately 40-60 per cent Using 3H-TdR in parallel with 1251-UdR of the thymidine in the blast cells is in conunction with the autoradiographic supplied from DNA of dead cells. This technique, cells of the erythrocytic sevalue is similar to that reported preries, the megakaryocytic group, and the viously for whole bone marrow cell poplymphoid cells were analyzed. Reutilizaulations, suggesting the presence of a tion of thymidine was observed only in common thymidine pool within the bone those cells known to synthesize DNA. An marrow. estimate of the amounts of the thymidine