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Reimmigration of bone marrow stem cells in mice in roentgen experiments

Journal Article · · Dokl. Biol. Sci. (Engl. Transl.); (United States)
OSTI ID:7361402
One or four extremities of mice were exposed to x radiation in a dose of 2000 R, inactivating the bone marrow. Immediately, one, or three hrs. afterwards the bodies of the mice were exposed to 720R radiation while the previously irradiated portions were shielded with lead. Observations were made on survival, spleen colony formation nine days after irradiation and weight changes of the spleen after one month. The survival rate of the animals indicated that the irradiated bone marrow of the extremities was colonized by migration of unexposed cells to irradiated bone marrow. Data on spleen colony formation and recovery of its weight served as evidence for repopulation of hemopoietic tissue in cases where one or four previously irradiated extremities were shielded with an interval of three hrs. between exposures. (HLW)
Research Organization:
Central Roentgen-Radiological Research Inst., Leningrad
OSTI ID:
7361402
Journal Information:
Dokl. Biol. Sci. (Engl. Transl.); (United States), Journal Name: Dokl. Biol. Sci. (Engl. Transl.); (United States) Vol. 223:1/6; ISSN DKBSA
Country of Publication:
United States
Language:
English