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Response of femoral and vertebral colony-forming units to $sup 226$Ra internal contamination in mice

Journal Article · · Radiat. Res., v. 64, no. 3, pp. 467-474
OSTI ID:4087893
In mice given intraperitoneally 0.034 $mu$Ci of $sup 226$Ra/g body weight the peripheral blood counts, marrow cellularity in femora and lumbar vertebrae, and the colony counts and $sup 59$Fe uptake in spleens of heavily irradiated hosts after grafting either femoral or vertebral myeloid cells were determined. In mice treated with 0.030 $mu$Ci of $sup 226$Ra/g the activity per 10 mg of wet bone tissue was computed and the data obtained in femoral ends and diaphyses and in lumbar vertebrae were correlated to the hematological findings. The effect of internally retained $sup 226$Ra is manifested by serious changes in femoral and vertebral hemopoiesis and in peripheral blood counts. The vertebral marrow is more seriously damaged as observed in the colony counts and $sup 59$Fe uptake in recipient spleens. This unequal response of femoral and vertebral marrow is discussed in relation to the $sup 226$Ra activity retained and the area of endosteal surfaces. (auth)
Research Organization:
Inst. of Hygiene and Epidemiology, Prague
NSA Number:
NSA-33-015103
OSTI ID:
4087893
Journal Information:
Radiat. Res., v. 64, no. 3, pp. 467-474, Journal Name: Radiat. Res., v. 64, no. 3, pp. 467-474; ISSN RAREA
Country of Publication:
United States
Language:
English