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Uptake and loss of plutonium from osteoclasts and macrophages in the mandibular condyle of the rat

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Summary

Female rats were used to study the kinetics of plutonium transfer from the bone surfaces of the mandibular condyle to osteoclasts and macrophages. This study was made using autoradiographs prepared from plastic sections of the mineralized bones of animals which had been injected with241 Pu citrate. Measurements of the concentration of plutonium in the osteoclasts and macrophages at different times after the injection of plutonium showed that plutonium was concentrated by osteoclasts from bone surfaces and was retained with a half-time of ∼ 70 h. Subsequently, plutonium appeared to be transferred to macrophages. The results showed that plutonium was unlikely to be accumulated by macrophages as a result of their participation in bone resorption.

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Authors and Affiliations

  1. National Radiological Protection Board, OX11 ORQ, Harwell, Didcot, Oxon, U.K.

    N. D. Priest & S. J. Giannola

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  1. N. D. Priest
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  2. S. J. Giannola
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Priest, N.D., Giannola, S.J. Uptake and loss of plutonium from osteoclasts and macrophages in the mandibular condyle of the rat. Calcif Tissue Int 30, 15–20 (1980). https://doi.org/10.1007/BF02408601

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  • DOI: https://doi.org/10.1007/BF02408601

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