The Effect of Homologous Marrow Transplantation on the Survival of Monkeys Following Sublethal Who1e-Body Radiation

Homologous bone marrow given to the rhesus monkey 30 hours after LD 10 radiation dose of 550r increased the mortality rate expected from the radiation alone. The symptoms produced resembled those obtained at higher doses of radiation. The effects of marrow given 48 hours after radiation differed little from those produced by the radiation alone. It is suggested that the 30-hour injection elicited a more violent reaction or that the reaction occurred during a more decisive time in the process of recovery.