APPENDIX D Experimental Data on Radioactive Strontium Toxicity Refer- | ence 37... | . Anituat | ‘ | Human. oo... NO. OF . animals Goo, Tsotope pre, wefem admin- istered Estimated rad/dayin Bislogical effects Comments skeleton .02-0.4 3-60 All died soon after treatment, presutuably from disease for which treated (breast cancer, polycythemia vera, osteogenic and other sarcomas), Iffects of radiation | indistinguishablte from disease. | | Hluman..... | Joos, Sree, Human..... Poo... Sree... 38... Dogs....... 24.0.0... Srplus small 39, 40. Dogs (adult).| 9.0.2.2... Srplus small Sr ¢ontamination. 10 0.06 16 0.1-3.1 16-500 0.25-1.0 40-160 Sr® contamination. Mycosis fungicides diagnosed. Effects Indistinguishable from symptoms of disease. Survives without follow-up. Fibromyxosarcoma diagnosed. [ffects indistinguishable from symptoms of disease. Survives apparently without ill effects. 30 day LD50 about I,c/gm_ retained. Biological response was acute radiation syndrome. 4 died within 135 days, all suffered early hemorrhages, survivors had numerous bone fractures. 1 with maximuin dose died at 8 yrs. with skeletal changes, no tumor. 1 with 0.5,c/gm has bone tumor at Dogs (adult) | 16 Sr*? plus smail Sr® contamination, Srplus small Sr con- Dogs (pup- 2 or more. Dogs (adult).) 1........ Liv... tamination. es) No a Bre le. 0,5 etsy TTR eB 80 70 50 6e py). on ATHOUY KOd 4........ Tee Patients treated at U. of Calif. hospital in early ’40’s. In many of the eases, the dose was admin- istered in several subdivisions over a period of a few months. Other patients treated on which data at present unavailable. Surviving patients should be followed, although with little expectation of significant findings. Dogs included adults, young adults, pups. Somewhat better correlation of effect with injected dose than with retained dose. Some survive at 814 yrs. 8 yrs. 1 suffered bone fracture at 3 yrs., slight localized changes in mandibles. Fractures, loss of teeth, underdevelopment of mandibles. Tumer in Some survive at 844 yrs. Alive at 8 yrs. 1 dog. Died 18 days. ..............0-2005 Acute radiation syndrome, survived more than 3 months. 1 suffered fracture, 2 no lesions at 6 years. Retention not measured. Retention not measured. FO INETTIRESPR a Seat TE Ra etrT roeerpwen 7 . ‘“ re .

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