Dosage-Mortality in Rats Given Total Body Roentgen Irradiation.
- 1 June 1949
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 71 (2), 214-216
- https://doi.org/10.3181/00379727-71-17138
Abstract
Summary The LD50 for total body X-radiation in Wistar rats is 640 ± 5 r with a 30-day endpoint. The time elapsing before 50%percnt; mortality occurs at different doses is a more reliable measure of mortality than the dosage-mortality curve or the dosage-survival time curves for different X-ray doses. The dosage-mortality curve of rats has such a steep slope in the LD50 range that variations in mortality of from O to nearly 100%percnt; may occur in this range because of variations in animals and in the X-ray machine output. Therefore in studies directed toward (therapy or protection of animals given total body ionizing radiation, if the mortality curves are extremely steep as in the rat, dosages in the LD50 range should not be used. Other measures which might be employed are discussed.Keywords
This publication has 3 references indexed in Scilit:
- The Lethal Dose of Total-Body X-Ray Irradiation in SwineRadiology, 1949
- The Clinical Sequence of Physiological Effects of Ionizing Radiation in AnimalsRadiology, 1947
- FACTORS WHICH DETERMINE RENAL WEIGHTAmerican Journal of Physiology-Legacy Content, 1927