INFLUENCE OF LACTATION OF THE RETENTION OF A SINGLE DOSE OF STRONTIUM-90 IN RATS
Strontium-90 was injected in female mice wtthin the day after delivery. The experiment was arranged so as to a1low the estimate of net removal of Sr/sup 90/ from bone during a three day period by comparing radioactivity of the femora at 3 and 21 days after injection of the isotope. Retention of Sr/sup 90/ in the skeleton of the controls (virgin rats) was 49% of the injected dose (retention of skeleton = retention of femur x 20) 3 days after injection. At the same time, the nursing animals retained 4.16% of the injected dose. Twenty-one days after the injection the radioactivities were 35% of the injected dose for virgil rats and 20.8% for nursing rats. The results demonstrate a considerable capacity of nursing rats to mobilize radiostrontium from their skeleton later than 3 days after injection of the isotope. (P.C.H.)
- Research Organization:
- Heiligenberg-Institut, Ger.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-000030
- OSTI ID:
- 4165923
- Journal Information:
- Nature, Journal Name: Nature Vol. Vol: 200
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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