EFFECT OF CALCIUM ON DEPOSITION OF STRONTIUM-90 AND CALCIUM-45 IN RATS
Three groups of 16 mature female rats were maintained for 30 days on diets containing 0.5% phosphorus, and 0.1, 0.5, or 2.0% calcium. After this 30- day conditioning period, strontium -90, calcium-45, and insoluble chrominm oxide labeled with Cr/sup 51/ were added to the diets. Four animals from each group were sacrificed after 3, 6, 13, or 24 days on the labeled diet. One femur and a blood sample were assayed for calcium-45 and strontium-80. Total calcium and phosphorus were determined in the second femur. Food consumption was estimated from measurements of chromium-61 in the totnl feces and contents of the gastrointestinal tract. Data are tabulated. Within each dietary group there was a trend toward lower values for the Sr/sup 90//Ca/aup 45/ ratio as time on the labeled diet increased. The effect of dietary calcium levels on strontium-80 bone uptake is discussed. (C.H.)
- Research Organization:
- General Electric Co., Richland, Wash.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-010354
- OSTI ID:
- 4325088
- Journal Information:
- Science See Saiensu, Journal Name: Science See Saiensu Vol. Vol: 127; ISSN SIENDS1
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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