Abstract
INVESTIGATIONS of the metabolism of strontium and calcium in various species have shown that the two elements, though qualitatively similar, have distinct quantitative differences. The differential movement of strontium and calcium across physiological barriers is expressed by the term ‘Strontium–Calcium Observed Ratio’ (OR) and is given by: The ORbone-diet values for laboratory and domestic animals (cow, goat, sheep and rat) under usual dietary conditions range from 0.2 to 0.5 with most of the values at about 0.25 (refs. 1 and 2). Limited data for man suggest a range of 0.25–0.5 under different dietary and environmental conditions. Unfortunately, few data have been reported for the dog.
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References
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Della Rosa, R. J., 5th Annual Progress Report, UCD 106, 86 (Univ. California, Davis, California, 1962).
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DELLA ROSA, R., GOLDMAN, M., ANDERSEN, A. et al. Absorption and Retention of Ingested Strontium and Calcium in Beagles as a Function of Age. Nature 205, 197–198 (1965). https://doi.org/10.1038/205197a0
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DOI: https://doi.org/10.1038/205197a0
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