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Dietary cholesterol lowers liver copper in rabbits

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Abstract

Atherosclerosis and hypercholesterolemia have been produced in rabbits since 1913 by feeding them cholesterol. These experiments have a great influence on current thinking about the etiology and possible prevention of ischemic heart disease. Male, New Zealand White rabbits were fed 0.5% dietary cholesterol. Cholesterol and copper in plasma increased sixty-fold and 50%, respectively. Liver copper decreased 74% and hematocrit decreased 25%. Iron was unchanged in heart and liver, but was increased in kidney. Zinc was decreased in heart, but was unchanged in liver or kidney. Changes in organ iron and zinc were smaller than the decrease in liver copper. Similar experiments with higher doses of dietary cholesterol may have resulted in copper deficiency. It may be appropriate to revise interpretations of data from these experiments and to reformulate hypothesis based on the data. Results are consonant with the theoretical implication of copper metabolism and copper deficiency in the etiology and pathogenesis of ischemic heart disease.

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  1. Agricultural Research Service, Grand Forks Human Nutrition Research Center, United States Department of Agriculture, 58202, Grand Forks, ND

    Leslie M. Klevay

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  1. Leslie M. Klevay
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Klevay, L.M. Dietary cholesterol lowers liver copper in rabbits. Biol Trace Elem Res 16, 51–57 (1988). https://doi.org/10.1007/BF02795333

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  • DOI: https://doi.org/10.1007/BF02795333

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