Abstract
The effect of copper and sodium intake upon liver cholesterol concentrations, fatty acid profile, and mineral concentrations were studied in the Long-Evans rat. Forty-eight male weaning rats were divided into three groups of 16 each and fed a semipurified diet containing either 0, 3, or 8 mg of added copper/kg of diet. At 100 d of age, half of the animals in each group were given 1% NaCl as drinking water and the other half was given deionized-distilled water for 12 wk. Copper deficiency in rats produced elevations in liver palmitate and oleate concentrations, but decreases in linoleate concentrations. The ratio of oleate:stearate was higher in copper deficient rats. Liver copper levels were decreased, but liver iron concentrations were elevated in copper deficient rats. Sodium intake did not have an effect on any of the parameters studied. These results suggested that dietary copper deficiency alters both liver mineral and fatty acid composition.
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