PMID: 2484234Nov 1, 1989Paper

Dietary saturated or polyunsaturated fat and copper deficiency in the rat

Biological Trace Element Research
S M Lynch, J J Strain

Abstract

Dietary fat-type and copper (Cu) deficiency have been independently identified as potentially important factors in the etiology of ischemic heart disease (IHD); a disease that has been linked to inflammation and oxygen free radical (OFR) mediated damage. Group (n = 6) of male, weanling, Wistar rats were provided ad libitum with deionized water and control or low Cu diets containing (200 g/kg) either saturated or polyunsaturated fatty acids (SFA or PUFA, respectively) for 56 d. Measurement of several indices of Cu status indicated that both groups fed the low Cu diets were Cu-deficient. SFA consumption resulted in significantly increased hepatic Cu (p less than 0.001) and iron (Fe) (p less than 0.001) concentrations and xanthine oxidase activity (p less than 0.05) and significantly decreased hepatic glucose-6-phosphate dehydrogenase activity (p less than 0.001). Although Cu deficiency resulted in significantly decreased hepatic copper-zinc superoxide dismutase (CuZnSOD) activity (p less than 0.01), no significant effect on the activities of the other hepatic antioxidant enzymes, manganese superoxide dismutase, catalase, and glutathione peroxidase, or glutathione reductase, were observed. Cu deficiency also resulted in significan...Continue Reading

References

Jun 1, 1979·Analytical Biochemistry·H OhkawaK Yagi
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