PMID: 3757979Oct 1, 1986Paper

Influence of copper and iron on subacute cadmium intoxication in protein-malnourished rats

Environmental Research
P C TewariS K Tandon

Abstract

Male albino rats maintained on low-protein (9%) diets were dosed intraperitoneally with 0.75 mg Cd/kg, as cadmium chloride, for 20 days. Groups of these animals were provided with diets supplemented with 40 ppm Cu, 400 ppm Fe or a combination of both during the exposure period. Hepatic and renal distribution of Cd, Zn, Cu, and Fe along with activity of acid and alkaline phosphatases and ribonuclease and glutathione content were studied. Uptake of Cd both in liver and in kidney was significant and was accompanied by increased Zn and depletion of Fe concentration. The Cu level remained unaltered. Dietary supplementation of Cu or Fe interacted effectively and influenced the metal distribution. Acid and alkaline phosphatases in both liver and kidney were inhibited by Cd exposure. However, Cu and/or Fe supplements could to a varying degree offset the Cd-induced inhibition. Cadmium exposure did not, however, elicit any effect on hepatic and renal ribonuclease activity of low-protein-fed animals. The glutathione concentration registered profound increase on Cd exposure, possibly to act as a defence mechanism.

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Citations

Apr 1, 1992·Comparative Biochemistry and Physiology. C, Comparative Pharmacology and Toxicology·M E BlazkaZ A Shaikh

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