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  • Title: Renal binding of cadmium in the rat following intragastric exposure.
    Author: Szymańska JA, Bem EM, Piotrowski JK, Brzeźnicki S, Baran T.
    Journal: Toxicology; 1989 May 15; 55(3):339-48. PubMed ID: 2718182.
    Abstract:
    Renal binding of cadmium was compared in groups of rats administered cadmium intragastrically or subcutaneously in doses resulting in similar renal cadmium concentrations. In rats administered cadmium intragastrically the renal concentrations of copper and metallothionein were lower, suggesting disturbance in copper metabolism. These changes were alleviated gradually in the post-exposure period. In experiments with 64Cu it has been shown that intragastric exposure to cadmium reduced copper absorption to about 21% of that in the control rats, thus explaining the poor copper availability for renal binding of cadmium in the form of Cd,Cu-metallothionein. Changes in zinc uptake were less strongly marked and were limited to slight decrease of zinc content in the kidneys.
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