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Toxicol Lett. 1990 Nov;54(1):77-81.

Cadmium-induced route-specific alterations in essential trace element homeostasis.

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  • 1Division of Cancer Etiology, National Cancer Institute, Frederick, MD 21702.


To determine if route-specific differences in essential trace element homeostasis occur after cadmium (Cd) exposure, selected metals (Zn, Fe, Ca, K, Cu, Mg, and Cd) were determined in testis, liver and lung after subcutaneous and intravenous Cd treatment. Cd by the subcutaneous route had the most pronounced effects on essential trace element homeostasis in the testes, increasing the concentration of Zn (51%), Fe (242%), Ca (95%), K (93%), and Cu (345%) in conjunction with a decrease of testicular Mg (46%), while few changes occurred with intravenous Cd. In the lung, modest changes of all elements except Ca and Cu were observed with Cd. However, alterations in Fe and Zn concentration were seen only in the liver. The present study suggests that levels of the essential metals in a particular tissue can be modified depending on the route of Cd administration.

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