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American Journal of Pathology, Vol 126, 376-383, Copyright © 1987 by American Society for Investigative Pathology

REGULAR ARTICLES

Abrogation of adriamycin-induced cardiotoxicity by selenium in rabbits

NV Dimitrov, MB Hay, S Siew, DA Hudler, LJ Charamella and DE Ullrey

Adriamycin-induced cardiomyopathy in rabbits was produced by intravenous injections of the drug with a short therapeutic schedule (3 mg/kg body wt administered as four intermittent doses). Animals receiving selenium supplementation of Adriamycin showed preservation of the normal pattern of the heart histologic picture. The protective effect of selenium was accompanied by increased selenium levels in the plasma and the heart muscle. An eventual interaction between the antitumor effect of Adriamycin and the protective effect of selenium was ruled out by in vitro experiments using the L1210 cell line. Selenium did not abrogate the antiproliferative effect of Adriamycin when the cells were treated simultaneously with both agents. The results from this study indicate that Adriamycin-induced cardiotoxicity could be prevented by selenium if the animals were pretreated with selenium, rather than simultaneous administration of both agents. The mechanism of this effect is not entirely understood.


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Copyright © 1987 by the American Society for Investigative Pathology.