Abstract
In female rats intravenously injected with 203HgCl 2 (0.6 mg Hg 2+ per kg body wt.) the effect of intraperitoneal administration of selenite or selenate (0.525 mg Se per kg body wt.) on distribution and excretion of 203Hg was studied. The content of 203Hg was lower in kidney and higher in liver and blood in the groups treated with selenate or selenite when compared with rats which received only mercury. The brain content of 203Hg was significantly increased in rats injected with selenite. Both selenium compounds injected immediately after mercury significantly decreased urinary as well as biliary excretion of 203Hg. A transient increase in the rate of biliary excretion of 203Hg during the first 2 h after administration was observed in rats treated with selenate. This finding seems to support the idea that the reduction of selenate to selenite in the body is not rapid but takes at least several hours.
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