Sodium selenite has been shown to inhibit Na,K-ATPase. Glutathione, at sufficient excess, is able to prevent or reverse the inhibition. Dithiothreitol can also reverse much of the inhibition, but KCN cannot. Selenomethionine does not inhibit Na,K-ATPase. The interactions of sodium selenite with Na,K-ATPase and glutathione may aid in understanding the early events in selenium cataractogenesis.
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Bergad et al. (1986) studied this question.
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