alexa Inhibition of aflatoxin B1-DNA binding and adduct formation by selenium in rats.


Immunome Research

Author(s): Shi CY, Chua SC, Lee HP, Ong CN

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The effect of selenium on aflatoxin B1-DNA binding and adduct formation was studied. Male Fischer 344 rats, fed with up to 8 ppm of sodium selenite in drinking water for 8 weeks, were given a single i.p. dose of aflatoxin B1. The rats were killed 24 h later and the amount of AFB1 bound to hepatic DNA and the amount of DNA adducts formed were determined. Selenium pretreatment resulted in a dose-dependent inhibition of AFB1-DNA binding as well as adduct formation. This was accompanied by an increase of reduced glutathione (GSH) in the liver of selenium-treated animals. These results suggest that selenium could effectively inhibit AFB1-induced DNA damage, which may be partially responsible for its anticarcinogenic effect against AFB1.

This article was published in Cancer Lett and referenced in Immunome Research

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