Selenium-dependent and non-selenium-dependent glutathione peroxidase in human tissues of New Zealand residents.

Abstract

Glutathione peroxidase was assayed in human tissues of New Zealand residents by the coupled assay method. Total glutathione peroxidase was assayed using cumene hydroperoxide. The non-selenium-dependent activity was not detected with t-butyl hydroperoxide and thus was determined from the difference between total activity and the selenium-dependent activity using hydrogen peroxide or t-butyl hydroperoxide. Only selenium-dependent activity was found in whole blood, erythrocytes, platelets and biopsy skeletal muscle. A small non-selenium dependent activity was measured in plasma and a larger activity in biopsy liver supernatant and homogenate. Glutathione-S-transferase was detected in all tissues.

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@article{Thomson1985SeleniumdependentAN, title={Selenium-dependent and non-selenium-dependent glutathione peroxidase in human tissues of New Zealand residents.}, author={Christine D. Thomson}, journal={Biochemistry international}, year={1985}, volume={10 4}, pages={673-9} }