Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders

J. Christian Franson; David J. Hoffman; Paul L. Flint

doi:10.1002/etc.522

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Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders

J. Christian Franson·David J. Hoffman·Paul L. Flint

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Abstract

The relationships of selenium (Se) concentrations in whole blood with plasma activities of total glutathione peroxidase, Se-dependent glutathione peroxidase, and glutathione reductase were studied in long-tailed ducks ( Clangula hyemalis ) and common eiders ( Somateria mollissima ) sampled along the Beaufort Sea coast of Alaska, USA. Blood Se concentrations were >8 μg/g wet weight in both species. Linear regression revealed that the activities of total and Se-dependent glutathione peroxidase were significantly related to Se concentrations only in long-tailed ducks, raising the possibility that these birds were experiencing early oxidative stress.

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Environmental Toxicology and Chemistry Article

Source-reported bounding extent: 69.9980521068182° to 70.83024762385253° latitude; -150.13916015625° to -145.17333984375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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BibTeX RIS

J. Christian Franson, David J. Hoffman, Paul L. Flint. 2011-06-01. Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders. https://doi.org/10.1002/etc.522

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