Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders
December 2, 2011
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.
Citation Information
Publication Year | 2011 |
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Title | Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders |
DOI | 10.1002/etc.522 |
Authors | J. Christian Franson, David J. Hoffman, Paul L. Flint |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Environmental Toxicology and Chemistry |
Index ID | 70004057 |
Record Source | USGS Publications Warehouse |
USGS Organization | Alaska Science Center; National Wildlife Health Center; Patuxent Wildlife Research Center; Contaminant Biology Program |