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

  1. J. Christian Franson1,*,
  2. David J. Hoffman2,
  3. Paul L. Flint3

Article first published online: 2 APR 2011

DOI: 10.1002/etc.522

Issue

Environmental Toxicology and Chemistry

Environmental Toxicology and Chemistry

Volume 30, Issue 6, pages 1479–1481, June 2011

Additional Information

How to Cite

Franson, J. C., Hoffman, D. J. and Flint, P. L. (2011), Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders. Environmental Toxicology and Chemistry, 30: 1479–1481. doi: 10.1002/etc.522

Author Information

  1. 1

    U.S. Geological Survey, National Wildlife Health Center, Madison, Wisconsin

  2. 2

    U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland

  3. 3

    U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska

*U.S. Geological Survey, National Wildlife Health Center, Madison, Wisconsin.

Publication History

  1. Issue published online: 9 MAY 2011
  2. Article first published online: 2 APR 2011
  3. Accepted manuscript online: 9 MAR 2011 08:38PM EST
  4. Manuscript Accepted: 17 FEB 2011
  5. Manuscript Revised: 26 JAN 2011
  6. Manuscript Received: 6 OCT 2010

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Keywords:

  • Common eider;
  • Long-tailed duck;
  • Selenium;
  • Glutathione metabolism;
  • Alaska

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. Environ. Toxicol. Chem. 2011; 30:1479–1481. © 2011 SETAC

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