Cortisol levels in hair of East Greenland polar bears.

  title={Cortisol levels in hair of East Greenland polar bears.},
  author={Thea \Ostergaard Bechsh\oft and Caroline Sonne and Rune Dietz and Erik Wolder Born and Margaret A Novak and Elizabeth Henchey and Joseph S Meyer},
  journal={The Science of the total environment},
  volume={409 4},
To demonstrate the ability to assess long-term hypothalamic-pituitary-adrenocortical (HPA) axis activity in polar bears (Ursus maritimus), a pilot study was conducted in which cortisol concentrations was analyzed in hair from 7 female (3-19 years) and 10 male (6-19 years) East Greenland polar bears sampled in 1994-2006. The hair was chosen as matrix as it is non-invasive, seasonally harmonized, and has been validated as an index of long-term changes in cortisol levels. The samples were… CONTINUE READING
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