Insulin and Glucagon Responses in the Hibernating Black Bear

  title={Insulin and Glucagon Responses in the Hibernating Black Bear},
  author={Pasquale J. Palumbo and DIANNE L. WELLIK and NANCY A. BAGLEY},
To study the hormonal changes during hibernation in the black bear (Ursus americanus), 2 adult male bears were injected with insulin and with glucagon during their active and hibernating phases, and plasma urea, glucose, insulin, glucagon, and corticosteroids were measured before and after. The baseline urea values decreased during hibernation a pattern consistent with protein conservation. Baseline insulin values increased during the fall active phase, when bears are hyperphagic, returning to… CONTINUE READING


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