These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [The hormonal content of the hypophyseal-adrenocortical system in the blood of the suslik Citellus undulatus at different seasons of the year].
    Author: Shvareva NV, Nevretdinova ZG.
    Journal: Zh Evol Biokhim Fiziol; 1988; 24(2):188-94. PubMed ID: 2842983.
    Abstract:
    Radioimmune assay has been made of the content of ACTH and cortisol in the peripheral blood of the ground squirrel Citellus undulatus parryi at various seasons and during a short hibernation period. Within annual cycle, negative relationship was observed between ACTH and cortisol levels. Cortisol content decreases from Autumn to Winter; the content of ACTH in the blood plasma, measured during periodic arousals, increases progressively during hibernation. Concentration of both hormones significantly decreases in sleeping animals, increasing during arousals. At the beginning of hibernation period, cortisol content gradually decreases. During self-warming of arousing animals, cortisol content remains low. The decreased production of cortisol in hibernating animals is presumably associated with the increase in the threshold of sensitivity of the adrenal receptors to stimulating effect of ACTH. The role of glucocorticoids and ACTH in the metabolism of hibernating animals is discussed.
    [Abstract] [Full Text] [Related] [New Search]