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Immunocytochemical study of the glucocorticoid receptor in rat liver nuclei after hyperthermic stress

✍ Scribed by Aleksandra Čvoro; Aleksandra Korać; Gordana Matić

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 400 KB
Volume: 27
Category: Article
ISSN: 1065-6995
DOI: 10.1016/s1065-6995(03)00019-2

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✦ Synopsis

Abstract

The presence of glucocorticoid receptors (GR) in rat liver nuclei over a 24 h time period following hyperthermic stress at 41 °C was immunocytologically studied using unfixed nuclear smears. Liver nuclei in unstressed animals were found to be immunonegative for GR. However, intense GR immunopositivity followed by a subsequent gradual decrease in receptor levels was observed in the nuclei of test animals during the first 2 h after stress. This stress‐related increase in the receptor nuclear level was greater than the increase seen after dexamethasone administration. These results suggest that hyperthermic stress could potentiate the hormonal stimulation of receptor nuclear translocation.

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