Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/55
Title: Effect of acute heat stress on rat adrenal cortex - a morphological and ultrastructural study
Authors: Petrović-Kosanović, Dragana
Veličković, Ksenija 
Koko, Vesna
Jasnić, Nebojša 
Cvijić, Gordana
Čakić Milošević, Maja 
Keywords: Adrenal gland;Heat stress;Lipid droplets;Mitochondria;Ultrastructure
Issue Date: 1-Aug-2012
Journal: Central European Journal of Biology
Abstract: 
The stereological structure of rat adrenal gland was analysed by light and electron microscopy after an acute (60 min) exposure to high ambient temperature (38°C). Under these conditions a significant increase in plasma corticotrophin (ACTH), serum corticosterone and aldosterone levels were observed. Histological and stereological investigation at light microscopy showed significant decrease in volume density of capsule and zona glomerulosa, increase in volume of fasciculata cells, and decrease of numerical density of zona fasciculata cells and mean diameter of blood vessels. At the ultrastructural level, volume density of nuclei and mitochondria of zona glomerulosa cells were significantly increased and that of lipid droplets decreased. Volume density of mitochondria of fasciculata cells was significantly increased, while number of lipid droplets per μm 2 of cell was reduced. In the cells of zona reticularis significant increase in the number of lipid droplets was found. The response of zona glomerulosa may be interpreted as immediate reaction to dehydration, while alterations detected in zona fasciculata, which were less extensive, were related to purely stressogenic effects of high ambiental temperature.
URI: https://biore.bio.bg.ac.rs/handle/123456789/55
ISSN: 1895-104X
DOI: 10.2478/s11535-012-0055-y
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