Effect of acute heat stress on rat adrenal cortex — a morphological and ultrastructural study
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 µm2 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.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Effect of acute heat stress on rat adrenal cortex — a morphological and ultrastructural study ; volume:7 ; number:4 ; year:2012 ; pages:611-619 ; extent:9
Open life sciences ; 7, Heft 4 (2012), 611-619 (gesamt 9)
- Creator
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Petrovic-Kosanovic, Dragana
Velickovic, Ksenija
Koko, Vesna
Jasnic, Nebojsa
Cvijic, Gordana
Miloševic, Maja
- DOI
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10.2478/s11535-012-0055-y
- URN
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urn:nbn:de:101:1-2409201920242.865887970029
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:25 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Petrovic-Kosanovic, Dragana
- Velickovic, Ksenija
- Koko, Vesna
- Jasnic, Nebojsa
- Cvijic, Gordana
- Miloševic, Maja
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