QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

First published online November 5, 2004
Journal of Experimental Biology 207, 4225-4230 (2004)
Published by The Company of Biologists 2004
doi: 10.1242/jeb.01280

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Related articles in JEB Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Koko, V. Articles by Davidoviæ, V. Search for Related Content PubMed PubMed Citation Articles by Koko, V. Articles by Davidoviæ, V. Social Bookmarking                         What's this?

Effect of acute heat stress on rat adrenal glands: a morphological and stereological study

Vesna Koko^*, Jelena Djordjeviæ, Gordana Cvijiæ and Vukosava Davidoviæ

Faculty of Biology, University of Belgrade, Serbia and Montenegro

^* Author for correspondence (e-mail: vesnak{at}bf.bio.bg.ac.yu)

Accepted 7 September 2004

The morphological and stereological structure of rat adrenal gland was analysed by light microscopy after an acute (60 min) exposure to high ambient temperature (38°C). A significant increase in plasma corticotrophin (ACTH) and serum corticosterone (CORT) concentrations was observed, confirming that acute heat exposure has a strong stressful effect. Under these conditions the adrenal gland mass and volume were decreased, probably as the consequence of adrenal cortex reduction, especially that of the zona fasciculata (ZF). Histological examination revealed that many ZF cells were deprived of lipid droplets. Fibrosis was observed in all parts of the adrenal gland, both cortex and medulla, of heat stressed animals. Mitotic figures were absent in cortical cells after heat exposure, but there were no differences in ZF and zona reticularis (ZR) small blood vessels compared to nonstressed controls.

Key words: heat stress, rat, adrenal gland, histology

CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

Related articles in JEB:

IF YOU CAN'T STAND THE HEAT...

Kathryn Phillips
JEB 2004 207: iii. [Full Text]  

This article has been cited by other articles:

				D. R Lemos, J. L Downs, M. N Raitiere, and H. F Urbanski Photoperiodic modulation of adrenal gland function in the rhesus macaque: effect on 24-h plasma cortisol and dehydroepiandrosterone sulfate rhythms and adrenal gland gene expression J. Endocrinol., May 1, 2009; 201(2): 275 - 285. [Abstract] [Full Text] [PDF]

				Y. Tahera, I. Meltser, P. Johansson, A. C. Hansson, and B. Canlon Glucocorticoid Receptor and Nuclear Factor-{kappa}B Interactions in Restraint Stress-Mediated Protection against Acoustic Trauma Endocrinology, September 1, 2006; 147(9): 4430 - 4437. [Abstract] [Full Text] [PDF]

				K. Dokladny, P. L. Moseley, and T. Y. Ma Physiologically relevant increase in temperature causes an increase in intestinal epithelial tight junction permeability Am J Physiol Gastrointest Liver Physiol, February 1, 2006; 290(2): G204 - G212. [Abstract] [Full Text] [PDF]

				K. Phillips IF YOU CAN'T STAND THE HEAT... J. Exp. Biol., November 15, 2004; 207(24): iii - iii. [Full Text] [PDF]