Vol. 45, No. 1 Supplementum, 2001 content next

HISTOLOGICAL CHANGES IN THE ADRENAL GLANDS OF NEWLY HATCHED JAPANESE QUAIL CHICKS DURING A SHORT STAY ON THE ORBITAL STATION "MIR"

Cigánková, V., Zibrín, M., Kočišová, J., Sabo, V.*, Boďa, K.**, Dadasheva, O. A.***, Guryeva, T. S.***

University of Veterinary Medicine
Komenského 73
041 81 Košice
The Slovak Republic		 * Institute of Animal Biochemistry and Genetics SAS
900 28 Ivanka pri Dunaji
The Slovak Republic		 ** Research Institute of Veterinary Medicine
900 28 Ivanka pri Dunaji
The Slovak Republic		 *** State Scientific Centre - Institute of Biomedical Problems
76A Khoroshevskoye shosse
Moscow 123007
Russia

Summary

A significant accumulation of lipid droplets, which were much more larger compared to the control, was found in the cortical cells of adrenal glands. Mitochondria and cisternae of the endoplasmic reticulum were strongly dilated. Accumulation of lipid droplets indicates a reduction in cholesterol transformation and impairment of steroidogenesis. Medullary chromophilic cells were not significantly damaged. In the cytoplasm they contained numerous darker granules limited by a continuous membrane. Some of them had dilated mitochondria and dilated cisternae of the endoplasmic reticulum.
We suppose that some morphological changes described in the tissue of adrenal glands under space conditions are reversible and probably originated due to the load effect which stressed the organism.

Key words: Japanese quails; adrenal gland; space flight; morphology

References

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Folia Veterinaria / 2001