Frequency and polymorphism of Hassall’s corpuscles in normal thymus of nutria (Myocastor coypus)
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2009, Vol 2, Issue 2
Abstract
Thymus from three clinically healthy 12-month-old age nutria were collected and histologically processed. Microscopic examination showed that the thymus contains numerous Hassall’s corpuscles in various stages of development, from very small (10-15 μm), composed of 1-2 degenerate reticuloepithelial cells, to very large corpuscles (sometimes exceeding 500 μm). In nutria, the genesis of Hassall’s corpuscles is more rapid than in most mammals. The corpuscles showed extended polymorphism, from round corpuscles to very particular forms, even odd, in some cases. The degenerated reticulo-epithelial cells represent the starting point in Hassall’s corpuscles formation. They ensure the growth of Hassall’s corpuscles and their adhesion to the reticulo-epithelial network, as well as the binding of two or more adjacent corpuscles. In a more advanced stage, increase in size of the joint corpuscles reduce the separating spaces up to absence, resulting corpuscles that appear like entities of 5-10 joint corpuscles, in different stages of organization. The fast genesis of Hassall’s corpuscles and inter corpuscular binding by means of degenerate reticulo-epithelial cells causes the particular polymorphism of these corpuscles with nutria.
Authors and Affiliations
Viorel Miclăuş, I. Petrescu-Mag, Vasile Rus, Daniel Cadar, Liviu Oana, Ciprian Ober
Keywords
Related Articles
- EP ID EP83104
- DOI -
- Views 127
- Downloads 0
Increasing of survival rate to Acipenser persicus by added Clinoptilolite zeolite in acute toxicity test of ammonia
The experiments were done to increase the survival rate to Acipenser persicus by added Clinoptilolite zeolite in lethal concentration of ammonia. Twelve fishes with average weight 26 ± 3 g were exposed to different conce...
The effect of fipronil on some reproduction parameters of zebrafish (Danio rerio)
Our research investigated the effects of fipronil on the reproduction dynamics and parameters of the zebrafish (Danio rerio). The experiment consisted in exposing ready to spawn fish and the spawn itself to three d...
International Symposium ACVAPEDIA 2009
Researches regarding the influence of royal jelly on sex reversal in zebra fishes (Danio rerio).
In this study we observed the influence of royal jelly on sex reversal in zebra fishes (Danio rerio). Experiments were made in the laboratories of aquaculture from Faculty of Animal Science and Biotechnologies, Timișoara...
The role of aquaculture for assuring the sustainable development of our society
Economic activities, industrial and agricultural ones, have the direct goal to help increasing the quality of life of our society. Beside positive direct and desired effects of the economic activities, these have also ne...