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Electron microscopic study of the parathyroid gland of the calcium-treated hamster subjected to hypergravity environment

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Electron microscopic study of the parathyroid gland of the calciumtreated hamster subjected to hypergravity environment.pdf(1.16 MB)
Date
1990
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Authors
Shizuko Shoumura ; Shoichi Emura ; Tomo Yamahira ; Huayue Chen ; Kenjiro Kanbara ; Michio Arakawa ; Hideo Isono
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Publisher
Murcia : F. Hernández
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Noriko Ishizaki
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The ultrastructure of the parathyroid glands of calcium-treated golden hamsters subjected to 5 gravity environment was studied. In the calcium-treated animals exposed to hypergravity environment, the Golgi complexes and cisternae of the granular endoplasmic reticulum were significantly decreased compared with those of the animals exposed to hypergravity environment only and appeared to increase compared with those of the calcium-treated animals, but were almost similar to those of the control animals. In addition, many chief cells contained some prosecretory granules in the Golgi areas, some secretory granules situated close to the plasma membrane and many lysosomes. The morphology of the parathyroid glands in the calcium-treated animals exposed to hypergravity environment resembled that of the control animals. These results suggest that the parathyroid glands suppressed by treatment of calcium and stimulated in response to hypergravity environment may indicate the secretory activity of the parathyroid glands of the control animals.
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Parathyroid , Calcium
Citation
URI
http://hdl.handle.net/10201/18142
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Histology and histopathology Vol. 5, nº 1 (1990)
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