Ultrastructural study on the effects of hypophysectomy on the golden hamster parathyroid gland.
The ultrastructure of the parathyroid glands of hypophysectomized golden hamsters was studied. In the parathyroid glands of hypophysectomized animals the Golgi complexes and secretory granules were significantly decreased and large vacuolar bodies were significantly increased compared with those of the control animals. In addition, the chief cells contained a few prosecretory granules in the Golgi areas and a few secretory granules were present in the peripheral cytoplasm. These results suggest that the synthesis and release of parathyroid hormone may be suppressed in the parathyroid glands of the hypophysectomized animals.
Emura
S
S
Department of Anatomy, Gifu University School of Medicine, Japan.
Shoumura
S
S
Utsumi
M
M
Chen
H
H
Yamahira
T
T
Hayakawa
D
D
Arakawa
M
M
Isono
H
H
D000818:Animals; D006224:Cricetinae; D003593:Cytoplasm / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D007016:Hypophysectomy; D008647:Mesocricetus; D010280:Parathyroid Glands / Q000648:ultrastructure*; D014617:Vacuoles / Q000648:ultrastructure