Effects of pinealectomy on the ultrastructure of the golden hamster parathyroid gland.
Ultrastructural changes of the parathyroid glands of pinealectomized golden hamsters were investigated. The main changes in the parathyroid glands 1 hour and 1 day after pinealectomy compared with the control and sham-operated groups were an increase of the Golgi complexes, cisternae of the granular endoplasmic reticulum and large vacuolar bodies. In addition, many chief cells contained numerous prosecretory granules in the Golgi areas and many secretory granules in the peripheral cytoplasm. The morphology of the parathyroid glands 7 and 30 days after pinealectomy resembled that of the control parathyroid glands. These results suggest that pinealectomy affects the secretory activity of the parathyroid gland.
Chen
H
H
Department of Anatomy, Gifu University School of Medicine, Japan.
Shoumura
S
S
Emura
S
S
Utsumi
M
M
Yamahira
T
T
Isono
H
H
D000818:Animals; D006224:Cricetinae; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D008647:Mesocricetus; D008854:Microscopy, Electron; D010280:Parathyroid Glands / Q000378:metabolism / Q000648:ultrastructure*; D010870:Pineal Gland / Q000502:physiology*