Ultrastructural changes of the parathyroid
glands of isoproterenol-treated golden hamsters were
investigated.
Many chief cells in the parathyroid glands after 5 and
10 minutes of administration of isoproterenol contain
well-developed Golgi complexes and granular endoplasmic
reticulum, numerous prosecretory granules, and many
secretory granules in the peripheral cytoplasm as compared
with the control animals.
Many chief cells in the parathyroid glands after 1,3,6
and 12 hours of administration have poorly-developed
Golgi complexes, granular endoplasmic reticulum, many
secretory granules and numerous lipid droplets as compared
with the control animals.
The morphology of the parathyroid gland after 30
minutes and 24 hours of administration resembles that of
the control animals.
It is considered that isoproterenol affects the
secretory activity of the parathyroid gland.