Effects of continuous light on rat parotid gland structure and reactivity.
Anat Embryol (Berl)
; 179(5): 497-501, 1989.
Article
em En
| MEDLINE
| ID: mdl-2471423
ABSTRACT
The effects of continuous light on ultrastructural organization and sympathetic secretory responses of the rat parotid gland are reported. After 50 days of continuous light exposure, the fine structure of the parotid gland exhibited features of enhanced secretory activity as judged by the striking development of rough endoplasmic reticulum and Golgi complexes, the depletion of secretory granules and the increased turnover of secretory cells. The secretory responses of parotid gland to isoproterenol revealed that continuous light induced a 30% increase in amylase release. This secretory hyperactivity appears to be related to a postsynaptic supersensitivity of sympathetic fibers of the autonomic nervous system.
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Base de dados:
MEDLINE
Assunto principal:
Glândula Parótida
/
Luz
Limite:
Animals
Idioma:
En
Ano de publicação:
1989
Tipo de documento:
Article