Structural and biochemical modifications in parotid gland induced by fasting.
Structural, ultrastructural and biochemical modifications produced by fasting in the parotid gland of guinea pig, were studied. The highest storage of secretory granules was found in the apical cytoplasm after a 12 hour fasting period. The curve of soluble proteins showed that the highest storage of proteins in the parenchyma took place after a 10/12 hour fasting period. Amylase activity reached its highest point after a 10 hour fasting period. We suggest that granules stored in cellular cytoplasm after a 12 hour fasting period would have completed their maturation cycle.
de Crosa
M G
MG
Department of Histology A, Faculty of Dentistry, University of Córdoba, Argentina.
de Nuñez
A M
AM
de Fabro
S P
SP
D000681:Amylases / Q000378:metabolism; D000818:Animals; D005215:Fasting / Q000378:metabolism*; D006168:Guinea Pigs; D008297:Male; D010306:Parotid Gland / Q000166:cytology* / Q000378:metabolism*; D011506:Proteins / Q000378:metabolism; D022142:Secretory Vesicles / Q000648:ultrastructure; D013997:Time Factors
D011506:Proteins; D000681:Amylases