[Aging changes of alpha-amylase and lysozyme in normal parotid gland]
Related Experiment Video
Updated: Oct 2, 2026

Radiation Treatment of Organotypic Cultures from Submandibular and Parotid Salivary Glands Models Key In Vivo Characteristics
Published on: May 17, 2019
1Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Beijing 100081, China.
Objective:
To investigate the aging changes, the distribution and the content of alpha-amylase, lysozyme in the normal parotid glands.
Methods:
Fifty-one specimens of parotid glands with 4 different age groups were studied by immunohistochemical method. The intensity of staining of alpha-amylase, lysozyme was recorded in different age groups.
Results:
The staining positivity rate of alpha-amylase, lysozyme had striking differences in 4 different age groups and it gradually decreased along with the age increasing.
Conclusions:
There are differences among seous acinus which had similar shape and staining in HE slice. The characters of aging changes of alpha-amylase, lysozyme secreted by acinar and intercalated duct cells are conformity with the results of quantitative studies in histology.
More Related Videos
08:37Protocol for Single-Cell Dissociation, RNA Sequencing, and Isolation of Myoepithelial Cells and Fibroblasts from the Aged Lacrimal and Salivary Glands
Published on: April 24, 2026
07:25Ultrasonographic Evaluation of Salivary Glands for Sjogren's Syndrome: Diagnostic and Monitoring Insights
Published on: October 13, 2023
Related Concept Videos
Salivary Glands and Saliva
Lipid Digestion
Exocrine Glands: Types of Secretions
Serous glands produce watery secretions rich in digestive enzymes and proteins. The constituent cells of the serous gland have centrally located nuclei and eosinophilic secretory granules in the cytoplasm. The parotid gland is an example of a serous gland. It secretes saliva, which contains enzymes, such as lipases and...
Accessory Organs
The Parathyroid Glands
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...