Ultrastructural Changes in Aging Rat Tracheal Gland

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Title ( eng )
Ultrastructural Changes in Aging Rat Tracheal Gland
Creator
Kasuga Shigeo
Source Title
Hiroshima Journal of Medical Sciences
Volume 40
Issue 2
Start Page 63
End Page 70
Journal Identifire
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
Abstract
Ultrastructural differences in the tracheal gland between young and aged rats were studied. Marked differences were observed in the serous cells between the young (8-17 week-old) and the aged (20-30 month-old) subjects. The secretory granules of the serous cells of the young subjects were homogeneously electron dense, whilst those of the aged subjects had a bizonal appearance. These bizonal granules contained abundant mucous material. The trans Golgi network of the aged rat serous cells was more developed and formed a fine meshwork in comparison with that of the young subjects. In the aged subjects, findings indicate alterations not only in the function of the Golgi apparatus including formation of secretory granules and addition of terminal sugars to the secretory protein but also the histochemical and ultrastructural properties of the secretory material. The changes in the Golgi apparatus are possibly responsible for depression of the tracheal host defense mechanism and might explain why various airway diseases increase with aging.
Keywords
Aging
Tracheal gland
Golgi apparatus
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
Hiroshima University Medical Press
Date of Issued 1991-06
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0018-2052
[NCID] AA00664312
[PMID] 1917556