Ultrastructural changes in ageing lacrimal gland in Wistar rats

VB, V.; Vangeli, I.; Bakeeva, L.

Авторы: Vais VB, Vangeli IM, Bakeeva LE
Журнал: Bulletin of Experimental Biology and Medicine
Том: 157
Номер: 2
Год издания: 2014
Издательство: Springer Nature
Местоположение издательства: Switzerland
Первая страница: 268
Последняя страница: 272
DOI: 10.1007/s10517-014-2541-9
Аннотация: We studied age-related ultrastructural reorganization in acinar cells and intercalary ducts of the lacrimal gland acini in 3-, 15-, and 24-month-old Wistar rats. Ultrastructural changes in the lacrimal gland progressed with age and led to dramatic ultrastructural reconstruction of the lacrimal gland at the age of 24 months. These changes mainly included complete destruction of acinar cells and increase in the number of enlarged branched ducts that filled the greater part of gland volume; these dusts were lined with epithelial cells with altered ultrastructure. Acinar cells in the acini communicate via special connecting intermembrane complexes formed by desmosomes and mitochondria adjacent to them in each contacting cell. It is assumed that association of mitochondria with desmosomes found in the acini is a special functional complex indicating that every single acinus is a functional formation. This assumption is indirectly confirmed by the fact that the destruction never occurred in a single cell, but always involved all cells constituting the acini. The revealed ultrastructural changes reflect age-related deterioration of the secretory function of the lacrimal gland.
Добавил в систему: Вайс Валерия Борисовна

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Ultrastructural changes in ageing lacrimal gland in Wistar ratsстатья

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