Effect of Hyperglycemia on the Excretory Ducts of the Submandibular Gland (Histologic Study)

Hanna Ersteniuk, Taras Kotyk, Nilanjan Dey, Omelian Yurakh, Oksana Popadynets

Abstract


The paper highlights the peculiarities of histological changes in different subdivisions of the intralobular duct of the submandibular gland in rats in case of experimental hyperglycemia.

Materials and methods. The study included 40 male Wistar rats weighing 230 to 250g. Experimental hyperglycemia was induced by a single intraperitoneal administration of streptozotocin. Biochemical and morphological investigations were conducted; the morphometric analysis was carried out.

Results. Since the 28th day of the experiment, on the background of dynamic increase in the levels of glucose and glycated hemoglobin in the blood, there was observed the development of dystrophic changes in epithelial cells of the granular and striated ducts being accompanied by a gradual decrease in epithelial cell height by 10.28 – 29.46% and 10.77 – 28.28%, respectively. Morphological changes in the intercalated ducts were detected later – since the 42nd day of the experiment and the decrease in their epithelial cell height – by 15.60%, was seen on the 70th day only.

Conclusions. Morphological changes in different subdivisions of the intralobular duct are of dystrophic nature and can be histologically detected since the 28th day of the experiment; they depend on the duration of hyperglycemia and are accompanied by a dynamic decrease in epithelial cell height.


Keywords


hyperglycemia; submandibular gland; excretory ducts

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DOI: http://dx.doi.org/10.21802/gmj.2016.4.9

Copyright (c) 2017 Hanna Ersteniuk, Taras Kotyk, Nilanjan Dey, Omelian Yurakh, Oksana Popadynets

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