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Journal of Anatomy and Histopathology

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Morphological Changes in Thyroid and Parathyroid Glands During the Reparative Osteogenesis

https://doi.org/10.18499/2225-7357-2018-7-2-90-94

Abstract

The aim of the research is to study the dynamics of structural and functional changes in the thyroid and parathyroid glands during reparative osteogenesis. Material and methods. The study was performed on 40 adult males rat of the Wistar line, weighing 180.0±10.0 g. A model of an open fracture of the tibial diaphysis was used in the experimental group. The control group was intact. Structural changes in bone callus, thyroid and parathyroid glands were studied using immunohistochemistry methods, light microscopy, morphometry and statistics. Results. The proliferative and functional activity of the major endocrinocytes of the parathyroid glands is increased in the initial periods of reparative osteogenesis, resulting in an increasing of osteoclastic activity with resorption of bone fragments in the fracture zone. From 21th day of osteogenesis the functional activity of the parathyroid glands is reduced, the activity of the C-cells of the thyroid gland is activated; then the functional activity of C-cells is decreased. Conclusion. The observed changes in the synthetic and proliferative activity of C-cells and parathyrocytes have a certain time interval, which correlates with the histogenesis of bone tissue in the fracture zone.

About the Authors

E. I. Shurygina
Orenburg State Medical University, Orenburg, Russia
Russian Federation


V. S. Polyakova
Orenburg State Medical University, Orenburg, Russia
Russian Federation


V. A. Mikhanov
Orenburg State Medical University, Orenburg, Russia
Russian Federation


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Review

For citations:


Shurygina E.I., Polyakova V.S., Mikhanov V.A. Morphological Changes in Thyroid and Parathyroid Glands During the Reparative Osteogenesis. Journal of Anatomy and Histopathology. 2018;7(2):90-94. (In Russ.) https://doi.org/10.18499/2225-7357-2018-7-2-90-94

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ISSN 2225-7357 (Print)