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The Comparative Characteristic of Quantitative Parameters of Ciliated and Goblet Cells in Trachea and the Main Bronchi During Postnatal Development of Rats

https://doi.org/10.18499/2225-7357-2017-6-2-62-67

Abstract

The objective was a comparative study of regional features of morphometric and functional indices of ciliary and goblet epitheliocytes populations of in trachea and main bronchi of rats during the postnatal development. Materials and methods. Using complex technique of the cilia beat frequency in vivo study in combination with histological and morphometric methods the epithelium of trachea (cranial and caudal parts) and main bronchi from 70 Wistar rats from birth to old age (24 months) was investigated. Results. During the first month of life simultaneous increasing of ciliated cells frequency and cilia length was found in all regions. Growth of height of ciliated cell was significantly higher in trachea than in main bronchi. At the age of 3-12 months most functionally active ciliated cells are located in caudal parts of trachea: their quantity in epithelium and ciliary beat frequency were significantly higher compared with cranial part of trachea and main bronchi. Conclusions. The revealed regional structural features and functions of the ciliated epitheliocytes population reflect the uneven pace of histogenetic processes in the trachea and major bronchi during the period of the definitive structure of the epithelium formation, and in mature tissue - reactive changes in the mucociliary apparatus in response to regional peculiarities of aerodynamics in the airways.

About the Authors

A. V. Pavlov
Yaroslavl State Medical University, Yaroslavl, Russia
Russian Federation


L. I. Esev
Yaroslavl State Medical University, Yaroslavl, Russia
Russian Federation


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For citations:


Pavlov A.V., Esev L.I. The Comparative Characteristic of Quantitative Parameters of Ciliated and Goblet Cells in Trachea and the Main Bronchi During Postnatal Development of Rats. Journal of Anatomy and Histopathology. 2017;6(2):62-67. (In Russ.) https://doi.org/10.18499/2225-7357-2017-6-2-62-67

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ISSN 2225-7357 (Print)