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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Morphology</journal-id><journal-title-group><journal-title xml:lang="en">Morphology</journal-title><trans-title-group xml:lang="ru"><trans-title>Морфология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3543</issn><issn publication-format="electronic">2949-2556</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">398845</article-id><article-id pub-id-type="doi">10.17816/morph.398845</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">EXTRUSION OF THE TRACHEAL EPITHELIAL CELLS (IN VIVO STUDY)</article-title><trans-title-group xml:lang="ru"><trans-title>ЭКСТРУЗИЯ КЛЕТОК ЭПИТЕЛИЯ ТРАХЕИ (ПРИЖИЗНЕННОЕ ИССЛЕДОВАНИЕ)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yesev</surname><given-names>L. I.</given-names></name><name xml:lang="ru"><surname>Есев</surname><given-names>Леонид Иванович</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра гистологии, цитологии и эмбриологии</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pavlov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Павлов</surname><given-names>Алексей Владимирович</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра гистологии, цитологии и эмбриологии</p></bio><email>pavlov@yma.ac.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Yaroslavl’ State Medical Academy</institution></aff><aff><institution xml:lang="ru">Ярославская государственная медицинская академия</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2014-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2014</year></pub-date><volume>146</volume><issue>6</issue><issue-title xml:lang="en">VOL 146, NO6 (2014)</issue-title><issue-title xml:lang="ru">ТОМ 146, №6 (2014)</issue-title><fpage>87</fpage><lpage>90</lpage><history><date date-type="received" iso-8601-date="2023-05-09"><day>09</day><month>05</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2014, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2014, Эко-Вектор</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://j-morphology.com/1026-3543/article/view/398845">https://j-morphology.com/1026-3543/article/view/398845</self-uri><abstract xml:lang="en"><p>Using a complex technique of intravital microscopic study, the epithelial lining of the trachea of 35 albino male Wistar rats aged 3 ,6, 12, 18 and 24 months was examined in combination with its histological study. During the analysis of video files of the ciliary apparatus motor activity, a phenomenon of epithelial cell extrusion from the cell layer was registered and the main phases of this process were described (the appearance of the apical part of the cell being eliminated above the epithelial surface, the release of its nucleated part, the final release of the cell from the layer). It was found that not only the dying cells were extruded, but also the viable elements, preserving the ciliary activity and unchanged morphological structure of nuclei (up to 25% of the total number of eliminated cells). The study of the histological sections demonstrated the ciliated cells at the respective stages of the extrusion process. The total proportion of the epithelial cells being eliminated was 0.4-0.6‰ in young animals (3- 6 months old), while in adult and aging rats (12-24 months old) it was equal to 0.9-1.1‰.</p></abstract><trans-abstract xml:lang="ru"><p>С помощью комплексной методики прижизненного микроскопического исследования изучена эпителиальная выстилка трахеи 35 белых крыс-самцов линии Вистар в возрасте 3, 6, 12, 18 и 24 мес в сочетании с ее гистологическим исследованием. В ходе анализа видеофайлов двигательной активности цилиарного аппарата был зарегистрирован феномен экструзии эпителиоцитов из пласта и выделены основные фазы процесса (появление апикальной части элиминируемой клетки над поверхностью эпителия, выход ее ядросодержащей части, окончательное выделение клетки из пласта). Экструзии подвергаются не только гибнущие клетки, но и жизнеспособные элементы, сохраняющие двигательную активность ресничек и неизмененную морфологическую структуру ядер (до 25% от общего числа элиминированных клеток). При изучении гистологических препаратов обнаружены реснитчатые клетки на соответствующих этапах экструзии. Суммарная доля элиминируемых эпителиоцитов у молодых (3-6 мес) животных составляет 0,4-0,6‰, у взрослых и старых (12-24 мес) - 0,9-1,1‰.</p></trans-abstract><kwd-group xml:lang="en"><kwd>trachea</kwd><kwd>ciliated epithelium</kwd><kwd>cell extrusion</kwd><kwd>in vivo study</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>трахея</kwd><kwd>реснитчатый эпителий</kwd><kwd>экструзия клеток</kwd><kwd>прижизненное исследование</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Павлов А. В. и Есев Л. И. Методические подходы к комплексному изучению функциональной морфологии эпителиальной выстилки трахеи в эксперименте. Морфология, 2012, т. 142, вып. 6, с. 73-76.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Павлов А. В. и Есев Л. И. 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