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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">morpho</journal-id><journal-title-group><journal-title xml:lang="ru">Морфологические ведомости</journal-title><trans-title-group xml:lang="en"><trans-title>Morphological newsletter</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-3171</issn><issn pub-type="epub">2686-8741</issn><publisher><publisher-name>Private Medical University REAVIZ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/mv-mn.2025.33(2).945</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-945</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>МОРФОЛОГИЧЕСКАЯ ХАРАКТЕРИСТИКА ВОЛОСЯНЫХ ФОЛЛИКУЛОВ МЫШЕЙ ПРИ РАДИАЦИОННОМ ПОВРЕЖДЕНИИ</article-title><trans-title-group xml:lang="en"><trans-title>THE MORPHOLOGICAL CHARACTERISTICS OF MOUSE HAIR FOLLICLES DURING RADIATION DAMAGE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5540-4684</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбулич</surname><given-names>Алена Валентиновна</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbulich</surname><given-names>Alena V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>преподаватель кафедры гистологии с курсом эмбриологии</p></bio><bio xml:lang="en"><p>Lecturer at the Histology with a course in Embryology Department </p></bio><email xlink:type="simple">alenagor_vma@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3380-9223</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миргородская</surname><given-names>Ольга Евгеньевна</given-names></name><name name-style="western" xml:lang="en"><surname>Mirgorodskaya</surname><given-names>Ol'ga E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, доцент кафедры гистологии с курсом эмбриологии</p></bio><bio xml:lang="en"><p>Candidate of Biological Sciences, Associate Professor of the Histology with a course in Embryology Department</p></bio><email xlink:type="simple">mirgolga@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4011-1699</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Околитенко</surname><given-names>Матвей Сергеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Okolitenko</surname><given-names>Matvey S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>курсант</p></bio><bio xml:lang="en"><p>Cadet</p></bio><email xlink:type="simple">matveyoko@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-5653-0526</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захарова</surname><given-names>Маргарита Константиновна</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharova</surname><given-names>Margarita K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка</p></bio><bio xml:lang="en"><p>Studentin</p></bio><email xlink:type="simple">ritoritta@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Военно-медицинская академия имени С.М. Кирова, Санкт-Петербург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kirov Military Medical Academy, Saint-Petersburg</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>23</day><month>06</month><year>2025</year></pub-date><volume>33</volume><issue>2</issue><elocation-id>id-945 Cтатья опубликована / The Article is published</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Горбулич А.В., Миргородская О.Е., Околитенко М.С., Захарова М.К., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Горбулич А.В., Миргородская О.Е., Околитенко М.С., Захарова М.К.</copyright-holder><copyright-holder xml:lang="en">Gorbulich A.V., Mirgorodskaya O.E., Okolitenko M.S., Zakharova M.K.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.morpholetter.com/jour/article/view/945">https://www.morpholetter.com/jour/article/view/945</self-uri><abstract><p>Эпидермис и его производные, включая волосяные фолликулы, как высоко радиочувствительные структуры, служат маркерами течения репаративного гистогенеза, что позволяет оценить степень повреждения тканей и их восстановительный потенциал. Цель работы – провести сравнительный морфологический анализ реактивных изменений волосяных фолликулов кожи мышей в различных экспериментальных моделях. Объект исследования – белые беспородные мыши-самцы в возрасте 12 недель и массой 25-30 г. Животные были разделены на две экспериментальные группы, соответствующие различным моделям облучения. Мыши первой группы (n=20) были однократно облучены в поглощенной дозе 14 Грей. На животных второй группы (n=20) воздействовали многократно рентгеновским облучением по 1 Грею в течение 30 дней с последующим периодом 20 суток без облучения (18 Грей суммарно). Фрагменты кожи, взятые на 25-е и 50-е сутки, фиксировали в 10% забуференном нейтральном растворе формалина и обрабатывали по стандартному методу для световой микроскопии. Для подсчета количества волосяных фолликулов на единицу площади был адаптирован метод определения степени повреждения кожи с учетом фаз роста волос мышей. Визуально повреждения кожи всех экспериментальных животных характеризуются различной степенью гиперемии и выпадения волос. У животных первой экспериментальной модели выявляется значительная дезорганизация клеток эпидермиса и волосяных фолликулов. Количество волосяных фолликулов снижается на 33,1% по сравнению с исходным. Эпителиоциты наружного и внутреннего корневых влагалищ деформированы, клетки эпителиального матрикса волоса практически не визуализируются. Степень повреждения волосяных фолликулов составляет 100%. Морфологическая картина кожи у мышей второй экспериментальной группы характеризуется менее выраженными изменениями, форма кератиноцитов эпидермиса и волосяных фолликулов сохранена, снижена степень выраженности внутридифферонной гетероморфии клеток. Количество фолликулов снижается на 24,3% по сравнению с исходными показателями, а степень их повреждения составляет 37,8%. Проведенное исследование подтверждает первичное поражение наиболее радиочувствительных тканевых элементов кожи с дальнейшим развитием комплексного ее повреждения. Изучение изменений волосяных фолликулов показало наглядность и доступность оценки степени выраженности реактивных изменений эпителиальных структур кожи.</p></abstract><trans-abstract xml:lang="en"><p>The epidermis and its derivatives, including hair follicles, as highly radiosensitive structures, serve as markers of the course of reparative histogenesis, which allows assessing the degree of tissue damage and their regenerative potential. The aim of the work was to conduct a comparative morphological analysis of reactive changes in the hair follicles of mouse skin in various experimental models. The object of the study was white outbred male mice aged 12 weeks and weighing 25-30 g. The animals were divided into two experimental groups corresponding to different irradiation models. Mice of the first group (n=20) were irradiated once with an absorbed dose of 14 Gray. Animals of the second group (n=20) were repeatedly exposed to X-ray irradiation of 1 Gray for 30 days, followed by a 20-day period without irradiation (18 Gray in total). Skin fragments taken on the 25th and 50th days were fixed in 10% buffered neutral formalin solution and processed according to the standard method for light microscopy. To count the number of hair follicles per unit area, the method for determining the degree of skin damage was adapted taking into account the phases of mouse hair growth. Visually, skin damage in all experimental animals is characterized by varying degrees of hyperemia and hair loss. In the animals of the first experimental model, significant disorganization of epidermal cells and hair follicles is detected. The number of hair follicles decreases by 33.1% compared to the initial value. Epithelial cells of the outer and inner root sheaths are deformed, the cells of the epithelial matrix of the hair are almost not visualized. The degree of damage to hair follicles is 100%. The morphological picture of the skin in mice of the second experimental group is characterized by less pronounced changes, the shape of the keratinocytes of the epidermis and hair follicles is preserved, the degree of one type histogenesis cells heteromorphy expression is reduced. The number of follicles decreases by 24.3% compared to the initial values, and the degree of their damage is 37.8%. The conducted study confirms the primary lesion of the most radiosensitive tissue elements of the skin with the further development of its complex damage. The study of changes in hair follicles showed the clarity and accessibility of assessing the degree of expression of reactive changes in the epithelial structures of the skin.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кожа</kwd><kwd>мыши</kwd><kwd>волосы</kwd><kwd>волосяной фолликул</kwd><kwd>рентгеновское облучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>skin</kwd><kwd>mice</kwd><kwd>hair</kwd><kwd>hair follicle</kwd><kwd>x-ray irradiation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Danilov RK. Ranevoy protsess: gistogeneticheskie osnovy. Sankt-Peterburg: VMedA im. S.M. Kirova; 2008.– 219s. In Russian</mixed-citation><mixed-citation xml:lang="en">Danilov RK. Ranevoy protsess: gistogeneticheskie osnovy. Sankt-Peterburg: VMedA im. S.M. Kirova; 2008.– 219s. 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