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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(1).931</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-931</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT ARTICLES</subject></subj-group></article-categories><title-group><article-title>ДАННЫЕ ФАКТОРНОГО АНАЛИЗА О СТРУКТУРЕ ЩИТОВИДНОЙ ЖЕЛЕЗЫ CANIS FAMILIARIS ПРИ РАЗЛИЧНЫХ ПАРАМЕТРАХ ОКРУЖАЮЩЕЙ СРЕДЫ</article-title><trans-title-group xml:lang="en"><trans-title>THE FACTOR ANALYSIS DATA ABOUT THE STRUCTURE OF CANIS FAMILIARIS THYROID GLAND UNDER DIFFERENT SEASONAL ENVIRONMENTAL PARAMETERS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2865-1473</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Безденежных</surname><given-names>Андрей Вячеславович</given-names></name><name name-style="western" xml:lang="en"><surname>Bezdenezhnykh</surname><given-names>Andrey V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент, доцент кафедры нормальной анатомии</p></bio><bio xml:lang="en"><p>Docent, Candidate of Medical Sciences, Associate Professor of the  Normal Anatomy Department</p></bio><email xlink:type="simple">anatom33pimu@pimunn.net</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончаров</surname><given-names>Виталий Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharov</surname><given-names>Vitaliy V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат химических наук, доцент, доцент кафедры информационных технологий</p></bio><bio xml:lang="en"><p>Docent, Candidate of Chemical Sciences, Associate Professor of the Informational Technologies Department</p></bio><email xlink:type="simple">goncharov_vv@pimunn.net</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Приволжский исследовательский медицинский университет, Нижний Новгород</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Privolzhsky Research Medical University, Nizhny Novgorod</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>03</month><year>2025</year></pub-date><volume>33</volume><issue>1</issue><elocation-id>id-931 Cтатья опубликована / The Article is published</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Безденежных А.В., Гончаров В.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Безденежных А.В., Гончаров В.В.</copyright-holder><copyright-holder xml:lang="en">Bezdenezhnykh A.V., Goncharov V.V.</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/931">https://www.morpholetter.com/jour/article/view/931</self-uri><abstract><p>Использование факторного анализа при построении математических моделей позволяет выявить скрытые взаимосвязи изучаемых переменных. Структурная организация щитовидной железы характеризуется гистотопографическими особенностями взаимоотношений функционального (фолликулы) и регуляторного (С-тироциты, тучные клетки) звеньев отдельных зон органа и их динамической пластичностью у животных под воздействием сезонных, гелиомагнитных и геомагнитных влияний. Цель исследования - оценить гистотопографическую организацию структурных элементов щитовидной железы собак (Canis Familiaris) под воздействием различных условий годовых сезонов окружающей среды. Объект исследования послужили оцифрованные поперечные срезы центральной части правой доли щитовидной железы домашних собак-самцов (n=16). Для исследования влияния метеорологических факторов на структуру железы получение материала осуществляли в зимний и летний сезоны года по 8 животных на каждый. Гистологическому анализу подвергались срезы, окрашенные различными методами (гематоксилином и эозином, азуром-II-эозином), включая иммуногистохимические (С-тироциты, фибронектин, PCNA - proliferating cell nuclear antigen, тиреоглобулин, фактор фон Виллебранда). В программе ImageJ после предварительной геометрической и фотометрической калибровки измеряли площадь и оптическую плотность клеточных и тканевых структур щитовидной железы, в том числе, относительно центра во всех ее зонах. Исследовалось 67 переменных, объединенных в группы экзогенных, эндогенных организменных и эндогенных органных признаков. Было выделено 10 факторов, оказывающих влияние на 77% общей дисперсии анализируемых параметров. Состав факторов представлен следующим образом: фактор 1 включает количественные показатели С-тироцитов (16,7% общей дисперсии). Фактор 2 представлен количественными и функциональными показателями тучных клеток (13,7% дисперсии). Фактор 3 характеризует состояние функционального звена органа – фолликулов (12,9% дисперсии); четвертым фактором является степень насыщенности гранулами С-тироцитов (7,69% дисперсии). Наконец, сезонные влияния окружающей среды (продолжительность светового дня, среднесуточная температура вместе с индексом пролиферативной активности клеток формируют пятый фактор (5,85% дисперсии признаков).</p></abstract><trans-abstract xml:lang="en"><p>The use of factor analysis in constructing mathematical models allows us to identify hidden relationships between the variables under study. The structural organization of the thyroid gland is characterized by histological and topographic features of the relationship between the functional (follicles) and regulatory (C-thyrocytes, mast cells) links of the different zones of the organ and their dynamic plasticity in animals under the influence of exogenous seasonal, heliomagnetic and geomagnetic influences. The aim of the study was to evaluate the histological and topographic organization of the structural elements of the thyroid gland of dogs (Canis familiaris) under the influence of various conditions of the annual environmental seasons. The object of the study was digitized transverse histological sections of the central part of the right lobe of the thyroid gland of domestic male dogs (n = 16). To study the influence of meteorological factors on the structure of the gland, the material was obtained in the winter and summer seasons of the year, 8 animals each. Histological analysis was performed on sections stained by various methods (hematoxylin and eosin, azure II-eosin), including immunohistochemical (C-thyrocytes, fibronectin, PCNA - proliferating cell nuclear antigen, thyroglobulin, von Willebrand factor). In the ImageJ program, after preliminary geometric and photometric calibration, the area and optical density of cellular and tissue structures of the thyroid gland were measured, including relative to the center in all its zones. A total of 67 variables were studied, combined into groups of exogenous, endogenous organismic and endogenous organ characteristics. 10 factors were identified that influenced 77% of the total variance of the analyzed parameters. The composition of the factors is presented as follows: factor 1 includes quantitative indicators of C-thyrocytes (16.7% of the total variance). Factor 2 is represented by quantitative and functional indicators of mast cells (13.7% of the variance). Factor 3 characterizes the state of the functional link of the organ - follicles (12.9% of the variance); the fourth factor is the degree of saturation of C-thyrocytes with granules (7.69% of the variance). Finally, seasonal environmental influences (daylight hours, average daily temperature together with the index of proliferative activity of cells form the fifth factor (5.85% of the variance of the signs).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>щитовидная железа</kwd><kwd>собака домашняя</kwd><kwd>гистология</kwd><kwd>морфометрия</kwd><kwd>окружающая среда</kwd><kwd>сезонные факторы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thyroid gland</kwd><kwd>dog</kwd><kwd>histology</kwd><kwd>morphometry</kwd><kwd>environment</kwd><kwd>seasonal influence</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">Abduvaliev A, Saydalieva M, Hidirova M et al. Mathematical Modeling of the Thyroid Regulatory Mechanisms. Am J Med Sci Med. 2015;3(3):28-32. https://doi.org/10.12691/ajmsm-3-3-1</mixed-citation><mixed-citation xml:lang="en">Abduvaliev A, Saydalieva M, Hidirova M et al. 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