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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.2022.30(2).601</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-601</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 ПЕЧЕНИ В РАЗНЫЕ ФАЗЫ ИНВАЗИИ OPISTHORCHIS FELINEUS У КРОЛИКОВ ORYCTOLAGUS CUNICULUS</article-title><trans-title-group xml:lang="en"><trans-title>MORPHOLOGICAL CHARACTERISTICS OF THE LIVER IN DIFFERENT PHASES OF THE INVASION OPISTHORCHIS FELINEUS IN RABBITS ORYCTOLAGUS CUNICULUS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0384-0086</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сидельникова</surname><given-names>Алевтина Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Sidelnikova</surname><given-names>Аlevtina A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент кафедры морфологии и судебной медицины</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Associate Professor of the Department of Morphology and Forensic Medicine </p></bio><email xlink:type="simple">alieva-alevtina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кемеровский государственный медицинский университет, Кемерово</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kemerovo State Medical University, Kemerovo</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>04</month><year>2022</year></pub-date><volume>30</volume><issue>2</issue><fpage>34</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сидельникова А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сидельникова А.А.</copyright-holder><copyright-holder xml:lang="en">Sidelnikova А.A.</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/601">https://www.morpholetter.com/jour/article/view/601</self-uri><abstract><p>Морфологические изменения печени, как основного органа, в котором локализуется Opisthorchis felineus, по данным литературы характеризуются значительными структурными отличиями в острой и хронической фазах заболевания. Сравнительная характеристика морфологических изменений печени в разных фазах описторхоза в эксперименте у кроликов, таких как Oryctolagus cuniculus, не производилась. Для моделирования острой и хронической фазы инвазии животные были разделены на две группы наблюдения. Гистологический материал обработан стандартными методами, срезы ткани печени окрашивали гематоксилином и эозином, по Ван-Гизон для выявления структур соединительной ткани. Гистологические препараты исследованы методами светооптической микроскопии с иммерсией, видеомикроскопии с морфометрией. В результате исследования установлено, что в острую фазу описторхоза преобладает общая инфильтрация области портального тракта по сравнению с инфильтрацией стенки желчных протоков, в хроническую фазу толщина инфильтрата стенки желчных протоков приближается к значениям общей. Клеточный состав инфильтратов характеризуется наличием в обеих фазах лимфоцитов, фибробластов, эпителиодных клеток и клеток инородных тел, если в острой фазе инвазии преобладают макрофаги, то в хронической – фиброциты и тучные клетки. Гепатоциты в острой фазе имеют нарушения тинкториальных свойств кариолеммы и цитоплазмы, преимущественно за счет сегрегации зернистости. В хронической фазе описторхоза встречаются полиплоидные гепатоциты. Соединительная ткань области портального тракта в обеих фазах количественно преобладает по сравнению с соединительной тканью области пограничных пластинок. Максимальное количество соединительной ткани в области портального тракта в хронической фазе возрастает в 4,4 раза по сравнению с острой фазой паразитарного заболевания. Таким образом, морфологические изменения печени кроликов в разных фазах характеризуются как общностью, так и существенными отличиями, заключающимися в разном клеточном составе зоны инвазии, количестве образованной соединительной ткани в разных областях органа, изменениями гепатоцитов.</p></abstract><trans-abstract xml:lang="en"><p>Morphological changes in the liver, as the main organ in which Opisthorchis felineus is localized, according to the literature, are characterized by significant structural differences in the acute and chronic phases of the disease. Comparative characteristics of the morphological changes in the liver in different phases of opisthorchiasis in the experiment in rabbits, such as Oryctolagus cuniculus, was not carried out. To simulate the acute and chronic phases of invasion, the animals were divided into two observation groups. The histological material was processed by standard methods, liver tissue sections were stained with hematoxylin and eosin and according to Van Gieson to identify connective tissue structures. Histological preparations were studied by the methods of light-optical microscopy with immersion, video microscopy with morphometry. As a result of the study, it was found that in the acute phase of opisthorchiasis, the general infiltration of the portal tract area prevails compared to the infiltration of the bile duct wall, in the chronic phase, the thickness of the infiltrate of the bile duct wall approaches the total values. The cellular composition of infiltrates is characterized by the presence of lymphocytes, fibroblasts, epithelioid cells and cells of foreign bodies in both phases, if macrophages predominate in the acute phase of invasion, then fibrocytes and mast cells predominate in the chronic phase. Hepatocytes in the acute phase have disturbances in the tinctorial properties of the karyolemma and cytoplasm, mainly due to grain segregation. In the chronic phase of opisthorchiasis, polyploid hepatocytes are found. The connective tissue of the portal tract region in both phases quantitatively predominates in comparison with the connective tissue of the region of the boundary plates. The maximum amount of connective tissue in the area of ​​the portal tract in the chronic phase increases by 4.4 times compared with the acute phase of the parasitic disease. Thus, morphological changes in the liver of rabbits in different phases are characterized by both commonality and significant differences, consisting in different cellular composition of the invasion zone, the amount of connective tissue formed in different areas of the organ, and changes in hepatocytes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>печень</kwd><kwd>гепатоциты</kwd><kwd>Oryctolagus cuniculus</kwd><kwd>описторхоз</kwd><kwd>Opisthorchis felineus</kwd></kwd-group><kwd-group xml:lang="en"><kwd>liver</kwd><kwd>hepatocytes</kwd><kwd>Oryctolagus cuniculus</kwd><kwd>opisthorchiasis</kwd><kwd>Opisthorchis felineus</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">Yurlova NI, Yadrenkina EN, Rastyazhenko NM et al. Opisthorchiasis in Western Siberia: Epidemiology and distribution in human, fish, snail, and animal populations. Parasitol. Int. 2017;66(4):355-64. 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