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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">anatomy</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал анатомии и гистопатологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Anatomy and Histopathology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-7357</issn><publisher><publisher-name>N.N. Burdenko Voronezh State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18499/2225-7357-2022-11-3-32-38</article-id><article-id custom-type="elpub" pub-id-type="custom">anatomy-1608</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>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Морфометрические показатели синусоидных капилляров, междольковых вен и междольковых артерий на разных стадиях экспериментального фиброза печени</article-title><trans-title-group xml:lang="en"><trans-title>Morphometric parameters of sinusoidal capillaries, interlobular veins and interlobular arteries at different stages of experimental liver fibrosis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1309-4248</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебедева Елена Ивановна – доцент кафедры гистологии, цитологии и эмбриологии</p><p>пр-т Фрунзе, 27, Витебск, 210009</p></bio><bio xml:lang="en"><p>Elena I. Lebedeva – Assoc. Prof. of department of histology, cytology and embryology</p><p>Prospekt Frunze, 27, Vitebsk, 210009</p></bio><email xlink:type="simple">lebedeva.ya-elenale2013@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Витебский государственный ордена Дружбы народов медицинский университет</institution></aff><aff xml:lang="en"><institution>Vitebsk State Order of Peoples’ Friendship Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>09</day><month>10</month><year>2022</year></pub-date><volume>11</volume><issue>3</issue><fpage>32</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лебедева Е.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Лебедева Е.И.</copyright-holder><copyright-holder xml:lang="en">Lebedeva E.I.</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://anatomy.elpub.ru/jour/article/view/1608">https://anatomy.elpub.ru/jour/article/view/1608</self-uri><abstract><p>Цель исследования – провести морфометрический анализ синусоидных капилляров, междольковых вен и междольковых артерий печени на разных стадиях экспериментального фиброза для изучения взаимосвязи фиброгенеза с ангиогенезом и выявления новых терапевтических мишеней.</p><sec><title>Материал и методы</title><p>Материал и методы. В эксперименте использовали крыс-самцов Wistar. Фиброз печени с трансформацией в цирроз индуцировали раствором тиоацетамида, который вводили в желудок с помощью зонда в дозе 200 мг/кг массы тела животного 2 раза в неделю. Крыс опытных групп выводили из эксперимента через 3, 5, 7, 9, 11, 13, 15 и 17 недель, а интактных – по окончании эксперимента. Для выявления соединительной ткани срезы печени окрашивали по методу Маллори. Иммуногистохимическое исследование осуществляли на парафиновых срезах с использованием моноклонального мышиного антитела к CD31. Количество синусоидных капилляров, междольковых артерий и междольковых вен подсчитывали в трех непересекающихся полях зрения каждого гистологического среза на базе микроскопа OLYMPUS BX51 при увеличении объектива 40×.</p></sec><sec><title>Результаты</title><p>Результаты. Результаты настоящего исследование установили статистически значимое уменьшение количества синусоидных капилляров (р=0,0000) и увеличение количества междольковых вен (р=0,0000) по сравнению с контрольной группой. Различий в количестве междольковых артерий не выявлено (р=0,9999). Выраженный ангиогенез в портальных зонах и соединительнотканных септах связан с увеличением соединительной ткани при фиброгенезе печени.</p></sec><sec><title>Заключение</title><p>Заключение. В будущем модуляция ангиогенеза должна быть дифференцированной и направленной на антифибротическую, противовоспалительную или аутоиммунную терапию при хронических заболеваниях печени.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to conduct a morphometric analysis of sinusoidal capillaries, interlobular veins and interlobular arteries of the liver at different stages of experimental fibrosis in order to investigate relationship between fibrogenesis and angiogenesis and identify new therapeutic targets.</p><sec><title>Material and methods</title><p>Material and methods. The study included male Wistar rats. Liver fibrosis with transformation into cirrhosis was induced with a solution of thioacetamide, which was injected into the stomach, dosage 200 mg/kg of animal body weight, using a probe 2 times a week. The rats of the experimental groups were withdrawn from the experiment in 3, 5, 7, 9, 11, 13, 15, and 17 weeks, and the intact ones - at the end of the experiment. To identify connective tissue, liver sections were stained according to the Mallory method. Immunohistochemical examination was performed on paraffin sections using a monoclonal mouse antibody to CD31. The number of sinusoidal capillaries, interlobular arteries, and interlobular veins was counted in three non-overlapping fields of view of each histological section using an OLYMPUS BX51 microscope at a 40× objective magnification.</p></sec><sec><title>Results</title><p>Results. The results obtained supported a statistically significant decreased number of sinusoidal capillaries (p=0,0000) and an increased number of interlobular veins (p=0,0000) in animals of the experimental group compared with the control group. There were no differences in the number of interlobular arteries (p=0,9999). Pronounced angiogenesis in the portal zones and connective tissue septa was associated with an increased amount of the connective tissue during liver fibrogenesis.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the future, angiogenesis modulation should be differentiated and directed towards antifibrotic, anti-inflammatory or autoimmune therapy in chronic liver diseases.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>крысы Wistar</kwd><kwd>фиброгенез</kwd><kwd>печень</kwd><kwd>синусоидные капилляры</kwd><kwd>междольковые вены</kwd><kwd>междольковые артерии</kwd><kwd>морфометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Wistar rats</kwd><kwd>liver fibrogenesis</kwd><kwd>sinusoidal capillaries</kwd><kwd>interlobular veins</kwd><kwd>interlobular arteries</kwd><kwd>morphometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственной программы научных исследований «Фундаментальные и прикладные науки – медицине» Министерства здравоохранения Республики Беларусь (рег. № 20190107).</funding-statement><funding-statement xml:lang="en">The work is carried out within the framework of the state research program "Fundamental and applied sciences - medicine" of the Ministry of Health of the Republic of Belarus (reg. 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