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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">112247</article-id><article-id pub-id-type="doi">10.17816/morph.112247</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Histological features of the structure of the portal vein of the liver and splenic vein in portal hypertension</article-title><trans-title-group xml:lang="ru"><trans-title>Гистологические особенности строения воротной вены печени и селезёночной вены при портальной гипертензии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8405-6022</contrib-id><contrib-id contrib-id-type="spin">3113-6982</contrib-id><name-alternatives><name xml:lang="en"><surname>Minaev</surname><given-names>Sergey V.</given-names></name><name xml:lang="ru"><surname>Минаев</surname><given-names>Сергей Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>sminaev@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3632-7406</contrib-id><contrib-id contrib-id-type="spin">1664-2670</contrib-id><name-alternatives><name xml:lang="en"><surname>Getman</surname><given-names>Natalia V.</given-names></name><name xml:lang="ru"><surname>Гетман</surname><given-names>Наталья Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>ng66@rambler.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5020-232X</contrib-id><contrib-id contrib-id-type="spin">1762-8310</contrib-id><name-alternatives><name xml:lang="en"><surname>Grigorova</surname><given-names>Alina N.</given-names></name><name xml:lang="ru"><surname>Григорова</surname><given-names>Алина Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>alina.mashchenko@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1273-0356</contrib-id><contrib-id contrib-id-type="spin">7385-3194</contrib-id><name-alternatives><name xml:lang="en"><surname>Dydykin</surname><given-names>Sergey S.</given-names></name><name xml:lang="ru"><surname>Дыдыкин</surname><given-names>Сергей Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>dydykin_s_s@staff.sechenov.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5460-8308</contrib-id><contrib-id contrib-id-type="spin">6687-5900</contrib-id><name-alternatives><name xml:lang="en"><surname>Sumkina</surname><given-names>Olga B.</given-names></name><name xml:lang="ru"><surname>Сумкина</surname><given-names>Ольга Борисовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>opsurg@stgmu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5808-0686</contrib-id><contrib-id contrib-id-type="spin">5457-1995</contrib-id><name-alternatives><name xml:lang="en"><surname>Timofeev</surname><given-names>Sergey I.</given-names></name><name xml:lang="ru"><surname>Тимофееев</surname><given-names>Сергей Иванович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>timofeev_si@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Stavropol State Medical University</institution></aff><aff><institution xml:lang="ru">Ставропольский государственный медицинский университет</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Stavropol State Medical University</institution></aff><aff><institution xml:lang="ru">Ставропольский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Sechenov First Moscow State Medical Univesity (Sechenov University)</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет имени И.М. Сеченова (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Far-Eastern State Medical University</institution></aff><aff><institution xml:lang="ru">Дальневосточный государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2022-12-17" publication-format="electronic"><day>17</day><month>12</month><year>2022</year></pub-date><pub-date date-type="pub" iso-8601-date="2022-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2022</year></pub-date><volume>160</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>37</fpage><lpage>44</lpage><history><date date-type="received" iso-8601-date="2022-11-02"><day>02</day><month>11</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-11-23"><day>23</day><month>11</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Эко-Вектор</copyright-statement><copyright-year>2022</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/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://j-morphology.com/1026-3543/article/view/112247">https://j-morphology.com/1026-3543/article/view/112247</self-uri><abstract xml:lang="en"><p><bold><italic>BACKGROUND:</italic></bold> Studies on the morphological and hemodynamic changes in the structure of the portal vein of the liver and the splenic vein in various pathologies, one of which is portal hypertension, remains relevant.</p> <p><bold><italic>AIM: </italic></bold>To perform a histological study on the structure and thickness of the membranes of the portal vein of the liver and splenic vein in people of different age groups with normal conditions and with portal hypertension.</p> <p><bold><italic>MATERIALS AND METHODS:</italic></bold> Sectional material for the study of the portal vein of the liver and splenic vein was obtained from 89 people aged 7–30 years old who died from injuries incompatible with life. A total of 57 cases had a history of portal hypertension during life, and the remaining 32 cases were considered as controls. The cellular and tissue components of the vein walls were studied in paraffin sections stained with hematoxylin–eosin and Van Gieson’s stain (picric acid and fuchsin) using Weigert’s hematoxylin.</p> <p><bold><italic>RESULTS:</italic></bold> The thicknesses of the inner and middle membranes of venous vessels significantly increased in all age groups with portal hypertension relative to those in the control. The pathological features of changes in the thickness and microstructure of the components of the portal vein wall of the liver and splenic vein in topographically different parts of the veins were observed.</p> <p><bold><italic>CONCLUSION:</italic></bold> The histological and morphometric examination of the wall of the portal vein of the liver and the splenic vein in normal cases and cases of portal hypertension syndrome in different age periods revealed not only the structural features of the portal vein of the liver and splenic vein, but also the features of age-related pathomorphological changes in the individual parts of the veins and in each of the membranes. Such features are of considerable interest for clinical medicine.</p></abstract><trans-abstract xml:lang="ru"><p><bold><italic>Обоснование</italic></bold><bold>.</bold> В настоящее время актуальны исследования морфологических и гемодинамических изменений в структуре воротной вены печени и селезёночной вены при различных патологиях, одной из которых является портальная гипертензия.</p> <p><bold><italic>Цель</italic></bold> — гистологическое исследование строения и толщины оболочек воротной вены печени и селезёночной вены у разных возрастных групп в норме и при портальной гипертензии.</p> <p><bold><italic>Материалы и методы.</italic></bold> Секционный материал для исследования получен от 89 человек в возрасте от 7 до 30 лет, погибших от травм, несовместимых с жизнью. В 57 случаях при жизни пациентов в анамнезе отмечена портальная гипертензия, остальные 32 рассматривались в качестве контроля. Клеточные и тканевые компоненты стенок вен изучали на парафиновых срезах, окрашенных гематоксилином–эозином, а также по Ван Гизону (пикриновая кислота и фуксин) с использованием гематоксилина Вейгерта.</p> <p><bold><italic>Результаты</italic></bold><bold>.</bold> Установлено, что при портальной гипертензии по сравнению с контролем значимо увеличивалась толщина внутренней и средней оболочек венозных сосудов во всех возрастных группах. Показаны патоморфологические особенности изменений толщины и микроструктуры компонентов стенки воротной вены печени и селезёночной вены в топографически отличающихся участках вен.</p> <p><bold><italic>Заключение. </italic></bold>Гистологическое и морфометрическое исследование стенки воротной вены печени и селезёночной вены в норме и при синдроме портальной гипертензии, а также в различных возрастных категориях выявило не только особенности строения этих вен, но и особенности возрастных патоморфологических изменений в различных их отделах и в каждой из оболочек, что представляет значительный интерес для клинической медицины.</p></trans-abstract><kwd-group xml:lang="en"><kwd>portal vein of the liver</kwd><kwd>splenic vein</kwd><kwd>portal hypertension</kwd><kwd>age-related pathological changes</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>воротная вена печени</kwd><kwd>селезёночная вена</kwd><kwd>портальная гипертензия</kwd><kwd>возрастные патоморфологические изменения</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Garbuzenko DV. 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