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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">Genes &amp; Cells</journal-id><journal-title-group><journal-title xml:lang="en">Genes &amp; Cells</journal-title><trans-title-group xml:lang="ru"><trans-title>Гены и Клетки</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Genes and Cells</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-1829</issn><issn publication-format="electronic">2500-2562</issn><publisher><publisher-name xml:lang="en">Human Stem Cells Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">120596</article-id><article-id pub-id-type="doi">10.23868/gc120596</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">Changes of liver microstructure after partial hepatectomy in rats</article-title><trans-title-group xml:lang="ru"><trans-title>Изменения микроструктуры печени после частичной гепатэктомии у крыс</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gazizov</surname><given-names>I. M</given-names></name><name xml:lang="ru"><surname>Газизов</surname><given-names>И. М</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kaligin</surname><given-names>M. S</given-names></name><name xml:lang="ru"><surname>Калигин</surname><given-names>М. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Andreeva</surname><given-names>D. I</given-names></name><name xml:lang="ru"><surname>Андреева</surname><given-names>Д. И</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yilmaz</surname><given-names>T. S</given-names></name><name xml:lang="ru"><surname>Йылмаз</surname><given-names>Т. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gumerova</surname><given-names>A. A</given-names></name><name xml:lang="ru"><surname>Гумерова</surname><given-names>А. А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kiassov</surname><given-names>A. P</given-names></name><name xml:lang="ru"><surname>Киясов</surname><given-names>А. П</given-names></name></name-alternatives><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan State Medical University</institution></aff><aff><institution xml:lang="ru">Казанский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kazan Federal University</institution></aff><aff><institution xml:lang="ru">Казанский (Приволжский) федеральный университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Kazan State Medical University</institution></aff><aff><institution xml:lang="ru">Казанский (Приволжский) федеральный университет</institution></aff></aff-alternatives><aff id="aff4"><institution>Kazan Federal University</institution></aff><pub-date date-type="pub" iso-8601-date="2013-10-15" publication-format="electronic"><day>15</day><month>10</month><year>2013</year></pub-date><volume>8</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>101</fpage><lpage>105</lpage><history><date date-type="received" iso-8601-date="2023-01-05"><day>05</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Эко-Вектор</copyright-statement><copyright-year>2013</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/"/></permissions><self-uri xlink:href="https://genescells.ru/2313-1829/article/view/120596">https://genescells.ru/2313-1829/article/view/120596</self-uri><abstract xml:lang="en"><p>Ability of mammalian liver to regenerate is one of the favorite examples of “regenerative medicine”. At the same time liver regeneration can not be viewed as a simple hypertrophy, it must have some appropriate steps. Understanding of these processes is crucial for correct interpretation of liver therapy results, especially after cellular therapy. But, unfortunately, original and first-hand data regarding changes in liver microstructure during regeneration is relatively scarce. This work was dedicated to study changes of liver microstructure during liver regeneration after partial hepatectomy in rats. We analyzed proliferative processes, perisinusoidal cells involvement, sizes of classical hepatic lobules, participation of bile ducts, branches of afferent and efferent hepatic vessels in liver regeneration on 1, 2, 3, 5, 7 postoperative days. Our results have shown that liver microstructure during regeneration after partial hepatectomy undergoes two stages: hypertrophy of hepatic lobules by proliferation of liver cells until 4th day and division of hepatic lobules by branching of bile ducts, hepatic artery, portal and central veins from 4th until 7th postoperative day.</p></abstract><trans-abstract xml:lang="ru"><p>Высокая способность печени млекопитающих к регенерации является одним из излюбленных примеров «регенеративной медицины». При этом репарация печени не может рассматриваться как обычный процесс гипертрофии органа, а должен иметь определенные закономерные этапы. Знание этих этапов необходимо для правильной интерпретации данных в ходе терапии пациентов с патологией печени, в том числе при клеточной терапии. Однако исследования изменений микроструктуры печени в ходе репаративной регенерации крайне малочисленны. Данная работа проведена с целью оценки этих изменений в ходе репаративного процесса после частичной гепатэктомии у крыс. В ходе эксперимента через 1, 2, 3, 5, 7 сут. после операции оценивали размеры печеночных долек, измеряя межпортальные расстояния, анализировали пролиферацию клеток, участие в регенерации перисинусоидальных клеток, желчных протоков, афферентных и эфферентных сосудов печени, исследуя экспрессию специфических маркеров различных клеточных типов методами иммуногистохимии. Результаты исследования показали, после частичной гепатэктомии изменение микроструктуры печени осуществляется в два этапа: 1) гиперплазия печеночных долек путем пролиферации клеток печени до четвертых суток и 2) деление печеночных долек за счет ветвления желчных протоков, ветвей печеночной артерии, воротной вены и центральных вен с четвертых до седьмых суток.</p></trans-abstract><kwd-group xml:lang="en"><kwd>liver microstructure</kwd><kwd>regeneration</kwd><kwd>liver lobule</kwd><kwd>partial hepatectomy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>микроструктура печени</kwd><kwd>регенерация</kwd><kwd>печеночная долька</kwd><kwd>частичная гепатэктомия</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kiernan F. The anatomy and physiology of the liver. Philos. Trans. R. Soc. Lond. (Biol). 1833; 123: 711-70.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Mall F.P. 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