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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ20.43-o</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-2510</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>ФИЗИОЛОГИЧЕСКАЯ ГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSIOLOGICAL GENETICS</subject></subj-group></article-categories><title-group><article-title>Апоптоз в печени самцов мышей db/db при развитии ожирения и сахарного диабета 2-го типа</article-title><trans-title-group xml:lang="en"><trans-title>Apoptosis in the liver of male db/db mice during the development of obesity and type 2 diabetes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мичурина</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Michurina</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ищенко</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Ishchenko</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><email xlink:type="simple">irenisch@mail.ru</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>Архипов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Arkhipov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черепанова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherepanova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васендин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasendin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9412-3874</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Завьялов</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavjalov</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский институт клинической и экспериментальной лимфологии – филиал Федерального исследовательского центра Институт цитологии и генетики Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Сибирский государственный университет геосистем и технологий<country>Россия</country></aff><aff xml:lang="en">Siberian State University of Geosystems and Technologies<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>27</day><month>03</month><year>2020</year></pub-date><volume>24</volume><issue>4</issue><fpage>435</fpage><lpage>440</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мичурина С.В., Ищенко И.Ю., Архипов С.А., Черепанова М.А., Васендин Д.В., Завьялов Е.Л., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Мичурина С.В., Ищенко И.Ю., Архипов С.А., Черепанова М.А., Васендин Д.В., Завьялов Е.Л.</copyright-holder><copyright-holder xml:lang="en">Michurina S.V., Ishchenko I.Y., Arkhipov S.A., Cherepanova M.A., Vasendin D.V., Zavjalov E.L.</copyright-holder><license 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://vavilov.elpub.ru/jour/article/view/2510">https://vavilov.elpub.ru/jour/article/view/2510</self-uri><abstract><p>Известно, что ожирение и сахарный диабет приводят к развитию метаболического синдрома и неалкогольной жировой болезни печени. В поддержании клеточного гомеостаза при неалкогольной жировой болезни печени принимают активное участие механизмы запрограммированной клеточной гибели. Белки семейства BCL-2 являются ключевым регулятором физиологического и патологического апоптоза. Используемые в исследовании гомозиготные самцы мышей линии BKS.Cg-Dock7mLeprdb/+/+/J (мыши db/db) характеризуются прогрессирующим ожирением и развитием сахарного диабета 2-го типа (СД2), выраженной гипергликемией с 4–8-й недели жизни и развитием органных поражений после 8–10-й недели. Целью работы было изучить экспрессию молекулярно-клеточных регуляторов апоптоза в клетках печени самцов мышей db/db на разных сроках развития ожирения и сахарного диабета (в возрасте 10 и 18 нед). Проведены иммуногистохимический анализ (с помощью непрямого авидин-биотинового пероксидазного метода) и морфометрическая оценка экспрессии антиапоптотического белка Bcl-2 и проапоптотического протеина Bad в клетках печени исследуемых животных на разных сроках развития ожирения и СД2. В печени исследуемых самцов в возрасте 10 нед установлено превышение значения площади окрашивания на белок Bcl-2 над белком Bad. Индекс соотношения площадей экспрессии Bcl-2/Bad у 10-недельных животных оказался в два раза выше по сравнению с 18-недельными особями, что свидетельствует о наличии условий для блокирования процессов апоптоза в печени мышей db/db более раннего возраста. На 18-й неделе жизни у самцов мышей db/db обнаружено почти трехкратное увеличение площади экспрессии белка Bad на фоне неизменившейся экспрессии белка Bcl-2. Снижение значения соотношения площадей окрашивания Bcl-2/Bad у 18-недельных животных произошло за счет роста площади экспрессии Bad, что подтверждает отсутствие антиапоптотической защиты клеток и создает условия для активации митохондриальной «ветви» апоптоза в печени самцов мышей db/db с выраженными признаками ожирения и СД2.</p></abstract><trans-abstract xml:lang="en"><p>Obesity and diabetes mellitus are known to lead to the development of metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). The mechanisms of programmed cell death are actively involved in maintaining cellular homeostasis along development of NAFLD. Proteins of the BCL-2 family are key regulators of physiological and pathological apoptosis. Homozygous males of BKS.Cg-Dock7mLeprdb/+/+/J mice (db/db mice) are characterized by progressive obesity and the development of type 2 diabetes mellitus (DM2) with severe hyperglycemia at 4–8 weeks and organ lesions at 8–10 weeks of age. The aim of this research was to study the expression of molecular cell regulators of apoptosis in liver cells of db/db mice males at different stages of obesity and diabetes development (at the age of 10 and 18 weeks). Immunohistochemical analysis (using the indirect avidin-biotin peroxidase method) and morphometric evaluation of the expression of the antiapoptotic protein Bcl-2 and the proapoptotic protein Bad in liver cells of studied animals at different stages of obesity and DM2 were carried out. An excess of the value of the Bcl-2 protein staining area over the Bad protein staining area was revealed in the liver of 10-week-old animals. The Bcl-2/Bad expression area ratio in 10-week-old animals was twice as high as in 18-week-old animals, which indicates the presence of conditions for blocking apoptosis in the liver of younger db/db mice. At the 18th week of life, db/db mice displayed an almost threefold increase in the expression area of the Bad protein against the background of an unchanged expression of the Bcl-2 protein. The decrease in the Bcl-2/Bad staining area ratio in 18-week-old animals was due to the increase in the Bad expression area, which indicates the absence of antiapoptotic cell protection and creates conditions for activation of the mitochondrial pathway of apoptosis in the liver of male db/db mice with pronounced signs of obesity and DM2.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мыши db/db</kwd><kwd>ожирение</kwd><kwd>сахарный диабет 2-го типа</kwd><kwd>печень</kwd><kwd>эндотелиоциты</kwd><kwd>гепатоциты</kwd><kwd>Bcl-2</kwd><kwd>Bad</kwd></kwd-group><kwd-group xml:lang="en"><kwd>db/db mice</kwd><kwd>obesity</kwd><kwd>type 2 diabetes mellitus (DM2)</kwd><kwd>liver</kwd><kwd>endothelial cells</kwd><kwd>hepatocytes</kwd><kwd>Bcl-2</kwd><kwd>Bad</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">Begriche K., Massart J., Robin M.A., Borgne-Sanchez A., Fromenty B. 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