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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2021-36-3-119-126</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1253</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Возрастные особенности формирования инсулинорезистентности организма и чувствительности к инсулину адипоцитов у крыс при индуцированном метаболическом синдроме</article-title><trans-title-group xml:lang="en"><trans-title>Age-related features of developing insulin resistance and adipocyte sensitivity to insulin in rats with induced metabolic syndrome</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2264-1928</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нарыжная</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Naryzhnaya</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нарыжная Наталья Владимировна - доктор медицинских наук, ведущий научный сотрудник, лаборатория экспериментальной кардиологии.</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Natalia V. Naryzhnaya, Dr. Sci. (Med.)., Leading Research Scientist, Laboratory of Experimental Cardiology.</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">natalynar@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1237-9786</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бирулина</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Birulina</surname><given-names>Yu. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бирулина Юлия Георгиевна – кандидат биологических наук, доцент кафедры биофизики и функциональной диагностики.</p><p>634050, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Yulia G. Birulina, Cand. Sci. (Biol.), Associate Professor, Department of Biophysics and Functional Diagnostics.</p><p>2, Moskovsky tract, Tomsk, 634050</p></bio><email xlink:type="simple">birulina20@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9603-822X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курбатов</surname><given-names>Б. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurbatov</surname><given-names>B. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курбатов Борис Константинович - младший научный сотрудник, лаборатория экспериментальной кардиологии.</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Boris K. Kurbatov, Junior Research Scientist, Laboratory of Experimental Cardiology.</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">bobersanker@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4502-0836</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сиротина</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sirotina</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сиротина Мария Александровна - младший научный сотрудник, лаборатория экспериментальной кардиологии.</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Maria A. Sirotina, Junior Research Scientist, Laboratory of Experimental Cardiology.</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">sirotina_maria@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6020-1598</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маслов</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Maslov</surname><given-names>L. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Маслов Леонид Николаевич - доктор медицинских наук, профессор, заведующий лабораторией экспериментальной кардиологии.</p><p>634012, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>Leonid N. Maslov, Dr. Sci. (Med.), Professor, Head of the Laboratory of Experimental Cardiology.</p><p>111a, Kievskaya str., Tomsk, 634012</p></bio><email xlink:type="simple">maslov@cardio-tomsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сибирский государственный медицинский университет Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2021</year></pub-date><volume>36</volume><issue>3</issue><fpage>119</fpage><lpage>126</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нарыжная Н.В., Бирулина Ю.Г., Курбатов Б.К., Сиротина М.С., Маслов Л.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Нарыжная Н.В., Бирулина Ю.Г., Курбатов Б.К., Сиротина М.С., Маслов Л.Н.</copyright-holder><copyright-holder xml:lang="en">Naryzhnaya N.V., Birulina Y.G., Kurbatov B.K., Sirotina M.A., Maslov L.N.</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.sibjcem.ru/jour/article/view/1253">https://www.sibjcem.ru/jour/article/view/1253</self-uri><abstract><p>Пожилой возраст и инсулинорезистентность, сопровождающая метаболический синдром, являются значимыми факторами формирования сердечно-сосудистой патологии.</p><sec><title>Цель работы</title><p>Цель работы: выявление возрастных особенностей формирования инсулинорезистентности организма и резистентности к инсулину адипоцитов крыс при индуцированном метаболическом синдроме.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Исследование проведено на крысах-самцах линии Вистар, которые были распределены на следующие группы: 1-я (n = 14) – интактные крысы в возрасте 150 дней на момент окончания исследования; 2-я  (n = 14) – крысы в возрасте 150 дней на момент окончания 90-дневной диеты с высоким содержанием углеводов и жиров (ВУВЖД); 3-я (n = 14) – интактные крысы 540-дневного возраста на момент окончания исследования; 4-я (n = 14) – крысы в возрасте 540 дней после окончания 90-дневной ВУВЖД. Состав диеты: 16% белков, 21% жиров, 46% углеводов, в том числе 17% фруктозы, 0,125% холестерина с заменой питьевой воды 20%-м раствором фруктозы. По окончании диеты измеряли массу тела, органов, содержание в сыворотке крови глюкозы, инсулина, триглицеридов, лептина, триглицеридов в печени. Адипоциты эпидидимальной жировой ткани выделяли энзиматически, исследовали содержание активных форм кислорода (АФК) с помощью 2,3-дигидродихлорфлуоресцеина диацетата (DCF); выявлено усиление выработки АФК и ингибирование липолиза в ответ на инсулин.</p></sec><sec><title>Результаты</title><p>Результаты. Обнаружено, что в обеих возрастных группах при ВУВЖД формируются признаки метаболического синдрома: висцеральное ожирение, гипергликемия, инсулинорезистентность (HOMA-IR), однако в группе молодых крыс более выражены показатели ожирения, в то время как у крыс старшей возрастной группы – призна   ки инсулинорезистентности. Лептинемия имела прямую корреляционную связь с HOMA-IR (rSp = 0,485; p = 0,03). Инсулинорезистентность адипоцитов наблюдали у крыс старше 540 дней после ВУВЖД.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные результаты позволяют говорить о том, что возраст является фактором риска развития инсулинорезистентности организма; под влиянием возраста происходит снижение чувствительности адипоцитов к инсулину при метаболическом синдроме. Возможным механизмом усугубления инсулинорезистентности с возрастом может быть повышение содержания лептина в сыворотке крови.</p></sec></abstract><trans-abstract xml:lang="en"><p>Old age and insulin resistance accompanying metabolic syndrome are significant factors in the development of cardiovascular pathology.</p><sec><title>Aim</title><p>Aim. The aim of the study was to identify the age-related characteristics of developing insulin resistance on the body level and insulin resistance in rat adipocytes in animals with induced metabolic syndrome.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The study was carried out on male Wistar rats, which were divided into the following groups: group 1 (n = 14) comprised intact rats aged 150 days at the end of study; group 2 (n = 14) comprised rats aged 150 days at the end of 90-day period on diet with high contents of carbohydrates and fats (HCHFD); group 3 (n = 14) comprised intact rats aged 540 days at the end of the study; group 4 (n = 14) comprised rats aged 540 days after the end of 90-day HCHFD. Diet composition was as follows: 16% proteins, 21% fats, 46% carbohydrates including 17% fructose, 0.125% cholesterol, and replacement of drinking water with a 20%-fructose solution. At the end of the diet, body and organ weights were measured, and contents of glucose, insulin, triglycerides, serum leptin, and liver triglycerides were assessed. Epididymal adipose tissue adipocytes were isolated enzymatically. The content of reactive oxygen species (ROS) was investigated using 2,3-dihydrodichlorofluorescein diacetate. Increased ROS production and lipolysis inhibition in response to insulin were observed.</p></sec><sec><title>Results</title><p>Results. The signs of metabolic syndrome were observed in both age groups of HCHFD animals and included visceral obesity, hyperglycemia, and insulin resistance measured by homeostatic model assessment of insulin resistance (HOMA-IR). However, the obesity indicators were more pronounced in the group of young rats, whereas the signs of insulin resistance prevailed in older rats. Leptinemia directly correlated with HOMA-IR (rSp = 0.485, p = 0.03). Insulin resistance of adipocytes was observed in rats older than 540 days after the HCHFD.</p></sec><sec><title>Conclusion</title><p>Conclusion. The obtained results suggested that age was a risk factor for the development of insulin resistance on the body level. Aging resulted in a decrease in the adipocyte sensitivity to insulin in metabolic syndrome. An increase in leptin may be a possible mechanism for worsening of insulin resistance with age.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>возраст</kwd><kwd>инсулинорезистентность</kwd><kwd>метаболический синдром</kwd></kwd-group><kwd-group xml:lang="en"><kwd>age</kwd><kwd>insulin resistance</kwd><kwd>metabolic syndrome</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы фундаментальных исследований А15-115120910024-0. Разработка методики моделирования индуцированного метаболического синдрома выполнена при финансовой поддержке Совета по грантам Российской Федерации (МК-143.2020.4)</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the theme of fundamental research A15-115120910024-0</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Katsimardou A., Imprialos K., Stavropoulos K., Sachinidis A., Dou mas M., Athyros V. Hypertension in metabolic syndrome: Novel insights. Curr. Hypertens. Rev. 2020;16(1):12–18. DOI: 10.2174/1573402115666190415161813.</mixed-citation><mixed-citation xml:lang="en">Katsimardou A., Imprialos K., Stavropoulos K., Sachinidis A., Dou mas M., Athyros V. Hypertension in metabolic syndrome: Novel insights. Curr. Hypertens. Rev. 2020;16(1):12–18. 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