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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">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">40853</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2024-28-3-331-339</article-id><article-id pub-id-type="edn">AFKRGE</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>PHYSIOLOGY. EXPERIMENTAL PHYSIOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ФИЗИОЛОГИЯ. ЭКСПЕРИМЕНТАЛЬНАЯ ФИЗИОЛОГИЯ</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">The role of endogenous H2S in experimental metabolic syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Роль эндогенного H2S при экспериментальном метаболическом синдроме</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1237-9786</contrib-id><contrib-id contrib-id-type="spin">4878-1005</contrib-id><name-alternatives><name xml:lang="en"><surname>Birulina</surname><given-names>Julia G.</given-names></name><name xml:lang="ru"><surname>Бирулина</surname><given-names>Ю. Г.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9348-4945</contrib-id><contrib-id contrib-id-type="spin">4961-9959</contrib-id><name-alternatives><name xml:lang="en"><surname>Ivanov</surname><given-names>Vladimir V.</given-names></name><name xml:lang="ru"><surname>Иванов</surname><given-names>В. В.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6714-1938</contrib-id><contrib-id contrib-id-type="spin">6383-3580</contrib-id><name-alternatives><name xml:lang="en"><surname>Buyko</surname><given-names>Evgeny E.</given-names></name><name xml:lang="ru"><surname>Буйко</surname><given-names>Е. Е.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9478-3429</contrib-id><contrib-id contrib-id-type="spin">8005-8110</contrib-id><name-alternatives><name xml:lang="en"><surname>Voronkova</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Воронкова</surname><given-names>О. В.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4008-5606</contrib-id><contrib-id contrib-id-type="spin">7863-9900</contrib-id><name-alternatives><name xml:lang="en"><surname>Chernyshov</surname><given-names>Nikita A.</given-names></name><name xml:lang="ru"><surname>Чернышов</surname><given-names>Н. А.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5047-8668</contrib-id><contrib-id contrib-id-type="spin">8973-8056</contrib-id><name-alternatives><name xml:lang="en"><surname>Gusakova</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Гусакова</surname><given-names>С. В.</given-names></name></name-alternatives><email>birulina20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Siberian State Medical University</institution></aff><aff><institution xml:lang="ru">Сибирский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2024</year></pub-date><volume>28</volume><issue>3</issue><issue-title xml:lang="en">PHYSIOLOGY. EXPERIMENTAL PHYSIOLOGY</issue-title><issue-title xml:lang="ru">ФИЗИОЛОГИЯ. ЭКСПЕРИМЕНТАЛЬНАЯ ФИЗИОЛОГИЯ</issue-title><fpage>331</fpage><lpage>339</lpage><history><date date-type="received" iso-8601-date="2024-09-30"><day>30</day><month>09</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Birulina J.G., Ivanov V.V., Buyko E.E., Voronkova O.V., Chernyshov N.A., Gusakova S.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Бирулина Ю.Г., Иванов В.В., Буйко Е.Е., Воронкова О.В., Чернышов Н.А., Гусакова С.В.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Birulina J.G., Ivanov V.V., Buyko E.E., Voronkova O.V., Chernyshov N.A., Gusakova S.V.</copyright-holder><copyright-holder xml:lang="ru">Бирулина Ю.Г., Иванов В.В., Буйко Е.Е., Воронкова О.В., Чернышов Н.А., Гусакова С.В.</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/40853">https://journals.rudn.ru/medicine/article/view/40853</self-uri><abstract xml:lang="en"><p style="text-align: justify;"><italic>Relevance</italic>. The gasotransmitter hydrogen sulphide (H<sub>2</sub>S) is a well-known signalling molecule that is involved in the regulation of a wide range of cellular functions in both health and disease. Its biological effects in obesity and metabolic syndrome (MetS) have been investigated. It is a promising pharmacological target for the correction of MetS and associated diseases. <italic>The aim </italic>of this study is to investigate the role of endogenously produced H<sub>2</sub>S in the pathogenesis of metabolic disorders in experimental Met S.<italic> Materials and Methods</italic>. A high-fat and high-carbohydrate diet was used to induce MS in male Wistar rats. The body and adipose tissue weights of the animals were determined. The animals body and adipose tissue weights were measured. Indicators of carbohydrate and lipid metabolism in the blood serum were determined with the use of reagent kits. Additionally, the levels of reactive oxygen species (ROS) and reduced glutathione (GSH) were analyzed in adipose tissue through photometric analysis. The concentration of H<sub>2</sub>S in blood serum and adipose tissue, as well as H<sub>2</sub>S production by adipocytes, was measured spectrophotometrically. <italic>Results and Discussion</italic>. H<sub>2</sub>S concentrations in blood serum, adipose tissue and adipocyte H<sub>2</sub>S production were found to decrease in animals with hyperglycaemia and insulin resistance. Additionally, a negative correlation was observed between the H<sub>2</sub>S content and production in the adipose tissue of rats with the mass of visceral adipose tissue. Furthermore, a negative relationship was found between the concentrations of glucose, insulin, leptin, ROS and the level of H<sub>2</sub>S in blood serum and adipose tissue. In contrast, the increase in glutathione (GSH) in adipocytes was directly correlated with the increase in hydrogen sulfide (H<sub>2</sub>S) in serum and adipose tissue cells. <italic>Conclusions</italic>. The regulatory effect of H<sub>2</sub>S on target cell function has been extensively studied. However, its role in the development and progression of MetS remains unclear. Our work demonstrates that under conditions of metabolic pathology, there is a decrease in the serum concentration of H2S and its production in adipose tissue. This decrease correlates with the development of obesity, hyperglycemia, insulinemia, leptinemia, and redox imbalance.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;"><italic>Актуальность.</italic> Газовый трансмиттер сероводород (H<sub>2</sub>S) известен как сигнальная молекула, участвующая в регуляции многих клеточных функций в норме и при патологических состояниях. В последнее время активно изучаются биологические эффекты H<sub>2</sub>S при ожирении и метаболическом синдроме (МС) с позиции перспективы разработки фармакологических агентов, обеспечивающих патогенетически обоснованную коррекцию данного синдрома и ассоциированных с ним заболеваний. <italic>Цель работы</italic> состояла в изучении роли эндогенно продуцируемого H<sub>2</sub>S в патогенезе метаболических нарушений при экспериментальном МС. <italic>Материалы и методы</italic>. Моделирование диет-индуцированного МС выполняли на крысах-­самцах Wistar с помощью высокожировой и высокоуглеводной диеты. У животных определяли массу тела и жировой ткани. В сыворотке крови измеряли показатели углеводного и липидного обмена с использованием наборов реагентов. В жировой ткани фотометрически анализировали уровень активных форм кислорода (АФК) и восстановленного глутатиона (GSH). Концентрацию H<sub>2</sub>S в сыворотке крови, жировой ткани и интенсивность его продукции регистрировали спектрофотометрически. <italic>Результаты и обсуждение</italic>. Установлено, что на фоне гипергликемии и инсулинорезистентности снижалась концентрация H<sub>2</sub>S в сыворотке крови, жировой ткани и интенсивность продукции H<sub>2</sub>S клетками жировой ткани. Выявлена отрицательная корреляция между содержанием H<sub>2</sub>S, его продукцией в жировой ткани крыс и массой висцеральной жировой ткани. Обнаружена отрицательная взаимосвязь между концентрацией глюкозы, инсулина, лептина, АФК и уровнем H<sub>2</sub>S в сыворотке крови и жировой ткани. Напротив, повышение GSH в жировой ткани прямо коррелировало с увеличением уровня H<sub>2</sub>S в сыворотке крови и клетках жировой ткани. <italic>Выводы</italic>. Несмотря на всестороннее изучение регуляторного действия H<sub>2</sub>S на функцию клеток-­мишеней, сведения о его значимости в развитии и прогрессировании МС весьма неоднозначны и продолжают раскрываться. В нашей работе показано, что в условиях метаболической патологии происходит снижение сывороточной концентрации H<sub>2</sub>S и его продукции в жировой ткани, которое коррелирует с развитием ожирения, гипергликемии, инсулинемии, лептинемии, нарушением редокс-­статуса.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hydrogen sulfide</kwd><kwd>metabolic syndrome</kwd><kwd>obesity</kwd><kwd>hyperglycemia</kwd><kwd>insulin resistance</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сероводород</kwd><kwd>метаболический синдром</kwd><kwd>ожирение</kwd><kwd>гипергликемия</kwd><kwd>инсулинорезистентность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kolluru GK, Shen X, Yuan S, Kevil CG. 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