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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">Terapevticheskii arkhiv</journal-id><journal-title-group><journal-title xml:lang="en">Terapevticheskii arkhiv</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапевтический архив</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0040-3660</issn><issn publication-format="electronic">2309-5342</issn><publisher><publisher-name xml:lang="en">LLC Obyedinennaya Redaktsiya</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">691513</article-id><article-id pub-id-type="doi">10.26442/00403660.2026.04.203576</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные 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">Interleukin-1 activity regulators in acute decompensated heart failure: dependence on obesity degree</article-title><trans-title-group xml:lang="ru"><trans-title>Регуляторы активности интерлейкина-1 при острой декомпенсации сердечной недостаточности: зависимость от степени ожирения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3687-7085</contrib-id><name-alternatives><name xml:lang="en"><surname>Korotaeva</surname><given-names>Alexandra A.</given-names></name><name xml:lang="ru"><surname>Коротаева</surname><given-names>Александра Алексеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р биол. наук, рук. лаб. биохимии воспалительных процессов атерогенеза</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1396-5736</contrib-id><name-alternatives><name xml:lang="en"><surname>Samoilova</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Самойлова</surname><given-names>Елена Виленовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>канд. мед. наук, вед. науч. сотр. лаб. биохимии воспалительных процессов атерогенеза; старший преподаватель каф. медицинской кибернетики и информатики им. С.А. Гаспаряна</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8942-4851</contrib-id><name-alternatives><name xml:lang="en"><surname>Medvedev</surname><given-names>Oleg S.</given-names></name><name xml:lang="ru"><surname>Медведев</surname><given-names>Олег Стефанович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., рук. лаб. экспериментальной фармакологии; зав. каф. фармакологии</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-4263-5936</contrib-id><name-alternatives><name xml:lang="en"><surname>Drugova</surname><given-names>Daria A.</given-names></name><name xml:lang="ru"><surname>Другова</surname><given-names>Дарья Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>ординатор отд. сердечной недостаточности и заболеваний миокарда</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0920-7417</contrib-id><name-alternatives><name xml:lang="en"><surname>Nasonova</surname><given-names>Svetlana N.</given-names></name><name xml:lang="ru"><surname>Насонова</surname><given-names>Светлана Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотр. отд. сердечной недостаточности и заболеваний миокарда</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4066-2661</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhirov</surname><given-names>Igor V.</given-names></name><name xml:lang="ru"><surname>Жиров</surname><given-names>Игорь Витальевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, вед. науч. сотр. отд. сердечной недостаточности и заболеваний миокарда</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9234-6129</contrib-id><name-alternatives><name xml:lang="en"><surname>Tereshchenko</surname><given-names>Sergey N.</given-names></name><name xml:lang="ru"><surname>Терещенко</surname><given-names>Сергей Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., рук. отд. сердечной недостаточности и заболеваний миокарда</p></bio><email>erihter@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Chazov National Medical Research Center of Cardiology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр кардиологии им. акад. Е.И. Чазова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University (Pirogov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России (Пироговский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Московский государственный университет им. М.В. Ломоносова»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-05-02" publication-format="electronic"><day>02</day><month>05</month><year>2026</year></pub-date><volume>98</volume><issue>4</issue><issue-title xml:lang="en">Issues of diagnostics of internal diseases</issue-title><issue-title xml:lang="ru">Вопросы диагностики внутренних болезней</issue-title><fpage>226</fpage><lpage>230</lpage><history><date date-type="received" iso-8601-date="2025-09-26"><day>26</day><month>09</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</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-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ter-arkhiv.ru/0040-3660/article/view/691513">https://ter-arkhiv.ru/0040-3660/article/view/691513</self-uri><abstract xml:lang="en"><p><bold>Aim.</bold> To assess the circulating levels of IL-1 and its activity regulators, IL-1Ra and IL-1R2, in patients with acute decompensated heart failure (ADHF) depending on body mass index (BMI).</p> <p><bold>Materials and methods.</bold> The study included 159 patients hospitalized for ADHF. Depending on the BMI, the patients were assigned to 5 groups. The first group included 30 patients with healthy weight (BMI&lt;25 kg/m<sup>2</sup>), the second – 50 overweight patients (25≤BMI&lt;30 kg/m<sup>2</sup>), the third – 38 patients with class I obesity (30≤BMI&lt;35 kg/m<sup>2</sup>), the fourth – 28 patients with class II obesity (35≤BMI&lt;40 kg/m<sup>2</sup>), the fifth group – 13 patients with class III obesity (BMI≥40 kg/m<sup>2</sup>).</p> <p><bold>Results.</bold> With increasing BMI, IL-1 levels increased, while IL-1R2 levels, on the contrary, decreased, but no statistically significant differences were found. IL-1Ra concentrations changed ambiguously and had U-shaped dependence. IL-1Ra levels were lower in overweight patients than in normal weight and obese groups. At the same time, the increase in obesity was accompanied by higher IL-1Ra levels. The highest IL-1Ra value was observed at a BMI≥40 kg/m<sup>2</sup>.</p> <p><bold>Conclusion.</bold> In ADHF an increase in obesity is accompanied by an increase in the inhibition of IL-1 activity, which may be one of the mechanisms by which adipose tissue exerts a protective effect.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель.</bold> Оценить циркулирующие уровни интерлейкина (ИЛ)-1 и регуляторов его активности – антагониста рецептора ИЛ-1 (ИЛ-1Ра) и рецептора ИЛ-1 типа 2 (ИЛ-1Р2) – у пациентов с острой декомпенсацией сердечной недостаточности (ОДСН) в зависимости от индекса массы тела (ИМТ).</p> <p><bold>Материалы и методы.</bold> В исследование включены 159 пациентов, госпитализированных в стационар по поводу ОДСН. В зависимости от ИМТ пациенты отнесены к 5 группам. В 1-ю группу вошли 30 пациентов с нормальной массой тела – ИМТ&lt;25 кг/м<sup>2</sup>, во 2-ю – 50 пациентов с избыточной массой тела и ИМТ 25–29 кг/м<sup>2</sup>, в 3-ю – 38 пациентов с ожирением 1-й степени и ИМТ 30–34 кг/м<sup>2</sup>, в 4-ю – 28 пациентов с ожирением 2-й степени и ИМТ 34–39 кг/м<sup>2</sup>, в 5-ю группу – 13 пациентов с ожирением 3-й степени и ИМТ≥40 кг/м<sup>2</sup>.</p> <p><bold>Результаты.</bold> При увеличении ИМТ уровни ИЛ-1 в крови повышались, а уровни ИЛ-1Р2, наоборот, понижались, однако статистической значимости различий не выявлено. Концентрации ИЛ-1Ра менялись неоднозначно и имели U-образную форму зависимости. У пациентов с избыточной массой тела уровни ИЛ-1Ра оказались ниже, чем у пациентов с нормальной массой тела и в группах с ожирением. При этом увеличение степени ожирения сопровождалось повышением уровней ИЛ-1Ра. Наибольшее значение ИЛ-1Ра отмечалось при ИМТ≥40 кг/м<sup>2</sup>.</p> <p><bold>Заключение.</bold> Увеличение степени ожирения у пациентов с ОДСН сопровождается усилением ингибирования активности ИЛ-1, что может быть одним из механизмов защитного эффекта жировой ткани.</p></trans-abstract><kwd-group xml:lang="en"><kwd>interleukin-1</kwd><kwd>interleukin-1 receptor antagonist</kwd><kwd>inflammation</kwd><kwd>obesity</kwd><kwd>acute decompensated heart failure</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>интерлейкин-1</kwd><kwd>антагонист рецептора интерлейкина-1</kwd><kwd>воспаление</kwd><kwd>ожирение</kwd><kwd>острая декомпенсация сердечной недостаточности</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Сафиуллина А.А., Ускач Т.М., Сайпудинова К.М., и др. Сердечная недостаточность и ожирение. Терапевтический архив. 2022;94(9); 1115-21 [Safiullina AA, Uskach TM, Saipudinova KM, et al. 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