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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2021-6.5.3</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-3026</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>БИОХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Регуляция свободнорадикальных процессов при экспериментальной гипертермии у здоровых добровольцев и больных ишемической болезнью сердца во время волн летней жары</article-title><trans-title-group xml:lang="en"><trans-title>Regulation of free radical processes in healthy volunteers during experimental hyperthermia and in patients with coronary artery disease during summer heat waves</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3870-9923</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихазе</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhaze</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, главный научный сотрудник Отдела биохимии свободнорадикальных процессов, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, Chief Research Officer at the Department of Biochemistry of Free Radical Processes, </p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">allatikhaze@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/0000-0002-0172-9472</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коновалова</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Konovalova</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник Отдела биохимии свободнорадикальных процессов, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Cand. Sc. (Biol.), Senior Research Officer at the Department of Biochemistry of Free Radical Processes,</p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">gavakon5050@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/0000-0002-5208-6032</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Осяева</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Osyaeva</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-кардиолог 2-го клинического отделения, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Cardiologist of the Department of Pulmonary Hypertension and Heart Diseases,</p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">osyaeva.m@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/0000-0001-6515-3882</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>М. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>M. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, врач-кардиолог, старший научный сотрудник консультативно-диагностического отделения, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Cardiologist, Senior Research Officer at the Consultative and Diagnostic Department,</p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">naliya1@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/0000-0002-9022-8097</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартынюк</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Martynyuk</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, руководитель Отдела лёгочной гипертензии и заболеваний сердца, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, the Head of the Department of Pulmonary Hypertension and Heart Diseases, </p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">trukhiniv@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/0000-0002-8018-0296</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ланкин</surname><given-names>В. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Lankin</surname><given-names>V. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, профессор, руководитель Отдела биохимии свободнорадикальных процессов, </p><p>121552, г. Москва, 3-я Черепковская ул., 15а</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, the Head of the Department of Biochemistry of Free Radical Processes, </p><p>3-ya Cherepkovskaya str. 15a, Moscow 121552</p></bio><email xlink:type="simple">lankin0309@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр кардиологии» Министерства здравоохранения Российской Федерации</institution></aff><aff xml:lang="en"><institution>National Medical Research Center of Cardiology of Ministry of Health of the Russian Federation</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>17</day><month>11</month><year>2021</year></pub-date><volume>6</volume><issue>5</issue><fpage>19</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тихазе А.К., Коновалова Г.Г., Осяева М.К., Смирнова М.Д., Мартынюк Т.В., Ланкин В.З., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Тихазе А.К., Коновалова Г.Г., Осяева М.К., Смирнова М.Д., Мартынюк Т.В., Ланкин В.З.</copyright-holder><copyright-holder xml:lang="en">Tikhaze A.K., Konovalova G.G., Osyaeva M.K., Smirnova M.D., Martynyuk T.V., Lankin V.Z.</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.actabiomedica.ru/jour/article/view/3026">https://www.actabiomedica.ru/jour/article/view/3026</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. В связи с ухудшающимся прогнозом по глобальному повышению температуры в мире представляется актуальным изучение влияния аномальной жары на системные процессы регуляции у людей с хроническими заболеваниями, в частности ишемической болезнью сердца (ИБС).</p></sec><sec><title>Цель исследования</title><p>Цель исследования: изучить влияние гипертермии на показатели окислительного стресса у больных с различной степенью тяжести ишемической болезни сердца (ИБС) и здоровых людей.</p></sec><sec><title>Методы исследования</title><p>Методы исследования. Изучались показатели окислительного стресса (уровень малонового диальдегида – МДА, активность Cu,Zn-содержащей супероксиддисмутазы – Cu,Zn-СОД) у здоровых людей в условиях искусственно моделируемой гипертермии и у пациентов с различной тяжестью течения ИБС при воздействии волн летней жары.</p></sec><sec><title>Результаты</title><p>Результаты. При моделировании гипертермии у здоровых добровольцев выявлены проявления окислительного стресса, заключающиеся в увеличении содержания МДА в плазме крови. Одновременно отмечено увеличение активности утилизирующего активные формы кислорода фермента – Cu,Zn-СОД. Увеличение активности Cu,Zn-СОД происходит с некоторой задержкой по  сравнению с накоплением МДА, что объяснимо продолжительностью процесса индукции биосинтеза фермента de novo. При исследовании пациентов с риском смертности от заболеваний сердечно-сосудистой системы по шкале SCORE (без осложнённого течения ИБС) было показано, что во время волн летней жары в плазме крови также происходит накопление МДА при одновременном увеличении активности эритроцитарной Cu,Zn-СОД. В группе больных ИБС с выраженным поражением коронарных сосудов (по данным ангиографии) во время волн летней жары было выявлено нарушение регуляции свободнорадикальных процессов, заключающееся в значительном накоплении МДА в плазме крови без компенсаторного увеличения активности эритроцитарной Cu,Zn-СОД.</p></sec><sec><title>Заключение</title><p>Заключение. Выявлено нарушение регуляции свободнорадикальных процессов у пациентов с тяжёлым клиническим течением ИБС. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. In view of the worsening forecast for global temperature rise worldwide, it seems relevant to study the effects of abnormal heat waves on systemic regulatory processes in people with chronic diseases, in particular coronary artery disease (CAD).</p></sec><sec><title>Aims</title><p>Aims. This study aimed to investigate the effect of hyperthermia on oxidative stress parameters in patients with various severity of CAD and in healthy subjects.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We studied the level of malonic dialdehyde (MDA) and the activity of Cu,Zn-containing superoxide dismutase (Cu,Zn-SOD) in healthy subjects under conditions of 30-day long simulated hyperthermia and in patients with different severity of CAD after the summer heat waves</p></sec><sec><title>Results</title><p>Results. We revealed signs of oxidative stress in healthy volunteers during model hyperthermia that manifested as an increase in content of MDA in blood plasma. At the  same time we observed increasing activity of Cu,Zn-SOD in erythrocytes that  utilizes reactive oxygen species. The increase of Cu,Zn-SOD activity started with a certain latency what also can be explained by de novo enzyme biosynthesis induction. We also studied oxidative stress parameters in patients at high and moderate cardiovascular risk according to the SCORE risk chart with uncomplicated CAD course and in patients with complicated CAD with severe coronary damage according to angiography during the summer heat waves. We observed accumulation of MDA in blood plasma and increasing activity of erythrocyte Cu,Zn-SOD in patients with uncomplicated CAD. At the same time we noted that accumulation of MDA in blood plasma was not followed by any increase in activity of red blood cell Cu,Zn-SOD in patients with severe complicated CAD. This fact indicates dysregulation of free radical processes in patients with severe course of CAD during the heat waves.</p></sec><sec><title>Conclusions</title><p>Conclusions. The dysregulation of free-radical processes in patients with a severe clinical course of CAD has been revealed. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>окислительный стресс</kwd><kwd>малоновый диальдегид</kwd><kwd>эритроцитарная Cu</kwd><kwd>Zn-супероксиддисмутаза</kwd><kwd>гипертермия</kwd><kwd>атеросклероз</kwd><kwd>ишемическая болезнь сердца</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oxidative stress</kwd><kwd>malonic dialdehyde</kwd><kwd>Cu</kwd><kwd>Zn-containing superoxide dismutase</kwd><kwd>hyperthermia</kwd><kwd>atherosclerosis</kwd><kwd>coronary artery disease</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">Dimitrova A, Ingole V, Basagaña X, Ranzani O, Milà C, Ballester J, at al. Association between ambient temperature and heat waves with mortality in South Asia: Systematic review and meta-analysis. 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