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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2021-20-2-87-91</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-952</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>ОРИГИНАЛЬНЫЕ СТАТЬИ (ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (EXPERIMENTAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Роль активных форм кислорода в инфаркт-лимитирующем эффекте гипоксического прекондиционирования</article-title><trans-title-group xml:lang="en"><trans-title>The role of reactive oxygen species in the infarct-limiting effect of hypoxic preconditioning</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6991-4930</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенцов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sementsov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семенцов Андрей Сергеевич – младший научный сотрудник лаборатории экспериментальной кардиологии; ассистент кафедры физиологии</p><p>634012, г. Томск, ул. Киевская, д. 111А</p><p>634050, г. Томск, пр. Ленина, д. 36</p></bio><bio xml:lang="en"><p>Sementsov Andrey S. – Researcher, Laboratory of Experimental Cardiology; Assistant, Department of Physiology</p><p>111a, Kievskaya str., Tomsk, 634012</p><p>36, Lenin pr., Tomsk, 634050</p></bio><email xlink:type="simple">hamkot@sibmail.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/0000-0003-2264-1928</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 Наталия Владимировна – д-р мед. наук, ведущий научный сотрудник лаборатории экспериментальной кардиологии</p><p>634012, г. Томск, ул. Киевская, д. 111А</p></bio><bio xml:lang="en"><p>Naryzhnaya Natalia V. – MD, DSc, Principal Investigator, 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-2"/></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. А.</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 – лаборант лаборатории экспериментальной кардиологии</p><p>634012, г. Томск, ул. Киевская, д. 111А</p></bio><bio xml:lang="en"><p>Sirotina Maria A. – laboratory assistant, 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-2"/></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 – д-р. мед. наук, профессор, зав. лабораторией экспериментальной кардиологии</p><p>634012, г. Томск, ул. Киевская, д. 111А</p></bio><bio xml:lang="en"><p>Maslov Leonid N. – MD, DSc, 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-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Томский национальный исследовательский медицинский центр Российской академии наук», Научно-исследовательский институт кардиологии; Федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский Томский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center of the RAS; National Research Tomsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Томский национальный исследовательский медицинский центр Российской академии наук», Научно-исследовательский институт кардиологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cardiology Research Institute, Tomsk National Research Medical Center of the RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>13</day><month>06</month><year>2021</year></pub-date><volume>20</volume><issue>2</issue><fpage>87</fpage><lpage>91</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семенцов А.С., Нарыжная Н.В., Сиротина М.А., Маслов Л.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Семенцов А.С., Нарыжная Н.В., Сиротина М.А., Маслов Л.Н.</copyright-holder><copyright-holder xml:lang="en">Sementsov A.S., Naryzhnaya N.V., 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.microcirc.ru/jour/article/view/952">https://www.microcirc.ru/jour/article/view/952</self-uri><abstract><p>Введение. Повышение устойчивости сердца к ишемии/реперфузии (И/Р) является актуальной задачей физиологии, фармакологии и кардиохирургии, поскольку И/Р-повреждения сердца нередко являются причиной кардиогенного шока и последующей гибели пациентов в послеоперационном периоде. Материалы и методы. Исследование было выполнено на крысах-самцах, у которых воспроизводили коронароокклюзию (45 мин) и реперфузию (2 ч). Перед коронароокклюзией моделировали раннее гипоксическое прекондиционирование (ГП). Крыс подвергали шести сеансам гипоксии (8 % O2, 10 мин) и реоксигенации (21 % O2, 10 мин) за 30 мин до коронароокклюзии. Крысам вводили следующие препараты: 1,3-диметилтиомочевина (ДМТМ), 2-меркаптопропионил глицин (2-МПГ), дефероксамин. Результаты. Было установлено, что ГП способствует уменьшению размера инфаркта миокарда на 30 %. Предварительное введение ДМТМ, 2-МПГ, дефероксамин устраняло инфаркт-лимитирующий эффект ГП. Заключение. Полученные данные указывают, что активные формы кислорода участвуют в кардиопротекторном эффекте ГП.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Increased resistance of the heart to ischemia/reperfusion (I/R) is an urgent aim of physiology, pharmacology, and cardiac surgery, since I/R injury of the heart is often the cause of cardiogenic shock and subsequent death of patients in the postoperative period. Materials and methods. The study was carried out in male rats which were subjected to coronary artery occlusion (45 min) and reperfusion (2 h). Before coronary occlusion, early hypoxic preconditioning (HP) was modeled. The rats were subjected to six sessions of hypoxia (8 % O2, 10 min) and reoxygenation (21 % O2, 10 min) 30 min before coronary artery occlusion. The rats were injected with the following drugs: 1,3-dimethylthiourea (DMTM), 2-mercaptopropionyl glycine (2-MPG), deferoxamine. Results. It was found that HP contributes to infarct size reduction by 30 %. Preliminary administration of DMTM, 2-MPG, deferoxamine eliminated the infarct-reducing effect of HP. Conclisuon. The obtained data indicate that reactive oxygen species are involved in the cardioprotective effect of HP.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сердце</kwd><kwd>ишемия</kwd><kwd>реперфузия</kwd><kwd>гипоксическое прекондиционирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heart</kwd><kwd>ischemia</kwd><kwd>reperfusion</kwd><kwd>hypoxic preconditioning</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена при поддержке гранта РФФИ № 21-515-53003. Раздел, посвященный дефероксамину, оформлен в рамках гос. задания АААА-А15-115120910024-0. Авторы выражают признательность Н. А. Данильченко, А. В. Мухомедзянов и И. А. Деркачеву за техническую помощь.</funding-statement><funding-statement xml:lang="en">This article was prepared with the support of a grant from the Russian Foundation of Basic Research 21-515-53003. The section on deferoxamine is prepared within the framework of the state tasks AAAA-A15-115120910024-0. The authors are grateful to N. A. Danilchenko for technical assistance.</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">Alam SR, Stirrat C, Spath N, Zamvar V, Pessotto R, Dweck MR, Moore C, Semple S, El-Medany A, Manoharan D, Mills NL, Shah A, Mirsadraee S, Newby DE, Henriksen PA. Myocardial inflammation, injury and infarction during onpump coronary artery bypass graft surgery. J Cardiothorac Surg. 2017;12(1):115. Doi: 10.1186/s13019-017-0681-6.</mixed-citation><mixed-citation xml:lang="en">Alam SR, Stirrat C, Spath N, Zamvar V, Pessotto R, Dweck MR, Moore C, Semple S, El-Medany A, Manoharan D, Mills NL, Shah A, Mirsadraee S, Newby DE, Henriksen PA. Myocardial inflammation, injury and infarction during onpump coronary artery bypass graft surgery. 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