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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1814-6023-2022-19-3-290-299</article-id><article-id custom-type="elpub" pub-id-type="custom">vestim-863</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>КЛИНИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Кардиопротекторная эффективность посткондиционирования с помощью L-лактата при ишемии-реперфузии миокарда у молодых и старых крыс в условиях системного действия в организме животных блокатора М-холинореактивных систем атропина</article-title><trans-title-group xml:lang="en"><trans-title>Cardioprotective efficiency of postconditioning using L-lactate during ischemia-reperfusion of myocardium in young and old rats under conditions of the systemic action in the animal body of the blocker of M-cholinoreactive systems atropine</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чепелев</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chepelev</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чепелев Сергей Николаевич – ст. преподаватель.</p><p>Пр. Дзержинского, 83, 220116, Минск</p></bio><bio xml:lang="en"><p>Sergey N. Chepelev – Senior Lecturer.</p><p>83, Dzerzhinski Ave., 220116, Minsk</p></bio><email xlink:type="simple">drserge1991@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Висмонт</surname><given-names>Ф. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vismont</surname><given-names>F. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Висмонт Франтишек Иванович – член-корреспондент, доктор медицинских наук, профессор, заведующий кафедрой.</p><p>Пр. Дзержинского, 83, 220116, Минск</p></bio><bio xml:lang="en"><p>Frantishek I. Vismont – Corresponding Member, D. Sc. (Med.), Professor, Head of the Department.</p><p>83, Dzerzhinski Ave., 220116, Minsk</p></bio><email xlink:type="simple">patfiz@bsmu.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Губкин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Goubkin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Губкин Сергей Владимирович – член-корреспондент, доктор медицинских наук, профессор, директор.</p><p>Ул. Академическая, 28, 220072, Минск</p></bio><bio xml:lang="en"><p>Sergey V. Goubkin – Corresponding Member, D. Sc. (Med.), Professor, Director.</p><p>28, Akademicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">goubkin@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт физиологии, НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Physiology, National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>08</day><month>09</month><year>2022</year></pub-date><volume>19</volume><issue>3</issue><fpage>290</fpage><lpage>299</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чепелев С.Н., Висмонт Ф.И., Губкин С.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Чепелев С.Н., Висмонт Ф.И., Губкин С.В.</copyright-holder><copyright-holder xml:lang="en">Chepelev S.N., Vismont F.I., Goubkin S.V.</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://vestimed.belnauka.by/jour/article/view/863">https://vestimed.belnauka.by/jour/article/view/863</self-uri><abstract><p>Защита миокарда от ишемических и реперфузионных повреждений – важная задача современной экспериментальной и клинической медицины. Данный тип повреждений является ключевым звеном патогенеза ишемической болезни сердца и прежде всего острого инфаркта миокарда – социально-экономически значимого заболевания, являющегося одной из основных причин потери трудоспособности и смертности взрослого населения Республики Беларусь.</p><p>Целью исследования являлось выяснение кардиопротекторной эффективности посткондиционирования (Пост) с помощью L-лактата при ишемии-реперфузии миокарда у молодых и старых крыс в условиях системного действия в организме животных блокатора М-холинореактивных систем атропина.</p><p>В опытах на крысах установлено, что Пост с помощью L-лактата оказывает инфаркт-лимитирующий эффект при ишемии-реперфузии миокарда как у молодых, так и у старых животных, однако в условиях системного действия атропина (2 мг/кг) этот эффект частично сохраняется только у старых крыс. По-видимому, активность периферических М-холинореактивных систем имеет значение в механизмах реализации кардиопротекторных эффектов Пост с помощью L-лактата у молодых, но не у старых крыс.</p></abstract><trans-abstract xml:lang="en"><p>Myocardial protection from ischemic and reperfusion injury is an important task of modern experimental and clinical medicine. This type of damage is a key link in the pathogenesis of the coronary heart disease and, above all, acute myocardial infarction – a socio-economically significant disease that is one of the main causes of disability and mortality of the adult population in the Republic of Belarus.</p><p>The aim of the study was to elucidate the cardioprotective efficiency of postconditioning (Post) using L-lactate during ischemia–reperfusion of myocardium in young and old rats under the conditions of systemic action in the body of animals of the blocker of M-cholinergic systems atropine.</p><p>In experiments on rats, it was found that Post using L-lactate has an infarct-limiting effect during ischemia–reperfusion of myocardium in both young and old animals, however, under the conditions of systemic action of atropine (2 mg/kg), this effect was partially preserved only in old rats. Apparently, the activity of peripheral M-cholinergic systems is important in the mechanisms of implementation of the cardioprotective effects of Post using L-lactate in young, but not in old rats.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кардиопротекция</kwd><kwd>посткондиционирование</kwd><kwd>миокард</kwd><kwd>L-лактат</kwd><kwd>ишемия</kwd><kwd>реперфузия</kwd><kwd>инфаркт</kwd><kwd>атропин</kwd><kwd>М-холинореактивные системы</kwd><kwd>возраст</kwd><kwd>крысы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cardioprotection</kwd><kwd>postconditioning</kwd><kwd>myocardium</kwd><kwd>L-lactate</kwd><kwd>ischemia</kwd><kwd>reperfusion</kwd><kwd>infarction</kwd><kwd>atropine</kwd><kwd>M-cholinergic systems</kwd><kwd>age</kwd><kwd>rats</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">Кардиопротективные эффекты ишемического кондиционирования: современные представления о механизмах, экспериментальные подтверждения, клиническая реализация / А. 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