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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" article-type="research-article" dtd-version="1.1d1" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</journal-id><journal-title-group><journal-title>Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</journal-title></journal-title-group><issn publication-format="electronic">1990-472X</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный медицинский университет имени Н.Н. Бурденко" Министерства здравоохранения Российской Федерации</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">11007</article-id><article-id pub-id-type="doi">10.18499/1990-472X-2025-26-3-31-44</article-id><article-categories><subj-group subj-group-type="heading"><subject></subject></subj-group></article-categories><title-group><article-title>Study of endothelial dysfunction in patients &#13;
with acute myeloid leukemia during chemotherapeutic treatment</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Chibashova</surname><given-names>Angelica Vladimirovna</given-names></name><bio>&lt;p&gt;Assistant Professor of Hospital Therapy with courses in Hematology and Transfusiology&lt;/p&gt;</bio><email>a.v.antipova@samsmu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Gergel</surname><given-names>Julia Анатольевна</given-names></name><bio>&lt;p&gt;PhD, Associate Professor of the Department of Hospital Therapy with courses in hematology and transfusiology&lt;/p&gt;</bio><email>yu.a.gergel@samsmu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Davydkin</surname><given-names>Igor Leonidovich</given-names></name><bio>&lt;p&gt;MD, Professor, Head of the Department of Hospital Therapy with courses in hematology and transfusiology&lt;/p&gt;</bio><email>i.l.davydkin@samsmu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff id="aff-1">FGBOU HE SamSMU of the Ministry of Health of Russia</aff><pub-date date-type="epub" iso-8601-date="2025-11-10" publication-format="electronic"><day>10</day><month>11</month><year>2025</year></pub-date><volume>26</volume><issue>3</issue><fpage>31</fpage><lpage>44</lpage><history><pub-date date-type="received" iso-8601-date="2025-10-02"><day>02</day><month>10</month><year>2025</year></pub-date></history><permissions><copyright-statement>Copyright © 2025, Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</copyright-statement><copyright-year>2025</copyright-year></permissions><abstract>&lt;p&gt;A common complication of anthracycline therapy in patients with acute myeloid leukemia is the development of cardiovascular toxicity. Endothelial dysfunction is one of the pathogenetic mechanisms of cardiovascular disease development, which is why there is interest in its assessment in clinical practice. The aim of the study was to assess endothelial dysfunction in patients with acute myeloid leukemia during chemotherapy.&lt;/p&gt;&#13;
&lt;p&gt;Materials and methods: The study included 110 patients with newly diagnosed acute myeloid leukemia who were prescribed polychemotherapy with anthracycline drugs. Patients were divided into groups based on the detection of cardiovascular toxicity, defined as a decrease in global longitudinal deformation of the left ventricle by more than 15%. All patients underwent assessment of endothelial damage biomarker levels (endothelin-1, asymmetric dimethylarginine) and laser Doppler flowmetry parameters during the study.&lt;/p&gt;&#13;
&lt;p&gt;Results: In patients with acute myeloid leukemia, signs of endothelial dysfunction are determined during chemotherapy with anthracycline drugs, which is manifested by an increase in the concentration of endothelial damage biomarkers (endothelin-1 and asymmetric dimethylarginine) and a decrease in microcirculation parameters assessed using laser Doppler flowmetry (microcirculation index, blood flow variation coefficient, amplitudes of myogenic and endothelial vasomotions and blood flow fluctuations associated with cardiac rhythms; results of respiratory and occlusion tests). Correlation relationships were revealed between the levels of endothelial biomarkers and laser Doppler flowmetry parameters in patients of the study group.&lt;/p&gt;&#13;
&lt;p&gt;Conclusion: Patients with acute myeloid leukemia receiving chemotherapy with anthracycline drugs show signs of endothelial dysfunction. Evaluation of microcirculation parameters using laser Doppler flowmetry is an accessible and reliable method for early detection of endothelial dysfunction.&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>acute myeloid leukemia, anthracycline drugs, cardiotoxicity, endothelial dysfunction, laser Doppler flowmetry, endothelin-1, asymmetric dimethylarginine.</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>острые миелоидные лейкозы, антрациклиновые препараты, кардиотоксичность, эндотелиальная дисфункция, лазерная допплеровская флуометрия, эндотелин-1, асимметричный диметиларгинин</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Васюк Ю.А., Гендлин Г.Е., Емелина Е.И., Шупенина Е.Ю., Баллюзек М.Ф., Баринова И.В. и др.  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