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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">fcmedicine</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и клиническая медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Clinical Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2500-0764</issn><issn pub-type="epub">2542-0941</issn><publisher><publisher-name>КемГМУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.23946/2500-0764-2022-7-4-45-50</article-id><article-id custom-type="elpub" pub-id-type="custom">fcmedicine-603</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Особенности лабораторных маркеров состояния гемодинамики у пациентов средней и тяжелой степени течения COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Biomarkers of hemodynamic status in patients with moderate and severe COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6408-239X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шаповалов</surname><given-names>Ю. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Shapovalov</surname><given-names>Yu. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шаповалов Юрий Константинович, ассистент кафедры оториноларингологии</p><p>672000, г. Чита, ул. Горького, д. 39а</p></bio><bio xml:lang="en"><p>Dr. Yuri K. Shapovalov, MD, Assistant Professor, Department of Otorhinolaryngology</p><p>39a, Gor’kogo Street, Chita, 672000</p></bio><email xlink:type="simple">yurashap95@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Читинская государственная медицинская академия» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chita State Medical Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>29</day><month>12</month><year>2022</year></pub-date><volume>7</volume><issue>4</issue><fpage>45</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шаповалов Ю.К., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Шаповалов Ю.К.</copyright-holder><copyright-holder xml:lang="en">Shapovalov Y.K.</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://fcm.kemsmu.ru/jour/article/view/603">https://fcm.kemsmu.ru/jour/article/view/603</self-uri><abstract><p>Нарушения гемодинамики у пациентов средней и тяжелой степени течения COVID-19 − один из важных факторов повреждения органов. Однако в литературе мало работ, демонстрирующих изменения гуморальных регуляторов функционального состояния гемодинамики.</p><sec><title>Цель</title><p>Цель. Оценить лабораторные маркеры состояния гемодинамики у среднетяжелых и тяжелых пациентов с вирусной пневмонией, ассоциированной с COVID-19.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Обследованы 2 группы пациентов: пятнадцать средней степени тяжести и шестнадцать тяжелобольных COVID-19. Контрольную группу составили 20 здоровых добровольцев. Методом ИФА определяли содержание эндотелина-1, BNP, NT-proBNP (Enzyme-Linked Immunosorbent Assay Kit; Elisa Cloud-Clone). Количество нитритов NO2 и нитратов NO3 определяли методом, основанным на ферментном превращении нитрата в нитрит. Реакция регистрировала колориметрическую концентрацию нитрита по азокрасителю, образующемуся в реакции Грисса (набор Total Nitric Oxide and Nitrate/Nitrite Parameter Assay Kit; Elisa Cloud-Clon).</p></sec><sec><title>Результаты</title><p>Результаты. Объективно подтверждены изменения маркеров состояния гемодинамики у пациентов COVID-19. Значения NO, NO2, эндотелина-1 оказались крайне вариабельными. При этом уровень NT-proBNP и BNP у пациентов средней степени тяжести меньше на 65% и больше на 472%, а у тяжелобольных меньше на 50% и больше на 548% относительно контроля соответственно (p&lt;0,05). Это является признаком повышенной нагрузки левого желудочка и сердечной недостаточности.</p></sec><sec><title>Заключение</title><p>Заключение. При усугублении тяжести течения COVID-19 в крови прогрессивно возрастает уровень BNP и снижается NT-proBNP, изменений концентрации нитритов не отмечается.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To assess laboratory markers of hemodynamic status in patients with moderate to severe COVID-19.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Here we examined 15 patients with moderate COVID-19 and 16 critically ill COVID-19 patients. The control group consisted of 20 healthy volunteers. The levels of endothelin-1, brain natriuretic peptide (BNP), and N-terminal pro-brain natriuretic peptide (NT-proBNP) were measured by enzyme-linked immunosorbent assay. The amounts of nitrites (NO2) and nitrates (NO3) were measured by a Griess test (an enzymatic conversion of nitrates to nitrites) with a following colorimetric analysis.</p></sec><sec><title>Results</title><p>Results. Measurements of endothelin-1, nitrites, and nitrates showed high variability. The levels of NT-proBNP were reduced by 65% and 50% in patients with moderate and severe COVID-19, respectively (p &lt; 0.05). In contrast, the levels of BNP were elevated by 472% and 548% in these patient categories (p &lt; 0.05). These results indicated increased left ventricular load and suggested a heart failure.</p></sec><sec><title>Conclusion</title><p>Conclusion. Progressive increase of BNP and concurrent reduction of NT-proBNP indicate affected hemodynamics in patients with moderate and severe COVID-19.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>нарушение функции левого желудочка</kwd><kwd>NT-proBNP</kwd><kwd>BNP</kwd><kwd>дисфункция эндотелия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>left ventricular dysfunction</kwd><kwd>NT-proBNP</kwd><kwd>BNP</kwd><kwd>endothelial dysfunction</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">Bonaventura A, Vecchié A, Dagna L, Martinod K, Dixon DL, Van Tassell BW, Dentali F, Montecucco F, Massberg S, Levi M, Abbate A. Endothelial dysfunction and immunothrombosis as key pathogenic mechanisms in COVID-19. Nat Rev Immunol. 2021;21(5):319-329. http://doi.org/10.1038/s41577-021-00536-9</mixed-citation><mixed-citation xml:lang="en">A. 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