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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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">91124</article-id><article-id pub-id-type="doi">10.17816/KMJ91124</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and clinical medicine</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретическая и клиническая медицина</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Expression of microRNA-590 in patients with chronic coronary heart disease, atrial fibrillation, and their combination</article-title><trans-title-group xml:lang="ru"><trans-title>Экспрессия микроРНК-590 у пациентов с хронической ишемической болезнью сердца, фибрилляцией предсердий, а также их сочетанием</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2123-7141</contrib-id><name-alternatives><name xml:lang="en"><surname>Lerner</surname><given-names>Dina D.</given-names></name><name xml:lang="ru"><surname>Лернер</surname><given-names>Дина Даулетовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD Stud., Depart. of Hospital Therapy</p></bio><bio xml:lang="ru"><p>аспирант, каф. госпитальной терапии</p></bio><email>dinakaz84med@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6701-5395</contrib-id><name-alternatives><name xml:lang="en"><surname>Mayanskaya</surname><given-names>Svetlana D.</given-names></name><name xml:lang="ru"><surname>Маянская</surname><given-names>Светлана Дмитриевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>M.D., D. Sci. (Med), Prof., Depart. of Hospital Therapy</p></bio><bio xml:lang="ru"><p>докт. мед. наук, проф., каф. госпитальной терапии</p></bio><email>Smayanskaya@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4227-008X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kravtsova</surname><given-names>Olga A.</given-names></name><name xml:lang="ru"><surname>Кравцова</surname><given-names>Ольга Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biol.), Assoc. Prof., Depart. of Biochemistry, Biotechnology and Pharmacology</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доц., каф. биохимии, биотехнологии и фармакологии</p></bio><email>okravz@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0603-8849</contrib-id><name-alternatives><name xml:lang="en"><surname>Tambovtseva</surname><given-names>Regina S.</given-names></name><name xml:lang="ru"><surname>Тамбовцева</surname><given-names>Регина Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Junior Researcher, IFMiB, Scientific and Clinical Center for Precision and Regenerative Medicine, Open Lab Genetic and Cell Technologies</p></bio><bio xml:lang="ru"><p>мл. научн. сотр., Институт фундаментальной медицины и биологии, Научно-клинический центр прецинзионной и регенеративной медицины, Open Lab генные и клеточные технологии</p></bio><email>rustyamova.regina@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan State Medical University</institution></aff><aff><institution xml:lang="ru">Казанский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kazan (Volga Region) Federal University, Institute of Fundamental Medicine and Biology</institution></aff><aff><institution xml:lang="ru">Казанский (Приволжский) федеральный университет, Институт фундаментальной медицины и биологии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-02-01" publication-format="electronic"><day>01</day><month>02</month><year>2023</year></pub-date><volume>104</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>30</fpage><lpage>37</lpage><history><date date-type="received" iso-8601-date="2021-12-26"><day>26</day><month>12</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2023-01-16"><day>16</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-02-01"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/91124">https://kazanmedjournal.ru/kazanmedj/article/view/91124</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> The role of microRNAs in the processes of remodeling, proliferation, and fibrogenesis of myocardial cells is not clear enough.</p> <p><bold>Aim.</bold> Analysis of the microRNA-590 expression level in patients with chronic coronary heart disease, atrial fibrillation, as well as their combination to assess the potential prognostic significance of the expression level.</p> <p><bold>Material and methods.</bold> The study included 94 patients divided into three clinical groups: the first — with non-valvular atrial fibrillation without coronary heart disease (39 people); the second — with non-valvular atrial fibrillation and coronary heart disease (22 patients); the third — with ischemic heart disease without atrial fibrillation (23 patients). The comparison group consisted of 10 people without atrial fibrillation and coronary heart disease. Venous blood was taken from all subjects, from the plasma of which microRNA was isolated. The relative level of microRNA expression was estimated based on real-time polymerase chain reaction data obtained during the reaction on a cycler using commercial TaqMan probes and primers. The statistical significance of differences between groups was determined using one-way analysis of variance, followed by post-hoc analysis using Tukey's contrasts, differences were considered statistically significant at p &lt;0.05. The Shapiro–Wilk test was used to assess the normality of the distribution of residuals.</p> <p><bold>Results.</bold> A statistically significant decrease in the expression level of microRNA-590 was registered in the third (p=0.0104) and in the second (p=0.0046) groups compared with the control group, as well as in patients with atrial fibrillation and left atrial dilatation (p=0.0313), with recurrent arrhythmias after radiofrequency ablation (p=0.0083) and with permanent atrial fibrillation (p=0.0242).</p> <p><bold>Conclusion.</bold> Ischemic heart disease, including when combined with atrial fibrillation, and aggravating factors, such as left atrial dilatation, permanent atrial fibrillation, recurrence of arrhythmia after radiofrequency ablation, lead to a decrease in the expression level of microRNA-590.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Роль микроРНК в процессах ремоделирования, пролиферации и фиброгенеза миокардиоцитов недостаточно ясна.</p> <p><bold>Цель.</bold> Анализ уровня экспрессии микроРНК-590 у пациентов с хронической ишемической болезнью сердца, фибрилляцией предсердий, а также их сочетанием для оценки потенциальной прогностической значимости уровня экспрессии.</p> <p><bold>Материал и методы исследования.</bold> В исследование были включены 94 пациента, разделённых на три клинических группы: первая — с неклапанной фибрилляцией предсердий без ишемической болезни сердца (39 человек); вторая — с неклапанной фибрилляцией предсердий и ишемической болезнью сердца (22 пациента); третья — с ишемической болезнью сердца без фибрилляции предсердий (23 пациента). Группа сравнения — 10 человек без фибрилляции предсердий и ишемической болезни сердца. У всех исследуемых забирали венозную кровь, из плазмы которой выделяли микроРНК. Относительный уровень экспрессии микроРНК оценивали на основании данных полимеразной цепной реакции в реальном времени, полученных в ходе реакции на амплификаторе с использованием коммерческих TaqMan-зондов и праймеров. Статистическую значимость различий между группами определяли с использованием однофакторного дисперсионного анализа, с последующим post-hoc анализом с помощью контрастов Тьюки, различия считали статистически значимыми при р &lt;0,05. Для оценки нормальности распределения остатков использован тест Шапиро–Уилка.</p> <p><bold>Результаты.</bold> Статистически значимое снижение уровня экспрессии микроРНК-590 зарегистрировано в третьей группе (p=0,0104) и во второй (p=0,0046) по сравнению с группой контроля, а также у пациентов с фибрилляцией предсердий и дилатацией левого предсердия (p=0,0313), с рецидивами нарушения ритма после радиочастотной абляции (p=0,0083) и при постоянной форме фибрилляции предсердий (p=0,0242).</p> <p><bold>Вывод.</bold> Ишемическая болезнь сердца, в том числе и при сочетании с фибрилляцией предсердий, и отягощающие факторы, такие как дилатация левого предсердия, постоянная форма фибрилляции предсердий, рецидивы нарушения ритма после радиочастотной абляции, приводят к снижению уровня экспрессии микроРНК-590.</p></trans-abstract><kwd-group xml:lang="en"><kwd>microRNA-590 expression</kwd><kwd>atrial fibrillation</kwd><kwd>ischemic heart disease</kwd><kwd>left atrial dilatation</kwd><kwd>permanent AF</kwd><kwd>radiofrequency ablation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>экспрессия микроРНК-590</kwd><kwd>фибрилляция предсердий</kwd><kwd>ишемическая болезнь сердца</kwd><kwd>дилатация левого предсердия</kwd><kwd>постоянная форма ФП</kwd><kwd>радиочастотная абляция</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Wang F, Zhang H, Wang C. 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