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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2022-1-133-143</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-4709</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>ОБЗОРЫ И ЛЕКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEW AND LECTURES</subject></subj-group></article-categories><title-group><article-title>Молекулярно-генетические маркеры длительности интервала QT и внезапная сердечная смерть: обзор литературы</article-title><trans-title-group xml:lang="en"><trans-title>Molecular genetic markers of QT interval duration and sudden cardiac death: literature review</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1432-0473</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нестерец</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Nesterets</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нестерец Алина Михайловна – мл. науч. сотрудник, сектор изучения моногенных форм распространенных заболеваний; аспирант</p><p>630090, г. Новосибирск, пр. Академика Лаврентьева, 10630089, г. Новосибирск, ул. Бориса Богаткова, 175/1</p></bio><bio xml:lang="en"><p>10, Akademika Lavrentieva Av., Novosibirsk, 630090175/1, Borisa Bogatkova Str., Novosibirsk, 630089</p></bio><email xlink:type="simple">alinvaleeva1994@gmail.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/0000-0002-7165-4496</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Максимов</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максимов Владимир Николаевич – д-р мед. наук, профессор, зав. лабораторией молекулярно-генетических исследований терапевтических заболеваний; профессор, кафедра медицинской генетики и биологии</p><p>630090, г. Новосибирск, пр. Академика Лаврентьева, 10630089, г. Новосибирск, ул. Бориса Богаткова, 175/1</p></bio><bio xml:lang="en"><p>10, Akademika Lavrentieva Av., Novosibirsk, 630090175/1, Borisa Bogatkova Str., Novosibirsk, 630089</p></bio><email xlink:type="simple">Medik11@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный исследовательский центр «Институт цитологии и генетики» Сибирского отделения Российской академии наук (ФИЦ ИЦиГ СО РАН); Научно-исследовательский институт терапии и профилактической медицины – филиал Федерального исследовательского центра «Институт цитологии и генетики» Сибирского отделения Российской академии наук (НИИТПМ – филиал ИЦиГ СО РАН)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center “Institute of Cytology and Genetics” of the Siberian Branch, Russian Academy of Sciences (FRC IC&amp;G SB RAS); Research Institute of Internal and Preventive Medicine (IIPM), Branch of the Federal Research Center “Institute of Cytology and Genetics”, Siberian Branch of the Russian Academy of Sciences (FRC IC&amp;G SB RAS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>15</day><month>04</month><year>2022</year></pub-date><volume>21</volume><issue>1</issue><fpage>133</fpage><lpage>143</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нестерец А.М., Максимов В.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Нестерец А.М., Максимов В.Н.</copyright-holder><copyright-holder xml:lang="en">Nesterets A.M., Maksimov V.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://bulletin.ssmu.ru/jour/article/view/4709">https://bulletin.ssmu.ru/jour/article/view/4709</self-uri><abstract><p>Изучение внезапной сердечной смерти (ВСС) и ее этиопатогенетических факторов в кардиологической практике остается одной из наиболее актуальных проблем здравоохранения. В западных странах ВСС составляет 20% общей летальности и 50% летальности, связанной с сердечно-сосудистыми заболеваниями. Рассматривая электрическую нестабильность миокарда в качестве одной из главных причин развития жизнеугрожающих аритмий (желудочковая тахикардия/фибрилляция желудочков) и ВСС, следует помнить о таких провоцирующих факторах, как ишемическая болезнь сердца, миокардит, клапанные пороки сердца, фармакологические влияния, кардиомиопатии и каналопатии. Увеличение или уменьшение длительности интервала QT, который отражает работу ионных каналов, процессы деполяризации и реполяризации миокарда желудочков, повышает риск ВСС.</p><p>Цель данного обзора – изучение и анализ имеющихся данных литературы о взаимосвязи молекулярно-генетических маркеров с длительностью интервала QT.</p><p>На сегодняшний день существует ряд генетических исследований, позволяющих идентифицировать большое количество мутаций, полиморфизмов известных генов, оказывающих влияние на вариабельность интервала QT, показывая их значимость в стратификации риска внезапной аритмогенной смерти, выборе верной тактики ведения, профилактики и лечения пациентов, уменьшая вероятность ВСС. Прогностическая ценность генетического тестирования наиболее высока для синдрома удлиненного интервала QT (LQTS), для которого установлен ген-специфический профиль риска, и в меньшей степени определена при других каналопатиях. Большой объем генетических данных может стать многообещающим подходом для количественной оценки риска ВСС, особенно в молодом возрасте, чему способствует дальнейшее изучение данной проблемы.</p></abstract><trans-abstract xml:lang="en"><p>The study of sudden cardiac death (SCD) and its etiopathogenesis in cardiology practice remains one of the most pressing public health problems. In Western countries, SCD accounts for 20% of the total mortality and 50% of mortality associated with cardiovascular diseases. Considering the electrical instability in the myocardium as one of the main reasons for the development of life-threatening arrhythmias (ventricular tachycardia / ventricular fibrillation) and SCD, one should be aware of such provoking factors as ischemic heart disease, myocarditis, valvular heart disease, pharmacological influences, cardiomyopathy, and channelopathy. An increase or decrease in the duration of the QT interval, which reflects the work of ion channels, as well as ventricular depolarization and repolarization, increases the risk of SCD.</p><p>The aim of this review was to study and analyze the available literature data on the relationship of molecular genetic markers with the duration of the QT interval.</p><p>Currently, there is a number of genetic studies that allow to identify a large number of mutations and polymorphisms of known genes that affect the variability of the QT interval, showing their significance in risk stratification of sudden arrhythmic death and choosing the right tactics for managing, preventing, and treating patients, thus reducing the risk of SCD. The predictive value of genetic testing is the highest for long QT syndrome (LQTS), for which a gene-specific risk profile has been established, and lower for other channelopathies. A large amount of genetic data may be a promising approach to quantifying the risk of SCD, especially at a young age, which will be facilitated by further study of this problem.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внезапная сердечная смерть</kwd><kwd>длительность интервала QT</kwd><kwd>синдром удлиненного интервала QT</kwd><kwd>синдром укороченного интервала QT</kwd><kwd>однонуклеотидный полиморфизм</kwd><kwd>молекулярно-генетический маркер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sudden cardiac death</kwd><kwd>duration of the QT interval</kwd><kwd>long QT syndrome</kwd><kwd>short QT syndrome</kwd><kwd>single nucleotide polymorphism</kwd><kwd>molecular genetic marker</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом РФФИ № 17-29-06026, а также частично грантом № НШ-2595.2020.7 и бюджетными проектами № 0324-2016-0002, № 0120.0502961 в рамках государственного задания № AAAA-A19-119100990053-4.</funding-statement><funding-statement xml:lang="en">The work was supported by RFBR grant No. 17-29-06026, as well as partially by grant No. SS-2595.2020.7 and budgetary projects No. 0324-2016-0002, No. 0120.0502961 within the state assignment No. AAAA-A19-119100990053-4.</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">Zaman S., Goldberger J.J., Kovoor P. 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