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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">Russian Journal of Genetics</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-6758</issn><issn publication-format="electronic">3034-5103</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">666975</article-id><article-id pub-id-type="doi">10.31857/S0016675824030092</article-id><article-id pub-id-type="edn">DOIQHK</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ГЕНЕТИКА ЧЕЛОВЕКА</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">Search for epistatically interacting genetic variants that are associated with vasovagal syncope within biallelic combinations</article-title><trans-title-group xml:lang="ru"><trans-title>Поиски эпистатически взаимодействующих генетических вариантов, ассоциированных в составе биаллельных сочетаний с вазовагальными обмороками</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Titov</surname><given-names>B. V.</given-names></name><name xml:lang="ru"><surname>Титов</surname><given-names>Б. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>olga.favorova@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Matveeva</surname><given-names>N. F.</given-names></name><name xml:lang="ru"><surname>Матвеева</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>olga.favorova@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bazyleva</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Базылева</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>olga.favorova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pevzner</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Певзнер</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>olga.favorova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Favorova</surname><given-names>O. O.</given-names></name><name xml:lang="ru"><surname>Фаворова</surname><given-names>О. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>olga.favorova@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Chazov National Medical Research Center of Cardiology</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр кардиологии им. академика Е.И. Чазова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University</institution></aff><aff><institution xml:lang="ru">Российский национальный исследовательский медицинский университет им. Н.И. Пирогова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2024</year></pub-date><volume>60</volume><issue>3</issue><fpage>85</fpage><lpage>93</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0016-6758/article/view/666975">https://transsyst.ru/0016-6758/article/view/666975</self-uri><abstract xml:lang="en"><p>The most common cause of transient loss of consciousness is vasovagal syncope (VVS), which occurs due to hypoperfusion of the brain due to the interruption of vegetative blood circulation control leading to arterial hypotension. It is known that there is a genetic predisposition to VVS, but the data on the role of individual genes are quite inconsistent. Using APSampler software,which based on a Markov chain Monte Carlo technique and Bayesian nonparametric statistics, we identified biallelic combinations associated with VVS and investigated the nature of interaction between their components. We used the previously obtained results of genomic typing of single nucleotide polymorphisms (SNPs) of 5 genes, the products of which are involved in neurohumoral regulation, and 4 SNPs within locus 2q32.1, supplemented with data for new individuals included in the study. The total sample included 175 patients with a confirmed diagnosis of VVS and 200 control individuals without a history of syncope. Eleven pairwise combinations of SNPs of different genes were found to be associated with VVS. Five of these combinations were epistatic, four of which included SNPs at the 2q32.1 locus located within or near noncoding RNA genes. It is suggested that genes of noncoding RNAs localized on chromosome 2 may directly or indirectly (through cascades of interactions) participate in the regulation of the activity of genes forming epistatic combinations with them.</p></abstract><trans-abstract xml:lang="ru"><p>Наиболее частой причиной внезапной потери сознания являются вазовагальные обмороки (ВВО), которые возникают вследствие гипоперфузии головного мозга из-за нарушения вегетативного контроля кровообращения, приводящего к артериальной гипотензии. Известно, что к ВВО существует генетическая предрасположенность, однако данные о роли отдельных генов довольно противоречивы. С помощью программного обеспечения APSampler, использующего метод Монте-Карло Марковскими цепями и Байесовскую непараметрическую статистику, мы выявили биаллельные сочетания, ассоциированные с ВВО, и исследовали характер взаимодействия между их компонентами. Для анализа использовали полученные нами ранее результаты геномного типирования однонуклеотидных полиморфизмов (SNP) пяти генов, продукты которых участвуют в нейрогуморальной регуляции, и четырех SNP, расположенных в локусе 2q32.1, пополненные данными для новых индивидов, включенных в исследование. В общую выборку вошло 175 больных с подтвержденным диагнозом ВВО и 200 индивидов контрольной группы без обмороков в анамнезе. Обнаружено 11 ассоциированных с ВВО попарных сочетаний SNP различных генов. пять из этих сочетаний оказались эпистатическими, причем в четырех из них вовлечены SNP локуса 2q32.1, лежащие внутри или вблизи генов некодирующих РНК. Высказано предположение, что гены некодирующих РНК, локализованные на хромосоме 2, могут прямо или опосредованно (через каскады взаимодействий) участвовать в регуляции активности генов, образующих с ними эпистатические пары.</p></trans-abstract><kwd-group xml:lang="en"><kwd>genetic polymorphism</kwd><kwd>epistatic interaction</kwd><kwd>genetic predisposition</kwd><kwd>syncope</kwd><kwd>vasovagal syncope</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>генетический полиморфизм</kwd><kwd>эпистатические взаимодействия</kwd><kwd>генетическая предрасположенность</kwd><kwd>синкопальные состояния</kwd><kwd>вазовагальные обмороки</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>121031300196-1</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Brignole M., Moya A., de Lange F.J. et al.ESC Scientific Document Group. 2018 ESC Guidelines for the diagnosis and management of syncope // European Heart J. 2018. 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