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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 Clinical Laboratory Diagnostics</journal-id><journal-title-group><journal-title xml:lang="en">Russian Clinical Laboratory Diagnostics</journal-title><trans-title-group xml:lang="ru"><trans-title>Клиническая лабораторная диагностика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-2084</issn><issn publication-format="electronic">2412-1320</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">642718</article-id><article-id pub-id-type="doi">10.17816/cld642718</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Association of hemostasis system gene variants with gestational venous thrombosis in women with aggravated reproductive history</article-title><trans-title-group xml:lang="ru"><trans-title>Взаимосвязь вариантов генов системы гемостаза с гестационными венозными тромбозами у женщин с отягощённым акушерско-гинекологическим анамнезом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7070-3209</contrib-id><contrib-id contrib-id-type="spin">8400-2602</contrib-id><name-alternatives><name xml:lang="en"><surname>Perevezentsev</surname><given-names>Oleg A.</given-names></name><name xml:lang="ru"><surname>Перевезенцев</surname><given-names>Олег Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>PZPO@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0783-2873</contrib-id><contrib-id contrib-id-type="spin">7171-2625</contrib-id><name-alternatives><name xml:lang="en"><surname>Mamedov</surname><given-names>Ilgar S.</given-names></name><name xml:lang="ru"><surname>Мамедов</surname><given-names>Ильгар Салехович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>is_mamedov@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Rostov State Medical University</institution></aff><aff><institution xml:lang="ru">Ростовский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">V.F. Voyno-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children</institution></aff><aff><institution xml:lang="ru">Научно-практический центр специализированной медицинской помощи детям им. В.Ф. Войно-Ясенецкого</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-05-27" publication-format="electronic"><day>27</day><month>05</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2024-05-13" publication-format="electronic"><day>13</day><month>05</month><year>2024</year></pub-date><volume>69</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>38</fpage><lpage>45</lpage><history><date date-type="received" iso-8601-date="2024-12-09"><day>09</day><month>12</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2025-04-21"><day>21</day><month>04</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Perevezentsev O.A., Mamedov I.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Перевезенцев О.А., Мамедов И.С.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Perevezentsev O.A., Mamedov I.S.</copyright-holder><copyright-holder xml:lang="ru">Перевезенцев О.А., Мамедов И.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2028-05-31"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://kld-journal.fedlab.ru/0869-2084/article/view/642718">https://kld-journal.fedlab.ru/0869-2084/article/view/642718</self-uri><abstract xml:lang="en"><p><bold>Background:</bold><italic> </italic>Venous thrombosis is a multifactorial disease manifested by the hemostasis system overactivation. Gestational venous thrombosis is one of hemostasis disorders . It can lead to various pregnancy complications. That is why it is important to consider the etiopathogenesis of this condition, including the hereditary factors.</p> <p><bold>Aim:</bold><italic> </italic>The study aimed to investigate the association of blood coagulation genes variants with venous thrombosis in pregnancy in women with aggravated reproductive history.</p> <p><bold>Materials and methods: </bold>the study included 311 women aged 18 to 39 years who had at least 1 pregnancy with aggravated reproductive history and gestational venous thrombosis of various localizations detected during the gravid period; as well as 225 controls. The genotypes of selected genetic variants were investigated by real-time polymerase chain reaction with melting curve analysis.</p> <p><bold>Results:</bold><italic> </italic>The association was detected for 4 genetic variants: F2 20210 G&gt;A, F5 1691 G&gt;A, FGB −455 G&gt;A, and PAI-1 −675 5G&gt;4G. These genes encode plasma hemostasis factors. Therefore, this group factors are associated with the etiopathogenesis of gestational venous thrombosis in women with aggravated reproductive history.</p> <p><bold>Conclusion:</bold><italic> </italic>Thus, we found an association of 4 plasma hemostasis factor genetic variants with hereditary predisposition to gestational venous thrombosis in women with aggravated reproductive history.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Венозные тромбозы — мультифакториальная патология, проявляющаяся избыточной активацией системы гемостаза. К одному из типов нарушений в системе гемостаза относятся гестационные венозные тромбозы, которые могут приводить к различным осложнениям беременности. Именно поэтому важно учитывать этиопатогенез данного состояния, в том числе вклад наследственных факторов.</p> <p><bold>Цель</bold> — исследование взаимосвязи ряда генетических вариантов генов свёртывания крови с венозными тромбозами, возникающими во время беременности у женщин с отягощённым акушерско-гинекологическим анамнезом.</p> <p><bold>Материалы и методы.</bold> В исследование были включены 311 женщин в возрасте от 18 до 39 лет, у которых минимум 1 беременность была с отягощённым акушерско-гинекологическим анамнезом, причём в гравидарный период были выявлены гестационные венозные тромбозы различных локализаций, а также 225 женщин контрольной группы. Исследование генотипов выбранных генетических вариантов проводилось методом полимеразной цепной реакции (ПЦР) в реальном времени с анализом кривых плавления.</p> <p><bold>Результаты.</bold> Ассоциация была выявлена для 4-х генетических вариантов: F2 20210 G&gt;A, F5 1691 G&gt;A, FGB −455 G&gt;A и PAI-1 −675 5G&gt;4G. Данные гены кодируют плазменные факторы гемостаза, поэтому факторы этой группы связаны с этиопатогенезом гестационных венозных тромбозов у женщин с отягощённым акушерско-гинекологическим анамнезом.</p> <p><bold>Заключение.</bold> Таким образом, мы установили ассоциацию 4-х генетических вариантов генов плазменных факторов гемостаза с наследственной предрасположенностью к гестационным венозным тромбозам у женщин с отягощённым акушерско-гинекологическим анамнезом.</p></trans-abstract><kwd-group xml:lang="en"><kwd>genetic variant</kwd><kwd>thrombophilia</kwd><kwd>habitual abortion</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>генетический вариант</kwd><kwd>гестационная тромбофилия</kwd><kwd>привычное невынашивание беременности</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Colman RW, Marder VJ, Clowes AW, et al. Hemostasis and thrombosis. Basic principles and clinical practice. 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