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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">Obstetrics and Gynecology</journal-id><journal-title-group><journal-title xml:lang="en">Obstetrics and Gynecology</journal-title><trans-title-group xml:lang="ru"><trans-title>Акушерство и гинекология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0300-9092</issn><issn publication-format="electronic">2412-5679</issn><publisher><publisher-name xml:lang="en">Bionika Media</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">247932</article-id><article-id pub-id-type="doi">10.18565/aig.2017.3.62-7</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">The role of gene polymorphisms of the hemostatic system and folate cycle enzymes in the development of retrochorial hematoma</article-title><trans-title-group xml:lang="ru"><trans-title>Роль полиморфизма генов системы гемостаза и ферментов фолатного цикла в формировании ретрохориальной гематомы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetsova</surname><given-names>Natalia Borisovna</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>Наталья Борисовна</given-names></name></name-alternatives><bio xml:lang="en"><p>Ph.D. in medical sciences, the assistant of the Department of Obstetrics, Gynecology and Reproduction № 4</p></bio><bio xml:lang="ru"><p>к.м.н., доцент кафедры акушерства, гинекологии, перинатологии и репродуктивной медицины № 4</p></bio><email>lauranb@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bushtyreva</surname><given-names>Irina Olegovna</given-names></name><name xml:lang="ru"><surname>Буштырева</surname><given-names>Ирина Олеговна</given-names></name></name-alternatives><bio xml:lang="en"><p>MD, Professor, the Head of the Department of Obstetrics, Gynecology and Reproduction № 4; leading researcher</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, зав. кафедрой акушерства, гинекологии, перинатологии и репродуктивной медицины № 4; ведущий научный сотрудник отдела медико-социальных исследований</p></bio><email>kio4@mail.ru</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>Donnikov</surname><given-names>Andrey Evgenievich</given-names></name><name xml:lang="ru"><surname>Донников</surname><given-names>Андрей Евгеньевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Ph.D. in medical sciences, leading researcher of Laboratory of molecular genetic methods</p></bio><bio xml:lang="ru"><p>к.м.н., с.н.с. лаборатории молекулярно-генетических методов</p></bio><email>a_donnikov@oparina4.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mashkina</surname><given-names>Elena Vladimirovna</given-names></name><name xml:lang="ru"><surname>Машкина</surname><given-names>Елена Владимировна</given-names></name></name-alternatives><bio xml:lang="en"><p>Ph.D. in biological sciences, the assistant of the genetics department</p></bio><bio xml:lang="ru"><p>д.б.н., доцент кафедры генетики</p></bio><email>lenmash@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dybova</surname><given-names>Violetta Sergeevna</given-names></name><name xml:lang="ru"><surname>Дыбова</surname><given-names>Виолетта Сергеевна</given-names></name></name-alternatives><bio xml:lang="en"><p>obstetrician-gynecologist</p></bio><bio xml:lang="ru"><p>врач акушер-гинеколог</p></bio><email>viola-kovaleva@mail.ru</email><xref ref-type="aff" rid="aff4"/></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 Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ НЦАГиП им. академика В.И. Кулакова Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Federal Autonomous Educational Institution of Higher Education the Southern Federal University</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО Южный федеральный университет</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Perinatal Center</institution></aff><aff><institution xml:lang="ru">ГБУ Ростовской области Перинатальный центр</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2017</year></pub-date><issue>3</issue><issue-title xml:lang="en">NO3 (2017)</issue-title><issue-title xml:lang="ru">№3 (2017)</issue-title><fpage>62</fpage><lpage>67</lpage><history><date date-type="received" iso-8601-date="2023-02-18"><day>18</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Bionika Media</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, ООО «Бионика Медиа»</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Bionika Media</copyright-holder><copyright-holder xml:lang="ru">ООО «Бионика Медиа»</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0300-9092/article/view/247932">https://journals.eco-vector.com/0300-9092/article/view/247932</self-uri><abstract xml:lang="en"><p>Objective. To assess the role of gene polymorphisms of the hemostatic system and folate cycle enzymes in the development of retrochorial hematoma (RCH). Subjects and methods. The investigation enrolled 305pregnant women who were examined and treated at the Rostov Regional Perinatal Center. All the pregnant women were divided into 2 groups: 1) 238pregnant women with RCH; 2) (a control group) 67 pregnant women with clinically normal pregnancy without RCH, as evidenced by first-trimester ultrasound. To identify genetic markers determining the development of chorion detachment, the pregnant women in the first-trimester underwent genotyping of four polymorphic loci of the folate cycle genes (MTHFR C677T, MTHFR A1298C, MTR А2756G, and MTRR А66С) and eight hemostatic genes (F2 G20210A, F5 G1691A, G10976A F7, F13 G103T, FGB G-455А, C807TITGA2, ITGB3 Т1565С, and SERPINE1-675 5G/4G). Results. Significant differences were obtained in a study of the distribution of the alleles G10976A of the F7 gene, G103T of the F13 gene, and G-455A of the FGB gene in a group of pregnant women with RCH versus that of pregnant women with clinically normal pregnancy. The A allele of F7 G10976A, the T allele F13 G103T, and the A allele of FGB G-455A were found to be associated with a high risk for RCH. Conclusion. The F7 gene (proconvertin, CF VII) polymorphism G10976A (rs 6046), the F13 gene (Fibrinase, CF XIII) G103T polymorphism (rs 5985), and the FGB gene (fibrinogen β-chain) polymorphism G-455A (rs 1800790) are associated with the risk of RCH.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования. Оценить роль полиморфизма генов системы гемостаза и ферментов фолатного цикла в развитии ретрохориальной гематомы. Материал и методы. В исследование были включены 305 беременных, которые находились на обследовании и лечении в ГБУ РО Перинатальный центр. Все беременные были разделены на 2 группы: в первую группу вошли 238 беременных с ретрохориальной гематомой, вторую (контрольную) группу составили 67 беременных с клинически нормально протекающей беременностью без ретрохориальной гематомы по результатам УЗИ в I триместре. С целью выявления генетических маркеров, определяющих развитие отслойки хориона, у беременных в I триместре проводили генотипирование четырех полиморфных лоуксов генов фолатного цикла (MTHFR С677Т, MTHFR A1298C, MTR A2756G, MTRR A66G) и восьми генов системы гемостаза (F2 G20210A, F5 G1691A, F7 G10976A, F13 G103T, FGB G-455A, ITGA2 C807T, ITGB3 Т1565С, SERPINE1-675 5G/4G). Результаты. Получены достоверные различия при исследовании распределения аллелей G10976A гена F7, G103Tгена F13, G-455A гена FGB в группе беременных с ретрохориальной гематомой при сравнении с группой беременных с клинически нормально протекающей беременностью. Аллель А полиморфизма G10976A гена F7, аллель Тполиморфизма G103Tгена F13 и аллель А полиморфизма G-455A гена FGB связаны с высоким риском развития ретрохориальной гематомы. Заключение. Полиморфизм генов F7 (проконвертин, КФ VII) G10976A (rs 6046), F13 (фибриназа, КФ XIII) G103T (rs 5985), FGB (β-цепь фибриногена) G-455A (rs 1800790) ассоциирован с риском развития ретрохориальной гематомы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>retrochorial hematoma</kwd><kwd>gene polymorphisms</kwd><kwd>folate cycle genes</kwd><kwd>hemostatic genes</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ретрохориальная гематома</kwd><kwd>полиморфизм генов</kwd><kwd>гены фолатного цикла</kwd><kwd>гены системы гемостаза</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pri-Paz S.M., D’Alton M.E. Placental abruption. In: Copel J.A., ed. Obstetric imaging. 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