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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">akusherstvo</journal-id><journal-title-group><journal-title xml:lang="en">Obstetrics, Gynecology and Reproduction</journal-title><trans-title-group xml:lang="ru"><trans-title>Акушерство, Гинекология и Репродукция</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2313-7347</issn><issn pub-type="epub">2500-3194</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2313-7347/ob.gyn.rep.2024.538</article-id><article-id custom-type="elpub" pub-id-type="custom">akusherstvo-2171</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="en"><subject>ОRIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group></article-categories><title-group><article-title>Comparative assessment of changes ADAMTS-13/von Willebrand factor axis in singleton and bichorial biamniotic pregnancy</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительная оценка изменений в системе ADAMTS-13/фактор фон Виллебранда при одноплодной и бихориальной биамниотической беременности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8882-1588</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ягубова</surname><given-names>Ф. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Yagubova</surname><given-names>F. Е.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ягубова Фидан Эльчин кызы.</p><p>119991 Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>Fidan E. Yagubova - MD.</p><p>8 bldg. 2, Trubetskaya Str., Moscow 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8404-1042</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бицадзе</surname><given-names>В. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bitsadze</surname><given-names>V. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бицадзе Виктория Омаровна - д.м.н., проф., профессор РАН.</p><p>119991 Москва, ул. Трубецкая, д. 8, стр. 2</p><p>Scopus Author ID 6506003478; WoS ResearcherID F-8409-2017</p></bio><bio xml:lang="en"><p>Victoria O. Bitsadze - MD, Dr Sci Med, Prof., Professor of RAS.</p><p>8 bldg. 2, Trubetskaya Str., Moscow 119991</p><p>Scopus Author ID 6506003478; WoS ResearcherID F-8409-2017</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4564-8439</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самбурова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Samburova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самбурова Наталья Викторовна - к.м.н.</p><p>119991 Москва, ул. Трубецкая, д. 8, стр. 2</p><p>Scopus Author ID 57208129705</p></bio><bio xml:lang="en"><p>Natalia V. Samburova - MD, PhD.</p><p>8 bldg. 2, Trubetskaya Str., Moscow 119991</p><p>Scopus Author ID 57208129705</p></bio><email xlink:type="simple">nsamburova@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0725-9686</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хизроева</surname><given-names>Д. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Khizroeva</surname><given-names>J. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хизроева Джамиля Хизриевна - д.м.н., проф.</p><p>119991 Москва, ул. Трубецкая, д. 8, стр. 2</p><p>Scopus Author ID 57194547147; WoS ResearcherID F-8384-2017</p></bio><bio xml:lang="en"><p>Jamilya Kh. Khizroeva - MD, Dr Sci Med, Prof.</p><p>8 bldg. 2, Trubetskaya Str., Moscow 119991</p><p>Scopus Author ID 57194547147; WoS ResearcherID F-8384-2017</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7415-4633</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макацария</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Makatsariya</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макацария Александр Давидович - д.м.н., проф., академик РАН.</p><p>119991 Москва, ул. Трубецкая, д. 8, стр. 2</p><p>Scopus Author ID 57222220144; WoS ResearcherID M-5660-2016</p></bio><bio xml:lang="en"><p>Alexander D. Makatsariya - MD, Dr Sci Med, Prof., Academician of RAS.</p><p>8 bldg. 2, Trubetskaya Str., Moscow 119991</p><p>Scopus Author ID 57222220144; WoS ResearcherID M-5660-2016</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sechenov University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>12</day><month>09</month><year>2024</year></pub-date><volume>18</volume><issue>4</issue><fpage>514</fpage><lpage>524</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Yagubova F.Е., Bitsadze V.O., Samburova N.V., Khizroeva J.K., Makatsariya A.D., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ягубова Ф.Э., Бицадзе В.О., Самбурова Н.В., Хизроева Д.Х., Макацария А.Д.</copyright-holder><copyright-holder xml:lang="en">Yagubova F.Е., Bitsadze V.O., Samburova N.V., Khizroeva J.K., Makatsariya A.D.</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://www.gynecology.su/jour/article/view/2171">https://www.gynecology.su/jour/article/view/2171</self-uri><abstract><sec><title>Aim</title><p>Aim: to compare changes in the ADAMTS-13 metalloproteinase/von Willebrand factor (vWF) axis in pregnant women with spontaneous or following in vitro fertilization (IVF) singleton and bichorial biamniotic pregnancies.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. A prospective observational randomized controlled trial was conducted. The examination data of pregnant women with singleton (group 1, n = 34) and multiple bichorial biamniotic spontaneous pregnancies (group 2, n = 17), and with singleton (group 3, n = 34) and multiple bichorial biamniotic pregnancies (group 4, n = 34) following reproductive technologies were analyzed. The studied parameters included quantitation of ADAMTS-13 antigen (ADAMTS-13:Ag), ADAMTS-13 activity (ADAMTS-13:Ac) and vWF antigen (vWF: Ag) by chromogenic enzyme immunoassay.</p></sec><sec><title>Results</title><p>Results. A progressive increase in the vWF:Ag level has been revealed that was proportional to escalating gestational age and a decrease in ADAMTS-13:Ag level from the second trimester of physiological non-induced pregnancy, more profound during twin pregnancy (p &lt; 0.001). In induced pregnancy, vWF:Ag level increased, ADAMTS-13:Ag - decreased starting from 6-7 weeks of gestation (p &lt; 0.001), more prominent in twin pregnancy (p &lt; 0.001). The ADAMTS-13 activity in induced single and multiple pregnancies did not differ significantly by trimester but was lower compared with non-induced pregnancies of matched timeframe. The most pronounced decrease in the ADAMTS-13:Ag/vWF:Ag ratio was observed in multiple induced pregnancies.</p></sec><sec><title>Conclusion</title><p>Conclusion. Stimulation of superovulation and subsequent embryo transfer into the uterine cavity is accompanied by higher procoagulant vascular endothelium properties, vWF release, which activates platelets and the coagulation cascade from the early stages of induced pregnancy. vWF hyperreactivity is compensated by the expenditure of ADAMTS-13, which level declines dramatically during twin pregnancy creating conditions for disruption of hemostasis gestational adaptation and increases a risk of thrombotic complications and obstetric pathology.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цель</title><p>Цель: сравнить изменения в оси металлопротеиназа ADAMTS-13/фактор фон Виллебранда (англ. von Willebrand factor, vWF) у беременных с бихориальной биамниотической двойней и одноплодной беременностью, наступившей самопроизвольно или после экстракорпорального оплодотворения (ЭКО).</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено проспективное обсервационное рандомизированное контролируемое исследование. Проанализированы результаты обследования беременных с одноплодной (группа 1, n = 34) и многоплодной бихориальной биамниотической самопроизвольно наступившей беременностью (группа 2, n = 17) и с одноплодной (группа 3, n = 34) и многоплодной бихориальной биамниотической беременностью двойней (группа 4, n = 34), наступившей в результате применения вспомогательных репродуктивных технологий. Исследуемые параметры включали количественное определение антигена ADAMTS-13 (ADAMTS-13:Ag), активности ADAMTS-13 (ADAMTS-13:Ac) и антигена фактора фон Виллебранда (vWF:Ag) методом хромогенного иммуноферментного анализа.</p></sec><sec><title>Результаты</title><p>Результаты. Выявлен прогрессирующий рост значений vWF:Ag пропорционально увеличению срока гестации и снижение уровня ADAMTS-13:Ag со II триместра физиологической неиндуцированной беременности, более выраженные при беременности двойней (р &lt; 0,001). При индуцированной беременности значения vWF:Ag повышались, уровень ADAMTS-13:Ag снижался, начиная с 6-7-й недели гестации (р &lt; 0,001), более выражено при беременности двойней (р &lt; 0,001). Активность ADAMTS-13 при индуцированной одноплодной и многоплодной беременности по триместрам статистически значимо не различалась, но была ниже по сравнению с неиндуцированной беременностью соответствующих сроков. Наиболее выраженное снижение отношения ADAMTS-13:Ag/vWF:Ag наблюдали при многоплодной индуцированной беременности.</p></sec><sec><title>Заключение</title><p>Заключение. Стимуляция суперовуляции и последующий перенос эмбриона в полость матки сопровождается усилением прокоагулянтных свойств сосудистого эндотелия, высвобождением vWF, активирующего тромбоциты и коагуляционный каскад с ранних сроков индуцированной беременности. Гиперреактивность vWF компенсируется расходованием ADAMTS-13, уровень которой снижается критично при беременности двойней, что создает условия для срыва гестационной адаптации системы гемостаза и повышает риск тромботических осложнений и акушерской патологии.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>многоплодная беременность</kwd><kwd>беременность двойней</kwd><kwd>экстракорпоральное оплодотворение</kwd><kwd>ЭКО</kwd><kwd>фактор фон Виллебранда</kwd><kwd>vWF</kwd><kwd>металлопротеиназа ADAMTS-13</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple pregnancy</kwd><kwd>twin pregnancy</kwd><kwd>in vitro fertilization</kwd><kwd>IVF</kwd><kwd>von Willebrand factor</kwd><kwd>vWF</kwd><kwd>metalloproteinase ADAMTS-13</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ren K., Wei Y., Qiao R. et al. Changes in coagulation during twin pregnancies. 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