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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="review-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">695984</article-id><article-id pub-id-type="doi">10.18565/aig.2025.124</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Reviews</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Обзоры</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The role of vitamin D in the prevention of pregnancy complications</article-title><trans-title-group xml:lang="ru"><trans-title>Роль витамина D в профилактике осложнений беременности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9053-9453</contrib-id><name-alternatives><name xml:lang="en"><surname>Latfullina</surname><given-names>Raina R.</given-names></name><name xml:lang="ru"><surname>Латфуллина</surname><given-names>Раина Радиковна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD student, Department of Obstetrics and Gynecology, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>аспирант кафедры акушерства и гинекологии Института клинической медицины им. Н.В. Склифосовского</p></bio><email>latfullina1997@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sheshukova</surname><given-names>Natalya A.</given-names></name><name xml:lang="ru"><surname>Шешукова</surname><given-names>Наталия Алексеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Med. Sci., Professor at the Department of Obstetrics and Gynecology, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>д.м.н., профессор кафедры акушерства и гинекологии Института клинической медицины им. Н.В. Склифосовского</p></bio><email>shshukova_n_a@staff.sechenov.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6104-9842</contrib-id><name-alternatives><name xml:lang="en"><surname>Gromova</surname><given-names>Tatiana A.</given-names></name><name xml:lang="ru"><surname>Громова</surname><given-names>Татьяна Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, Teaching Assistant at the Department of Obstetrics and Gynecology, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>к.м.н., ассистент кафедры акушерства и гинекологии Института клинической медицины им. Н.В. Склифосовского</p></bio><email>tgromova928@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-8536-650X</contrib-id><name-alternatives><name xml:lang="en"><surname>Prudnik</surname><given-names>Aleksandra V.</given-names></name><name xml:lang="ru"><surname>Прудник</surname><given-names>Александра Вячеславовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>student, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>студентка Института клинической медицины им. Н.В.Склифосовского</p></bio><email>prudnik-2014@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-5595-8619</contrib-id><name-alternatives><name xml:lang="en"><surname>Yastreb</surname><given-names>Anna V.</given-names></name><name xml:lang="ru"><surname>Ястреб</surname><given-names>Анна Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>student, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>студентка Института клинической медицины им. Н.В.Склифосовского</p></bio><email>Yastrebanna1999@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4591-838X</contrib-id><name-alternatives><name xml:lang="en"><surname>Levakov</surname><given-names>Sergey A.</given-names></name><name xml:lang="ru"><surname>Леваков</surname><given-names>Сергей Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Med. Sci., Professor, Head of the Department of Obstetrics and Gynecology, N.V. Sklifosovsky Institute of Clinical Medicine</p></bio><bio xml:lang="ru"><p>д.м.н. профессор, заведующий кафедрой акушерства и гинекологии Института клинической медицины им. Н.В. Склифосовского</p></bio><email>levakoff@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia (Sechenov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-11-30" publication-format="electronic"><day>30</day><month>11</month><year>2025</year></pub-date><issue>10</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>5</fpage><lpage>11</lpage><history><date date-type="received" iso-8601-date="2025-11-09"><day>09</day><month>11</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-11-09"><day>09</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Bionika Media</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, ООО «Бионика Медиа»</copyright-statement><copyright-year>2025</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/695984">https://journals.eco-vector.com/0300-9092/article/view/695984</self-uri><abstract xml:lang="en"><p>Vitamin D deficiency is a serious problem affecting a significant part of the female population of reproductive age. Vitamin D acting through vitamin D receptors in the organs of the hypothalamic-ovarian-uteroplacental axis participates in the regulation of implantation, placentation, and organogenesis processes. The analysis of recent research data presented in the PubMed, Embase, eLibrary, and RSCI databases indicates a close relationship between vitamin D deficiency and an increased risk of gestational diabetes, preeclampsia, spontaneous miscarriages, preterm birth, and operative delivery. Optimization of the vitamin D level helps to normalize metabolic and immune processes, improve fertility and reduce the frequency of obstetric complications. A significant preventive effect is achieved by ensuring an adequate level of vitamin D at the preconception stage and in early pregnancy. Despite the proven efficacy and safety of vitamin D supplementation, there are still questions about the optimal dosage, the duration of treatment, and the need for regular screening. It is necessary to clarify the algorithms for the correction and prevention of vitamin D deficiency in women of reproductive age.</p> <p><bold>Conclusion:</bold> Vitamin D is an essential nutrient for the normal course of pregnancy and fetal development. Maintaining its adequate level should be considered as one of the key components of preconception care and management of pregnancy, aimed at reducing the risk of obstetric and perinatal complications.</p></abstract><trans-abstract xml:lang="ru"><p>Дефицит витамина D (ВД) представляет актуальную проблему, затрагивающую значительную часть женского населения репродуктивного возраста. ВД, действуя через рецепторы VDR в органах гипоталамо-яичниково-маточно-плацентарной оси, участвует в регуляции процессов имплантации, плацентации и органогенеза. Анализ данных современных исследований, представленных в базах PubMed, Embase, eLibrary и РИНЦ, свидетельствует о тесной связи между дефицитом ВД и повышенным риском гестационного диабета, преэклампсии, самопроизвольных выкидышей, преждевременных родов и оперативного родоразрешения. Оптимизация уровня ВД способствует нормализации метаболических и иммунных процессов, улучшению фертильности и снижению частоты акушерских осложнений. Значимый профилактический эффект достигается при обеспечении адекватного уровня ВД на этапе прегравидарной подготовки и в ранние сроки беременности. Несмотря на доказанную эффективность и безопасность применения ВД, остаются нерешенными вопросы о его оптимальной дозировке, длительности приема и целесообразности рутинного скрининга. Необходимо уточнение алгоритмов коррекции и профилактики гиповитаминоза D у женщин репродуктивного возраста.</p> <p><bold>Заключение:</bold> ВД является важным фактором, обеспечивающим нормальное течение беременности и развитие плода. Поддержание его адекватного уровня следует рассматривать, как один из ключевых компонентов прегравидарной подготовки и ведения беременности, направленный на снижение риска акушерских и перинатальных осложнений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pregnancy</kwd><kwd>miscarriages</kwd><kwd>gestational diabetes</kwd><kwd>vitamin D deficiency</kwd><kwd>cesarean section</kwd><kwd>pregnancy complications</kwd><kwd>preeclampsia</kwd><kwd>preterm birth</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>беременность</kwd><kwd>выкидыши</kwd><kwd>гестационный диабет</kwd><kwd>дефицит витамина D</kwd><kwd>кесарево сечение</kwd><kwd>осложнения беременности</kwd><kwd>преэклампсия</kwd><kwd>преждевременные роды</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Mansur J.L., Oliveri B., Giacoia E., Fusaro D., Costanzo P.R. Vitamin D: before, during and after pregnancy: effect on neonates and children. 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