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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">Gynecology</journal-id><journal-title-group><journal-title xml:lang="en">Gynecology</journal-title><trans-title-group xml:lang="ru"><trans-title>Гинекология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2079-5696</issn><issn publication-format="electronic">2079-5831</issn><publisher><publisher-name xml:lang="en">Consilium Medicum</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">106821</article-id><article-id pub-id-type="doi">10.26442/20795696.2022.1.201245</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНАЯ СТАТЬЯ</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 between vitamin D, <italic>VDR</italic> polymorphism and IVF outcomes</article-title><trans-title-group xml:lang="ru"><trans-title>Ассоциация уровня витамина D и полиморфизма гена <italic>VDR</italic> с исходами программ вспомогательных репродуктивных технологий</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Syrkasheva</surname><given-names>Anastasiia G.</given-names></name><name xml:lang="ru"><surname>Сыркашева</surname><given-names>Анастасия Григорьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотр. отд-ния вспомогательных технологий в лечении бесплодия им. проф. Б.В. Леонова</p></bio><email>a_syrkasheva@oparina4.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kindysheva</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Киндышева</surname><given-names>Светлана Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Phys.-Math.)</p></bio><bio xml:lang="ru"><p>канд. физ.-мат. наук, ст. науч. сотр. лаб. протеомики и метаболомики репродукции человека отд. системной биологии в репродукции</p></bio><email>s_kindysheva@oparina4.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Frankevich</surname><given-names>Vladimir E.</given-names></name><name xml:lang="ru"><surname>Франкевич</surname><given-names>Владимир Евгеньевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Phys.-Math.)</p></bio><bio xml:lang="ru"><p>канд. физ.-мат. наук, зав. отд. системной биологии в репродукции</p></bio><email>v_frankevich@oparina4.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Donnikov</surname><given-names>Andrey E.</given-names></name><name xml:lang="ru"><surname>Донников</surname><given-names>Андрей Евгеньевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>канд. мед. наук, зав. лаб. молекулярно-генетических методов</p></bio><email>a_donnikov@oparina4.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgushina</surname><given-names>Nataliia V.</given-names></name><name xml:lang="ru"><surname>Долгушина</surname><given-names>Наталия Витальевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.)</p></bio><bio xml:lang="ru"><p>д-р мед. наук, проф., зам. дир., рук. департамента организации научной деятельности</p></bio><email>n_dolgushina@oparina4.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр акушерства, гинекологии и перинатологии им. акад. В.И. Кулакова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2022</year></pub-date><volume>24</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>30</fpage><lpage>34</lpage><history><date date-type="received" iso-8601-date="2022-04-27"><day>27</day><month>04</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-04-27"><day>27</day><month>04</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://gynecology.orscience.ru/2079-5831/article/view/106821">https://gynecology.orscience.ru/2079-5831/article/view/106821</self-uri><abstract xml:lang="en"><p><bold>Aim. </bold>To analyze the outcomes of assisted reproductive technology (ART) cycles in patients with different levels of vitamin D.</p> <p><bold>Materials and methods. </bold>The study included 100 infertile patients who applied for ART. Vitamin D levels were determined by mass spectrometry. The<italic> VDR </italic>polymorphism was evaluated using real-time PCR.</p> <p><bold>Results. </bold>50% of patients (n=50) had a sufficient level of vitamin D (group 3), 36% of patients (n=36) had an insufficient level of vitamin D (group 2), 14% of patients (n=14) had a deficiency of vitamin D (group 1). The level of vitamin D was not associated neither with baseline patients characteristics nor with embryological stage of the cycle. The clinical pregnancy rate was lower in the group 1 (vitamin D deficiency), but the difference was not significant. There was a trend to an increase of miscarriage rate in the groups of patients with vitamin D insufficiency and deficiency: 66.7% in group 1, 26.3% in group 2, and 13.6% in group 3. The live birth rate was higher in the groups of patients with normal and insufficient levels of vitamin D compared with the group of vitamin D deficiency: 46.0 and 38.9% compared to 7.1%, <italic>p=</italic>0.0821. In multivariate analysis clinical pregnancy rate was influenced by vitamin D deficiency and the genetic characteristics of the<italic> VDR </italic>gene: the presence of the G allele (FOKI-rs2228570).</p> <p><bold>Conclusion. </bold>The vitamin D deficiency impairs the effectiveness of ART cycles.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель. </bold>Проанализировать исходы циклов вспомогательных репродуктивных технологий (ВРТ) у пациенток с разным уровнем витамина D.</p> <p><bold>Материалы и методы.</bold> В исследование включены 100 пациенток с бесплодием, обратившихся для проведения ВРТ. Уровень витамина D определяли методом масс-спектрометрии. Всем пациенткам проводили анализ аллельных вариантов гена<italic> VDR </italic>(FOKI-rs2228570, BsmI-rs1544410, TaqI-rs731236).</p> <p><bold>Результаты. </bold>Среди изученных пациенток 50% (n=50) имели достаточный уровень витамина D (группа 3), 36% (n=36) имели недостаточный уровень витамина D (группа 2), 14% (n=14) имели дефицит витамина D (группа 1). Уровень витамина D не связан с клинико-анамнестическими особенностями пациенток и с параметрами эмбриологического этапа цикла ВРТ. Частота наступления клинической беременности была минимальной в группе пациенток с дефицитом витамина D, однако различия не были значимыми. При этом наблюдали тенденцию к повышению частоты ранних репродуктивных потерь в группах пациенток с недостаточностью и дефицитом витамина D: 66,7% в группе 1, 26,3% в группе 2 и 13,6% в группе 3. В результате частота живорождения погранично значимо выше в группах пациенток с нормальным уровнем витамина D и с недостаточностью по сравнению с группой дефицита витамина D: 46,0 и 38,9% по сравнению с 7,1%; <italic>р=</italic>0,0821. При проведении многофакторного анализа на частоту наступления беременности влияли дефицит витамина D и генетические особенности гена<italic> VDR</italic>: наличие аллеля G (FOKI-rs2228570).</p> <p><bold>Заключение. </bold>Дефицит витамина D снижает эффективность циклов ВРТ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>assisted reproductive technology</kwd><kwd>in vitro fertilization</kwd><kwd>pregnancy</kwd><kwd>oocyte quality</kwd><kwd>embryo quality</kwd><kwd>vitamin D</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вспомогательные репродуктивные технологии</kwd><kwd>беременность</kwd><kwd>качество ооцитов</kwd><kwd>качество эмбрионов</kwd><kwd>витамин D</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Holick MF. The vitamin D deficiency pandemic: Approaches for diagnosis, treatment and prevention. 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