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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">lvrach</journal-id><journal-title-group><journal-title xml:lang="ru">Лечащий Врач</journal-title><trans-title-group xml:lang="en"><trans-title>Lechaschi Vrach</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1560-5175</issn><issn pub-type="epub">2687-1181</issn><publisher><publisher-name></publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51793/OS.2026.29.2.003</article-id><article-id custom-type="elpub" pub-id-type="custom">lvrach-1540</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="ru"><subject>ЭНДОКРИНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ENDOCRINOLOGY</subject></subj-group></article-categories><title-group><article-title>Особенности метаболизма витамина D при гестационном сахарном диабете</article-title><trans-title-group xml:lang="en"><trans-title>Features of vitamin D metabolism and regulation ofcalcium-phosphate homeostasis during pregnancy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4388-6097</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кацобашвили</surname><given-names>И. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Katsobashvili</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кацобашвили Илана Александровна, аспирант</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p></bio><bio xml:lang="en"><p>Ilana A. Katsobashvili, PhD student</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p></bio><email xlink:type="simple">kacobashvili.ilana@mail.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/0000-0001-6539-466X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пигарова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pigarova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пигарова Екатерина Александровна, д.м.н., эндокринолог, директор института высшего и дополнительного профессионального образования, ведущий научный сотрудник отделения нейроэндокринологии Государственного научного центра Российской Федерации</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p><p>Scopus Author ID 55655098500;</p><p>Researcher ID T-9424-2018</p></bio><bio xml:lang="en"><p>Ekaterina A. Pigarova, Dr. of Sci. (Med.), endocrinologist, Director of the Institute of Higher and Additional Professional Education, Senior Researcher at the Department of Neuroendocrinology of the State Scientific Center of the Russian Federation</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p><p>Scopus Author ID 55655098500;</p><p>Researcher Id T-9424-2018</p></bio><email xlink:type="simple">ekaterina.pigarova@endocrincentr.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/0000-0001-7470-1676</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воротникова</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vorotnikova</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воротникова Светлана Юрьевна, к.м.н., эндокринолог, руководитель центра «Эндокринопатии и беременность»</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p></bio><bio xml:lang="en"><p>Svetlana Yu. Vorotnikova, Cand. of Sci. (Med.), endocrinologist, Head of the Endocrinopathies and Pregnancy Center</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p></bio><email xlink:type="simple">bra_svetix@list.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/0000-0001-5952-5846</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бибик</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bibik</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бибик Екатерина Евгеньевна, к.м.н., эндокринолог, старший научный сотрудник</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p><p>Scopus Author ID 57195679482,</p><p>Researcher ID AAY-3052-2020</p></bio><bio xml:lang="en"><p>Ekaterina E. Bibik, Cand. of Sci. (Med.), endocrinologist, Senior Researcher</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p><p>Scopus Author ID 57195679482,</p><p>Researcher ID AAY-3052-2020</p></bio><email xlink:type="simple">bibikaterina@mail.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/0000-0002-0327-4619</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дзеранова</surname><given-names>Л. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzeranova</surname><given-names>L. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дзеранова Лариса Константиновна, д.м.н., эндокринолог, профессор кафедры эндокринологии Института высшего и дополнительного профессионального образования, главный научный сотрудник отделения нейроэндокринологии</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p></bio><bio xml:lang="en"><p>Larisa K. Dzeranova, Dr. of Sci. (Med.), endocrinologist, Professor of the Department of Endocrinology at the Institute of Higher and Additional Professional Education, Chief Researcher of the Department of Neuroendocrinology</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p></bio><email xlink:type="simple">dzeranovalk@yandex.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/0000-0001-9002-1662</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иоутси</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ioutsi</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иоутси Виталий Алексеевич, к.х.н., доцент, заведующий лабораторией метаболомных и протеомных исследований</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p></bio><bio xml:lang="en"><p>Vitaliy A. Ioutsi, Cand. of Sci. (Chem.), Associate Professor, Head of the Laboratory for Metabolomic and Proteomic Research</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p></bio><email xlink:type="simple">vitalik_org@mail.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/0000-0002-1120-8240</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никанкина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikankina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никанкина Лариса Вячеславовна, к.м.н., врач клинической лабораторной диагностики, заведующая клинико-диагностической лабораторией</p><p>117292, Москва, ул. Дмитрия Ульянова, 11</p></bio><bio xml:lang="en"><p>Larisa V. Nikankina, Cand. of Sci. (Med.), Clinical Pathologist, Head of Clinical Diagnostics Laboratory</p><p>11 Dmitriya Ulyanova str., Moscow, 117292</p></bio><email xlink:type="simple">larisa.nikankina@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр эндокринологии имени академика И. И. Дедова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. I. Dedov Endocrinology Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>15</day><month>02</month><year>2026</year></pub-date><volume>0</volume><issue>2</issue><fpage>21</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кацобашвили И.A., Пигарова Е.А., Воротникова С.Ю., Бибик Е.Е., Дзеранова Л.К., Иоутси В.А., Никанкина Л.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кацобашвили И.A., Пигарова Е.А., Воротникова С.Ю., Бибик Е.Е., Дзеранова Л.К., Иоутси В.А., Никанкина Л.В.</copyright-holder><copyright-holder xml:lang="en">Katsobashvili I.A., Pigarova E.A., Vorotnikova S.Y., Bibik E.E., Dzeranova L.K., Ioutsi V.A., Nikankina L.V.</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://journal.lvrach.ru/jour/article/view/1540">https://journal.lvrach.ru/jour/article/view/1540</self-uri><abstract><sec><title>Введение</title><p>Введение. Витамин D, секостероидный гормон, традиционно известный своей ролью в гомеостазе кальция и фосфора и состоянии скелета, привлекает все больше внимания благодаря своему потенциальному участию в метаболизме глюкозы и регуляции инсулина. Гестационный сахарный диабет — распространенное метаболическое осложнение, характеризующееся нарушением толерантности к глюкозе, которое впервые выявляется во время беременности. Гестационный сахарный диабет обнаруживается у значительной части беременных во всем мире, повышая риск неблагоприятных исходов для матери и новорожденного. Несмотря на растущие доказательства связи между уровнем витамина D и гестационным сахарным диабетом, результаты исследований остаются противоречивыми, особенно в отношении клинической значимости метаболитов витамина D, помимо общего 25(OH)D и динамических изменений метаболизма витамина D на протяжении всей беременности. Это подчеркивает необходимость комплексного метаболического профилирования для лучшего понимания того, как изменения в метаболизме витамина D во время беременности связаны с балансом кальция и фосфора и развитием гестационного сахарного диабета.</p></sec><sec><title>Цель работы</title><p>Цель работы. Изучение особенностей метаболизма витамина D, кальций-фосфорного обмена у беременных и их связи с гестационным сахарным диабетом.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено одноцентровое обсервационное проспективное сравнительное исследование, в рамках которого женщины с гестационным сахарным диабетом (n = 35) были обследованы в динамике во II и III триместрах для оценки ряда показателей метаболизма витамина D методом высокоэффективной жидкостной хроматографии в сочетании с тандемной масс-спектрометрией. Для сравнения сформирована контрольная группа условно здоровых беременных (n = 37), сопоставимых по возрасту (р = 0,501).</p></sec><sec><title>Результаты</title><p>Результаты. Во II и III триместрах беременности у женщин с гестационным сахарным диабетом по сравнению с контрольной группой уровни основных биохимических показателей кальций-фосфорного обмена оставались в пределах нормы. Показатели 25(OH)D3 и других метаболитов витамина D у женщин с гестационным сахарным диабетом незначительно отличались от показателей контрольной группы, при этом статистически значимое снижение отмечено только для 24,25(OH)2D3 во II триместре. Не продемонстрированы различия в соотношениях метаболитов витамина D, отражающих активность основных ферментов. В динамике беременности у женщин с гестационным сахарным диабетом наблюдались снижение альбумина при стабильном альбумин-скорректированном кальции и тенденция к увеличению 3-epi-25(OH)D3 и 24,25(OH)2D3 к III триместру.</p></sec><sec><title>Заключение</title><p>Заключение. Беременные с гестационным сахарным диабетом имеют более низкий уровень 25(OH)D3 во II триместре и сниженные концентрации метаболитов 1,25(OH)2D3 и 24,25(OH)2D3 в III триместре по сравнению с контрольной группой. Соотношения между метаболитами, отражающие активность ферментов метаболизма витамина D, остаются стабильными, что указывает на сохранность ферментативной регуляции. Выявленные различия скорее всего обусловлены исходной обеспеченностью витамином D, а не нарушением ферментативного метаболизма. Таким образом, результаты настоящего исследования и анализ действующих клинических рекомендаций подтверждают целесообразность постоянного приема витамина D, начиная с I триместра беременности и до родов. Эти данные свидетельствуют о значимости ранней (прегравидарной) оценки статуса 25(OH)D3, коррекции его уровня для оптимизации метаболического профиля и снижения риска гестационного сахарного диабета при наступлении беременности.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Gestational diabetes mellitus is a common metabolic complication of pregnancy characterized by impaired glucose tolerance first detected during gestation. Gestational diabetes mellitus affects a substantial proportion of pregnant women worldwide and is associated with an increased risk of adverse maternal and neonatal outcomes. Vitamin D, a secosteroid hormone traditionally known for its role in calcium and phosphorus homeostasis and skeletal health, has attracted growing attention due to its potential involvement in glucose metabolism and insulin regulation. Despite accumulating evidence linking vitamin D status with gestational diabetes mellitus, study results remain inconsistent, particularly regarding the clinical relevance of vitamin D metabolites beyond total 25(OH)D and the dynamic changes in vitamin D metabolism throughout pregnancy. This highlights the need for comprehensive metabolic profiling to better understand how alterations in the vitamin D metabolome during pregnancy are related to calcium-phosphorus balance and the development of gestational diabetes mellitus.</p></sec><sec><title>Objective</title><p>Objective. To investigate the features of vitamin D metabolism and calcium-phosphorus homeostasis in pregnant women and their association with gestational diabetes mellitus.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. A single-center, observational, prospective, comparative study was conducted. Women with gestational diabetes mellitus (n = 35) underwent longitudinal assessment in the second and third trimesters, including evaluation of multiple components of the vitamin D metabolome using high-performance liquid chromatography coupled with tandem mass spectrometry. For comparison, a control group of conditionally healthy pregnant women (n = 37), matched for age, was formed (p = 0.501).</p></sec><sec><title>Results</title><p>Results. In the second and third trimesters of pregnancy, women with gestational diabetes mellitus showed biochemical parameters of calcium-phosphorus metabolism that remained within the reference range and did not differ significantly from the control group. Concentrations of 25(OH)D3 and other vitamin D metabolites in women with gestational diabetes mellitus were largely comparable to controls, with a statistically significant reduction observed only for 24,25(OH)2D3 in the second trimester. No differences were found in the ratios of vitamin D metabolites reflecting the activity of key metabolic enzymes. During pregnancy, women with gestational diabetes mellitus demonstrated a decrease in albumin levels with stable albumin-corrected calcium, as well as a trend toward increased concentrations of 3-epi-25(OH)D3 and 24,25(OH)2D3 by the third trimester.</p></sec><sec><title>Conclusion</title><p>Conclusion. Pregnant women with gestational diabetes mellitus exhibit lower serum 25(OH)D3 concentrations in the second trimester and reduced levels of the metabolites 1,25(OH)2D3 and 24,25(OH)2D3 in the third trimester compared with the control group. Ratios between vitamin D metabolites reflecting the activity of key enzymes involved in vitamin D metabolism remain stable, indicating preserved enzymatic regulation. The observed differences are most likely attributable to baseline vitamin D status rather than to disturbances in enzymatic metabolism. Thus, the results of the present study, together with an analysis of current clinical guidelines, support the rationale for continuous vitamin D supplementation from the first trimester of pregnancy until delivery. These findings highlight the importance of early (preconception) assessment of 25(OH)D3 status and timely correction of its levels to optimize the metabolic profile and reduce the risk of gestational diabetes mellitus during pregnancy.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>витамин D</kwd><kwd>беременность</kwd><kwd>гестационный сахарный диабет</kwd><kwd>метаболиты витамина D</kwd><kwd>1</kwd><kwd>25(OH)2D3</kwd><kwd>3-epi-25(OH)D3</kwd><kwd>24</kwd><kwd>25(OH)2D3</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vitamin D</kwd><kwd>pregnancy</kwd><kwd>vitamin D metabolites</kwd><kwd>1</kwd><kwd>25(OH)2D3</kwd><kwd>3-epi-25(OH)D3</kwd><kwd>24</kwd><kwd>25(OH)2D3</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">Müller M. J., Stokes C. S., Lammert F., et al. Chemotyping the distribution of vitamin D metabolites in human serum. Sci Rep. 2016; 6: 21080. 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