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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1814-6023-2022-19-4-424-432</article-id><article-id custom-type="elpub" pub-id-type="custom">vestim-881</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group></article-categories><title-group><article-title>Обеспеченность населения витамином D в период пандемии COVID-19: опыт России и Беларуси</article-title><trans-title-group xml:lang="en"><trans-title>Vitamin D status during the COVID-19 pandemic: the experience of Russia and Belarus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1547-0123</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каронова</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Karonova</surname><given-names>T. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каронова Татьяна Леонидовна – доктор медицинских наук, доцент.</p><p>пр. Пархоменко, 15, 194021, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Tatiana L. Karonova – D. Sc. (Med.), Associate Professor, Almazov National Medical Research Centre.</p><p>15, Parkhomenko Ave., 194021, St. Petersburg</p></bio><email xlink:type="simple">karonova@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/0000-0003-4281-0880</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Руденко</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rudenco</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руденко Елена Викторовна – кандидат медицинских наук, доцент.</p><p>ул. П. Бровки, 3/3, 220013, Минск</p></bio><bio xml:lang="en"><p>Elena V. Rudenco – Ph. D. (Med.), Associate Professor, Belarusian Medical Academy of Postgraduate Education.</p><p>3/3, P. Brovka Str., 220013, Minsk</p></bio><email xlink:type="simple">alenka.v.ru@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1383-2474</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Радаева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Radaeva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Радаева Ольга Александровна – кандидат медицинских наук, доцент.</p><p>ул. Большевистская, 68, 430005, Саранск</p></bio><bio xml:lang="en"><p>Olga A. Radaeva – Ph. D. (Med.), Associate Professor, Ogarev Mordovia State University.</p><p>68, Bol’shevistskaya Str., 430005, Saransk</p></bio><email xlink:type="simple">vtlbwbyf_79@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4878-6909</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черникова</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernikova</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черникова Алена Тимуровна – младший научный сотрудник.</p><p>пр. Пархоменко, 15, 194021, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Alena T. Chernikova – Junior Researcher, Almazov National Medical Research Centre.</p><p>15, Parkhomenko Ave., 194021, St. Petersburg</p></bio><email xlink:type="simple">arabicaa@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0651-7110</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Головатюк</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Golovatyuk</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Головатюк Ксения Андреевна – младший научный сотрудник.</p><p>пр. Пархоменко, 15, 194021, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ksenia A. Golovatyuk – Junior Researcher, Almazov National Medical Research Centre.</p><p>15, Parkhomenko Ave., 194021, St. Petersburg</p></bio><email xlink:type="simple">ksgolovatiuk@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2929-0980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шляхто</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shlyakhto</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шляхто Евгений Владимирович – академик, доктор медицинских наук.</p><p>ул. Аккуратова, 2, 197341, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Evgeny V. Shlyakhto – Academician, D. Sc. (Med.), Almazov National Medical Research Centre.</p><p>2, Akkuratov Str., 197341, St. Petersburg</p></bio><email xlink:type="simple">shlyakhto_ev@almazovcentre.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 им. В.А. Алмазова</institution></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусская медицинская академия последипломного образования</institution></aff><aff xml:lang="en"><institution>Belarusian Medical Academy of Postgraduate Education</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Мордовский государственный университет им. Н.П. Огарева</institution></aff><aff xml:lang="en"><institution>Ogarev Mordovia State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>29</day><month>11</month><year>2022</year></pub-date><volume>19</volume><issue>4</issue><fpage>424</fpage><lpage>432</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Каронова Т.Л., Руденко Е.В., Радаева О.А., Черникова А.Т., Головатюк К.А., Шляхто Е.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Каронова Т.Л., Руденко Е.В., Радаева О.А., Черникова А.Т., Головатюк К.А., Шляхто Е.В.</copyright-holder><copyright-holder xml:lang="en">Karonova T.L., Rudenco E.V., Radaeva O.A., Chernikova A.T., Golovatyuk K.A., Shlyakhto E.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://vestimed.belnauka.by/jour/article/view/881">https://vestimed.belnauka.by/jour/article/view/881</self-uri><abstract><p>В период пандемии COVID-19 сохраняется высокая распространенность дефицита и недостаточности витамина D. Так, исследования, выполненные в Российской Федерации и Республике Беларусь в течение последних 3 лет, показали преобладание дефицита и недостаточности витамина D в популяции независимо от пола обследованных лиц, географического положения региона и сезона года.</p><p>Учитывая известные иммуномодулирующие свойства 25(ОН)D в сыворотке крови, целью настоящего обзора было обсуждение накопленных в мире, а также в России и Беларуси данных о возможном вкладе дефицита витамина D      в инфицированность, течение и прогноз новой коронавирусной инфекции, а также об эффективности терапии колекальциферолом в профилактике и лечении заболевания. Большинство исследований указывают на наличие отрицательной связи между концентрацией 25(OH)D в сыворотке крови и тяжестью COVID-19 и/или смертностью. Ранее было показано, что уровень 25(ОН)D менее 11,4 нг/мл ассоциирован с увеличением риска летальности от коронавирусной инфекции. В то же время данные об использовании терапии колекальциферолом с целью профилактики и лечения COVID-19 противоречивы. Проведенные в России и Республике Беларусь интервенционные исследования малочисленны, однако их результаты указывают на возможную пользу терапии колекальциферолом, что позволяет рассматривать ее в качестве дополнения к основным методам лечения COVID-19.</p></abstract><trans-abstract xml:lang="en"><p>During the COVID-19 pandemic, a high prevalence of vitamin D deficiency and insufficiency remains. Thus, the studies carried out on the territory of the Russian Federation (RF) and the Republic of Belarus over the last 3 years have shown the prevalence of vitamin D deficiency and insufficiency in the population, regardless of the gender of examined persons, the geographic location and the season of the year. Taking into account the known immunomodulatory functions of serum 25(OH)D, the aim of this review was to assess the data that were accumulated in the world, Russia and Belarus and were concerned with a possible contribution of vitamin D deficiency to COVID-19 infection, course and prognosis, as well as with the role of cholecalciferol therapy in prevention and treatment of the disease. Most of the studies demonstrate a negative association between the serum 25(OH)D level and COVID-19 severity and/or mortality. Previously, it has been shown that the serum 25(OH)D level less than 11.4 ng/ml is associated with an increased risk of COVID-19 mortality. At the same time, the results of the studies using cholecalciferol therapy for COVID-19 prevention and treatment are conflicting. Intervention  studies in the Russian Federation and the Republic of Belarus are scanty; however, the available data indicate a possible  benefit of therapy, which allows it to be considered as an addition to the main methods of treating COVID-19.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дефицит витамина D</kwd><kwd>25(OH)D</kwd><kwd>коронавирусная инфекция</kwd><kwd>SARS-CoV-2</kwd><kwd>COVID-19</kwd><kwd>колекальциферол</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vitamin D deficiency</kwd><kwd>25(OH)D</kwd><kwd>SARS-CoV-2</kwd><kwd>COVID-19</kwd><kwd>coronavirus infection</kwd><kwd>cholecalciferol</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Министерства науки и высшего образования Российской Федерации (Соглашение № 075-15-2022-301 от 20.04.2022).</funding-statement><funding-statement xml:lang="en">The study was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2022-301 dated April 20, 2022).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">National Library of Medicine [Electronic resource]. – Mode of access: https://pubmed.ncbi.nlm.nih.gov/?term=covid-19%3B+vitamin+D&amp;filter=years.2020-2021&amp;timeline=expanded&amp;size=100/. – Date of access: 30.04.2022.</mixed-citation><mixed-citation xml:lang="en">National Library of Medicine. 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