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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">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2020-3-63-68</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-1367</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>ORIGINAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ И МЕТОДИКИ</subject></subj-group></article-categories><title-group><article-title>Vitamin D status in patients with multiple sclerosis: an association with insolation, disease course, and HLA-DRB1 gene polymorphism</article-title><trans-title-group xml:lang="ru"><trans-title>Статус витамина D у больных рассеянным склерозом: связь с инсоляцией, течением болезни и полиморфизмом гена HLA-DRB1</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смагина</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smagina</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смагина Инна Вадимовна.</p><p>656038, Барнаул, проспект Ленина, 40.</p></bio><bio xml:lang="en"><p>Inna Vadimovna Smagina.</p><p>40, Lenin Prospect, Barnaul 656038.</p></bio><email xlink:type="simple">siv7000@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лунев</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lunev</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>656038, Барнаул, проспект Ленина, 40.</p></bio><bio xml:lang="en"><p>40, Lenin Prospect, Barnaul 656038.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ельчанинова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Elchaninova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>656038, Барнаул, проспект Ленина, 40.</p></bio><bio xml:lang="en"><p>40, Lenin Prospect, Barnaul 656038.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Алтайский государственный медицинский университет Миниздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Altai State Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>06</month><year>2020</year></pub-date><volume>12</volume><issue>3</issue><fpage>63</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Smagina I.V., Lunev K.V., Elchaninova S.A., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Смагина И.В., Лунев К.В., Ельчанинова С.А.</copyright-holder><copyright-holder xml:lang="en">Smagina I.V., Lunev K.V., Elchaninova S.A.</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://nnp.ima-press.net/nnp/article/view/1367">https://nnp.ima-press.net/nnp/article/view/1367</self-uri><abstract><p>Recent systematic reviews and a meta-analysis have shown that there is insufficient evidence on the relationship of multiple sclerosis (MS) to vitamin D supplementation</p><sec><title>Objective</title><p>Objective: to assess the relationship of vitamin D status in MS patients to insolation, disease course, and HLA-DRB1 gene polymorphism. Patients and methods. The one-stage study enrolled 90 patients with relapsing-remitting MS (a study group) and 87 volunteers without this disease (a control group). The enrolled were born and live in the Altai Territory of the Russian Federation. The serum level of 25(OH)D was measured by enzyme immunoassay.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. 25(OH)D &lt;30 ng/ml was more common in patients with MS than that in the controls. There were no intergroup differences in the time spent in the sun for 6 months before inclusion in the study (p=0.020). The level of 25(OH)D was higher in the high insolation period from April to September than that in the low insolation period from October to March in both patients with MS (p&lt;0.005) and controls (p&lt;0.001). There was no association of 25(OH)D levels with urban and rural residence, gender, age at MS onset, severity of neurological disorders, their progression rate, and MS risk alleles within the HLA-DRB1 gene (03, 13, 15).</p></sec><sec><title>Conclusion</title><p>Conclusion. Vitamin D deficiency is more common in patients with MS than in those without this disease. This is unlikely to be due to the differences in the radiation received from the sun. The final conclusion on the relationship of vitamin D to MS can be made after obtaining the results of a prospective follow-up.</p></sec></abstract><trans-abstract xml:lang="ru"><p>Недавние систематические обзоры и метаанализ продемонстрировали, что данных для доказательства взаимосвязи рассеянного склероза (РС) и обеспеченности витамином D недостаточно.</p><p>Цель исследования — оценка связи статуса витамина D у больных РС с инсоляцией, течением заболевания и полиморфизмом гена HLA-DRB1.</p><sec><title>Пациенты и методы</title><p>Пациенты и методы. В одномоментном исследовании участвовали родившиеся и проживающие в Алтайском крае Российской Федерации 90 больных ремиттирующим РС (основная группа) и 87 добровольцев, не страдающих РС (контрольная группа). Уровень 25(OH)D в сыворотке крови определяли иммуноферментным методом.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Уровень 25(OH)D &lt;30 нг/мл чаще встречался у больных РС по сравнению с контролем. Отсутствовали межгрупповые различия по времени пребывания на солнце на протяжении 6 мес до включения в исследование (р=0,020). Уровень 25(OH)D был выше в период высокой инсоляции (с апреля по сентябрь) по сравнению с периодом низкой инсоляции (с октября по март) как у больных РС (р&lt;0,005), так и в контрольной группе (р&lt;0,001). Не выявлено связи уровня 25(OH)D с проживанием в городе или селе, полом, возрастом дебюта РС, выраженностью неврологических расстройств, скоростью их прогрессирования, а также с аллелями риска РС гена HLA-DRB1 (03, 13, 15).</p></sec><sec><title>Заключение</title><p>Заключение. У больных РС чаще встречается недостаточность витамина D по сравнению с лицами, не страдающими этим заболеванием. Маловероятно, что это обусловлено различиями в получаемой солнечной радиации. Окончательное заключение о связи витамина D с течением РС может быть сделано после появления результатов проспективного наблюдения.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рассеянный склероз</kwd><kwd>витамин D</kwd><kwd>инсоляция</kwd><kwd>HLA-DRB1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple sclerosis</kwd><kwd>vitamin D</kwd><kwd>insolation</kwd><kwd>HLA-DRB1</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">Шмидт ТЕ, Яхно НН. Рассеянный склероз. Москва: МЕДпресс-информ; 2016.</mixed-citation><mixed-citation xml:lang="en">Shmidt TE, Jahno NN. Rasseyannyi skleroz [Multiple sclerosis]. Moscow: MEDpressinform; 2016.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">International Multiple Sclerosis Genetics Consortium. 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