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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">farmaec</journal-id><journal-title-group><journal-title xml:lang="en">FARMAKOEKONOMIKA. Modern Pharmacoeconomics and Pharmacoepidemiology</journal-title><trans-title-group xml:lang="ru"><trans-title>ФАРМАКОЭКОНОМИКА. Современная фармакоэкономика и фармакоэпидемиология</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2070-4909</issn><issn pub-type="epub">2070-4933</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2070-4909/farmakoekonomika.2022.152</article-id><article-id custom-type="elpub" pub-id-type="custom">farmaec-737</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 ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ПУБЛИКАЦИИ</subject></subj-group></article-categories><title-group><article-title>Concentration of vitamin D metabolite – 25(OH)D3 as a predictor of breast cancer progression</article-title><trans-title-group xml:lang="ru"><trans-title>Концентрация метаболита витамина D – 25(OH)D3 как предиктор прогрессирования рака молочной железы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6207-5575</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фролова</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Frolova</surname><given-names>D. Е.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фролова Дарья Евгеньевна – ассистент кафедры онкологии, акушерства и гинекологии</p><p>Шереметьевский пр-т, д. 8, Иваново 153012</p></bio><bio xml:lang="en"><p>Daria Е. Frolova – МD, Assistant Professor, Chair of Oncology, Obstetrics and Gynecology</p><p>8 Sheremetyevskiy Ave., Ivanovo 153012</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4581-8610</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лапочкина</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Lapochkina</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лапочкина Нина Павловна – д.м.н., профессор, заведующая кафедрой онкологии, акушерства и гинекологии</p><p>Шереметьевский пр-т, д. 8, Иваново 153012</p></bio><bio xml:lang="en"><p>Nina P. Lapochkina – Dr. Med. Sc., Professor, Chief of Chair of Oncology, Obstetrics and Gynecology</p><p>8 Sheremetyevskiy Ave., Ivanovo 153012</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7663-710X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Громова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gromova</surname><given-names>О. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Громова Ольга Алексеевна – д.м.н., профессор, ведущий научный сотрудник, научный руководитель Института фармакоинформатики</p><p>ул. Вавилова, д. 44, корп. 2, Москва 119333</p><p>WoS ResearcherID: J-4946-2017</p><p>Scopus Author ID: 7003589812</p></bio><bio xml:lang="en"><p>Olga A. Gromova – Dr. Med. Sc., Professor, Leading Researcher, Research Supervisor, Institute of Pharmacoinformatics</p><p>WoS ResearcherID: J-4946-2017</p><p>Scopus Author ID: 7003589812</p><p>4 Vavilov Str., Moscow 119333</p></bio><email xlink:type="simple">unesco.gromova@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/0000-0002-2659-7998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Торшин</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Torshin</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Торшин Иван Юрьевич – к.ф-м.н., к.х.н., старший научный сотрудник Института фармакоинформатики</p><p>ул. Вавилова, д. 44, корп. 2, Москва 119333</p><p>WoS ResearcherID: C-7683-2018</p><p>Scopus Author ID: 7003300274</p></bio><bio xml:lang="en"><p>Ivan Yu. Torshin – PhD (Phys. Math.), PhD (Chem.), Senior Researcher, Institute of Pharmacoinformatics</p><p>WoS ResearcherID: C-7683-2018</p><p>Scopus Author ID: 7003300274</p><p>4 Vavilov Str., Moscow 119333</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное образовательное учреждение высшего образования «Ивановская государственная медицинская академия» Министерства здравоохранения Российской Федерации<country>Россия</country></aff><aff xml:lang="en">Ivanovo State Medical Academy<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГУ «Федеральный исследовательский центр “Информатика и управление” Российской академии наук»<country>Россия</country></aff><aff xml:lang="en">Federal Research Center “Informatics and Management”, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>08</day><month>01</month><year>2023</year></pub-date><volume>15</volume><issue>4</issue><fpage>472</fpage><lpage>477</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Frolova D.Е., Lapochkina N.P., Gromova О.А., Torshin I.Y., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Фролова Д.Е., Лапочкина Н.П., Громова О.А., Торшин И.Ю.</copyright-holder><copyright-holder xml:lang="en">Frolova D.Е., Lapochkina N.P., Gromova О.А., Torshin I.Y.</copyright-holder><license 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://www.pharmacoeconomics.ru/jour/article/view/737">https://www.pharmacoeconomics.ru/jour/article/view/737</self-uri><abstract><sec><title>Background</title><p>Background. Prediction of breast cancer (BC) progression is important for the timely correction of patient therapy.</p></sec><sec><title>Objective</title><p>Objective: to assess a relationship between BC progression and degree of vitamin D deficiency.</p></sec><sec><title>Material and methods</title><p>Material and methods. A retrospective controlled study was performed. The results of examining 67 women aged 29–48 years with histologically verified BC and vitamin D deficiency are presented. All patients were divided into two groups: the main group – 34 women administered with vitamin D, comparison group – 33 patients not taking vitamin D.</p></sec><sec><title>Results</title><p>Results. It was shown that 25(OH)D3 level less than 18.9 ng/ml was significantly associated with prominent disease progression, regardless of the tumor molecular subtype. Additional criteria were developed allowing to predict BC progression.</p></sec><sec><title>Conclusion</title><p>Conclusion. In order to detect secondary changes (distant metastases in ВС patients) and improve patient monitoring, it is recommended to use additional diagnostic methods and determine the intermediate metabolite of vitamin D – 25(OH)D3 in peripheral blood.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Актуальность</title><p>Актуальность. Прогноз прогрессирования рака молочной железы (РМЖ) важен для своевременной коррекции терапии пациенток.</p></sec><sec><title>Цель</title><p>Цель: оценить влияние дефицита метаболитa витамина D3 – 25(OH)D3 в сыворотке крови на прогрессирование РМЖ.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Выполнено ретроспективное контролируемое исследование. Представлены результаты обследования 67 женщин 29–48 лет с гистологически верифицированным РМЖ и дефицитом витамина D. Пациентки разделены на две группы: основная группа – 34 женщины, получающие препарат витамина D, группа сравнения – 33 пациентки, не принимающие препарат витамина D.</p></sec><sec><title>Результаты</title><p>Результаты. Показано, что уровень 25(OH)D3 менее 18,9 нг/мл достоверно ассоциирован с выраженной прогрессией РМЖ, независимо от молекулярного подтипа опухоли. Разработаны дополнительные критерии, позволяющие прогнозировать прогрессирование РМЖ.</p></sec><sec><title>Заключение</title><p>Заключение. Для выявления вторичных изменений (наличие отдаленных метастазов у больных РМЖ) и улучшения наблюдения за пациентками рекомендуется привлекать дополнительные методы диагностики и определять промежуточный метаболит витамина D – 25(OH)D3 в периферической крови.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Витамин D</kwd><kwd>промежуточный метаболит витамина D</kwd><kwd>25(OH)D3</kwd><kwd>рак молочной железы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Vitamin D</kwd><kwd>vitamin D intermediate metabolite</kwd><kwd>25(OH)D3</kwd><kwd>breast cancer</kwd><kwd>BC</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">Mattiuzzi C., Lippi G. Current cancer epidemiology. J Epidemiol Glob Health. 2019; 9 (4): 217–22. https://doi.org/10.2991/jegh.k.191008.001.</mixed-citation><mixed-citation xml:lang="en">Mattiuzzi C., Lippi G. Current cancer epidemiology. 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