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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">454</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2015-11-4-18-24</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. ORIGINAL ARTICLE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. ОРИГИНАЛЬНАЯ СТАТЬЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Metformin in the treatment of breast cancer among patients with metabolic syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Применение метформина в лечении рака молочной железы у больных с метаболическим синдромом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lyubota</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Любота</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lyubota@ukr.net</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A. A. Bogomolets National Medical University</institution></aff><aff><institution xml:lang="ru">Национальный медицинский университет им. А. А. Богомольца</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">13 T. Shevchenko Byl’var, Kiev, 01601, Ukraine</institution></aff><aff><institution xml:lang="ru">Украина, 01601, Киев, бульвар Т. Шевченко, 13</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-11-26" publication-format="electronic"><day>26</day><month>11</month><year>2015</year></pub-date><volume>11</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>18</fpage><lpage>24</lpage><history><date date-type="received" iso-8601-date="2015-11-25"><day>25</day><month>11</month><year>2015</year></date><date date-type="accepted" iso-8601-date="2015-11-25"><day>25</day><month>11</month><year>2015</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/454">https://ojrs.abvpress.ru/ojrs/article/view/454</self-uri><abstract xml:lang="en"><p>Breast cancer (BC) is one of the most common cancer among women worldwide. In 2005, the International Diabetes Federation (International Diabetes Federation) declared metabolic syndrome is one of the main problems of modern medicine, as it increases the total mortality and the prevalence has reached pandemic levels. Several studies have shown that the metabolic disorders associated with metabolic syndrome, affect the carcinogenesis of BC. Improving the efficiency of chemotherapy in patients with type 2 diabetes taking biguanides compared with patients who used other hypoglycemic agents, it has become a premise for the study of the possible antitumor mechanism of action of metformin. Therefore, adequate correction of metabolic disturbances caused by metabolic syndrome may be an additional area of special treatment, as well as a measure of primary and secondary prevention of BC. Improving the efficiency of tumor therapy in patientswith type 2 diabetes taking biguanides compared with patients who used other hypoglycemic agents, it has become a prerequisite for the study of the possible antitumor mechanism of action of metformin. This paper presents the results of studying the effect of metformin on the effectiveness of neoadjuvant systemic therapy for BC patients with the metabolic syndrome.</p></abstract><trans-abstract xml:lang="ru"><p>Рак молочной железы (РМЖ) является одним из самых распространенных онкологических заболеваний среди женщин во всем мире. В 2005 г. Международная федерация диабета (International Diabetes Federation) назвала метаболический синдром одной из главных проблем современной медицины, так как он увеличивает общую смертность населения, а распространенность его доcтигла масштабов пандемии. В ряде исследований доказано, что нарушения, ассоциированные с метаболическим синдромом, влияют на канцерогенез РМЖ. У больных с метаболическим синдромом зарегистрировано снижение чувствительности опухоли к системной противоопухолевой терапии, увеличение частоты послеоперационных осложнений и уменьшение показателей общей и безрецидивной выживаемости. Поэтому адекватная коррекция нарушений обменных процессов, вызванных метаболическим синдромом, может быть дополнительным направлением специального лечения, а также мерой первичной и вторичной профилактики РМЖ. Повышение эффективности противоопухолевой терапии у пациентов с сахарным диабетом 2-го типа, принимающих бигуаниды, по сравнению с больными, которые применяют другие гипогликемические средства, стало предпосылкой для изучения возможных противоопухолевых механизмов действия метформина. В этой работе представлены результаты изучения влияния метформина на эффективность неоадъювантной системной терапии РМЖ у больных с метаболическим синдромом.</p></trans-abstract><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>metabolic syndrome</kwd><kwd>obesity</kwd><kwd>biguanides</kwd><kwd>metformin</kwd><kwd>neoadjuvant systemic antitumor therapy</kwd><kwd>hormonal therapy</kwd><kwd>chemotherapy</kwd><kwd>efficiency</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>метаболический синдром</kwd><kwd>ожирение</kwd><kwd>бигуаниды</kwd><kwd>метформин</kwd><kwd>неоадъювантная системная противоопухолевая терапия</kwd><kwd>гормонотерапия</kwd><kwd>химиотерапия</kwd><kwd>эффективность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1. Ferlay J., Soerjomataram I., Ervik M. et al. 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