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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medgen-267</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Полиморфизм генов фолатного цикла у женщин Уральского региона в норме и с привычным невынашиванием беременности</article-title><trans-title-group xml:lang="en"><trans-title>Polymorphism of genes of folate cycle in women of the Ural region and recurrent pregnancy losses</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>Третьякова</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Tretyakova</surname><given-names>T. B.</given-names></name></name-alternatives><email xlink:type="simple">medichkan@mail.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>Демченко</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Demchenko</surname><given-names>N. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Рукосуев</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Rukosuev</surname><given-names>N. E.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НИИ ОММ» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Urals Scientific Research Institute for Maternal and Child Care</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>19</day><month>09</month><year>2017</year></pub-date><volume>16</volume><issue>5</issue><fpage>42</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Третьякова Т.Б., Демченко Н.С., Рукосуев Н.Е., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Третьякова Т.Б., Демченко Н.С., Рукосуев Н.Е.</copyright-holder><copyright-holder xml:lang="en">Tretyakova T.B., Demchenko N.S., Rukosuev N.E.</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://www.medgen-journal.ru/jour/article/view/267">https://www.medgen-journal.ru/jour/article/view/267</self-uri><abstract><p>Тестирование наследственной предрасположенности к невынашиванию беременности является актуальной задачей медико-генетического консультирования в репродуктологии. Одним из факторов невынашивания беременности является дефицит фолиевой кислоты и витаминов группы В в совокупности с полиморфизмом генов фолатного цикла. Цель исследования заключалась в анализе частоты полиморфных аллелей и генотипов генов фолатного цикла у женщин Уральского региона в норме и с привычным невынашиванием первого триместра беременности. Материалы и методы. Основная группа состояла из 53 женщин с привычным невынашиванием беременности первого триместра, группа сравнения - 117 женщин без случаев невынашивания беременности в анамнезе, имеющих одного и более здоровых детей. У всех женщин были проанализированы следующие полиморфизмы: MTHFR 677 С&gt;Т, MTHFR 1298 A&gt;C, MTRR 66 A&gt;G, MTR 2756 A&gt;G. Результаты. В группе женщин с привычным невынашиванием беременности достоверно чаще встречается генотип MTRR 66AА, определяющий синтез активной формы фермента MTRR (OR = 2,44, CL95% 1,06-5,64, p = 0,035) в сравнении с репродуктивно успешными женщинами группы сравнения. Частоты полиморфных аллелей и генотипов по полиморфизмам MTR 2756 A&gt;G, MTHFR 677С&gt;Т и 1298 A&gt;C у женщин Уральского региона находятся в границах общемировых данных и близки к оценкам, показанным для европеоидов, и значительно удалены от монголоидной популяции.</p></abstract><trans-abstract xml:lang="en"><p>Testing for inherited predisposition to miscarriage is an important task of genetic counseling in reproduction. One of the factors of miscarriage is deficiency of folic acid and b vitamins together with the gene polymorphism of the folate cycle. The purpose of the study was to analyze the frequency of polymorphic alleles and genotypes of genes of folate cycle in women of the Ural region and miscarriage the first trimester of pregnancy. Materials and methods. The main group consisted of 53 women with recurrent miscarriage first trimester, the comparison group of 117 women who had no cases of miscarriage in anamnesis, having one or more healthy children. All women were analyzed the following polymorphisms: MTHFR 677 C&gt;T, MTHFR 1298 A&gt;C, MTRR 66 A&gt;G, MTR 2756 A&gt; G. Results. In the group of women with recurrent pregnancy losses significantly more common genotype MTRR 66АА that defines the synthesis of the active form of the enzyme MTRR (OR = 2,44, CL95% from 1.06-5,64, p = 0.035) compared to reproductive to women in the comparison group. Frequency of polymorphic alleles and genotypes of polymorphisms MTR 2756 A&gt;G, MTHFR 677С&gt;T and 1298 A&gt;C in women of the Ural region are within the boundaries of the global data and close to the estimates shown for Caucasians, and far removed from the Mongoloid population.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиморфизм генов фолатного цикла</kwd><kwd>межпопуляционные различия</kwd><kwd>привычное невынашивание беременности</kwd><kwd>gene polymorphism of the folate cycle</kwd><kwd>interpopulation differences</kwd><kwd>habitual noncarrying of pregnancy</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">Белоцерковцева ЛД, Буданов ПВ, Давыдов АИ. и др. Невынашивание беременности: патогенез, диагностика, лечение. Клин. рук. под ред. А.Н. 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