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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2018-33-4-76-81</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-614</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>ПОЛИМОРФИЗМ С677Т В ГЕНЕ МЕТИЛЕНТЕТРАГИДРОФОЛАТРЕДУКТАЗЫ У ПАЦИЕНТОВ С ИНФАРКТОМ МИОКАРДА C ПОДЪЕМОМ СЕГМЕНТА ST</article-title><trans-title-group xml:lang="en"><trans-title>C677T POLYMORPHISM IN THE METHYLENETETRAHYDROFOLATE REDUCTASE GENE IN PATIENTS WITH ST-SEGMENT ELEVATION MYOCARDIAL INFARCTION</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>Митьковская</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitkovskaya</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р мед. наук, профессор, заведующая кафедрой кардиологии и внутренних болезней</p><p>220116, Республика Беларусь, Минск, пр. Дзержинского, 83</p></bio><bio xml:lang="en"><p>M.D., Dr. Sci. (Med.), Professor, Head of the Department of Cardiology and Internal Diseases</p><p>83, Dzerzhinski ave., Minsk, 220116, Republic of Belarus</p></bio><email xlink:type="simple">mitkovskaya1@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>Балыш</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Balysh</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент кафедры кардиологии и внутренних болезней</p><p>220116, Республика Беларусь, Минск, пр. Дзержинского, 83</p></bio><bio xml:lang="en"><p>M.D., Cand. Sci. (Med.), Associate Professor of the Department of Cardiology and Internal Diseases</p><p>83, Dzerzhinski ave., Minsk, 220116, Republic of Belarus</p></bio><email xlink:type="simple">elenashut@tut.by</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>Гусина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gusina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, ведущий научный сотрудник лаборатории цитогенетических, молекулярно-генетических и морфологических исследований</p><p>220053, Республика Беларусь, г. Минск, ул. Орловская, 66</p></bio><bio xml:lang="en"><p>M.D., Cand. Sci. (Med.), Leading Researcher of the Laboratory of Cytogenetic, Molecular-Genetic and Morphological Studies</p><p>66, Orlovskaya str., Minsk, 220053, Republic of Belarus</p></bio><email xlink:type="simple">stowpm2001@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Статкевич</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Statkevich</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, доцент, доцент кафедры кардиологии и внутренних болезней</p><p>220116, Республика Беларусь, Минск, пр. Дзержинского, 83</p></bio><bio xml:lang="en"><p>MD, PHD, Associate Professor of the Department of Cardiology and Internal Diseases</p><p>83, Dzerzhinski ave., Minsk, 220116, Republic of Belarus</p><p> </p></bio><email xlink:type="simple">forget-me@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Учреждение образования «Белорусский государственный медицинский университет»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственное учреждение «Республиканский научно-практический центр «Мать и дитя»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>The Mother and Child National Research Center</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>13</day><month>02</month><year>2019</year></pub-date><volume>33</volume><issue>4</issue><fpage>76</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Митьковская Н.П., Балыш Е.М., Гусина А.А., Статкевич Т.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Митьковская Н.П., Балыш Е.М., Гусина А.А., Статкевич Т.В.</copyright-holder><copyright-holder xml:lang="en">Mitkovskaya N.P., Balysh E.M., Gusina A.A., Statkevich T.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://www.sibjcem.ru/jour/article/view/614">https://www.sibjcem.ru/jour/article/view/614</self-uri><abstract><p>Цель: выявить клинико-лабораторные особенности течения заболевания у пациентов с инфарктом миокарда c подъемом сегмента ST и носительством полиморфизма С677Т в гене метилентетрагидрофолатредуктазы.Материал и методы. Обследован 81 пациент с инфарктом миокарда c подъемом сегмента ST. Использованы клинические, лабораторные, инструментальные и статистические методы исследования.Заключение. Среди пациентов с инфарктом миокарда c подъемом сегмента ST удельный вес лиц с гомозиготным носительством полиморфных аллелей в гене МТГФР составил 30% испытуемых (генотип 677СС), с гетерозиготным носительством — 58,02% (генотип 677СТ). Для пациентов с гомозиготным носительством полиморфных аллелей в гене MTHFR были характерны более высокие значения уровня Big эндотелина-1 и гомоцистеина в сыворотке крови в сравнении с лицами с генотипом 677СС — 10,7 (4,5–14,5) пг/мл, 27 (20–28) мкмоль/л и 2,7 (2,2–3,8) пг/мл, 17 (14–20) мкмоль/л соответственно, р&lt;0,05. Выявлена положительная умеренной силы корреляция между носительством полиморфных аллелей MTHFR C677T и уровнями гомоцистеина (r=0,42, р&lt;0,05) и Big эндотелина-1 (r=0,45, р&lt;0,05) в исследуемой когорте. У пациентов с гомозиготным носительством полиморфных аллелей в гене МТГФР значимо чаще инфаркт миокарда осложнялся развитием рецидивирующих коронарных событий в сравнении с группами с гетерозиготным носительством и отсутствием полиморфных аллелей в данном гене — 88,9% (n=8) против 42,55% (n=20), χ2=6,5, р&lt;0,05 и 28% (n=7), χ2=10,0, р&lt;0,01 соответственно.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to identify clinical and laboratory features of the disease in patients with myocardial infarction with ST-segment elevation and C677T polymorphism in the methylenetetrahydrofolate reductase gene.Material and Methods. A total of 81 patients with ST-segment elevation myocardial infarction were examined. Clinical, laboratory, instrumental, and statistical methods were used.Conclusion. Among patients with ST-segment elevation myocardial infarction, the proportion of persons with homozygous carriership of polymorphic alleles in the MTHFR gene was 30% (genotype 677СС); and 58.02% (genotype 677СT) of patients were heterozygous carriers. Patients with homozygous carriership of polymorphic alleles in the MTHFR gene were characterized by higher values of Big endothelin-1 and homocysteine in serum compared with persons with genotype 677СС: 10.7 (4.5–14.5) pg/mL, 27 (20–28) μmol/L, and 2.7 (2.2–3.8) pg/mL, and 17 (14–20) μmol/L, respectively, p&lt;0.05. A positive moderate force correlation was found between the carriership of polymorphic alleles MTHFR C677T and homocysteine levels (r=0.42, p&lt;0.05) and Big endothelin-1 (r=0.45, p&lt;0.05) in the cohort under study. In patients with homozygous carriership of polymorphic alleles in the MTHFR gene, myocardial infarction was significantly more often complicated by the development of recurrent coronary events in comparison with groups with heterozygous carriership and the absence of polymorphic alleles in this gene: 88.9% (n=8) versus 42.55% (n=20), χ2=6.5, p&lt;0.05 and 28% (n=7), χ2=10.0, p&lt;0.01 respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метилентетрагидрофолатредуктаза</kwd><kwd>генетический полиморфизм</kwd><kwd>гомоцистеин</kwd><kwd>инфаркт миокарда c подъемом сегмента ST</kwd></kwd-group><kwd-group xml:lang="en"><kwd>methylenetetrahydrofolate reductase</kwd><kwd>gene polymorphism</kwd><kwd>homocysteine</kwd><kwd>myocardial infarction with ST segment elevation</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">Гусина А. А., Гусина Н. Б. 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