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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">ketendo</journal-id><journal-title-group><journal-title xml:lang="ru">Клиническая и экспериментальная тиреоидология</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical and experimental thyroidology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1995-5472</issn><issn pub-type="epub">2310-3787</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/ket2015324-33</article-id><article-id custom-type="elpub" pub-id-type="custom">ketendo-7217</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 Studies</subject></subj-group></article-categories><title-group><article-title>Влияние полиморфизма Ser38Gly гена β-субъединицы калиевого канала миокарда на течение тиреотоксической кардиомиопатии у пациентов  с болезнью Грейвса</article-title><trans-title-group xml:lang="en"><trans-title>SNP Ser38Gly in the β-subunit of potassium channel gene KCNE1 and thyrotoxic cardiomyopathy in patients with Graves’ disease</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>Савицкая</surname><given-names>Дарья Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Babenko</surname><given-names>Alina Yur'evna</given-names></name></name-alternatives><bio xml:lang="ru"><p>ординатор 1-го года</p></bio><bio xml:lang="en"><p>MD, PhD</p></bio><email xlink:type="simple">alina_babenko@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>Бабенко</surname><given-names>Алина Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Savitskaya</surname><given-names>Dar'ya Aleksandrovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, заведующая НИЛ диабетологии института эндокринологии</p></bio><bio xml:lang="en"><p>MD</p></bio><email xlink:type="simple">alina_babenko@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>Костарева</surname><given-names>Анна Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Kostareva</surname><given-names>Anna Aleksandrovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., директор института молекулярной биологии и генетики</p></bio><bio xml:lang="en"><p>MD, PhD</p></bio><email xlink:type="simple">alina_babenko@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>Гринева</surname><given-names>Елена Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Grineva</surname><given-names>Elena Nikolaevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, директор института эндокринологии</p></bio><bio xml:lang="en"><p>MD, PhD, Professor</p></bio><email xlink:type="simple">alina_babenko@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ “Северо-Западный федеральный медицинский исследовательский центр им. В.А. Алмазова”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal North-West Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2015</year></pub-date><volume>11</volume><issue>3</issue><fpage>24</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савицкая Д.А., Бабенко А.Ю., Костарева А.А., Гринева Е.Н., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Савицкая Д.А., Бабенко А.Ю., Костарева А.А., Гринева Е.Н.</copyright-holder><copyright-holder xml:lang="en">Babenko A.Y., Savitskaya D.A., Kostareva A.A., Grineva E.N.</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.cet-endojournals.ru/jour/article/view/7217">https://www.cet-endojournals.ru/jour/article/view/7217</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность.</p><p>В настоящее время не вполне определены факторы риска формирования и дальнейшего прогрессирования кардиомиопатии у пациентов с тиреотоксикозом. Однако это необходимо для выбора оптимальной тактики лечения. В связи с этим проводится поиск новых предикторов развития и тяжелого течения тиреотоксической кардиомиопатии (ТКМП). К возможным факторам риска относятся и однонуклеотидные полиморфизмы. В качестве вероятных генетических детерминант мы рассматривали гены, экспрессия которых изменяется под воздействием тиреоидных гормонов, а также гены, которые тем или иным способом вовлечены в патогенез нетиреотоксической патологии сердца. В настоящем исследовании мы изучали полиморфизм гена калиевого канала, который, по данным литературы, ассоциирован с увеличением риска фибрилляции предсердий у лиц без патологии щитовидной железы.</p></sec><sec><title>Цель</title><p>Цель.</p><p>Целью исследования было оценить вклад полиморфизма Ser38Gly гена KCNE1 в развитие и течение тиреотоксической кардиомиопатии, в том числе влияние его на ремоделирование миокарда и частоту тиреотоксической фибрилляции предсердий.</p></sec><sec><title>Материал и методы</title><p>Материал и методы.</p><p>В исследование были включены 155 пациентов с манифестным тиреотоксикозом, обусловленным болезнью Грейвса, и 187 здоровых доноров крови в качестве группы контроля. Типирование однонуклеотидного полиморфизма Ser38Gly гена KCNE1 проводилось методом полимеразной цепной реакции в режиме реального времени.</p></sec><sec><title>Результаты</title><p>Результаты.</p><p>Было установлено, что связь полиморфизма Ser38Gly гена KCNE1 с тиреотоксической фибрилляцией предсердий имеет место только в старшей возрастной группе. У лиц 45 лет и старше фибрилляция предсердий достоверно чаще развивается у носителей аллеля G в гомозиготном состоянии: 35,3% (GG) vs 13,9% (AG+AA) (p = 0,037). Кроме того, была выявлена связь с уровнем артериального давления (АД): систолическое АД было ниже у носителей аллеля G в гомозиготном состоянии по сравнению с гетерозиготами и гомозиготами по аллелю A в совокупности: 124,89 ± 15,14 vs 131,35 ± 15,32 мм рт. ст. (p = 0,012).</p></sec><sec><title>Заключение</title><p>Заключение.</p><p>Выявленная ассоциация изучаемого полиморфизма с фибрилляцией предсердий имела место только у пациентов старше 45 лет, что доказывает, что его влияние незначительно по сравнению с “классическими”, подтвержденными ранее во многих исследованиях факторами риска. Достоверных отличий по степени тяжести ТКМП и типу ремоделирования миокарда в зависимости от генотипа не было обнаружено.</p></sec></abstract><trans-abstract xml:lang="en"><p>The relevance of the research.</p><p>The risk factors of developing severe thyrotoxic cardiomyopathy (TCMP) are not certainly determined now. But it is essential to choose the optimal approach to care. Recent studies show that even patients of the same sex, with similar age, duration of thyrotoxicosis and hormones’ level differ in a severity of cardiomyopathy. So, scientists began to search for genetic risk predictors of the heart damage, caused by thyrotoxicosis. Among possible genetic predictors of thyrotoxicosis are single nucleotide polymorphisms in genes, that expression is regulated by thyroid hormones or genes, that are involved in developing of non-thyrotoxic cardiac pathology.</p><sec><title>Aim</title><p>Aim.</p><p>To investigate the possible association of the polymorphism Ser38Gly in KCNE1 gene with different manifestations of thyrotoxic cardiomyopathy, especially with atrial fibrillation and cardiac remodeling.</p></sec><sec><title>Materials and methods</title><p>Materials and methods.</p><p>155 patients with thyrotoxicosis caused by Graves’ disease were enrolled. Genotyping was also made in 187 healthy blood donors – the control group. Genotyping was performed by real time polymerase chain reaction.</p></sec><sec><title>Results</title><p>Results.</p><p>Our results show an interaction of the single nucleotide polymorphism Ser38Gly in KCNE1 gene with TCMP only in patients aged 45 and older. In this age group atrial fibrillation was significantly more prevalent in GG genotype carriers: 35.3% (GG) vs 13.9% (AG+AA) (p = 0.037). Also, there was a significant difference in systolic blood pressure (SBP) by KCNE1 codon 38 genotypes. SBP were significantly higher in allele G gomozygotes as compared to allele A carriers: 124.89 ± 15.14 mm Hg vs 131.35 ± 15.32 mm Hg (p = 0.012).</p></sec><sec><title>Conclusion</title><p>Conclusion.</p><p>The fact, that association of the polymorphism Ser38Gly with atrial fibrillation was shown only in group with patients older than 45 years, proves that its influence is of a lower value in comparison with “traditional” risk factors. There was no significant difference among genotypes in severity of TCMP and types of myocardial re-modeling.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ген KCNE1</kwd><kwd>minK пептид</kwd><kwd>фибрилляция предсердий</kwd><kwd>тиреотоксикоз</kwd><kwd>болезнь Грейвса</kwd><kwd>тиреотоксическая кардиомиопатия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gene KCNE1</kwd><kwd>minK peptide</kwd><kwd>atrial fibrillation</kwd><kwd>thyrotoxicosis</kwd><kwd>Graves’ disease</kwd><kwd>thyrotoxic cardiomyopathy</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">Frost L, Vestergaard P, Mosekilde L. Hyperthyroidism and risk of atrial fibrillation or flutter: A population-based study. Arch Intern Med. 2004;164(15):1675-1678. doi: 10.1001/archinte.164.15.1675.</mixed-citation><mixed-citation xml:lang="en">Frost L, Vestergaard P, Mosekilde L. 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