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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2018-4-23-32</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-1974</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Повышение констрикторного влияния Rho-киназы в артериях скелетных мышц и сердца при хроническом гипотиреозе у крыс</article-title><trans-title-group xml:lang="en"><trans-title>Increase in the constrictor effects of Rho-kinase in skeletal muscle and coronary arteries of rats with chronic hypothyroidism</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>Гайнуллина</surname><given-names>Д. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaynullina</surname><given-names>D. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гайнуллина Дина К., кандидат биологических наук, старший научный сотрудник, кафедра физиологии человека и животных биологического факультета, МГУ имени М.В. Ломоносова; старший научный сотрудник, лаборатория физиологии мышечной деятельности, ГНЦ РФ – ИМБП РАН</p><p>119234, г. Москва, Ленинские горы, 1, </p><p>123007, г. Москва, Хорошевское шоссе, 76А</p></bio><bio xml:lang="en"><p>Gaynullina Dina K., PhD, Senior Researcher, Department of Human and Animal Physiology, M.V. Lomonosov Moscow State University; Senior Researcher, Laboratory of Exercise Physiology, State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</p><p>1, Leninskie Gory,Moscow, 119234, </p><p>76A, Khoroshevskoe Shosse, Moscow, 123007</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Селиванова</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Selivanova</surname><given-names>E. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Селиванова Екатерина Константиновна, аспирант, кафедра физиологии человека и животных биологического факультета, МГУ имени М.В. Ломоносова; младший научный сотрудник, лаборатория физиологии мышечной деятельности, ГНЦ РФ – ИМБП РАН</p><p>119234, г. Москва, Ленинские горы, 1, </p><p>123007, г. Москва, Хорошевское шоссе, 76А</p></bio><bio xml:lang="en"><p>Selivanova Ekaterina K., PhD Student, Department of Human and Animal Physiology, M.V. Lomonosov Moscow State University; Junior Researcher, Laboratory of Exercise Physiology, State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</p><p>1, Leninskie Gory,Moscow, 119234, 76A, Khoroshevskoe Shosse, Moscow, 123007</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шарова</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharova</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шарова Анна Петровна, кандидат биологических наук, ведущий научный сотрудник, лаборатория физиологии мышечной деятельности</p><p>123007, г. Москва, Хорошевское шоссе, 76А</p></bio><bio xml:lang="en"><p>Sharova Anna P., PhD, Leading Researcher, Laboratory of Exercise Physiology, State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</p><p>76A, Khoroshevskoe Shosse, Moscow, 123007</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4230-3849</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тарасова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тарасова Ольга Сергеевна, доктор биологических наук, доцент, профессор кафедры физиологии человека и животных биологического факультета, МГУ имени М.В.Ломоносова; ведущий научный сотрудник, лаборатория физиологии мышечной деятельности, ГНЦ РФ – ИМБП РАН</p><p>119234, г. Москва, Ленинские горы, 1, </p><p>123007, г. Москва, Хорошевское шоссе, 76А</p></bio><bio xml:lang="en"><p>Tarasova Olga S., DBSc, Professor, Department of Human and Animal Physiology, M.V. Lomonosov Moscow State University; Leading Researcher of the Laboratory of Exercise Physiology, State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</p><p>1, Leninskie Gory,Moscow, 119234, 76A, Khoroshevskoe Shosse, Moscow, 123007</p></bio><email xlink:type="simple">ost.msu@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет (МГУ) имени М.В. Ломоносова;&#13;
Государственный научный центр Российской Федерации – Институт медико-биологических проблем Российской академии наук (ГНЦ РФ – ИМБП РАН)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.V. Lomonosov Moscow State University;&#13;
State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственный научный центр Российской Федерации – Институт медико-биологических проблем Российской академии наук (ГНЦ РФ – ИМБП РАН)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2018</year></pub-date><volume>17</volume><issue>4</issue><fpage>23</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гайнуллина Д.К., Селиванова Е.К., Шарова А.П., Тарасова О.С., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Гайнуллина Д.К., Селиванова Е.К., Шарова А.П., Тарасова О.С.</copyright-holder><copyright-holder xml:lang="en">Gaynullina D.K., Selivanova E.K., Sharova A.P., Tarasova O.S.</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://bulletin.ssmu.ru/jour/article/view/1974">https://bulletin.ssmu.ru/jour/article/view/1974</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Известно, что снижение секреторной активности щитовидной железы может сопровождаться повышением общего периферического сопротивления сосудов. Данная работа была направлена на проверку гипотезы, что хронический гипотиреоз приводит к увеличению вазоконстрикторного влияния Rho-киназы в резистивных артериях скелетных мышц и сердца взрослых крыс.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Самцы крыс линии Вистар получали тиреостатик пропилтиоурацил (0,025%) в питьевой воде, начиная с 10-недельного возраста (n = 10). Крысы контрольной группы пили воду без тиреостатика (n = 10). Через 14 нед проводили регистрацию в изометрическом режиме сократительных реакций артерий икроножной мышцы (на агонист α1-адренорепторов метоксамин) и перегородочной артерии сердца (на агонист рецепторов тромбоксана А2 U46619). Влияние Rho-киназы на сокращение артерий оценивали с использованием ее ингибитора Y27632 (3 мкМ).</p></sec><sec><title>Результаты</title><p>Результаты. Потребление пропилтиоурацила сопровождалось выраженным снижением содержания тиреоидных гормонов и повышением содержания общего холестерина в сыворотке крови животных, а также уменьшением массы тела и максимальной силы сокращения исследуемых артерий. Однако базальный тонус и реактивность в ответ на умеренные концентрации агонистов в артериях крыс с гипотиреозом были увеличенными по сравнению с контрольными животными. Действие Y27632 значительно ослабляло сократительные ответы артерий икроножной мышцы и сердца и нивелировало различия между двумя группами крыс.</p></sec><sec><title>Заключение</title><p>Заключение. Хронический гипотиреоз приводит к повышению активности сигнального пути Rho-киназы в артериях скелетной мышцы и сердца, что проявляется в увеличении спонтанного тонуса этих артерий и их реактивности на агонисты.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. The deficit of thyroid function is known to be accompanied by an increase in the overall peripheral vascular resistance. This work tested the hypothesis that long-term hypothyroidism leads to an increase in the vasoconstrictor effect of Rho-kinase in skeletal muscle and heart resistance arteries of adult rats.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Male Wistar rats consumed the antithyroid drug propylthiouracil (PTU) in drinking water (0.025%), starting at 10 weeks of age. The rats of the control group received PTU-free water. After 14 weeks, the contractile responses of the gastrocnemius muscle arteries (to the α1-adrenoceptor agonist methoxamine) and the septal coronary artery (to the thromboxane A2 receptor agonist U46619) were isometrically recorded. The contribution of the Rho-kinase to the arterial contractile responses was assessed using inhibitor Y27632 (3 μM).</p></sec><sec><title>Results</title><p>Results. The consumption of propylthiouracil was accompanied by a marked decrease of thyroid hormone concentrations and an increase in total cholesterol serum level as well as a decrease in body weight. Maximal contractile responses of studied arteries were also reduced in hypothyroid rats. However, basal tone and reactivity to the moderate concentrations of agonists in arteries of hypothyroid rats were increased compared to control animals. Y27632 significantly weakened the contractile responses of the arteries and negated the differences between the two groups of rats.</p></sec><sec><title>Conclusion</title><p>Conclusion. Chronic hypothyroidism leads to an increase in the activity of the Rho-kinase signaling pathway in the arteries of the gastrocnemius muscle and heart, which results in the increase of the spontaneous tone of the arteries and their reactivity to agonists.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>щитовидная железа</kwd><kwd>пропилтиоурацил</kwd><kwd>мелкие артерии</kwd><kwd>α1-адренорепторы</kwd><kwd>рецепторы тромбоксана А2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thyroid gland</kwd><kwd>propylthiouracil</kwd><kwd>small arteries</kwd><kwd>α1-adrenoceptors</kwd><kwd>thromboxane A2 receptors</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">Danzi S., Klein I. Thyroid hormone and the cardiovascular system. Med. Clin. North Am. 2012; 96: 257–268. DOI:10.1016/j.mcna.2012.01.006.</mixed-citation><mixed-citation xml:lang="en">Danzi S., Klein I. 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