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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">fcmedicine</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и клиническая медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Clinical Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2500-0764</issn><issn pub-type="epub">2542-0941</issn><publisher><publisher-name>КемГМУ</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">fcmedicine-86</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>Статьи</subject></subj-group></article-categories><title-group><article-title>МЕХАНИЗМ ТОРМОЗНОГО И СТИМУЛЯТОРНОГО ВЛИЯНИЙ СЕРОТОНИНА НА СОКРАЩЕНИЯ ДВЕНАДЦАТИПЕРСТНОЙ КИШКИ</article-title><trans-title-group xml:lang="en"><trans-title>MECHANISM OF INHIBITORY AND STIMULATORY EFFECTS OF SEROTONIN ON DUODENAL CONTRACTIONS</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>Смирнов</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>VIKTOR M.</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>Свешников</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sveshnikov</surname><given-names>DMITRIY S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</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>Кучук</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuchuk</surname><given-names>ANDREY V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецова</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsova</surname><given-names>TATIANA E.</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>Игнатова</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Ignatova</surname><given-names>ELENA D.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трубецкая</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Trubetskaya</surname><given-names>LARISA V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский национальный исследовательский медицинский университет им. Н.И.Пирогова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский университет дружбы народов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples' Friendship University of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Российский университет дружбы народов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples' Friendship University of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Российский национальный исследовательский медицинский университет им. Н.И.Пирогова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2018</year></pub-date><volume>3</volume><issue>2</issue><fpage>6</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Смирнов В.М., Свешников Д.С., Кучук А.В., Кузнецова  Т.Е., Игнатова  Е.Д., Трубецкая  Л.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Смирнов В.М., Свешников Д.С., Кучук А.В., Кузнецова  Т.Е., Игнатова  Е.Д., Трубецкая  Л.В.</copyright-holder><copyright-holder xml:lang="en">Smirnov V.M., Sveshnikov D.S., Kuchuk A.V., Kuznetsova  T.E., Ignatova  E.D., Trubetskaya  L.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://fcm.kemsmu.ru/jour/article/view/86">https://fcm.kemsmu.ru/jour/article/view/86</self-uri><abstract><p>Цель. Изучить механизм двоякого влияния серотонина адипината на моторику двенадцатиперстной кишки. Материалы и методы. Эксперименты выполнены на крысах линии Вистар (n = 83) в условиях хирургической стадии наркоза. Регистрировали электромиограмму и гидростатическое давление в полости кишки с помощью усилителя BioAmp ML132 (Adinstruments, Австралия), аналого-цифрового преобразователя Maclab 8e (Adinstruments, Австралия), компьютера Масintosh Performa 6400/180 и программы Chart 4.2.3. Результаты. Установили, что при внутриартериальном введении серотонина в дозе 0,05 мг/кг тормозные реакции возникают у 29% животных, при дозе 0,1 мг/кг - у 8,3%, при дозе 0,15 мг/кг - у 6,3%. У других животных возникали стимуляторные реакции, у части животных реакции отсутствовали. Обнаружен также важный феномен - внутривенное введение серотонина адипината (даже в огромной дозе - 20 мг/кг) не ведет к усилению сокращений кишки. Заключение. Стимуляторные реакции кишки возникают вследствие активации мышечных 5НТ-рецепторов (5-гидрокситриптаминовые (серотониновые) рецепторы), тормозные - посредством активации пресинаптических 5НТ-рецепторов, локализующихся на адренергических терминалях в органе, и выброса ими тормозного медиатора норадреналина. При использовании серотонина адипината в эксперименте и в клинической практике необходимо учитывать, что эффект на введение его в организм может быть двояким: при малых дозах тормозным, при более высоких - стимуляторным.</p></abstract><trans-abstract xml:lang="en"><p>Aim. To investigate the effects of serotonin on duodenal motor activity. Materials and Methods. Experiments were performed on Wistar rats (n=83) which received nembutal anesthesia. We further conducted electromyography and measured hydrostatic pressure in the duodenum. Results. Intraarterial administration of 0.05 mg/kg, 0.1 mg/kg, and 0.15 mg/kg serotonin induced inhibitory responses in 29%, 8.3%, and 6.3% of rats, respectively. Other rats, however, showed stimulatory responses or no specific response. Intravenous administration of serotonin did not enhance bowel contractions. Conclusion. Inhibitory responses occurred at low doses of serotonin due to the activation of presynaptic5-hydroxytryptamine (5-HT, serotonin) receptors while stimulatory responses were induced by high doses of serotonin through muscular 5-HT receptors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>двенадцатиперстная кишка</kwd><kwd>моторика</kwd><kwd>регуляция</kwd><kwd>серотонин</kwd><kwd>duodenum</kwd><kwd>motor activity</kwd><kwd>regulation</kwd><kwd>serotonin</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">Arreola-Ramírez JL, Vargas MH, Manjarrez-Gutiérrez G, Alquicira J, Gutiérrez J, Córdoba G, et al. Modifications of plasma 5-HT concentrations during the allergic bronchoconstriction in guinea pigs. 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