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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">gastro-j</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал гастроэнтерологии, гепатологии, колопроктологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Gastroenterology, Hepatology, Coloproctology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1382-4376</issn><issn pub-type="epub">2658-6673</issn><publisher><publisher-name>«Gastro» LLC</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">gastro-j-1388</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 ARTICLES</subject></subj-group></article-categories><title-group><article-title>Рефрактерная форма гастроэзофагеальной рефлюксной болезни: клинико-эндоскопические, функциональные и морфофункциональные критерии</article-title><trans-title-group xml:lang="en"><trans-title>The refractory form of gastroesophageal reflux disease: clinical and endoscopical, functional and morphofunctional criteria</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>Осадчук</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Osadchuk</surname><given-names>M. A.</given-names></name></name-alternatives></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Осадчук</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Osadchuk</surname><given-names>A. M.</given-names></name></name-alternatives></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балашов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Balashov</surname><given-names>D. V.</given-names></name></name-alternatives></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кветной</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kvetnoy</surname><given-names>I. M.</given-names></name></name-alternatives></contrib></contrib-group><pub-date pub-type="collection"><year>2011</year></pub-date><pub-date pub-type="epub"><day>26</day><month>03</month><year>2011</year></pub-date><volume>21</volume><issue>2</issue><fpage>30</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Осадчук М.А., Осадчук А.М., Балашов Д.В., Кветной И.М., 2011</copyright-statement><copyright-year>2011</copyright-year><copyright-holder xml:lang="ru">Осадчук М.А., Осадчук А.М., Балашов Д.В., Кветной И.М.</copyright-holder><copyright-holder xml:lang="en">Osadchuk M.A., Osadchuk A.M., Balashov D.V., Kvetnoy I.M.</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.gastro-j.ru/jour/article/view/1388">https://www.gastro-j.ru/jour/article/view/1388</self-uri><abstract><p>Цель исследования. Оценить активность клеток диффузной эндокринной системы пищевода у больных с рефрактерной формой гастроэзофагеальной рефлюксной болезни (ГЭРБ).Материал и методы. Обследованы 23 пациента с рефрактерной формой гастроэзофагеальной рефлюксной болезни (РФГЭРБ), 100 больных ГЭРБ, у которых лечение было эффективным, в том числе 60 с неэрозивной формой эндоскопически позитивной ГЭРБ (НФГЭРБ) и 40 с эрозивной формой ГЭРБ (ЭФГЭРБ), и 14 пациентов с пищеводом Баррета (ПБ). Группы сравнения составили 30 пациентов с хроническим геликобактерным гастритом и 20 практически здоровых лиц. Иммуногистохимическим методом определялось содержание нефроэндокринных клеток слизистой оболочки пищевода, продуцирующих синтазу оксида азота, эндотелин-1, мелатонин, нейротензин и р53.Результаты. В отличие от НФГЭРБ и ЭФГЭРБ при РФГЭРБ наблюдается более выраженная гиперплазия нейроэндокринных клеток пищевода, секретирующих нейротензин, и эпителиальных клеток пищевода, экспрессирующих р53.Выводы. Нарушения функциональной активности нейроэндокринных клеток слизистой оболочки пищевода, вырабатывающих нейротензин, и эпителиальных клеток пищевода, экспрессирующих р53, могут служить фактором, способствующим формированию рефрактерных форм ГЭРБ.</p></abstract><trans-abstract xml:lang="en"><sec><title>Aim of investigation</title><p>Aim of investigation. To estimate activity of cells of diffuse endocrine system of the esophagus at patients with refractory form of gastroesophageal reflux disease (GERD).</p></sec><sec><title>Material and methods</title><p>Material and methods. Twenty three patients with the refractory form of gastroesophageal reflux disease (RFGERD), 100 patients of GERD who responded to treatment, including 60 of those with non-erosive form of endoscopically positive GERD (NFGERD), 40 — with erosive form of GERD (EFGERD) and 14 patients with Barret’s esophagus (BE) were investigated. Groups of comparison included 30 patients with chronic H. pyloriassociated gastritis and 20 generally healthy patients. Contents of nephro-endocrine cells in mucosa of the esophagus, producing nitric oxide synthase, endothelin-1, melatonin, neurotensin and р53 was determined by immunehistochemical method.</p></sec><sec><title>Results</title><p>Results. In contrast to NFGERD and EFGERD, at RFGERD higher grade of hyperplasia of esophageal neuroendocrine cells secreting neurotensin, and esophageal epithelial cells expressing р53 was observed.</p></sec><sec><title>Conclusions</title><p>Conclusions. Disorders of functional activity of neuroendocrinal cells of esophageal mucosa, producing neurotensin, and epithelial cells of the esophagus expressing р53, can act as a factor promoting development of refractory forms of GERD.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>гастроэзофагеальная рефлюксная болезнь</kwd><kwd>диффузная нейроэндокринная система</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gastroesophageal reflux disease</kwd><kwd>diffuse neuroendocrinal system</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">Ивашкин В.Т. 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