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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 pub-id-type="doi">10.22416/1382-4376-2021-31-1-20-30</article-id><article-id custom-type="elpub" pub-id-type="custom">gastro-j-525</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group></article-categories><title-group><article-title>Методы оценки кишечной проницаемости: обзор литературы</article-title><trans-title-group xml:lang="en"><trans-title>Intestinal Permeability Assays: a Review</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3347-5283</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якупова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Iakupova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якупова Алина Айратовна — врач-ординатор кафедры фундаментальных основ клинической медицины.</p><p>420012, Казань, ул. Карла Маркса, д. 76.</p></bio><bio xml:lang="en"><p>Alina A. Iakupova — Resident Physician, Chair of Fundamentals of Clinical Medicine, Kazan Federal University.</p><p>420012, Kazan, Karla Marksa str., 76.</p></bio><email xlink:type="simple">alinayakupova96@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9542-3580</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдулхаков</surname><given-names>С. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdulkhakov</surname><given-names>S. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдулхаков Сайяр Рустамович — кандидат медицинских наук, заведующий кафедрой фундаментальных основ клинической медицины КФУ; доцент кафедры поликлинической терапии и общей врачебной практики КГМУ МЗ РФ.</p><p>420012, Казань, ул. Карла Маркса, д. 76.</p></bio><bio xml:lang="en"><p>Sayar R. Abdulkhakov — Cand. Sci. (Med.), Head of the Chair of Fundamentals of Clinical Medicine, Kazan Federal University, associate professor, Department (Chair) of Outpatient Therapy and General Medical Practice, Kazan State Medical University.</p><p>420012, Kazan, Karla Marksa str., 76.</p></bio><email xlink:type="simple">sayarabdul@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2062-0058</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Залялов</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Zalyalov</surname><given-names>R. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Залялов Рамиль Камилевич — врач-эндоскопист.</p><p>420043, Казань, ул. Чехова, д. 1а.</p></bio><bio xml:lang="en"><p>Ramil K. Zalyalov — Physician (endoscopy), Kazan Federal University.</p><p>420043, Kazan, Chekhova str., 1A.</p></bio><email xlink:type="simple">romazzol@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4689-7058</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Safin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сафин Айрат Габбасович — врач-эндоскопист, заведующий эндоскопическим отделением.</p><p>420043, Казань, Чехова, д. 1а.</p></bio><bio xml:lang="en"><p>Ayrat G. Safin — Physician (endoscopy), Head of the Department of Endoscopy, Kazan Federal University.</p><p>420043, Kazan, Chekhova str., 1A.</p></bio><email xlink:type="simple">tabibrkb2@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1509-6776</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдулхаков</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdulkhakov</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдулхаков Рустам Аббасович — доктор медицинских наук, профессор, профессор кафедры госпитальной терапии.</p><p>420012, Казань, ул. Бутлерова, д. 49.</p></bio><bio xml:lang="en"><p>Rustam A. Abdulkhakov — Dr. Sci. (Med.), Prof., Chair of Hospital Therapy, Kazan State Medical University.</p><p>420012, Kazan, Butlerova str., 49.</p></bio><email xlink:type="simple">rustemabdul@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет; Казанский государственный медицинский университет Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University; Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет, Медико-санитарная часть</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University, University Clinic</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Казанский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>01</month><year>2021</year></pub-date><volume>31</volume><issue>1</issue><fpage>20</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Якупова А.А., Абдулхаков С.Р., Залялов Р.К., Сафин А.Г., Абдулхаков Р.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Якупова А.А., Абдулхаков С.Р., Залялов Р.К., Сафин А.Г., Абдулхаков Р.А.</copyright-holder><copyright-holder xml:lang="en">Iakupova A.A., Abdulkhakov S.R., Zalyalov R.K., Safin A.G., Abdulkhakov R.A.</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/525">https://www.gastro-j.ru/jour/article/view/525</self-uri><abstract><sec><title>Цель обзора</title><p>Цель обзора: проанализировать данные по методам оценки кишечной проницаемости.</p></sec><sec><title>Основные положения</title><p>Основные положения. Кишечный барьер представляет собой функциональное образование, разделяющее просвет кишечника и внутреннюю среду организма, кишечная проницаемость позволяет оценивать функционирование кишечного барьера. Методы, используемые для оценки проницаемости и целостности кишечного барьера, различаются в зависимости от условий их применения (in vivo или ex vivo), объекта исследования (человек или животные), маркерных молекул, используемых для оценки проницаемости (ионы, углеводы различных размеров, макромолекулы и антигены, бактериальные продукты и бактерии), а также биоматериалов, используемых для измерения концентрации маркерных молекул (периферическая кровь, кровь из воротной вены, моча, кал). Несмотря на большое разнообразие методов оценки кишечной проницаемости, их применение в клинической практике требует дальнейшего изучения ввиду отсутствия их стандартизации, сложности проведения некоторых методик и порой недостаточно высокой достоверности результатов.</p></sec><sec><title>Заключение</title><p>Заключение. Необходимо дальнейшее изучение и усовершенствование методов оценки кишечной проницаемости. Стандартизация методик и их результатов обеспечит возможность внедрения в практику при функциональных и органических заболеваниях кишечника, а также при аллергических заболеваниях, сахарном диабете, неалкогольной жировой болезни печени и ряде других заболеваний.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. A literature review of intestinal permeability assessment techniques.</p></sec><sec><title>Key points</title><p>Key points. The intestinal barrier is a functional entity separating the intestinal lumen and internal body, and intestinal permeability is a measure of the barrier functionality. The intestinal barrier integrity and permeability assays differ by the application setting (in vivo or ex vivo), subject (human or animal), marker molecules used to assess permeability (ions, various size carbohydrates, macromolecules, antigens, bacterial products and bacteria), biomaterial for the marker concentration assays (peripheral blood, portal venous blood, urine, stool). Despite a great variety of methods for assessing intestinal permeability, their clinical application requires further studies due to a lack of standardisation, the complexity of selected techniques and occasional limited reliability of results.</p></sec><sec><title>Conclusion</title><p>Conclusion. Further investigation and improvement of intestinal permeability assays is required. The assay and result standardisation will facilitate practice in functional and organic intestinal diseases, as well as allergies, diabetes mellitus, non-alcoholic fatty liver disease and some other illnesses.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>кишечная проницаемость</kwd><kwd>кишечный барьер</kwd><kwd>сахарный тест</kwd><kwd>липополисахарид</kwd><kwd>плотные контакты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>intestinal permeability</kwd><kwd>intestinal barrier</kwd><kwd>sugar test</kwd><kwd>lipopolysaccharide</kwd><kwd>tight junctions</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет средств субсидии, выделенной Казанскому федеральному университету для выполнения государственного задания 0671-2020-0058 в сфере научной деятельности.</funding-statement><funding-statement xml:lang="en">Research was funded by the Kazan Federal University within State Assignment 0671-20200058 in the field of science.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Salvo R.E., Alonso C.C., Pardo C.C., Casado B.M., Vicario M. 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