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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">nogr</journal-id><journal-title-group><journal-title xml:lang="ru">Экспериментальная и клиническая гастроэнтерология</journal-title><trans-title-group xml:lang="en"><trans-title>Experimental and Clinical Gastroenterology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-8658</issn><publisher><publisher-name>«Global Media Technologies»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31146/1682-8658-ecg-230-10-155-161</article-id><article-id custom-type="elpub" pub-id-type="custom">nogr-3013</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>ЭКСПЕРИМЕНТАЛЬНАЯ ГАСТРОЭНТЕРОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL GASTROENTEROLOGY</subject></subj-group></article-categories><title-group><article-title>Дифференциально-диагностическое значение уровня сывороточного лептина и полиморфизма Gln223Arg гена рецептора лептина при метаболически ассоциированной жировой и алкогольной болезнях печени</article-title><trans-title-group xml:lang="en"><trans-title>Differential diagnostic value of serum leptin level and polymorphism of the leptin receptor gene Gln223Arg in metabolic fatty and alcoholic liver diseases</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>Морозова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>O. A.</given-names></name></name-alternatives><email xlink:type="simple">o_a_morozova@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>Морозова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новокузнецкий государственный институт усовершенствования врачей - филиал ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» МЗ РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novokuznetsk State Institute for Further Training of Physicians</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>10</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>10</issue><fpage>155</fpage><lpage>161</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Морозова О.А., Морозова А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Морозова О.А., Морозова А.В.</copyright-holder><copyright-holder xml:lang="en">Morozova O.A., Morozova A.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://www.nogr.org/jour/article/view/3013">https://www.nogr.org/jour/article/view/3013</self-uri><abstract><p>Цель исследования: изучение содержания сывороточного лептина и полиморфизм Gln223Arg гена рецептора лептина LEPR (LEPRGln223Arg) как дополнительных критериев дифференциальной диагностики метаболически ассоциированной жировой и алкогольной болезней печени. Предмет исследования: содержание сывороточного лептина и полиморфизм LEPRGln223Arg у больных метаболически ассоциированной жировой болезнью печени и алкогольной болезнями печени. Методы исследования. Проведен сравнительный анализ уровня сывороточного лептина и частот распределения генотипических/аллельных вариантов полиморфизма LEPRGln223Argу 108 больных метаболически ассоциированной жировой болезнью печени и у 80 больных алкогольной болезнью печени с оценкой индекса массы тела, липидного обмена, гендерных различий, в контрольную группу вошли 126 человек без патологии печени. Результаты. Выявлены достоверные различия в содержании сывороточного лептина и частотах распределения генотипических/аллельных вариантов полиморфизма LEPRGln223Arg у больных метаболически ассоциированной жировой болезнью печени и алкогольной болезнью печени. Заключение. Предложены дополнительные дифференциально-диагностические критерии метаболически ассоциированной жировой болезни печени и алкогольной болезни печени на ранних стадиях. Выявлено, что гиперлептинемия у больных метаболически ассоциированной жировой болезнью печени превышает таковую у больных алкогольной болезнью печени. В отличие от больных алкогольной болезнью печени, у пациентов обоего пола с метаболически ассоциированной жировой болезнью печени лептинорезистентность связана с носительством различных вариантов полиморфизма LEPRGln223Arg.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the investigation is the study of the serum leptin content and polymorphism of the leptin receptor gene glutamine 223 arginine (LEPRGln223Arg) as additional criteria for the differential diagnosis of metabolic and alcoholic liver diseases. The subject of the study: serum leptin content and polymorphism of the leptin receptor gene LEPRGln223Arg in patients with metabolic fatty liver disease and alcoholic liver disease. The investigation methods. A comparative analysis of the serum leptin level and polymorphism of the leptin receptor gene LEPRGln223Arg was carried out in 108 patients with metabolic fatty liver disease and in 80 patients with alcoholic liver disease with an assessment of body mass index, lipid metabolism, and gender differences. Results. Reliable differences in serum leptin content and the frequency of genotypes of the leptin receptor gene LEPRGln223Arg were revealed in patients with metabolic fatty liver disease and alcoholic liver disease. The results obtained can serve as additional differential diagnostic criteria between metabolic fatty liver disease and alcoholic liver disease in the early stages. Conclusion. The results obtained confirm hyperleptinemia in patients with metabolic fatty liver disease exceeding that in patients with alcoholic liver disease. Leptin resistance in men and women with metabolic fatty liver disease is associated with different genotypes of the leptin receptor gene LEPRGln223Arg. No similar association of the genotypes of the leptin receptor gene LEPRGln223Arg was found in patients with alcoholic liver disease.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метаболически ассоциированная жировая болезнь печени</kwd><kwd>алкогольная болезнь печени</kwd><kwd>лептин</kwd><kwd>полиморфизм</kwd><kwd>генотип</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metabolic fatty liver disease</kwd><kwd>alcoholic liver disease</kwd><kwd>leptin</kwd><kwd>polymorphism</kwd><kwd>genotype</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">European Association for the Liver (EASL); European Association for the Study of Diabetes (EASD); European Association for Study of Obesity (EASO). EASL-EASD-EASO Clinical Practice Guidelines for management of non-alcoholic fatty liver disease. 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