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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 custom-type="elpub" pub-id-type="custom">nogr-543</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>ПЕРЕДОВАЯ СТАТЬЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LEADING ARTICLE</subject></subj-group></article-categories><title-group><article-title>ПОЛИМОРФИЗМ -174G&gt;C ГЕНА IL6 (RS1800795) И ЕГО ВЛИЯНИЕ НА ЭФФЕКТИВНОСТЬ ТЕРАПИИ УРСОДЕЗОКСИХОЛЕВОЙ КИСЛОТОЙ У ПАЦИЕНТОВ С НЕАЛКОГОЛЬНЫМ СТЕАТОГЕПАТИТОМ</article-title><trans-title-group xml:lang="en"><trans-title>-174g&gt;c polymorphism (rs1800795) of il6 gene and its impact on the effectiveness of treatment with ursodeoxycholic acid in patients with nonalcoholic steatohepatitis</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>Курбатова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurbatova</surname><given-names>I. V.</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>Дуданова</surname><given-names>О. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Dudanova</surname><given-names>O. P.</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>Топчиева</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Topchieva</surname><given-names>L. 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>Институт биологии - обособленное подразделение Федерального государственного бюджетного учреждения науки Федерального исследовательского центра «Карельский научный центр Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biology of Karelian Research Centre Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Петрозаводский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Petrozavodsk State University, the Department of Internal Medicine Propaedeutics and hygiene</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>20</day><month>02</month><year>2018</year></pub-date><volume>0</volume><issue>2</issue><fpage>31</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Курбатова И.В., Дуданова О.П., Топчиева Л.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Курбатова И.В., Дуданова О.П., Топчиева Л.В.</copyright-holder><copyright-holder xml:lang="en">Kurbatova I.V., Dudanova O.P., Topchieva 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://www.nogr.org/jour/article/view/543">https://www.nogr.org/jour/article/view/543</self-uri><abstract><p>Сравнительный анализ клинико-лабораторных показателей носителей разных генотипов по полиморфному маркеру -174G&gt;C гена IL6 (rs1800795) в группах здоровых доноров и пациентов с НАСГ в отсутствие гепатопротекторной терапии и на фоне терапии УДХК. обследовано 50 пациентов с установленным впервые диагнозом НАСГ. Пациенты НАСГ проходили лечение препаратами УДХК в дозе 10-15 мг/кг в течение 8-10 недель. Контрольную группу составили 50 доноров без клинических проявлений НАЖБП. Генотипирование проводилось методом ПЦР-ПДРФ. До начала лечения и после монотерапии УДХК определялись печеночные тесты, уровень цитокинов IL6 и TNFα в крови, уровень экспрессии генов IL6 и TNF, активность каспаз в периферических лейкоцитах. У пациентов НАСГ, имеющих в генотипе разные аллели по маркеру -174G&gt;C гена IL6, наблюдаются достоверные различия в изменении уровня показателя печеночно-клеточного повреждения, АСАТ, и уровня мРНК гена TNF в ЛПК. У носителей аллеля С эффект терапии УДХК на уровень АСАТ и уровень транскриптов гена TNF в ЛПК менее выраженный, чем у носителей генотипа GG, что свидетельствует о меньшей чувствительности к терапии УДХК у носителей мутантного аллеля. Медианы снижения уровня АСАТ и уровня относительной экспрессии мРНК гена TNF в ЛПК у носителей С аллеля достоверно ниже, чем у носителей генотипа GG, p&lt;0,05. Значимых различий влияния терапии УДХК на уровень других изучаемых показателей в зависимости от генотипа не обнаружено. Получены подтверждения того, что наличие однонуклеотидной замены -174G&gt;C в гене IL6 (rs1800795), ассоциированной с развитием НАСГ, может определять не только генетическую предрасположенность к развитию данного заболевания, но и различную чувствительность пациентов с НАЖБП к препаратам на основе УДХК.</p></abstract><trans-abstract xml:lang="en"><p>The aim was a comparative analysis of clinical and laboratory parameters in carriers of different genotypes for the -174G&gt;C IL6 gene polymorphic marker (rs1800795) in healthy donors and patients with NASH in the absence of hepatoprotective therapy and after therapy with UDCA. There were examined 50 patients with the diagnosis of NASH. NASH patients were treated with UDCA at a dose of 10-15 mg/kg for 8-10 weeks. The control group consisted of 50 donors without the clinical manifestations of NAFLD. Genotyping was carried out using the PCR-RFLP method. Functional liver tests, the level of cytokines IL6 and TNFα in the blood, the level of expression of the IL6 and TNF genes, the activity of caspases in peripheral leukocytes were estimated before the treatment and after UDCA monotherapy. In NASH patients with different alleles for the -174G&gt;C IL6 gene polymorphic marker, there are significant differences in the level of the indicator of hepatic cell damage - AST, and the mRNA level of the TNF gene in PBL. In carriers of C allele, the effect of UDCA therapy on the level of AST and the TNF gene transcripts in PBL is less pronounced than in carriers of the GG genotype. This indicates a lower sensitivity to UDCA therapy in carriers of the mutant allele. The medians of decrease in the AST level and in the level of mRNA relative expression of the TNF gene in carriers of C allele are significantly lower than in carriers of the GG genotype, p&lt;0.05. Significant differences in the effect of UDCA therapy on the level of other studied parameters depending on the genotype were not found. The presence of the -174G&gt;C single nucleotide substitution in the IL6 gene (rs1800795), which is associated with the development of NASH, can determine not only the genetic predisposition to the development of this disease, but also the different sensitivity of patients with NAFLD to UDCA-based drugs.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>неалкогольный стеатогепатит (НАСГ)</kwd><kwd>интерлейкин-6</kwd><kwd>полиморфизм</kwd><kwd>урсодезоксихолевая кислота (УДХК)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonalcoholic steatohepatitis (NASH)</kwd><kwd>interleukin-6</kwd><kwd>polymorphism</kwd><kwd>ursodeoxycholic acid (UDCA)</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">Драпкина О. М., Деева Т. А., Волкова Н. П., Ивашкин В. Т. 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