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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">medlit</journal-id><journal-title-group><journal-title xml:lang="ru">Гигиена и санитария</journal-title><trans-title-group xml:lang="en"><trans-title>Hygiene and Sanitation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-9900</issn><issn pub-type="epub">2412-0650</issn><publisher><publisher-name>Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47470/0016-9900-2022-101-1-83-86</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-1945</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>ПРОФИЛАКТИЧЕСКАЯ ТОКСИКОЛОГИЯ И ГИГИЕНИЧЕСКОЕ НОРМИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PREVENTIVE TOXICOLOGY AND HYGIENIC STANDARTIZATION</subject></subj-group></article-categories><title-group><article-title>Динамика экспрессии гена супероксиддисмутазы-1 при разных видах лекарственной коррекции токсических нарушений в печени</article-title><trans-title-group xml:lang="en"><trans-title>Dynamics of superoxide dismutase-1 gene expression in different types of drug correction of toxic disorders in the liver</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0039-6757</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каримов</surname><given-names>Денис Олегович</given-names></name><name name-style="western" xml:lang="en"><surname>Karimov</surname><given-names>Denis O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, зав. отд. токсикологии и генетики с экспериментальной клиникой лабораторных животных ФБУН«Уфимский НИИ медицины труда и экологии человека», 450106, Уфа.</p><p>e-mail: karimovdo@gmail.com </p></bio><bio xml:lang="en"><p>MD, PhD, Head of the Department for Toxicology and Genetics with The Experimental Clinics for Laboratory Animals, Ufa Research Institute of Occupational Health and Human Ecology, Ufa, 450106, Russian Federation. </p><p>e-mail: karimovdo@gmail.com </p></bio><email xlink:type="simple">karimovdo@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7456-4787</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мухаммадиева</surname><given-names>Г. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukhammadiyeva</surname><given-names>Guzel F.</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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3510-2595</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бакиров</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakirov</surname><given-names>Akhat B.</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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1848-7959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиатдинова</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ziatdinova</surname><given-names>Munira 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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6605-9994</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Валова</surname><given-names>Я. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Valova</surname><given-names>Yana 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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2092-1021</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудояров</surname><given-names>Э. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudoyarov</surname><given-names>Eldar R.</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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5596-8180</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хуснутдинова</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khusnutdinova</surname><given-names>Nadezhda Yu.</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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1236-8246</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якупова</surname><given-names>Т. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakupova</surname><given-names>Tatyana G.</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>ФБУН «Уфимский научно-исследовательский институт медицины труда и экологии человека»</institution></aff><aff xml:lang="en"><institution>Ufa Research Institute of Occupational Health and Human Ecology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>02</month><year>2022</year></pub-date><volume>101</volume><issue>1</issue><fpage>83</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Каримов Д.О., Мухаммадиева Г.Ф., Бакиров А.Б., Зиатдинова М.М., Валова Я.В., Кудояров Э.Р., Хуснутдинова Н.Ю., Якупова Т.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Каримов Д.О., Мухаммадиева Г.Ф., Бакиров А.Б., Зиатдинова М.М., Валова Я.В., Кудояров Э.Р., Хуснутдинова Н.Ю., Якупова Т.Г.</copyright-holder><copyright-holder xml:lang="en">Karimov D.O., Mukhammadiyeva G.F., Bakirov A.B., Ziatdinova M.M., Valova Y.V., Kudoyarov E.R., Khusnutdinova N.Y., Yakupova T.G.</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.rjhas.ru/jour/article/view/1945">https://www.rjhas.ru/jour/article/view/1945</self-uri><abstract><sec><title>Введение</title><p>Введение. Для предотвращения развития токсических повреждений печени необходимы лекарственные средства, препятствующие окислительному стрессу. Актуальным и перспективным является использование анализа изменения экспрессии генов под влиянием препаратов для оценки эффективности их применения, а также для выявления молекулярно-генетических механизмов развития гепатотоксичности.</p><p>Цель исследования — изучение изменения экспрессии гена Sod1 в паренхиме печени крыс при интоксикации тетрахлорметаном с последующей терапией с помощью гепатопротекторов оксиметилурацил (ОМУ), «Мексидол» и «Гептор».</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Эксперимент поставлен на 70 особях беспородных белых крыс мужского пола. Контрольная группа получала подкожно оливковое масло; 1-я опытная группа — подкожно тетрахлорметан (ТХМ); 2-я опытная группа — ТХМ и внутрибрюшинно «Гептор»; 3-я опытная группа — ТХМ и подкожно «Мексидол»; 4-я опытная группа — ТХМ и перорально ОМУ. Забор материала проводили в два временных промежутка: 24 и 72 ч. Анализ экспрессии изучаемого гена проводили с помощью количественной ОТ-ПЦР в режиме реального времени.</p></sec><sec><title>Результаты</title><p>Результаты. Применение всех трёх препаратов через 72 ч приводило к снижению уровня экспрессии гена Sod1 при окислительном стрессе, вызванном ТХМ. Наибольшее влияние на транскрипционную активность гена Sod1 оказывал ОМУ.</p><p>Ограничения исследования обусловлены методологией проводимого анализа: поскольку экспрессия оценивалась методом количественной ОТ-ПЦР в режиме реального времени, мы оценивали транскрипционную активность гена без учёта дальнейшей посттранскрипционной регуляции экспрессии.</p></sec><sec><title>Заключение</title><p>Заключение. Результаты исследования свидетельствуют о способности изученных гепатопротекторов подавлять экспрессию гена Sod1 в печени крыс при воздействии ТХМ. Можно предположить, что изученные препараты через изменение экспрессии гена Sod1 могут участвовать в регуляции свободнорадикальных процессов при патологии печени.</p></sec><sec><title>Участие авторов</title><p>Участие авторов:</p></sec><sec><title>Каримов Д</title><p>Каримов Д.О., Мухаммадиева Г.Ф. — концепция и дизайн исследования, написание текста;</p></sec><sec><title>Бакиров А</title><p>Бакиров А.Б. — концепция и дизайн исследования, редактирование;</p></sec><sec><title>Зиатдинова М</title><p>Зиатдинова М.М., Кудояров Э.Р., Хуснутдинова Н.Ю., Якупова Т.Г. — сбор и обработка материала;</p></sec><sec><title>Валова Я</title><p>Валова Я.В. — статистическая обработка данных.</p><p>Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы декларируют отсутствие явных и потенциальных конфликтов интересов в связи с публикацией данной статьи.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело спонсорской поддержки.</p></sec><sec><title>Поступила</title><p>Поступила: 01.09.2021 / Принята к печати: 25.11.2021 / Опубликована: 09.02.2022</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Drugs are needed to counteract oxidative stress to prevent toxic liver damage. Relevant and promising is the use of analysis of changes in gene expression under the influence of drugs to assess the effectiveness of their use and identify the molecular genetic mechanisms of the development of hepatotoxicity.</p><p>The purpose of this study was to examine the effect of the drugs “Heptor”, “Mexidol”, and “Oxymethyluracil” (OMU) on the level of expression of the Sod1 gene in the liver of rats with carbon tetrachloride lesion of the liver.</p></sec><sec><title>Material and methods</title><p>Material and methods. The experiment was performed on 70 male outbred white rats. The control group received olive oil subcutaneously; first experimental group — subcutaneous carbon tetrachloride (CTC); second experimental group — CTC and intraperitoneal “Heptor”; third experimental — CTC and subcutaneous “Mexidol”; fourth experimental — CTC and oral OMU. The material was collected at two-time intervals, 24 and 72 hours. To analyze the expression of the studied gene, quantitative RT-PCR in real-time mode was carried.</p></sec><sec><title>Results</title><p>Results. The use of all three drugs after 72 h resulted in a decrease in the Sod1 gene expression level under oxidative stress induced by CTC. OMU exerted the most significant influence on the transcriptional activity of the Sod1 gene. </p></sec><sec><title>Limitations</title><p>Limitations. The limitations of the study are due to the methodology of the analysis: since expression was evaluated by quantitative RT-PCR in real time, we evaluated the transcriptional activity of the gene without taking into account further post-transcriptional regulation of expression.</p></sec><sec><title>Conclusion</title><p>Conclusion. The study results indicate the ability of the studied hepatoprotectors to suppress the expression of the Sod1 gene in rat liver when exposed to CTC. It can be assumed that the studied drugs, through a change in the expression of the Sod1 gene, can participate in the regulation of free radical processes in liver damage.</p></sec><sec><title>Contribution</title><p>Contribution: </p></sec><sec><title>Karimov D</title><p>Karimov D.O., Mukhammadiyeva G.F. — research concept and design, writing the text.</p></sec><sec><title>Bakirov A</title><p>Bakirov A.B. — research concept and design, editing.</p></sec><sec><title>Ziatdinova M</title><p>Ziatdinova M.M., Kudoyarov E.R., Khusnutdinova N.Yu., Yakupova T.G. — collection and processing of material.</p></sec><sec><title>Valova Ya</title><p>Valova Ya.V. — statistical data processing.</p><p>All co-authors — approval of the final version of the article, responsibility for the integrity of all parts of the article.</p></sec><sec><title>Acknowledgements</title><p>Acknowledgements. The study had no sponsorship.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Received</title><p>Received: September 1, 2021 / Accepted: November 25, 2021 / Published: February 09, 2022</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>токсические поражения печени</kwd><kwd>гепатопротекторы</kwd><kwd>тетрахлорметан</kwd><kwd>экспрессия</kwd><kwd>ген Sod1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>toxic liver damage</kwd><kwd>hepatoprotectors</kwd><kwd>carbon tetrachloride</kwd><kwd>expression</kwd><kwd>gene Sod1</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">Королева М.В. Экзогенно-токсический гепатит. Современный взгляд на этиологию, патогенез, клиническое течение. Лекарственный вестник. 2015; 9(2): 18-22.</mixed-citation><mixed-citation xml:lang="en">Koroleva M.V. Exogenous-toxic hepatitis. Modern view on the etiology, pathogenesis, clinical course. 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