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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">18955</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2018-22-2-171-182</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>EXPERIMENTAL PHYSIOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНАЯ ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">ACTIVE DYNAMICS OF THE ENZYMES OF THE ANTIRADICAL PROTECTION AND THE GENERAL ANTIOXIDATIVE ACTIVITY BY THE DEVELOPMENT OF THE EXPERIMENTAL ISCHEMIC REPERFUSION OF LIVER</article-title><trans-title-group xml:lang="ru"><trans-title>ДИНАМИКА АКТИВНОСТИ ФЕРМЕНТОВ АНТИРАДИКАЛЬНОЙ ЗАЩИТЫ И ОБЩЕЙ АНТИОКСИДАНТНОЙ АКТИВНОСТИ ПРИ РАЗВИТИИ ЭКСПЕРИМЕНТАЛЬНОГО ИШЕМИЧЕСКИ-РЕПЕРФУЗИОННОГО ПОРАЖЕНИЯ ПЕЧЕНИ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Popov</surname><given-names>K A</given-names></name><name xml:lang="ru"><surname>Попов</surname><given-names>К А</given-names></name></name-alternatives><email>ilya.bh@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bykov</surname><given-names>I M</given-names></name><name xml:lang="ru"><surname>Быков</surname><given-names>И М</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD, MD, Head of the department of Fundamental and Clinical Biochemistry of The Kuban State Medical University of the Ministry of Health of Russia</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, профессор, заведующий кафедрой фундаментальной и клинической биохимии федерального государственного бюджетного образовательного учреждения высшего образования «Кубанский государственный медицинский университет» Министерства здравоохранения Российской Федерации</p></bio><email>ilya.bh@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ermakova</surname><given-names>G A</given-names></name><name xml:lang="ru"><surname>Ермакова</surname><given-names>Г А</given-names></name></name-alternatives><email>ilya.bh@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsymbalyuk</surname><given-names>I Y</given-names></name><name xml:lang="ru"><surname>Цымбалюк</surname><given-names>И Ю</given-names></name></name-alternatives><email>ilya.bh@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kuban State Medical University of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Кубанский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2018</year></pub-date><volume>22</volume><issue>2</issue><issue-title xml:lang="en">VOL 22, NO2 (2018)</issue-title><issue-title xml:lang="ru">ТОМ 22, №2 (2018)</issue-title><fpage>171</fpage><lpage>182</lpage><history><date date-type="received" iso-8601-date="2018-07-26"><day>26</day><month>07</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Popov K.A., Bykov I.M., Ermakova G.A., Tsymbalyuk I.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Попов К.А., Быков И.М., Ермакова Г.А., Цымбалюк И.Ю.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Popov K.A., Bykov I.M., Ermakova G.A., Tsymbalyuk I.Y.</copyright-holder><copyright-holder xml:lang="ru">Попов К.А., Быков И.М., Ермакова Г.А., Цымбалюк И.Ю.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/18955">https://journals.rudn.ru/medicine/article/view/18955</self-uri><abstract xml:lang="en"><p>The purpose of the study: to research the active changes in several enzymes of the antioxidative protection within the dynamical development of the liver reperfusion in rats. Materials and methods: the study has been performed on 95 white non-lineal male rats with the mass of 240-280 g divided into groups, the biological material of which has been sampled within 5-20 minutes of the ischemic period and 5-20 minutes of the reperfusion period with the interval of 5 minutes. To evaluate the changes of the antioxidative system the activity of the superoxide dismutase, the erythrocyte catalase and the liver homogenate as well as the general antioxidative activity have been determined. Results: the performed study has demonstrated the imbalance development for the relation between the activity of catalase and superoxide dismutase by the development of the ischemic reperfusion syndrome with the change of this relation to the prevalence of the catalase activity on the systemic level and the superoxide dismutase activity on the organic level after the circulatory restoration. Besides the increase in activity of the studied enzymes from the erythrocyte, meal by 2 times in comparison with the control group has been determined especially at the ischemic period as well as the tendencies to the progressive activity decrease of the same enzymes in the liver tissue. The general antioxidative activity in the period of ischemic reperfusion has been decreasing to the fifth minute of ischemia by 2 times and has lasted on the same level (0.04-0.05 mg/l of vitamin C in terms of 1 gram of homogenate protein) during the entire experiment. Conclusion: the received results have demonstrated the possibility for the evaluation of the functional state for the system of oxidative restorative homeostasis in an animal by ischemic reperfusion of the liver against the background of the lowered general antioxidative activity. It was marked also the necessity of the metabolic support of this link within the system of non-specific resistance for the correction of the developing disorders.</p></abstract><trans-abstract xml:lang="ru"><p>Цель: изучение изменений активности некоторых ферментов антиоксидантной защиты в динамике развития ишемически-реперфузионного повреждения печени у крыс. Материалы и методы: исследование проведено на 95 белых нелинейных крысах-самцах массой 240-280 грамм, разделенных на группы животных, биологический материал которых забирался в течение 5-20 минут ишемического периода и 5-20 минут реперфузионного периода с интервалом 5 минут. Для оценки изменений антиоксидантной системы определяли активность супероксиддисмутазы и каталазы эритроцитов и гомогената печени, а также общую антиоксидантную активность. Результаты: проведенные исследования показали развитие дисбаланса соотношения активности каталазы и супероксиддисмутазы при развитии ишемически-реперфузионного синдрома со сдвигом данного соотношения в сторону преобладания каталазной активности на системном и супероксиддисмутазной на органном уровнях после восстановления кровотока. Кроме того, отмечается увеличение активности исследуемых ферментов эритроцитарной взвеси до 2-х раз относительно контроля, особенно в ишемический период, и тенденции к прогрессирующему снижению активности этих же ферментов в ткани печени. Общая антиоксидантная активность в ишемически-реперфузионный период снижается уже к 5-й минуте ишемии в 2 раза и сохраняется на том же уровне (0,04-0,05 мг/л витамина С в пересчете на 1 грамм белка гомогената) в течение всего эксперимента. Заключение: полученные результаты показывают возможность оценки функционального состояния системы окислительно-восстановительного гомеостаза животного при ишемически-реперфузионном повреждении печени, а вместе со сниженной общей антиоксидантной активностью указывают на необходимость метаболической поддержки данного звена системы неспецифической резистентности для коррекции развивающихся нарушений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>liver</kwd><kwd>ischemia</kwd><kwd>reperfusion</kwd><kwd>antioxidative system</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>печень</kwd><kwd>ишемия</kwd><kwd>реперфузия</kwd><kwd>антиоксидантная система</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Donadon M., Molinari A.F., Corazzi F., Rocchi L., Zito P., Cimino M., Costa G., Raimondi F., Torzilli G. 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