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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2018-3.6.3</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-1877</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>БИОХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Про- и антиоксидантная активность крови у подростков разных этнических групп</article-title><trans-title-group xml:lang="en"><trans-title>Pro- and Antioxidant Activity in the Blood of Adolescents of Different Ethnic Groups</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8591-8619</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курашова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurashova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Nadezhda A. Kurashova – Dr. Sc. (Biol.), Senior Research Officer at the Laboratory of Pathophysiology, Scientific Centre for Family Health and Human Reproduction Problems</p><p>664003, Irkutsk, ul. Timiryazeva, 16</p></bio><email xlink:type="simple">nakurashova@yandex.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>Кудеярова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudeyarova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Ekaterina A. Kudeyarova – Student</p><p>664003, Irkutsk, ul. Nizhnyaya Naberezhnaya, 6</p></bio><email xlink:type="simple">ekaterina.kudeyarova2015@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научный центр проблем здоровья семьи и репродукции человека»</institution></aff><aff xml:lang="en"><institution>Scientific Centre for Family Health and Human Reproduction Problems</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Педагогический институт, ФГБОУ ВО «Иркутский государственный университет»</institution></aff><aff xml:lang="en"><institution>Pedagogical Institute, Irkutsk State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>05</day><month>01</month><year>2019</year></pub-date><volume>3</volume><issue>6</issue><fpage>23</fpage><lpage>28</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Курашова Н.А., Кудеярова Е.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Курашова Н.А., Кудеярова Е.А.</copyright-holder><copyright-holder xml:lang="en">Kurashova N.A., Kudeyarova E.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.actabiomedica.ru/jour/article/view/1877">https://www.actabiomedica.ru/jour/article/view/1877</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. В исследовании представлен сравнительный анализ параметров липопероксидации и антиоксидантной защиты у мальчиков подросткового возраста различных этнических групп Восточной Сибири. Соотношение активности окислительных процессов и антиоксидантных компонентов не только отражает, но и во многом определяет интенсивность метаболизма и адаптационных возможностей организма подростков русской и бурятской популяций.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: выявить особенности системы перекисного окисления липидов и антиоксидантной защиты у подростков разных этнических групп, проживающих в Восточной Сибири.</p></sec><sec><title>Методы</title><p>Методы. Подросткам проведено стандартное клинико-лабораторное обследование и осуществлён осмотр эндокринологом-андрологом. Вкачестве материала длябиохимических исследований использовали сыворотку крови и гемолизат. Концентрацию продуктов перекисного окисления липидов, общую антиокислительную активность крови и её компонентов определяли на спектрофлуорофотометре «SHIMADZU-1501» (Япония). При анализе межгрупповых различий для независимых выборок использовали параметрический t-критерий Стьюдента.</p></sec><sec><title>Результаты</title><p>Результаты. Обследовано 55 мальчиков бурятской популяции (26 мальчиков с эндокринными нарушениями, 29 практически здоровых подростков) и 81 мальчик русской популяции (46 мальчиков с эндокринными нарушениями, 35 практически здоровых подростков) в возрасте 14–17 лет. У практически здоровых подростков бурятской популяции выявлено статистически значимое снижение первичных и конечных продуктов липопероксидации, а также компонентов антиоксидантной защиты (концентраций ретинола, α-токоферола, уровня общей антиокислительной активности крови и восстановленного глутатиона) на фоне повышенной активности супероксиддисмутазы, в сравнении с подростками русской популяции. У подростков бурятского этноса с эндокринными нарушениями, в сравнении с практически здоровыми подростками, выявлено значимое повышение концентрации вторичных липоперекисных продуктов и</p><p>снижение уровня окисленного глутатиона. У русских подростков с эндокринными нарушениями установлено значимое повышение уровня первичных продуктов, а также активности супероксиддисмутазы на фоне снижения концентрации восстановленного глутатиона и жирорастворимых антиоксидантов по сравнению с практически здоровыми мальчиками.</p></sec><sec><title>Заключение</title><p>Заключение. Ключевым вопросом в понимании регуляторной и адаптивной роли реакций перекисного окисления липидов в организме является представление о существовании определённого баланса с системой антиоксидантной защиты. Установленные особенности процессов перекисного окисления липидов и антиоксидантной защиты у мальчиков подросткового возраста разных этнических групп характеризуют разную степень активности метаболических процессов и могут быть обусловлены этнической принадлежностью.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Processes of antioxidant protection in different ethnicities, living in the same geographical conditions, are of undoubted scientific interest. The ratio of activity of oxidative processes and antioxidant components not only reflects, but also largely determines the metabolism and adaptive capabilities of the organism. The key issue in understanding the regulatory and adaptive role of lipid peroxidation reactions in the body is the idea of the existence of a certain balance with the antioxidant defense system.</p></sec><sec><title>Aims</title><p>Aims: to study the features of the system of lipid peroxidation and antioxidant protection in adolescents of different ethnicities, living in Eastern Siberia.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Parameters of lipid peroxidation and antioxidant protection were determined in the blood serum by spectrophotometric methods.</p></sec><sec><title>Results</title><p>Results. We found that adolescent Buryat boys had statistically significant decrease in primary and secondary products of lipid peroxidation: ketodienes and conjugated trienes, malondialdehyde, and components of antioxidant protection: retinol, α-tocopherol, the level of total antioxidant activity of blood and reduced glutathione, in comparison with Caucasian adolescents. In Caucasian adolescents with endocrine disorders, there was a statistically significant increase in the level of ketodienes and conjugated trienes, as well as the activity of superoxide dismutase against the background of a decrease of reduced glutathione, tocopherol, and retinol. We revealed a significant increase in the concentration of ketodienes and conjugated trienes and a decrease of the oxidized glutathione in adolescents with endocrine disorders in comparison with healthy adolescents of Buryat ethnicity.</p></sec><sec><title>Conclusions</title><p>Conclusions. Studying of the processes of lipid peroxidation and antioxidant system of the organism can be used as an additional criterion for complex examination of practically healthy adolescents, which significantly enhance the representation about the adaptation possibilities of the organism to external conditions and can become a basis for effective examination of reproductive health in the future.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>подростки</kwd><kwd>репродуктивное здоровье</kwd><kwd>липопероксидация</kwd><kwd>антиоксиданты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>adolescents</kwd><kwd>reproductive health</kwd><kwd>lipoperoxidation</kwd><kwd>antioxidants</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">Ключевые слова: подростки; репродуктивное здоровье; липопероксидация; антиоксиданты</mixed-citation><mixed-citation xml:lang="en">Agaeva SE, Alibekova SS. 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