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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2023-2-78-87</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-5224</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Уровень мРНК генов антиоксидантной системы и активность НАДФН-генерирующих ферментов при ротенон-индуцированном паркинсонизме у крыс</article-title><trans-title-group xml:lang="en"><trans-title>mRNA level of antioxidant genes and activity of NADPH-generating enzymes in rotenone-induced parkinsonism in rats</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8855-5515</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крыльский</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kryl’skii</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крыльский Евгений Дмитриевич – канд. биол. наук, доцент кафедры медицинской биохимии и микробиологии, </p><p>394018, г. Воронеж, Университетская пл., 1</p></bio><bio xml:lang="en"><p>1, Universitetskaya Sq., Voronezh, 394018</p></bio><email xlink:type="simple">evgenij.krylsky@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>Разуваев</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Razuvaev</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Разуваев Григорий Андреевич – студент, кафедра медицинской биохимии и микробиологии, </p><p>394018, г. Воронеж, Университетская пл., 1</p></bio><bio xml:lang="en"><p>1, Universitetskaya Sq., Voronezh, 394018</p></bio><email xlink:type="simple">storiesofgames@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/0000-0002-9660-3054</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попова</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попова Татьяна Николаевна – д-р биол. наук, профессор, декан медико-биологического факультета, </p><p>394018, г. Воронеж, Университетская пл., 1</p></bio><bio xml:lang="en"><p>1, Universitetskaya Sq., Voronezh, 394018</p></bio><email xlink:type="simple">biomed-popova@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>Нихаев</surname><given-names>Л. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikhaev</surname><given-names>L. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нихаев Леонид Евгеньевич – студент, кафедра медицинской биохимии и микробиологии, </p><p>394018, г. Воронеж, Университетская пл., 1</p></bio><bio xml:lang="en"><p>1, Universitetskaya Sq., Voronezh, 394018</p></bio><email xlink:type="simple">nikhaev.l@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>Акинина</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Akinina</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акинина Алина Игоревна – студент, кафедра медицинской биохимии и микробиологии, </p><p>394018, г. Воронеж, Университетская пл., 1</p></bio><bio xml:lang="en"><p>1, Universitetskaya Sq., Voronezh, 394018</p></bio><email xlink:type="simple">alina_0611@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Воронежский государственный университет (ВГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2023</year></pub-date><volume>22</volume><issue>2</issue><fpage>78</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Крыльский Е.Д., Разуваев Г.А., Попова Т.Н., Нихаев Л.Е., Акинина А.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Крыльский Е.Д., Разуваев Г.А., Попова Т.Н., Нихаев Л.Е., Акинина А.И.</copyright-holder><copyright-holder xml:lang="en">Kryl’skii E.D., Razuvaev G.A., Popova T.N., Nikhaev L.E., Akinina A.I.</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://bulletin.ssmu.ru/jour/article/view/5224">https://bulletin.ssmu.ru/jour/article/view/5224</self-uri><abstract><sec><title>Цель</title><p>Цель. Исследование уровня мРНК генов антиоксидантных ферментов и регулирующих их экспрессию транскрипционных факторов Nrf2 и Foxo1, активности глюкозо-6-фосфатдегидрогеназы (Г6ФДГ) и никотинамидадениндинуклеотидфосфат-изоцитратдегидрогеназы (НАДФ-ИДГ), а также анализ корреляционных связей между данными параметрами, состоянием оксидативного статуса и моторно-координационными показателями у крыс с ротенон-индуцированным паркинсонизмом.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследование было выполнено на крысах самцах Вистар в возрасте 4–6 мес и массой 200–250 г. Паркинсонизм моделировали путем подкожного введения в течение 10 сут ротенона в дозе 2,5 мг/кг. Для подтверждения развития патологии использовали моторно-координационные тесты и гистологические методы с окрашиванием коры полушарий и полосатого тела головного мозга гематоксилином и эозином. Состояние оксидативного статуса оценивали на основании концентрации диеновых конъюгатов, карбонильных остатков аминокислот в белках и α-токоферола. Активность ферментов исследовали спектрофотометрически по образованию НАДФН. Для анализа уровня мРНК генов использовали метод полимеразной цепной реакции в реальном времени.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе исследования у крыс опытной группы по сравнению с контролем наблюдалось возрастание в сыворотке крови и мозге концентрации диеновых конъюгатов, карбонильных остатков аминокислот, а также α-токоферола, что могло быть связано с перераспределением данного соединения между тканями при развитии патологии. Для животных с экспериментальным паркинсонизмом, кроме этого, было характерно снижение уровня мРНК генов Sod1, Gpx1, Gsr, Gsta2, Nfe2l2 и Foxo1, а также активности Г6ФДГ и НАДФ-ИДГ. У крыс с экспериментальным паркинсонизмом была найдена отрицательная корреляция активности НАДФ-ИДГ в мозге с концентрацией α-токоферола в сыворотке и положительная – с уровнем мРНК Gpx1 и Foxo1 в полосатом теле головного мозга. Уровень окислительно-модифицированных белков в мозге животных с патологией отрицательно коррелировал с концентрацией мРНК Gsta2 в полосатом теле, а удельная активность Г6ФДГ в сыворотке характеризовалась наличием положительной взаимосвязи с силой хвата.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные свидетельствуют, что угнетение транскрипции генов антиоксидантных ферментов и регуляторных факторов Nrf2 и Foxo1 вносило существенный вклад в развитие окислительного стресса при БП. Наблюдаемое снижение активности Г6ФДГ и НАДФ-ИДГ уменьшало доступность НАДФН – лимитирующего фактора для функционирования глутатионовой антиоксидантной системы, что также, очевидно, являлось важным патогенетическим фактором прогрессирования патологии. Наряду со снижением в тканях мозга содержания мРНК генов антиоксидантных ферментов, у крыс с паркинсонизмом возрастала концентрация α-токоферола, что могло быть результатом развития дисбаланса в функционировании антиоксидантной системы.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To analyze the mRNA level of genes encoding antioxidant enzymes and the transcription factors Nrf2 and Foxo1 regulating their expression and the activity of glucose-6-phosphate dehydrogenase (G6PDH) and NADPdependent isocitrate dehydrogenase (NADP-IDH) and assess the correlation between these parameters, oxidative status, and motor coordination parameters in rats with rotenone-induced parkinsonism.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study was performed on male Wistar rats aged 4–6 months and weighing 200–250 g. Parkinsonism was modeled by subcutaneous administration of rotenone for 10 days at a dose of 2.5 mg / kg. To confirm the development of the pathology, motor coordination tests and histological staining of the cerebral cortex and striatum with hematoxylin and eosin were used. The oxidative status was analyzed based on the levels of conjugated dienes, carbonyl amino acid residues in proteins, and α-tocopherol. The enzyme activity was studied spectrophotometrically by the formation of NADPH. Real-time PCR was used to analyze the level of gene mRNA.</p></sec><sec><title>Results</title><p>Results. During the study, an increase in serum and brain concentrations of conjugated dienes, carbonyl amino acid residues, and α-tocopherol was observed in the experimental group of rats compared to the controls. It could be associated with the redistribution of this compound between tissues during pathology development. The animals with experimental parkinsonism, in addition, were characterized by a decrease in the mRNA level of the Sod1, Gpx1, Gsr, Gsta2, Nfe2l2, and Foxo1 genes, as well as the activity of G6PDH and NADP-IDH. In the rats with experimental parkinsonism, a negative correlation of NADPH-IDH activity in the brain with serum α-tocopherol level and a positive correlation with Gpx1 and Foxo1 mRNA levels in the striatum were found. The level of oxidatively modified proteins in the brain of the animals with PD was negatively correlated with the concentration of Gsta2 mRNA in the striatum, while the specific activity of G6PDH in the serum was characterized by the positive relationship with grip strength.</p></sec><sec><title>Conclusion</title><p>Conclusion. The data obtained indicate that the inhibition of transcription of the genes encoding antioxidant enzymes and regulatory factors Nrf2 and Foxo1 contributed significantly to the development of oxidative stress in PD. A decrease in the activity of G6PDH and NADP-IDH led to a decrease in the availability of NADPH, which is a limiting factor in the functioning of the glutathione antioxidant system. Obviously, the inhibition of G6PDH and NADP-IDH was also an important pathogenic factor in the progression of the pathology. Along with a decrease in the content of antioxidant gene mRNA in the brain tissues, the level of α-tocopherol increased in the rats with parkinsonism, which could be the result of an imbalance in the functioning of antioxidant system.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>болезнь Паркинсона</kwd><kwd>окислительный стресс</kwd><kwd>антиоксидантная система</kwd><kwd>глюкозо-6-фосфатдегидрогеназа</kwd><kwd>НАДФ-изоцитратдегидрогеназа</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Parkinson’s disease</kwd><kwd>oxidative stress</kwd><kwd>antioxidant system</kwd><kwd>glucose-6-phosphate dehydrogenase</kwd><kwd>NADPdependent isocitrate dehydrogenase</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">Blauwendraat C., Nalls M.A., Singleton A.B. The genetic architecture of Parkinson’s disease. Lancet Neurol. 2020;19(2):170– 178. 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