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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55959/MSU0137-0952-16-80-2-2</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-1505</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Возрастные изменения тканевой антиоксидантной защиты у лесной мышовки (Sicista betulina, Rodentia) на северной периферии ареала обитания</article-title><trans-title-group xml:lang="en"><trans-title>Age-related changes in the tissue antioxidant system of the northern birch mouse (Sicista betulina, Rodentia) at the northern periphery of its habitat area</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4740-2141</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антонова</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Antonova</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антонова Екатерина Петровна – канд. биол. наук, ст. науч. сотр. лаборатории экологической физиологии животных Института биологии Карельского научного центра РАН</p><p>Тел.: 8-8142-57-31-07</p><p>185910, г. Петрозаводск, ул. Пушкинская, д. 11</p><p>85910, г. Петрозаводск, пр. Ленина, д. 33</p></bio><bio xml:lang="en"><p>11 Pushkinskaya Street, Petrozavodsk, Karelia, 185910</p></bio><email xlink:type="simple">antonova88ep@mail.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/0000-0002-7085-4154</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Илюха</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyukha</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илюха Виктор Александрович – доктор биол. наук, ст. науч. сотр. Института биологии внутренних вод имени И.Д. Папанина Российской академии наук</p><p>Тел.: 8-48547-24-349</p><p>85910, г. Петрозаводск, пр. Ленина, д. 33</p></bio><bio xml:lang="en"><p>33 Lenina Street, Petrozavodsk, 185910</p><p>Yaroslavl Oblast, Necouz Region, 152742</p></bio><email xlink:type="simple">ilyukha.62@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9196-1808</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якимова</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakimova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якимова Алина Евгеньевна – канд. биол. наук, ст. науч. сотр. лаборатории зоологии</p><p>Тел.: 8-8142-57-31-40</p><p>185910, г. Петрозаводск, ул. Пушкинская, д. 11</p></bio><bio xml:lang="en"><p>11 Pushkinskaya Street, Petrozavodsk, Karelia, 185910</p><p>33 Lenina Street, Petrozavodsk, 185910</p></bio><email xlink:type="simple">angelina73@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5064-3731</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баишникова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Baishnikova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баишникова Ирина Валерьевна – канд. биол. наук, ст. науч. сотр. лаборатории экологической физиологии животных</p><p>Тел.: 8-8142-57-31-07</p><p>185910, г. Петрозаводск, ул. Пушкинская, д. 11</p></bio><bio xml:lang="en"><p>11 Pushkinskaya Street, Petrozavodsk, Karelia, 185910</p></bio><email xlink:type="simple">iravbai@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8708-7775</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильина</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyina</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильина Татьяна Николаевна – канд. биол. наук, ст. науч. сотр. лаборатории экологической физиологии животных</p><p>Тел.: 8-8142-57-31-07</p><p>185910, г. Петрозаводск, ул. Пушкинская, д. 11</p></bio><bio xml:lang="en"><p>11 Pushkinskaya Street, Petrozavodsk, Karelia, 185910</p></bio><email xlink:type="simple">ilyinatn59@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биологии, Федеральный исследовательский центр «Карельский научный центр Российской академии наук»; Петрозаводский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences; Petrozavodsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Петрозаводский государственный университет; Институт биологии внутренних вод имени И.Д. Папанина, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Petrozavodsk State University; Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences Borok</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт биологии, Федеральный исследовательский центр «Карельский научный центр Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biology, Karelian Research Centre of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>14</day><month>07</month><year>2025</year></pub-date><volume>80</volume><issue>2</issue><fpage>80</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Антонова Е.П., Илюха В.А., Якимова А.Е., Баишникова И.В., Ильина Т.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Антонова Е.П., Илюха В.А., Якимова А.Е., Баишникова И.В., Ильина Т.Н.</copyright-holder><copyright-holder xml:lang="en">Antonova E.P., Ilyukha V.A., Yakimova A.E., Baishnikova I.V., Ilyina T.N.</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://vestnik-bio-msu.elpub.ru/jour/article/view/1505">https://vestnik-bio-msu.elpub.ru/jour/article/view/1505</self-uri><abstract><p>Проведено исследование уровня тканевых антиоксидантов у молодых и взрослых (зимовавших) особей зимоспящего вида – лесной мышовки (Sicista betulina Pallas, 1779), обитающей вблизи северной границы ареала распространения (Республика Карелия). Показана гетерохронность возрастных изменений показателей антиоксидантной системы: активность каталазы в почках снижалась, а в сердце, напротив, увеличивалась с возрастом; у взрослых особей лесной мышовки активность супероксиддисмутазы в почках, сердечной и скелетной мышце выше, чем у молодых животных. У молодых особей отмечен более низкий уровень низкомолекулярных антиоксидантов – восстановленного глутатиона (почки и сердце) и α-токоферола (сердце и скелетная мышца) – по сравнению с зимовавшими животными, что, вероятно, связано не только с активным ростом и высокой степенью подвижности молодых особей в период расселения, но и с напряженностью физиологических систем в связи с обитанием в условиях Севера и подготовкой к зимней спячке. Обнаружены более высокие уровни восстановленного глутатиона и α-токоферола в сердце зимовавших особей лесной мышовки по сравнению с другими зимовавшими представителями отряда Rodentia, обитающими в Республике Карелия, что подчеркивает важную роль низкомолекулярных антиоксидантов в защите тканей от окислительных повреждений у этого вида.</p></abstract><trans-abstract xml:lang="en"><p>The study was aimed at determining tissue antioxidant levels in juvenile and adult the northern birch mouse (Sicista betulina Pallas, 1779) at the northern periphery of its range (Republic of Karelia). Our results are indicating a mixed pattern of age-related changes in the antioxidant defense system: aging was accompanied by a decrease the catalase activity in the kidneys as well as an increase in heart catalase activity and kidney, cardiac and skeletal muscle superoxide dismutase activity. The levels of low-molecular antioxidants – reduced glutathione (GSH) (kidneys and heart) and α-tocopherol (heart and skeletal muscle) were lower in the of the northern birch mouse young compared to adult animals, which is probably associated not only with the active growth and high mobility of the juvenile mouse during the dispersal period, but also with the stress of physiological systems due to living in the Northern conditions and preparing for hibernation. Higher levels of GSH and α-tocopherol were found in the hearts of adult northern birch mouse compared to other small mammal species of the order Rodentia living in the Republic of Karelia, which indicates the important role of low-molecular weight antioxidants in protecting tissues against oxidative injury in this species.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>млекопитающие</kwd><kwd>антиоксиданты</kwd><kwd>зимоспящие</kwd><kwd>старение</kwd><kwd>гомеостаз</kwd><kwd>витамин Е</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mammals</kwd><kwd>antioxidants</kwd><kwd>hibernators</kwd><kwd>aging</kwd><kwd>homeostasis</kwd><kwd>vitamin E</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают признательность сотрудникам лаборатории экологической физиологии животных Института биологии КарНЦ РАН за помощь в проведении исследования. Финансовое обеспечение исследований осуществлялось из средств федерального бюджета на выполнение государственного задания КарНЦ РАН (FMEN-2022-0003) и ИБВВ (№124032500016-4).</funding-statement><funding-statement xml:lang="en">This study was carried out under state assignment to Karelian Research Centre of the Russian Academy of Sciences (FMEN-2022-0003) and Papanin Institute for Biology of Inland Waters Russian Academy of Sciences (№124032500016-4).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Sohal R.S., Orr W.C. The redox stress hypothesis of aging. Free. Radic. Biol. Med. 2012;52(3):539–555.</mixed-citation><mixed-citation xml:lang="en">Sohal R.S., Orr W.C. The redox stress hypothesis of aging. Free. Radic. Biol. 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