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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">27439</article-id><article-id pub-id-type="doi">10.32607/actanaturae.27439</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</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">Cannula Implantation Reduces the Severity of the Beta Amyloid Effect on Peroxidized Lipids and Glutathione Levels in the Brain of BALB/c Mice</article-title><trans-title-group xml:lang="ru"><trans-title>Имплантация канюли снижает выраженность эффекта бета-амилоида на уровень перекисных липидов и глутатиона в мозге мышей BALB/c</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mukhina</surname><given-names>K. A.</given-names></name><name xml:lang="ru"><surname>Мухина</surname><given-names>К. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>I-Yu-Popova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mitkevich</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Митькевич</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>I-Yu-Popova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4137-0940</contrib-id><name-alternatives><name xml:lang="en"><surname>Popova</surname><given-names>I. Yu.</given-names></name><name xml:lang="ru"><surname>Попова</surname><given-names>И. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>I-Yu-Popova@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Engelhardt Institute of Molecular Biology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт молекулярной биологии им. В.А. Энгельгардта РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт теоретической и экспериментальной биофизики РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-11-12" publication-format="electronic"><day>12</day><month>11</month><year>2024</year></pub-date><volume>16</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>51</fpage><lpage>59</lpage><history><date date-type="received" iso-8601-date="2024-05-31"><day>31</day><month>05</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-09-17"><day>17</day><month>09</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Mukhina K.A., Mitkevich V.A., Popova I.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Мухина К.А., Митькевич В.А., Попова И.Ю.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Mukhina K.A., Mitkevich V.A., Popova I.Y.</copyright-holder><copyright-holder xml:lang="ru">Мухина К.А., Митькевич В.А., Попова 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/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/27439">https://actanaturae.ru/2075-8251/article/view/27439</self-uri><abstract xml:lang="en"><p>Sporadic Alzheimer’s disease (sAD) is the most common of neurodegenerative disorders. The lack of effective therapy indicates that the mechanisms of sAD development remain poorly understood. To investigate this pathology in animals, intracerebroventricular injection of β-amyloid peptide (Aβ) using a Hamilton syringe, either during stereotactic surgery or through a pre-implanted cannula, is used. In this study, we analyzed the effect of chronic cannula implantation on the severity of Aβ effects at the behavioral, histological, and biochemical levels. The results showed that the local damage to neural tissue caused by cannulation has no bearing on the effect of Aβ on animal behavior and the microglial parameters of the unilateral hippocampus two weeks after the Aβ administration. However, cannula implantation fundamentally modifies some biochemical markers of the oxidative stress that occurs in the brain tissue in response to Aβ administration. Thus, the presence of a cannula reduces the severity of the Aβ impact on the levels of peroxidized lipids and glutathione two- and 10-fold, respectively. It is important to note that the detected changes are chronic and systemic. This is known because the homogenate of the entire contralateral (in relation to the cannula implantation site) hemisphere was analyzed, and the analysis was performed two weeks after implantation. At the same time, cannulation does not affect the rate of reactive oxygen species production. The obtained data indicate that chronic implantation of a cannula into the brain of experimental animals fundamentally distorts some parameters of oxidative stress in the neural tissue, which are widely used to assess the severity of experimental Alzheimer’s-type diseases.</p></abstract><trans-abstract xml:lang="ru"><p>Болезнь Альцгеймера является наиболее распространенным нейродегенеративным заболеванием. Отсутствие эффективной терапии указывает на то, что механизмы развития этой патологии недостаточно изучены. Для исследования спорадической формы болезни Альцгеймера используется введение бета-амилоида (Аβ) в желудочки мозга животных с помощью шприца Гамильтона либо во время стереотаксической операции, либо через предварительно имплантированную канюлю. В данной работе исследовали влияние хронической имплантации канюли на выраженность эффектов Аβ на поведенческом, гистологическом и биохимическом уровнях. Показано, что локальное повреждение нервной ткани в результате канюлизации не влияет на поведение животных и параметры микроглии унилатерального гиппокампа через 2 недели после введения Аβ. Однако имплантация канюли значительно модифицирует некоторые биохимические маркеры окислительного стресса, возникающего в тканях мозга в ответ на введение Аβ. Так, наличие канюли уменьшает выраженность эффекта Аβ на уровень перекисных липидов и глутатиона – в 2 и 10 раз соответственно. Важно, что обнаруженные изменения носят хронический и системный характер, поскольку анализировали гомогенат всего контралатерального (по отношению к месту имплантации канюли) полушария и этот анализ проводили через 2 недели после имплантации. При этом канюлизация не влияет на текущую скорость продукции активных форм кислорода. Полученные данные указывают на то, что хроническая имплантация канюли в мозг экспериментальных животных значительно искажает некоторые параметры окислительного стресса в нервной ткани, широко используемые для оценки развития экспериментальной патологии альцгеймеровского типа.</p></trans-abstract><kwd-group xml:lang="en"><kwd>amyloid toxicity</kwd><kwd>immunohistochemistry</kwd><kwd>microglia</kwd><kwd>reactive oxygen species</kwd><kwd>glutathione</kwd><kwd>lipid peroxides</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>амилоидная токсичность</kwd><kwd>иммуногистохимия</kwd><kwd>микроглия</kwd><kwd>активные формы кислорода</kwd><kwd>глутатион</kwd><kwd>перекисные липиды</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд (грант)</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation (grand)</institution></institution-wrap></funding-source><award-id>19-74-30007</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Takizawa C., Thompson P.L., van Walsem A., Faure C., Maier W.C. // J. 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