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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.2021-6.5.9</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-3039</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>МОРФОЛОГИЯ, ФИЗИОЛОГИЯ И ПАТОФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MORPHOLOGY, PHYSIOLOGY AND PATHOPHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Морфофункциональные изменения ткани головного мозга, печени и почек белых крыс при воздействии нанокомпозита селена, инкапсулированного в полимерную матрицу арабиногалактана</article-title><trans-title-group xml:lang="en"><trans-title>Morphofunctional changes in the tissue of the brain, liver and kidneys of white rats under the influence of selenium nanocomposite encapsulated in the polymer matrix of arabinogalactan</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0665-8060</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Titov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории биомоделирования и трансляционной медицины, </p><p>665827, г. Ангарск, 12а микрорайон, 3</p></bio><bio xml:lang="en"><p>Cand. Sc. (Biol.), Senior Research Officer at the Laboratory of Biomodeling and Translational Medicine, </p><p>12a mikrorayon 3, Angarsk 665827</p></bio><email xlink:type="simple">G57097@yandex.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/0000-0003-2536-1550</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рукавишников</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Rukavishnikov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>член-корреспондент РАН, главный научный сотрудник, </p><p>665827, г. Ангарск, 12а микрорайон, 3</p></bio><bio xml:lang="en"><p>Corresponding Member of RAS, Chief Research Officer, </p><p>12a mikrorayon 3, Angarsk 665827</p></bio><email xlink:type="simple">rvs_2010@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/0000-0003-1052-4601</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соседова</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sosedova</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, ведущий научный сотрудник, заведующая лаборатории биомоделирования и трансляционной медицины, </p><p>665827, г. Ангарск, 12а микрорайон, 3</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Leading Research Officer, Head of the Laboratory of Biomodeling and Translational Medicine,</p><p>12a mikrorayon 3, Angarsk 665827</p></bio><email xlink:type="simple">sosedlar@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/0000-0002-6100-6292</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории биомоделирования и трансляционной медицины, </p><p>665827, г. Ангарск, 12а микрорайон, 3</p></bio><bio xml:lang="en"><p>Cand. Sc. (Biol.), Senior Research Officer at the Laboratory of Biomodelling and Translational Medicine, </p><p>12a mikrorayon 3, Angarsk 665827</p></bio><email xlink:type="simple">novik-imt@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/0000-0002-6060-2471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буйнова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Buynova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборант-исследователь лаборатории биомоделирования и трансляционной медицины, </p><p>665827, г. Ангарск, 12а микрорайон, 3</p></bio><bio xml:lang="en"><p>Research Assistant at the Laboratory of Biomodelling and Translational Medicine, </p><p>12a mikrorayon 3, Angarsk 665827</p></bio><email xlink:type="simple">buyncat@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Восточно-Сибирский институт медико-экологических исследований»</institution></aff><aff xml:lang="en"><institution>East-Siberian Institute of Medical and Ecological Research</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>19</day><month>11</month><year>2021</year></pub-date><volume>6</volume><issue>5</issue><fpage>92</fpage><lpage>99</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Титов Е.А., Рукавишников В.С., Соседова Л.М., Новиков М.А., Буйнова Е.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Титов Е.А., Рукавишников В.С., Соседова Л.М., Новиков М.А., Буйнова Е.В.</copyright-holder><copyright-holder xml:lang="en">Titov E.A., Rukavishnikov V.S., Sosedova L.M., Novikov M.A., Buynova E.V.</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/3039">https://www.actabiomedica.ru/jour/article/view/3039</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. В связи с высокой биосовместимостью вещества на основе наноразмерных частиц селена, инкапсулированные в природные или синтетические полимерные матрицы, являются перспективными материалом для создания биомедицинских препаратов диагностического и терапевтического значения. Наночастицы селена (Se) успешно используются в диагностике различных типов онкозаболеваний. Кроме диагностического значения, наночастицы селена обладают собственным профилактическим и онкотерапевтическим эффектом. В данной работе проведено исследование токсичности нанокомпозита Se, инкапсулированного в полимерную матрицу арабиногалактана (SeАГ). Изучено возникновение и развитие патологического процесса в ткани головного мозга, печени и почек при подостром введении данного нанокомпозита.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: оценка токсического действия нанокомпозита селена на ткань головного мозга, печени и почек организма белых крыс.</p></sec><sec><title>Методы</title><p>Методы. В работе использовались двадцать белых беспородных крыссамцов массой 200–220 г. Животным перорально в течение 10 дней вводился раствор нанокомпозита селена в дозе 500 мкг/кг. Затем с помощью методов гистологического анализа оценивали выраженность токсического действия данного нанокомпозита на организм подопытных животных. Проводился анализ состояния ткани печени, почек и сенсомоторной коры головного мозга.</p></sec><sec><title>Результаты</title><p>Результаты. При пероральном введении данного препарата отмечается стаз крови в портальных трактах, выраженная макрофагальная реакция и диапедез лейкоцитов в ткани печени. Наблюдается изменение количества нормальных нейронов, снижение числа клеток астроглии и возрастание числа дегенеративно изменённых нейронов в ткани головного мозга. Также отмечается разрастание соединительной ткани в корковом веществе почки с формированием фиброза и снижением площади капсулы Шумлянского – Боумена.</p></sec><sec><title>Заключение</title><p>Заключение. Воздействие исследуемого нанокомпозита характеризуется развитием выраженного патологического процесса в центральной нервной и гепаторенальной системах организма. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Due to their high biocompatibility, substances based on nanosized selenium particles, encapsulated in natural or synthetic polymer matrices, are promising materials for the creation of biomedical preparations of diagnostic and therapeutic value. Selenium nanoparticles are successfully used in the diagnosis of various types of cancer. In addition to the diagnostic value, selenium nanoparticles have their own prophylactic and oncological effect. This paper presents the results of a study of the toxicity of the Se nanocomposite encapsulated in the polymer matrix of arabinogalactan (SeAG). The emergence and development of the pathological process in the tissue of the brain, liver and kidneys during subacute administration of this nanocomposite was studied.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Twenty white outbred male rats weighing 200–220 g were used in the work. Animals were orally administered a solution of the selenium nanocomposite at a dose of 500 μg per kilogram of animal body weight for 10 days. Then, using the methods of histological analysis, the severity of the biological response of the organism to the introduction of this nanocomposite was assessed. An analysis of the state of the tissue of the liver, kidneys and the sensorimotor cortex of the brain was carried out.</p></sec><sec><title>Results</title><p>Results. With the intragastric administration of this drug, there is stasis of blood in the portal tracts, a pronounced macrophage reaction and diapedesis of leukocytes in the liver tissue. There is a decrease in the number of normal neurons per unit area, a decrease in the number of astroglia cells and an increase in the number of  degeneratively altered neurons in the tissue of the sensorimotor cortex. There is also an increase in connective tissue in the cortex of the kidney, with the formation of fibrosis and a decrease in the area of the Shumlyansky – Bowman capsule.</p></sec><sec><title>Conclusion</title><p>Conclusion. The effect of the investigated nanocomposite is characterized by the development of a pronounced pathological process in the central nervous and hepatorenal systems of the body. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>нанокомпозит</kwd><kwd>селен</kwd><kwd>печень</kwd><kwd>почки</kwd><kwd>головной мозг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanocomposite</kwd><kwd>selenium</kwd><kwd>liver</kwd><kwd>kidneys</kwd><kwd>brain</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">Maiyo F, Singh M. Selenium nanoparticles: potential in cancer gene and drug delivery. Nanomedicine (Lond). 2017; 12(9): 1075-1089. doi: 10.2217/nnm-2017-0024</mixed-citation><mixed-citation xml:lang="en">Maiyo F, Singh M. Selenium nanoparticles: potential in cancer gene and drug delivery. 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