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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">anatomy</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал анатомии и гистопатологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Anatomy and Histopathology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-7357</issn><publisher><publisher-name>N.N. Burdenko Voronezh State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18499/2225-7357-2018-7-4-94-101</article-id><article-id custom-type="elpub" pub-id-type="custom">anatomy-749</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 ИССЛЕДОВАНИЯ</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>Структурные особенности и чувствительность клеток гиппокампа к эндотелиальному сосудистому фактору роста на фоне интраназального введения наночастиц диоксида титана</article-title><trans-title-group xml:lang="en"><trans-title>Structure Features and Sensitivity of Hippocampal Cells to the Endothelial Vascular Growth Factor Against the  Background of Intranasal Administration of Titanium Dioxide Nanoparticles</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шарафутдинова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharafutdinova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шарафутдинова Люция Ахтямовна – канд. биол. наук, доцент кафедры физиологии и общей биологии биологического факультета</p><p>450076, Республика Башкортостан, г. Уфа, ул. Заки Валиди, дом 32</p></bio><bio xml:lang="en"><p>Ufa</p></bio><email xlink:type="simple">sharafla@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>Валиуллин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Valiullin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валиуллин Виктор Владимирович – д-р биол. наук, профессор кафедры гистологии</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Kazan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Башкирский государственный университет»</institution></aff><aff xml:lang="en"><institution>Bashkir State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Казанский государственный медицинский университет» Минздрава России</institution></aff><aff xml:lang="en"><institution>Kazan State Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2019</year></pub-date><volume>7</volume><issue>4</issue><fpage>94</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шарафутдинова Л.А., Валиуллин В.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Шарафутдинова Л.А., Валиуллин В.В.</copyright-holder><copyright-holder xml:lang="en">Sharafutdinova L.A., Valiullin V.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://anatomy.elpub.ru/jour/article/view/749">https://anatomy.elpub.ru/jour/article/view/749</self-uri><abstract><sec><title>Цель работы</title><p>Цель работы: изучение структурных характеристик и чувствительности клеток гиппокампа крыс к эндотелиальному фактору роста сосудов на фоне интраназального введения наночастиц (НЧ) TiO2 (рутильная форма, 40–60 нм, ежедневно, 10 мг/кг массы тела животного, 30 дней).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Исследование проведено на крысах-самцах линии Вистар (n=10). При изучении влияния исследуемых НЧ на морфологические характеристики гиппокампа животным опытной группы ежедневно интраназально вводили суспензию НЧ TiO2 (1.5 мл), крысам контрольной группы – дистиллированную воду в том же объеме. Животных выводили из эксперимента через 30 дней передозировкой диэтилового эфира и извлекали головной мозг для гистологического и электронно-микроскопического исследований. Использованы классические морфологические подходы, метод электронной микроскопии и иммуногистохимическое окрашивание антителами к маркеру чувствительности клеток – рецептору к эндотелиальному сосудистому фактору роста VEGFR-1/Flt-1.</p></sec><sec><title>Результаты</title><p>Результаты. Установлено, что на фоне интраназального введения НЧ TiO2 в пирамидном слое СА1 и СА3 полях гиппокампа наблюдается снижение плотности нейронов, уменьшение площади ядра и перикариона клеток по сравнению с контролем. Обнаружены ультраструктурные изменения, свидетельствующие о повреждении структур энергетического и белоксинтетического аппаратов нейронов. Иммуногистохимическое исследование выявило повышение чувствительности эндотелиальных клеток сосудов и макроглии гиппокампа экспериментальной группы животных к эндотелиальному фактору роста сосудов.</p></sec><sec><title>Заключение</title><p>Заключение. Интраназальное ведение НЧ TiO2 приводит к негативным изменениям структурных характеристик зон СА1, СА3 гиппокампа, ультрамикроскопических особенностей, а также к повышению чувствительности ряда клеток к VEGF, что свидетельствует об их (НЧ) возможном нейротоксическом эффекте.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>The aim</title><p>The aim: to study the structural characteristics and sensitivity of rat hippocampal cells to the endothelial growth factor of vessels against intranasal administration of nanoparticles (NP) TiO2 (rutile form, 40–60 nm, daily, 10 mg/kg animal body weight, 30 days).</p></sec><sec><title>Material and methods</title><p>Material and methods. When studying the effect of the studied NP on the morphological characteristics of the hippocampus, animals of the experimental group were intranasally injected daily with a suspension of NP TiO2 (10 mg/kg body weight, 30 days), and the rats of the control group received distilled water in the same volume. Animals were removed from the experiment after 30 days of overdose of diethyl ether and the brain was removed for histological and electron microscopic examination. We used classical morphological approaches, electron microscopy and immunohistochemical staining with antibodies to the cell sensitivity marker, the receptor for endothelial vascular growth factor VEGFR-1 / Flt-1.The classical morphological approaches, the method of electron microscopy and immunohistochemical staining with antibodies to the marker of sensitivity of the receptor cells to the endothelial vascular growth factor VEGFR-1/Flt-1 were used.</p></sec><sec><title>Results</title><p>Results. It has been established that against the background of intranasal administration of NP TiO2 in the pyramidal layer of CA1 and CA3 hippocampal fields, the density of neuronal packing decreases, the area of the nucleus and the pericarion of the cells decrease in comparison with the control. Ultrastructural changes were detected, indicating a damage to the structures of the energy and protein synthesis apparatus of neurons. Immunohistochemical study revealed an increase in the sensitivity of vascular endothelial cells and the hippocampal macroglia of the experimental group of animals to the endothelial factor of vascular growth.</p></sec><sec><title>Conclusions</title><p>Conclusions. Intranasal management of NP TiO2 leads to negative changes in the structural characteristics of the CA1, CA3 hippocampal zones, ultramicroscopic features, and also to an increase in the sensitivity of a number of cells to VEGF, which indicates their possible neurotoxic effect.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>наночастицы диоксида титана</kwd><kwd>гиппокамп</kwd><kwd>ультраструктура</kwd><kwd>VEGFR-1/Flt-1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>titanium dioxide nanoparticles</kwd><kwd>hippocampus</kwd><kwd>ultrastructure</kwd><kwd>VEGFR-1/Flt-1</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">Рославцева В. В., Салмина А. Б., Прокопенко С. В., Пожиленкова Е. А., Кобаненко И. В., Резвицкая Г. Г. Сосудистый эндотелиальный фактор роста в регуляции развития и функционирования головного мозга: новые молекулы-мишени для фармакотерапии. 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