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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15372/SSMJ20200204</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-369</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>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOMEDICINE</subject></subj-group></article-categories><title-group><article-title>Морфологические нарушения нейронов теменной коры и гиппокампа крыс в динамике ступенчатой субтотальной ишемии головного мозга</article-title><trans-title-group xml:lang="en"><trans-title>Morphological disturbances of rat parietal cortex and hippocampus neurons in the dynamics steady subtotal ischemia of the brain</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>Бонь</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bon</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елизавета Игоревна Бонь, к.б.н.</p><p>230009, г. Гродно, ул. Горького, 80</p></bio><bio xml:lang="en"><p>Elizaveta I. Bon, candidate of biological science</p><p>230009, Grodno, Gorkogo str., 80</p></bio><email xlink:type="simple">asphodela@list.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>Максимович</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimovich</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталия Евгеньевна Максимович, д.м.н., профессор</p><p>230009, г. Гродно, ул. Горького, 80</p></bio><bio xml:lang="en"><p>Natalia E. Maksimovich, doctor of medical science, professor</p><p>230009, Grodno, Gorkogo str., 80</p></bio><email xlink:type="simple">mne@grsmu.by</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>Зиматкин</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zimatkin</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Михайлович Зиматкин, д.б.н, профессор</p><p>230009, г. Гродно, ул. Горького, 80</p></bio><bio xml:lang="en"><p>Sergey M. Zimatkin, doctor of biological science, professor</p><p>230009, Grodno, Gorkogo str., 80</p></bio><email xlink:type="simple">smzimatkin@mail.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>Валько</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Valko</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никита Андреевич Валько</p><p>230009, г. Гродно, ул. Горького, 80</p></bio><bio xml:lang="en"><p>Nikita A. Valko</p><p>230009, Grodno, Gorkogo str., 80</p></bio><email xlink:type="simple">mailbox@grsmu.bu</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>Кот</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kot</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктория Николаевна Кот</p><p>230009, г. Гродно, ул. Горького, 80</p></bio><bio xml:lang="en"><p>Victoria N. Kot</p><p>230009, Grodno, Gorkogo str., 80</p></bio><email xlink:type="simple">mailbox@grsmu.bu</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гродненский государственный медицинский университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Grodno State Medical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>01</day><month>05</month><year>2020</year></pub-date><volume>40</volume><issue>2</issue><fpage>31</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бонь Е.И., Максимович Н.Е., Зиматкин С.М., Валько Н.А., Кот В.Н., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Бонь Е.И., Максимович Н.Е., Зиматкин С.М., Валько Н.А., Кот В.Н.</copyright-holder><copyright-holder xml:lang="en">Bon E.I., Maksimovich N.E., Zimatkin S.M., Valko N.A., Kot V.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://sibmed.elpub.ru/jour/article/view/369">https://sibmed.elpub.ru/jour/article/view/369</self-uri><abstract><p>Цель работы – анализ изменений морфологических характеристик нейронов филогенетически разных отделов коры головного мозга (теменной коры и гиппокампа) крыс в различные периоды в динамике ступенчатой субтотальной экспериментальной церебральной ишемии. Материал и методы. Эксперименты выполнены на 42 самцах беспородных белых крыс. Ступенчатую субтотальную церебральную ишемию осуществляли следующим образом: сначала перевязывали одну общую сонную артерию, моделируя при этом частичную ишемию, затем с интервалом 1 сутки (подгруппа 1), 3 суток (подгруппа 2) или 7 суток (подгруппа 3) – вторую общую сонную артерию. Результаты. Микроскопическое изучение размеров, формы, степени хроматофилии цитоплазмы и содержания рибонуклеопротеинов в пирамидных нейронах филогенетически разных отделов коры головного мозга показало зависимость тяжести повреждения головного мозга от интервала между прекращением кровотока по обеим сонным артериям. Адаптация лучше проходила при 7-суточном интервале между перевязками, в то время как при перевязке с интервалом 1 сутки степень морфологических изменений была максимальна, что указывает на недостаточность ресурсов для реализации адаптационных механизмов.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the work is to analyze changes in the morphological characteristics of neurons of phylogenetical different parts of the cerebral cortex (parietal cortex and hippocampus) of rats at different periods in the dynamics of stepwise subtotal experimental cerebral ischemia. Methods. The experiments were performed on 42 males of outbred white rats. Step subtotal cerebral ischemia was performed as follows: first, one common carotid artery was ligated, simulating partial ischemia. Then, with an interval of 1 day (subgroup 1), 3 days (subgroup 2) or 7 days (subgroup 3), the second common carotid artery was ligated. Results. A microscopic study of the size, shape, degree of chromatophilia of the cytoplasm and the content of ribonucleoproteins in pyramidal neurons of phylogenetically different parts of the cerebral cortex have shown the dependence of the severity of brain damage on the interval between the cessation of blood flow in both carotid artery. Adaptation was better with a 7-day interval between dressings, while the ligation with an interval of 1 day, the degree of morphological changes was maximum indicating a lack of resources for the implementation of adaptation mechanisms.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ишемия</kwd><kwd>мозг</kwd><kwd>нейроны</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ischemia</kwd><kwd>brain</kwd><kwd>neurons</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">Бонь Е.И., Максимович Н.Е. 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