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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">pmj</journal-id><journal-title-group><journal-title xml:lang="ru">Тихоокеанский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Pacific Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-1175</issn><publisher><publisher-name>TGMU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.34215/1609-1175-2022</article-id><article-id custom-type="elpub" pub-id-type="custom">pmj-2302</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 RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Нейроглиальная активность в фокусе ишемического инсульта</article-title><trans-title-group xml:lang="en"><trans-title>Neuroglial activity in the focus of ischemic stroke</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1434-765X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калиниченко</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinichenko</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калиниченко Сергей Георгиевич – доктор медицинских наук, профессор кафедры гистологии, эмбриологии.</p><p>690002, Владивосток, пр. Острякова, 2; тел.: +7 902 524 75 50</p></bio><bio xml:lang="en"><p>Sergey G. Kalinichenko - MD, Prof. of the Department of Histology, Embryology, and Cytology.</p><p>2 Ostryakova Aven. Vladivostok 690002; tel.: +7 902 524 75 50</p></bio><email xlink:type="simple">sgkalinichenko@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1712-9348</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коробцов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korobtsov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коробцов Анатолий Владимирович – старший преподаватель кафедры гистологии, эмбриологии.</p><p>690002, Владивосток, пр. Острякова, 2; тел.: +7 (423) 298-20-21</p></bio><bio xml:lang="en"><p>Anatoly V. Korobtsov - Senior Lecturer of the Department of Histology, Embryology, and Cytology.</p><p>2 Ostryakova Aven. Vladivostok 690002; tel.: +7 (423) 298-20-21</p></bio><email xlink:type="simple">korobtsov@inbox.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/0000-0003-0844-7950</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матвеева</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Matveeva</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Матвеева Наталья Юрьевна – доктор медицинских наук, заведующий кафедрой гистологии, эмбриологии и цитологии.</p><p>690002, Владивосток, пр. Острякова, 2; тел.: +7 (423) 298-20-21</p></bio><bio xml:lang="en"><p>Natalya Yu. Matveeva - MD, Head Department of Histology, Embryology and Cytology.</p><p>2 Ostryakova Aven. Vladivostok 690002; tel.: +7 (423) 298-20-21</p></bio><email xlink:type="simple">nymatveeva@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>Матвеев</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Matveev</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Матвеев Юрий Андреевич – старший преподаватель кафедры гистологии, эмбриологии.</p><p>690002, Владивосток, пр. Острякова, 2, тел.: +7 (423) 298-20-21</p></bio><bio xml:lang="en"><p>Yuri A. Matveev - Senior Lecturer of the Department of Histology, Embryology, and Cytology.</p><p>2 Ostryakova Aven. Vladivostok 690002, tel.: +7 (423) 298-20-21</p></bio><email xlink:type="simple">yumatveev22@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тихоокеанский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pacific State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>26</day><month>03</month><year>2022</year></pub-date><volume>0</volume><issue>1</issue><fpage>72</fpage><lpage>78</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Калиниченко С.Г., Коробцов А.В., Матвеева Н.Ю., Матвеев Ю.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Калиниченко С.Г., Коробцов А.В., Матвеева Н.Ю., Матвеев Ю.А.</copyright-holder><copyright-holder xml:lang="en">Kalinichenko S.G., Korobtsov A.V., Matveeva N.Y., Matveev Y.A.</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.tmj-vgmu.ru/jour/article/view/2302">https://www.tmj-vgmu.ru/jour/article/view/2302</self-uri><abstract><sec><title>Цель</title><p>Цель: исследование динамики морфохимических модификаций глиальных клеток в неокортексе крыс при экспериментальном инсульте, вызванном постоянной окклюзией средней мозговой артерии.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Исследовали иммунолокализацию глиального нейротрофического фактора (GDNF), глиального кислого фибриллярного белка (GFAP), Iba-1 и S-100 в теменной коре крыс при постоянной окклюзии средней мозговой артерии.</p></sec><sec><title>Результаты</title><p>Результаты. Астроциты, экспрессирующие GFAP и S-100, локализуются в области пенумбры и определяют ее границы. В поздние сроки инсульта плотность астроцитов возрастает на границе с фокусом инсульта и снижается по периферии пенумбры, что ведет к смещению границ иммунореактивной перифокальной зоны и заметному ее сужению. Отмечена реверсия иммунореактивности на ранних и поздних сроках инсульта. В фокусе инсульта она характеризуется снижением экспрессии S-100 в астроцитах и появлением ее в пирамидных нейронах в 1-3 сутки ишемии. В пенумбре обнаружена противоположная тенденция к смещению локализации GDNF из нейронов в астроцитарную глию на 8-21 сутки инсульта. Iba-1-реактивная микроглия в ядре инсульта проявляет признаки активированных макрофагов: размеры клеток увеличиваются, количество и ветвление отростков редуцируются. Микроглия концентрируется в фокусе инсульта, достигая максимальных значений на 8-е сутки, и соотносится с понижением плотности астроцитов в области пенумбры.</p></sec><sec><title>Заключение</title><p>Заключение. Специфичность морфохимической альтерации глиальных клеток происходит в тесном взаимодействии с состоянием нейронов в очаге инсульта, указывает на границы пенумбры и связана с балансом различных протективных и нейродеструктивных процессов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective: To study the dynamics of morphochemical modifications in glial cells of rat neocortex under the conditions of experimental stroke, induced by means of constant occlusion of the middle brain artery.</p></sec><sec><title>Methods</title><p>Methods: We studied the immunolocalisation of glial cell-derived neurotrophic factor (GDNF), glial fibrillary acidic protein (GFAP), Iba-1 and S-100 in the rat parietal cortex during the constant occlusion of middle brain artery.</p></sec><sec><title>Results</title><p>Results: Astrocytes, expressing GFAP and S-100, are found in the penumbra area and define its borders. In the later stages of stroke, the density of astrocytes increases on the border of the stroke focus and decreases around penumbra, which leads to immunoreactive perifocal zone boarders shifting and its significant narrowing. The reversion of immunoreactivity during the early and late stages of stroke was observed. The reversion was defined by decrease in S-100-expression in astrocytes and expression presence in pyramidal neurons on the 1-3 day of ischemia in the stroke focus. The reverse tendency toward localization changes of GDNF from neurons to astrocytes was detected in penumbra on 8-21 day. Iba-1-reactive microglia at the stroke’s core shows the sings of activated macrophages - increase in the cells’ size, reduction in quantity and branching. Iba-1-reactive microglia concentrates in the stroke focus, reaching its highest point on the 8 day and corresponds to decreasing spatial density of astrocytes in the penumbra area.</p></sec><sec><title>Conclusions</title><p>Conclusions. Specificity of the morphochemical alteration of glial cells closely interacts with the condition of neurons in the stroke focus, points to the penumbra borders and connected with the balance of various protective and neurodestructive processes.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фокальный ишемический инсульт</kwd><kwd>нейротрофины</kwd><kwd>астроциты</kwd><kwd>микроглия</kwd><kwd>иммуногистохимические маркеры нейроглии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>focal ischemic stroke</kwd><kwd>neurotrophins</kwd><kwd>astrocytes</kwd><kwd>microglia</kwd><kwd>immunohistochemical markers of neuroglia</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">научное исследование выполнено при финансовой поддержке грантов ФГБОУ ВО ТГМУ Минздрава России</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">Yamagata K, Hakata K, Maeda A, Mochizuki C, Matsufuji H, Chino M, Yamori Y. 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