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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">morpho</journal-id><journal-title-group><journal-title xml:lang="ru">Морфологические ведомости</journal-title><trans-title-group xml:lang="en"><trans-title>Morphological newsletter</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-3171</issn><issn pub-type="epub">2686-8741</issn><publisher><publisher-name>Private Medical University REAVIZ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/mv-mn.2024.32(2).805</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-805</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>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ CТРУКТУРНЫХ КОМПОНЕНТОВ ЖЕЛУДОЧКОВ ГОЛОВНОГО МОЗГА ОВАРИЭКТОМИРОВАННЫХ КРЫС ПОСЛЕ ВВЕДЕНИЯ ПРОГЕСТЕРОНА</article-title><trans-title-group xml:lang="en"><trans-title>THE OVARIECTOMIZED RATS BRAIN VENTRICLES STRUCTURAL COMPONENTS AFTER PROGESTERONE INJECTION STUDY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9282-1329</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фоканов</surname><given-names>Кирилл Сергеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Fokanov</surname><given-names>Kirill S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>Student</p></bio><email xlink:type="simple">fks-76@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/0000-0001-9769-6355</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьева</surname><given-names>Алена Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Solov'yova</surname><given-names>Alyona V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка</p></bio><bio xml:lang="en"><p>Studentin</p></bio><email xlink:type="simple">sol-al01@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/0000-0002-1397-3122</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>Юлия Ивановна</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>Yuliya I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка</p></bio><bio xml:lang="en"><p>Studentin</p></bio><email xlink:type="simple">julia.smu2811@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/0000-0002-0741-6549</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Морозова</surname><given-names>Софья Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>Sof'ya M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студентка</p></bio><bio xml:lang="en"><p>Studentin</p></bio><email xlink:type="simple">sofya.morozova.20026k.ru@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/0000-0001-5387-4287</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фоканова</surname><given-names>Ольга Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Fokanova</surname><given-names>Ol'ga A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент, кандидат медицинский наук, доцент кафедры гистологии, цитологии и эмбриологии</p></bio><bio xml:lang="en"><p>Docent, Candidate of Medical Sciences, Associate Professor of the Department of the Histology, Cytology and Embryology</p></bio><email xlink:type="simple">oafokanova-76@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/0000-0002-2479-2036</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кораблева</surname><given-names>Татьяна Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Korablyova</surname><given-names>Tat'yana V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент, кандидат медицинский наук, доцент кафедры гистологии, цитологии и эмбриологии</p></bio><bio xml:lang="en"><p>Docent, Candidate of Medical Sciences, Associate Professor of the Department of the Histology, Cytology and Embryology</p></bio><email xlink:type="simple">korablevat@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/0000-0002-4908-5370</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Изман</surname><given-names>Анна Алексеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Izman</surname><given-names>Anna A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>преподаватель кафедры гистологии, цитологии и эмбриологии</p></bio><bio xml:lang="en"><p>Lecturerin of the Department of the Histology, Cytology and Embryology</p></bio><email xlink:type="simple">annaizman@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ярославский государственный медицинский университет, Ярославль</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl' State Medical University, Yaroslavl'</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2024</year></pub-date><volume>32</volume><issue>2</issue><elocation-id>ID-805 статья опубликована - Article is published</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Фоканов К.С., Соловьева А.В., Смирнова Ю.И., Морозова С.М., Фоканова О.А., Кораблева Т.В., Изман А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Фоканов К.С., Соловьева А.В., Смирнова Ю.И., Морозова С.М., Фоканова О.А., Кораблева Т.В., Изман А.А.</copyright-holder><copyright-holder xml:lang="en">Fokanov K.S., Solov'yova A.V., Smirnova Y.I., Morozova S.M., Fokanova O.A., Korablyova T.V., Izman A.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.morpholetter.com/jour/article/view/805">https://www.morpholetter.com/jour/article/view/805</self-uri><abstract><p>Прогестерон и его нейростероидные производные играют фундаментальную роль в обеспечении трофических процессов гормонально зависимых тканей, которые в свою очередь имеют ключевое значение в развитии и функционировании центральной нервной системы. Концентрация прогестерона в головном мозге в 20 раз выше, чем плазме крови. Данных литературы о влиянии прогестерона на морфологию хориоидных сплетений желудочков мозга нами не было найдено. В связи с этим важно изучение особенностей сосудистых сплетений желудочков головного мозга под влиянием прогестерона. Цель работы: изучить морфологическую организацию сосудистых сплетений желудочков головного мозга овариэктомированных крыс линии Вистар под влиянием прогестерона. Объектом для морфологического исследования послужили 20 самок крыс линии Вистар половозрелого возраста. Все животные разделялись на две группы: 10 самок в контрольной группе и 10 самок после овариэктомии с инъекцией препарата прогестерона в дозе 250 мг на один кг веса животного. Для оценки объема желудочков головного мозга выбирали срезы, на которых их площадь сечения была максимальной, значения показателя определяли на оцифрованных микрофотографиях при увеличении в 4 раза путем обведения границ желудочков головного мозга и последующих расчетов в морфометрической компьютерной программе ImageJ. Определение объемных фракций сосудистых сплетений в желудочках головного мозга проводили стереологически на серийных срезах с помощью окулярной сетки с 60-ю равноудаленными узлами пересечения при увеличении в 400 раз. В результате проведенного исследования выявлено, что прогестерон оказывает существенное влияние на структуру сосудистых сплетений всех желудочков головного мозга у овариэктомированных животных. В боковом желудочке происходит рост максимальной площади, относительный объем сосудистых сплетений снижается, объемная фракция сосудов внутри сплетения увеличивается, объемная фракция клеток уменьшается, объемная фракция соединительной ткани имеет тенденцию к росту. Для III и IV желудочков характерна аналогичная динамика.</p></abstract><trans-abstract xml:lang="en"><p>Progesterone and its neurosteroid derivatives play a fundamental role in ensuring trophic processes in hormone-dependent tissues, which in turn are of key importance in the development and functioning of the central nervous system. The concentration of progesterone in the brain is 20 times higher than in blood plasma. We did not find any literature data on the effect of progesterone on the morphology of the choroid plexus of the cerebral ventricles. In this regard, it is important to study the characteristics of the choroid plexus of the cerebral ventricles under the influence of progesterone. Objective: to study the morphological organization of the choroid plexus of the cerebral ventricles of ovariectomized Wistar rats under the influence of progesterone. The object of the morphological study was 20 female Wistar rats of sexually mature age. All animals were divided into two groups: 10 females in the control group and 10 females after ovariectomy with injection of progesterone at a dose of 250 mg per kg of animal weight. To assess the volume of the cerebral ventricles, sections were selected with their maximum cross-sectional area, the values ​​​​of the indicator were determined on digitized microphotographs at a magnification of 4 times by outlining the boundaries of the cerebral ventricles and subsequent calculations in the morphometric computer program ImageJ. Determination of volume fractions of vascular plexuses in the cerebral ventricles was carried out stereologically on serial sections using an ocular grid with 60 equally spaced intersection nodes at a magnification of 400 times. As a result of the study, it was revealed that progesterone has a significant effect on the structure of the vascular plexuses of all cerebral ventricles in ovariectomized animals. In the lateral ventricle, the maximum area increases, the relative volume of the vascular plexuses decreases, the volume fraction of the vessels inside the plexus increases, the volume fraction of the cells decreases, and the volume fraction of the connective tissue tends to increase. Similar dynamics are characteristic of the third and fourth ventricles.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>желудочки головного мозга</kwd><kwd>крысы</kwd><kwd>сосудистые сплетения</kwd><kwd>овариэктомия</kwd><kwd>прогестерон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>brain ventricles</kwd><kwd>rats</kwd><kwd>vascular plexuses</kwd><kwd>ovariectomy</kwd><kwd>progesteroneats</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">Korzhevskyij DE. Strukturnye osnovy stanovleniya gematolikvornogo bar'era u cheloveka. Uspekhi fiziologicheskikh nauk. 2002;4(23):43-52. 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