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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">36985</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2024-28-3-36985</article-id><article-id pub-id-type="edn">FZDMOW</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>PHYSIOLOGY. EXPERIMENTAL PHYSIOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ФИЗИОЛОГИЯ. ЭКСПЕРИМЕНТАЛЬНАЯ ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Proliferation and apoptosis features of ovarian follicles after local irradiation with electrons and platelet-rich plasma administration</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности пролиферации и апоптоза овариальных фолликулов после локального облучения электронами и введения плазмы, обогащенной тромбоцитами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8447-2600</contrib-id><contrib-id contrib-id-type="spin">5157-0177</contrib-id><name-alternatives><name xml:lang="en"><surname>Demyashkin</surname><given-names>Grigory</given-names></name><name xml:lang="ru"><surname>Демяшкин</surname><given-names>Григорий</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>doc. med. sci., leading researcher at the Scientific and Educational Resource Center "Innovative Technologies of Immunophenotyping, Digital Spatial Profiling and Ultrastructural Analysis" of the Patrice Lumumba Peoples' Friendship University of Russia; Head of the Department of Pathomorphology of the National Medical Research Center for Radiology of the Ministry of Health of the Russian Federation</p></bio><bio xml:lang="ru"><p>док. мед. наук, ведущий научный сотрудник Научно-образовательного ресурсного центра «Инновационные технологии иммунофенотипирования, цифрового пространственного профилирования и ультраструктурного анализа» Российского университета дружбы народов имени Патриса Лумумбы, заведующий отделом патоморфологии Национального медицинского исследовательского центра радиологии Минздрава РФ</p></bio><email>dr.dga@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-2361-7618</contrib-id><contrib-id contrib-id-type="spin">2847-2984</contrib-id><name-alternatives><name xml:lang="en"><surname>Murtazalieva</surname><given-names>Zaira</given-names></name><name xml:lang="ru"><surname>Муртазалиева</surname><given-names>Заира</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student of ITMB Sechenov University</p></bio><bio xml:lang="ru"><p>аспирант ИТМиБ Сеченовского университета</p></bio><email>ZARIA.ALIEVA.90@BK.RU</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-2268-3838</contrib-id><contrib-id contrib-id-type="spin">5784-9384</contrib-id><name-alternatives><name xml:lang="en"><surname>Pugacheva</surname><given-names>Ekaterina</given-names></name><name xml:lang="ru"><surname>Пугачева</surname><given-names>Екатерина</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student of ITMB Sechenov University</p></bio><bio xml:lang="ru"><p>аспирант ИТМиБ Сеченовского университета</p></bio><email>rouzella@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6235-1020</contrib-id><contrib-id contrib-id-type="spin">9485-7722</contrib-id><name-alternatives><name xml:lang="en"><surname>Vadyukhin</surname><given-names>Matvey</given-names></name><name xml:lang="ru"><surname>Вадюхин</surname><given-names>Матвей Анатольевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>student at the Institute of Clinical Medicine named after N.V. Sklifosovsky</p></bio><bio xml:lang="ru"><p>студент Института клинической медицины им. Н.В. Склифосовского</p></bio><email>vma20@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3065-0755</contrib-id><contrib-id contrib-id-type="spin">2637-5894</contrib-id><name-alternatives><name xml:lang="en"><surname>Bimurzaeva</surname><given-names>Makka</given-names></name><name xml:lang="ru"><surname>Бимурзаева</surname><given-names>Макка</given-names></name></name-alternatives><bio xml:lang="en"><p>student at the Institute of Clinical Medicine named after N.V. Sklifosovsky</p></bio><bio xml:lang="ru"><p>студент Института клинической медицины им. Н.В. Склифосовского</p></bio><email>bimakka@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-9681-5704</contrib-id><contrib-id contrib-id-type="spin">9590-8578</contrib-id><name-alternatives><name xml:lang="en"><surname>Milovanova</surname><given-names>Aigul</given-names></name><name xml:lang="ru"><surname>Милованова</surname><given-names>Айгуль</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>student at the Institute of Clinical Medicine named after N.V. Sklifosovsky</p></bio><bio xml:lang="ru"><p>студент Института клинической медицины им. Н.В. Склифосовского</p></bio><email>Ovezberdiyevaayka@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-0651-9711</contrib-id><contrib-id contrib-id-type="spin">5877-3869</contrib-id><name-alternatives><name xml:lang="en"><surname>Dengina</surname><given-names>Tamara</given-names></name><name xml:lang="ru"><surname>Деньгина</surname><given-names>Тамара</given-names></name></name-alternatives><bio xml:lang="en"><p>student at the Institute of Clinical Medicine named after N.V. Sklifosovsky</p></bio><bio xml:lang="ru"><p>студент Института клинической медицины им. Н.В. Склифосовского</p></bio><email>larobrine@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National Medical Radiological Research Center</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр радиологии</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Sechenov University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный университет им. И.М. Сеченова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2024</year></pub-date><volume>28</volume><issue>3</issue><issue-title xml:lang="en">PHYSIOLOGY. EXPERIMENTAL PHYSIOLOGY</issue-title><issue-title xml:lang="ru">ФИЗИОЛОГИЯ. ЭКСПЕРИМЕНТАЛЬНАЯ ФИЗИОЛОГИЯ</issue-title><fpage>311</fpage><lpage>318</lpage><history><date date-type="received" iso-8601-date="2023-12-07"><day>07</day><month>12</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2024-07-27"><day>27</day><month>07</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Demyashkin G., Murtazalieva Z., Pugacheva E., Vadyukhin M., Bimurzaeva M., Milovanova A., Dengina T.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Демяшкин Г., Муртазалиева З., Пугачева Е., Вадюхин М.А., Бимурзаева М., Милованова А., Деньгина Т.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Demyashkin G., Murtazalieva Z., Pugacheva E., Vadyukhin M., Bimurzaeva M., Milovanova A., Dengina T.</copyright-holder><copyright-holder xml:lang="ru">Демяшкин Г., Муртазалиева З., Пугачева Е., Вадюхин М.А., Бимурзаева М., Милованова А., Деньгина Т.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/36985">https://journals.rudn.ru/medicine/article/view/36985</self-uri><abstract xml:lang="en"><p style="text-align: justify;"><italic>Relevance. </italic>The ovary is strongly radiosensitive organ. Exposure to ionizing radiation can lead to decreased reproductive function, including infertility. One of the promising regenerative substrates is platelet-rich plasma, which contains a large number of biologically active substances. It is necessary to conduct research in this direction in order to determine the dose-dependent effects of electron irradiation on the cell cycle of oocytes and granulosa cells and to assess the risks of developing radiation-induced ovarian failure. It is important to develop methods for the prevention of acute post-radiation complications, which may include platelet-rich plasma injections. <italic>Aim:</italic> immunohistochemical analysis of ovarian structures’ cell cycle after administration of platelet-rich plasma in a model of radiation-induced ovarian failure. <italic>Materials and methods</italic>. We divided the animals (Wistar rats; n=40) into four groups: I — control (n=10); II (n=10) — electron irradiation; III (n=10) — administration of platelet-rich plasma before electron irradiation; IV (n=10) — administration of platelet-rich plasma. A morphological assessment and immunohistochemical (Ki-67, caspase 3) examination of the ovaries were performed. <italic>Results and Discussion</italic>. Number of Ki-67-positive granulosa cells were sharply decreased in group II, but in theca cells the level of expression of this marker exceeded control values. Besides, the number of caspase-3-stained cells increased sharply, mainly due to granulosa cells. The immunohistochemical patterns described were less pronounced in the pre-radiation platelet-rich plasma group. <italic>Conclusion.</italic> Components of platelet-rich plasma have radioprotective properties, maintaining the cell cycle of follicular cells and reducing the depth and range of radiation damage to the ovary after 20 Gy electron exposure, confirmed by the Ki‑67 and caspase 3 expression levels.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;"><italic>Актуальность.</italic> Яичник является одним из наиболее радиочувствительных органов. Воздействие ионизирующего излучения может приводить к снижению репродуктивной функции вплоть до бесплодия. Одним из многообещающих регенеративных субстратов является плазма, обогащенная тромбоцитами (PRP), которая содержит в своем составе большое количество биологически активных веществ. Необходимо проведение исследований в этом направлении с целью определения дозозависимых эффектов облучения электронами на пролиферацию и апоптоз ооцитов и клеток гранулезы, а также оценки рисков развития радиационно‑ индуцированной овариальной недостаточности. Важное значение имеет разработка методов профилактики острых постлучевых осложнений, в рамках которой возможно применение плазмы, обогащенной тромбоцитами. <italic>Цель: </italic>иммуногистохимическая оценка пролиферации и апоптоза структур яичника после введения плазмы, обогащенной тромбоцитами, в модели радиационно‑ индуцированной овариальной недостаточности. <italic>Материалы и методы. </italic>Крысы породы Вистар (n=40) были поделены на группы: I — контрольная (n=10); II (n=10) — облучение электронами; III (n=10) — введение плазмы, обогащенной тромбоцитами, до облучения электронами; IV (n=10) — введение плазмы, обогащенной тромбоцитами. Проводили морфологическую оценку и иммуногистохимическое исследование яичников с антителами к Ki‑67 и каспазе‑3. <italic>Результаты и обсуждение. </italic>В фолликулах яичников II‑ой группы отмечали резкое снижение доли Ki‑67‑позитивных гранулезных клеток, однако в тека‑клетках уровень экспрессии этого маркера превышал контрольные значения. В то же время, количество каспаза‑3‑окрашенных клеток резко возрастало, преимущественно за счет гранулезных клеток. Описанные иммуногистохимические паттерны были менее выражены в группе предлучевого введения плазмы, обогащенной тромбоцитами. <italic>Выводы.</italic> Компоненты плазмы, обогащенной тромбоцитами, обладают радиопротективным свойством, поддерживая пролиферативно‑а поптотический баланс фолликулярных клеток и снижая глубину и диапазон лучевого поражения яичника при воздействии фракционного локального облучения электронами в суммарной дозе 20 Гр, подтвержденной уровнями экспрессии Ki‑67 и каспазы‑3.</p></trans-abstract><kwd-group xml:lang="en"><kwd>ionizing radiation</kwd><kwd>electrons</kwd><kwd>ovofolliculogenesis</kwd><kwd>proliferation</kwd><kwd>apoptosis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ионизирующее излучение</kwd><kwd>электроны</kwd><kwd>овофолликулогенез</kwd><kwd>пролиферация</kwd><kwd>апоптоз</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ahmed Y, Khan AMH, Rao UJ, Shaukat F, Jamil A, Hasan SM et al. 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