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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">problendo</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Эндокринологии</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0375-9660</issn><issn pub-type="epub">2308-1430</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/probl13579</article-id><article-id custom-type="elpub" pub-id-type="custom">problendo-13579</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>Экспериментальная эндокринология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Experimental endocrinology</subject></subj-group></article-categories><title-group><article-title>Возобновляющаяся гипогликемия и структура сосудистых сплетений боковых желудочков головного мозга крыс</article-title><trans-title-group xml:lang="en"><trans-title>Recurrent hypoglycemia and the structure of the choroid plexus of the lateral ventricles of the rat brain</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5387-4287</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фоканова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokanova</surname><given-names>О. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фоканова Ольга Анатольевна, к.м.н., доцент, кафедра гистологии, цитологии и эмбриологии</p><p>150000, Ярославль, ул. Революционная, 5</p></bio><bio xml:lang="en"><p>Olga A. Fokanova, MD</p><p>5 Revolutionary street, 150000 Yaroslavl</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>Кораблёва</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korableva</surname><given-names>Т. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кораблёва Татьяна Владимировна, к.м.н., доцент, кафедра гистологии, цитологии и эмбриологии</p><p>Ярославль</p></bio><bio xml:lang="en"><p>Tatiana V. Korableva, MD</p><p>Yaroslavl</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/0000-0002-0684-9887</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Медведева</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedeva</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Медведева Наталия Борисовна, к.б.н., доцент, кафедра биологической химии</p><p>Ярославль</p></bio><bio xml:lang="en"><p>Natalia B. Medvedeva, PhD</p><p>Yaroslavl</p></bio><email xlink:type="simple">medvedeva.natalija@rambler.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/0000-0002-6802-2850</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Телушкин</surname><given-names>П. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Telushkin</surname><given-names>P. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Телушкин Павел Константинович, д.б.н., доцент, кафедра биологической химии</p><p>Ярославль</p></bio><bio xml:lang="en"><p>Pavel K. Telushkin, PhD</p><p>Yaroslavl</p></bio><email xlink:type="simple">teluschkin61@mail.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</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2026</year></pub-date><volume>71</volume><issue>6</issue><fpage>50</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фоканова О.А., Кораблёва Т.В., Медведева Н.Б., Телушкин П.К., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Фоканова О.А., Кораблёва Т.В., Медведева Н.Б., Телушкин П.К.</copyright-holder><copyright-holder xml:lang="en">Fokanova О.A., Korableva Т.V., Medvedeva N.B., Telushkin P.K.</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.probl-endojournals.ru/jour/article/view/13579">https://www.probl-endojournals.ru/jour/article/view/13579</self-uri><abstract><sec><title>ОБОСНОВАНИЕ</title><p>ОБОСНОВАНИЕ. Возобновляющаяся гипогликемия возникает при инсулинотерапии пациентов с сахарным диабетом и является существенной причиной нарушений функций мозга у этих больных. Большое значение в обеспечении деятельности головного мозга имеет функционирование гематоликворного барьера и производство спинномозговой жидкости (СМЖ). Основной объем СМЖ образуют сосудистые сплетения боковых желудочков (БЖ) головного мозга и глимфатическая система мозга. Роль сосудистых сплетений в развитии нарушений функций мозга при гипогликемии недостаточно изучена.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Цель настоящей работы — определение структуры сосудистых сплетений боковых желудочков головного мозга при возобновляющейся гипогликемии.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Объектом исследования были крысы, перенесшие 9 гипогликемических состояний после введения инсулина (с интервалом 3 дня, уровень глюкозы в крови 1,4–1,8 ммоль/л) и интактные животные. Оценивали объем БЖ и объемные фракции сосудистых сплетений в БЖ: относительный объем и общую фракцию сосудов, фракции клеток и соединительной ткани. Также регистрировали морфологические изменения эпителия сосудистого сплетения и нервной ткани перивентрикулярных пространств.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. У животных, перенесших серию гипогликемий, увеличивается максимальная площадь сечения БЖ, относительный объем сосудистых сплетений БЖ и объемная фракция сосудов, приходящаяся на объем сосудистого сплетения БЖ. Объемная фракция клеток, приходящаяся на объем сосудистого сплетения БЖ у крыс с возобновляющейся гипогликемией, уменьшается. При морфологическом исследовании у этих животных регистрируются дистрофические изменения эпителиоцитов сосудистого сплетения и зоны дистрофических изменений в ткани головного мозга, окружающей желудочки.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Таким образом, возобновляющаяся гипогликемия приводит к увеличению максимальной площади сечения БЖ и относительного объема сосудистых сплетений, а также дистрофическим изменениям клеток эпителия сосудистых сплетений и нейронов перивентрикулярных пространств. Поскольку гипогликемия наблюдается в ходе лечения пациентов с сахарным диабетом неоднократно, выявленные изменения могут стать причиной нарушения когнитивных функций и развития деменции у этих больных.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>BACKGROUND</title><p>BACKGROUND. Recurrent hypoglycemia occurs during insulin therapy in patients with diabetes mellitus and is a significant cause of brain dysfunction in these patients. The functioning of the hematocerebrospinal fluid barrier and the production of cerebrospinal fluid (CSF) are of great importance in ensuring brain activity. The main volume of CSF is formed by the choroid plexus of the lateral ventricles (LV) of the brain and the glymphatic system of the brain. The role of the choroid plexus in the development of brain dysfunction in hypoglycemia has not been sufficiently studied.</p></sec><sec><title>OBJECTIVE</title><p>OBJECTIVE. The aim of this work was to determine the structure of the choroid plexuses of the lateral ventricles of the brain during recurrent hypoglycemia.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS. The object of the study were rats that had undergone 9 hypoglycemic states after insulin administration (with an interval of 3 days, the blood glucose level of 1.4–1.8 mmol/L) and intact animals. The volume of the LV and volume fractions of the choroid plexuses in the LV were estimated: the relative volume and total fraction of vessels, fractions of cells and connective tissue. Morphological changes in the epithelium of the choroid plexus and nervous tissue of the periventricular spaces were also recorded.</p></sec><sec><title>RESULTS</title><p>RESULTS. In animals that had undergone a series of hypoglycemias, the maximum cross-sectional area of the LV, the relative volume of the choroid plexuses of the LV and the volume fraction of vessels per volume of the choroid plexus of the LV increase. The volume fraction of cells per volume of the choroid plexus of the ventricles decreases in rats with recurrent hypoglycemia. Morphological examination of these animals reveals dystrophic changes in the epithelial cells of the choroid plexus and zones of dystrophic changes in the brain tissue surrounding the ventricles.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. Thus, recurrent hypoglycemia leads to an increase in the maximum cross-sectional area of the LV and the relative volume of the choroid plexuses, as well as dystrophic changes in the epithelial cells of the choroid plexuses and neurons of the periventricular spaces. Since hypoglycemia is repeatedly observed during the treatment of patients with diabetes mellitus, the identified changes may cause cognitive impairment and the development of dementia in these patients.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>возобновляющаяся гипогликемия</kwd><kwd>сосудистые сплетения мозга</kwd><kwd>боковые желудочки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>recurrent hypoglycemia</kwd><kwd>choroid plexus</kwd><kwd>lateral ventricles</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Плановая НИР ФГБОУ ВО ЯГМУ Минздрава России</funding-statement></funding-group></article-meta></front><back><ref-list><ref id="cit1"><mixed-citation publication-type="commun" publication-format="web"><name><surname>Dedov</surname> <given-names>I.I.</given-names></name>, <name><surname>Shestakova</surname> <given-names>M.V.</given-names></name>, <name><surname>Maiorov</surname> <given-names>A.Yu.</given-names></name>, i dr. <article-title>Sakharnyi diabet 2 tipa u vzroslykh.</article-title> <source>Klinicheskie rekomendatsii Rossiiskoi assotsiatsii endokrinologov.</source> - <year>2022</year>. https://rae-org.ru/system/files/documents/pdf/cr_dm_ii_ad_2022.pdf</mixed-citation></ref><ref id="cit2"><element-citation><name><surname>Antonova</surname> <given-names>K. 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