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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">vtio</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник трансплантологии и искусственных органов</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Transplantology and Artificial Organs</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1995-1191</issn><publisher><publisher-name>Academician V.I.Shumakov National Medical Research Center of Transplantology and Artificial Organs", Ministry of Health of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15825/1995-1191-2025-2-163-170</article-id><article-id custom-type="elpub" pub-id-type="custom">vtio-1898</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>Регенеративная медицина и клеточные технологии</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Regenerative Medicine and Cell Technologies</subject></subj-group></article-categories><title-group><article-title>Лимфоцитарная РНК стимулирует физиологическую регенерацию и микроциркуляцию в щитовидной железе</article-title><trans-title-group xml:lang="en"><trans-title>Lymphocytic RNA stimulates physiological regeneration and enhances microcirculation in the thyroid gland</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4912-3111</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тишевская</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tishevskaya</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тишевская Наталья Викторовна, доктор медицинских наук, профессор кафедры нормальной физиологии имени академика Ю.М. Захарова</p><p>454092, Челябинск, ул. Воровского, д. 64</p></bio><bio xml:lang="en"><p>Natalya V. Tishevskaya</p><p>64, Vorovskogo str., Chelyabinsk, 454092</p></bio><email xlink:type="simple">natalya-tishevskaya@yandex.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>Головнева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Golovneva</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Головнева Елена Станиславовна, доктор медицинских наук, профессор кафедры нормальной физиологии имени академика Ю.М. Захарова</p><p>Челябинск</p></bio><bio xml:lang="en"><p>Elena S. Golovneva</p><p>Chelyabinsk</p></bio><email xlink:type="simple">micron30@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>Тахавиев</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Takhaviev</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тахавиев Ростислав Винерович, ассистент кафедры гистологии, эмбриологии и цитологии </p><p>Челябинск</p></bio><bio xml:lang="en"><p>Rosticlav V. Takhaviev</p><p>Chelyabinsk</p></bio><email xlink:type="simple">natalya-tishevskaya@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Южно-Уральский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural 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>12</day><month>07</month><year>2025</year></pub-date><volume>27</volume><issue>2</issue><fpage>163</fpage><lpage>170</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тишевская Н.В., Головнева Е.С., Тахавиев Р.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Тишевская Н.В., Головнева Е.С., Тахавиев Р.В.</copyright-holder><copyright-holder xml:lang="en">Tishevskaya N.V., Golovneva E.S., Takhaviev R.V.</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://journal.transpl.ru/vtio/article/view/1898">https://journal.transpl.ru/vtio/article/view/1898</self-uri><abstract><sec><title>Цель</title><p>Цель: определить характер регуляторного воздействия лимфоцитарной экзогенной РНК на регенерацию щитовидной железы.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Работа выполнена на 18 крысах-самцах породы Wistar массой тела 310–350 г (3 группы по 6 крыс в каждой группе). Группа 1 – интактные крысы; группа 2 – контрольные (6 недель физической нагрузки), группа 3 – подопытные (6 недель физической нагрузки + инъекции РНК). Суммарную РНК, выделенную из селезенки 30-дневной свиньи, вводили 4 раза по 30 мкг/100 г веса, 1 раз в неделю. Фолликулярный эпителий и сосуды оценивали с помощью морфометрии, содержание VEGF определяли иммуногистохимически с использованием специфических антител, функциональное состояние микроциркуляторного русла в щитовидной железе оценивали методом лазерной флоуметрии.</p></sec><sec><title>Результаты</title><p>Результаты. После введения РНК на 16% увеличилась относительная масса щитовидной железы, в 1,5 раза увеличилась площадь фолликулярного эпителия, в 2 раза – площадь сосудистого русла, содержание VEGF увеличилось в 2,5 раза по сравнению с интактными крысами, интенсивность микроциркуляции увеличилась на 64%, коэффициент сопротивления току крови снизился на 21%.</p></sec><sec><title>Заключение</title><p>Заключение. Введение морфогенетически активной суммарной РНК в условиях повышенного кислородного запроса способствует развитию реге- нерационной гипертрофии железистого эпителия и усиливает микроциркуляцию в щитовидной железе.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective: to investigate the regulatory effects of exogenous lymphocyte RNA on thyroid gland regeneration.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study was conducted on 18 male Wistar rats (310–350 g), divided into three groups (n = 6 per group). Group 1 – intact rats; group 2 – control rats (subjected to 6 weeks of physical activity), group 3 – experimental rats (subjected to 6 weeks of physical activity + RNA injection). Total RNA, isolated from the spleen of a 30-day-old pig, was administered four times at a dose of 30 μg/100 g body weight, once per week. Follicular epithelium and vascular structures were analyzed using morphometry, VEGF content was quantified via immunohistochemistry with specific antibodies, and thyroid microvascular function was assessed using laser flowmetry.</p></sec><sec><title>Results</title><p>Results. Following RNA administration, the relative thyroid gland mass increased by 16%, the folli- cular epithelium area expanded 1.5-fold, and the vasculature area doubled. Additionally, VEGF content increased 2.5-fold compared to intact rats, while microcirculation intensity rose by 64%, and vascular resistance decrea- sed by 21%.</p></sec><sec><title>Conclusion</title><p>Conclusion. Administration of morphogenetically active total RNA under conditions of increased oxygen demand promotes regenerative hypertrophy of the glandular epithelium and enhances microcirculation in the thyroid gland.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>РНК</kwd><kwd>регенерация</kwd><kwd>микроциркуляция</kwd><kwd>щитовидная железа</kwd></kwd-group><kwd-group xml:lang="en"><kwd>RNA</kwd><kwd>regeneration</kwd><kwd>microcirculation</kwd><kwd>thyroid gland</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">Kusakabe T, Kawaguchi A, Hoshi N, Kawaguchi R, Hoshi S, Kimura S. Thyroid-specific enhancer-binding protein/NKX2.1 is required for the maintenance of ordered architecture and function of the differentiated thyroid. 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