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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">mes</journal-id><journal-title-group><journal-title xml:lang="ru">Экстремальная биомедицина</journal-title><trans-title-group xml:lang="en"><trans-title>Extreme Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3033-8964</issn><issn pub-type="epub">3033-8972</issn><publisher><publisher-name>Centre for Strategic Planning of the Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47183/mes.2021.023</article-id><article-id custom-type="elpub" pub-id-type="custom">mes-139</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Пул гемопоэтических стволовых клеток в периферической крови хронически облученных лиц в отдаленном периоде</article-title><trans-title-group xml:lang="en"><trans-title>Peripheral blood hematopoietic stem cell pool in individuals chronically exposed to radiation over a long-term period</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котикова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotikova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алиса Игоревна Котикова</p><p>ул. Воровского, д. 68, корп. А, г. Челябинск, 454141</p></bio><bio xml:lang="en"><p>Alisa I. Kotikova</p><p>Vorovskogo, 68, korp. А, Chelyabinsk, 454141</p></bio><email xlink:type="simple">kotikovaalisa@gmail.com</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>Блинова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blinova</surname><given-names>Е. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Воровского, д. 68, корп. А, г. Челябинск, 454141</p></bio><bio xml:lang="en"><p>Vorovskogo, 68, korp. А, Chelyabinsk, 454141</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аклеев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Akleyev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Воровского, д. 68, корп. А, г. Челябинск, 454141</p></bio><bio xml:lang="en"><p>Vorovskogo, 68, korp. А, Chelyabinsk, 454141</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский научно-практический центр радиационной медицины Федерального медико-биологического агентства; Челябинский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Research Center for Radiation Medicine; Chelyabinsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2024</year></pub-date><volume>23</volume><issue>3</issue><fpage>5</fpage><lpage>10</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Котикова А.И., Блинова Е.А., Аклеев А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Котикова А.И., Блинова Е.А., Аклеев А.В.</copyright-holder><copyright-holder xml:lang="en">Kotikova A.I., Blinova Е.А., Akleyev A.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://www.extrememedicine.ru/jour/article/view/139">https://www.extrememedicine.ru/jour/article/view/139</self-uri><abstract><p>У жителей прибрежных сел реки Течи, подвергавшихся хроническому радиационному воздействию, отмечают изменения клеточного состава периферической крови в отдаленном периоде, что может быть следствием структурных и функциональных нарушений в пуле гемопоэтических стволовых клеток (ГСК) и клеток-предшественников. Целью работы было оценить количественные характеристики пула CD34+-клеток периферической крови у хронически облученных лиц в отдаленном периоде. Через 60 лет после начала облучения обследовано 153 человека, которых разделили на четыре группы: лиц, облученных в период внутриутробного и постнатального развития (средняя поглощенная постнатальная доза составила 570 мГр); лиц, облученных только постнатально (средняя поглощенная постнатальная доза составила 790 мГр), а также две группы сравнения, в которых поглощенные постнатальные дозы облучения красного костного мозга (ККМ) не превышали 70 мГр. Оценку абсолютного и относительного количества CD34+-клеток в периферической крови у хронически облученных лиц проводили методом проточной цитометрии. В группе лиц, облученных в период внутриутробного и постнатального развития, не выявлено изменение количества CD34+-клеток относительно группы сравнения, возрастная зависимость также не зарегистрирована. При этом отмечено значимое снижение абсолютного количества ГСК и клеток-предшественников с увеличением дозы облучения ККМ. В группе лиц, облученных только постнатально, обнаружено значимое увеличение показателей CD34+-клеток периферической крови относительно группы сравнения (для абсолютного количества p = 0,004; для относительного — p = 0,009), отмечено дозозависимое увеличение ГСК и клеток-предшественников в периферической крови (для абсолютного количества p = 0,02; для относительного — p = 0,03), при этом зарегистрировано снижение данного типа клеток с возрастом (для абсолютного количества р = 0,02, для относительного — p = 0,04).</p></abstract><trans-abstract xml:lang="en"><p>Changes in the peripheral blood cellular composition were observed in the long term period in the residents of the Techa riverside villages chronically exposed to radiation, which may be the consequence of structural and functional disorders in the pool of hematopoietic stem cells (HSC) and progenitor cells. Therefore, the study was aimed to quantify peripheral blood CD34+ cell pool in individuals chronically exposed to radiation over a long-term period. Sixty years after the onset of exposure, a total of 153 individuals were examined, who were divided into four groups: individuals exposed in utero and postnatally (the average postnatal absorbed dose was 570 mGy); individuals exposed only postnatally (the average postnatal absorbed dose was 790 mGy), and two comparison groups, in which the average postnatal absorbed dose to red bone marrow did not exceed 70 mGy. Absolute and relative peripheral blood CD34+ cell counts in chronically exposed individuals were assessed by flow cytometry. No changes in CD34+ cell counts compared to comparison group were revealed in the group of individuals exposed in utero and postnatally; no age-related changes were registered as well. However, a significant decline in absolute HSC and progenitor cell counts with increased absorbed dose to red bone marrow was observed. In the group of individuals exposed only postnatally, there was a significant increase in peripheral blood CD34+ cell counts compared to comparison group (p = 0.004 for absolute cell count; p = 0.009 for relative cell count), dose-dependent increase in peripheral blood HSC and precursor cell counts (p = 0.02 for absolute cell count; p = 0.03 for relative cell count), along with age-related decline in these cells’ counts (р = 0.02 for absolute cell count; p = 0.04 for relative cell count).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гемопоэтические стволовые клетки</kwd><kwd>хроническое облучение</kwd><kwd>отдаленные эффекты</kwd><kwd>периферическая кровь</kwd><kwd>проточная цитометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hematopoietic stem cells</kwd><kwd>chronic exposure</kwd><kwd>late effects</kwd><kwd>peripheral blood</kwd><kwd>flow cytometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания «Состояние клеточного иммунитета человека в период реализации отдаленных эффектов хронического радиационного воздействия» (код 27.002.20.800).</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of the State assignment “Human Cell-Mediated Immunity During Realization of Chronic Radiation Exposure Late Effects” (code 27.002.20.800).</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">Аклеев А. 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