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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">kurskvest</journal-id><journal-title-group><journal-title xml:lang="ru">Человек и его здоровье</journal-title><trans-title-group xml:lang="en"><trans-title>Humans and their health</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-5746</issn><issn pub-type="epub">1998-5754</issn><publisher><publisher-name>Kursk State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21626/vestnik/2020-2/09</article-id><article-id custom-type="elpub" pub-id-type="custom">kurskvest-832</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>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICOBIOLOGICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Половые различия морфофункциональных изменений иммунной системы у крыс Вистар разных возрастных групп при экспериментальной эндотоксинемии</article-title><trans-title-group xml:lang="en"><trans-title>Sex differences in morphofunctional changes in the immune system in Wistar rats of different age groups with experimental endotoxinemia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6182-1799</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Косырева</surname><given-names>Анна Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Kosyreva</surname><given-names>Anna M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р биол. наук, руководитель научно-организационного отдела, НИИМЧ; доцент кафедры гистологии, эмбриологии и цитологии Медицинского института, РУДН</p></bio><bio xml:lang="en"><p>DBSc, Head of Scientific and Organizational Department, RIHM; Assistant Professor of Histology, Embryology and Cytology Department of Medical Institute, RUDN University</p></bio><email xlink:type="simple">kosyreva.a@list.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/0000-0001-8581-107X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарова</surname><given-names>Ольга Васильевна</given-names></name><name name-style="western" xml:lang="en"><surname>Makarova</surname><given-names>Olga V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, профессор, зав. лабораторией иммуноморфологии воспаления</p></bio><bio xml:lang="en"><p>DM, Professor, Head of Immunomorphology of Inflammation Laboratory</p></bio><email xlink:type="simple">makarov.olga2013@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт морфологии человека; Российский университет дружбы народов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Human Morphology; Peoples' Friendship University of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт морфологии человека</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Human Morphology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>06</month><year>2020</year></pub-date><volume>0</volume><issue>2</issue><fpage>65</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Косырева А.М., Макарова О.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Косырева А.М., Макарова О.В.</copyright-holder><copyright-holder xml:lang="en">Kosyreva A.M., Makarova O.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.kursk-vestnik.ru/jour/article/view/832">https://www.kursk-vestnik.ru/jour/article/view/832</self-uri><abstract><p>Цель работы - выявить половые различия морфофункциональных изменений лимфоидных органов - тимуса и селезенки, продукции цитокинов и субпопуляционного состава лимфоцитов периферической крови у крыс Вистар трех возрастных групп при эндотоксинемии.</p><sec><title>Материалы и методы</title><p>Материалы и методы. В работе использовались самцы и самки крыс Вистар трех возрастных групп: новорожденные, препубертатные и половозрелые. Через сутки после введения 15 мг/кг липополисахарида (ЛПС) E. coli O26:B6 оценивали объемную долю функциональных зон тимуса и селезенки, число AnnexinV+ апоптотически гибнущих клеток в тимусе, относительное и абсолютное количество субпопуляций лимфоцитов в периферической крови (CD3+CD4+, CD3+CD8a+, CD4+CD25+Foxp3+, CD3-CD45R+) и уровень ex vivo продукции цитокинов (ИЛ-2, ИЛ-4, ФНО-α и ИФН-γ).</p></sec><sec><title>Результаты</title><p>Результаты. Половые различия реакции иммунной системы при введении ЛПС в разных возрастных периодах выражены по-разному: в период новорожденности у самок наблюдается иммуносупрессия (снижение ex vivo продукции ИЛ-2, ФНО-α и ИФН-γ), а у самцов - активация провоспалительных реакций (повышение ex vivo продукции ИЛ-2 и ФНО-α). В препубертатном возрасте ЛПС-индуцированные иммунологические нарушения более выражены по сравнению с другими возрастными периодами, а половые различия - минимальны и касаются только различий количества Т-регуляторных и В-лимфоцитов. В половозрелом периоде иммуносупрессия, индуцированная введением ЛПС, наиболее выражена у самцов - у них наблюдается снижение продукции всех исследуемых цитокинов и уменьшение числа цитотоксических, регуляторных Т-лимфоцитов и В-клеток.</p></sec><sec><title>Заключение</title><p>Заключение. Таким образом, в каждом из изученных возрастных периодов - новорожденности, препубертатном и половозрелом периодах - половые различия реакций иммунной системы выражены в разной мере, и, по-видимому, они определяются содержанием половых стероидных гормонов, концентрация которых изменяется с возрастом.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. The aim was revealing gender differences in morphological and functional changes of lymphoid organs (thymus and spleen), changes of cytokine production and subpopulation composition of peripheral blood lymphocytes in Wistar rats of three age groups with endotoxemia.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We used male and female Wistar rats of three age groups: newborns, prepubertal and sexually mature adult rats. A day after the injection of 15 mg/kg of O26:B6 E. coli lipopolysaccharide (LPS), the volume fraction of the functional zones of the thymus and spleen, the number of AnnexinV + apoptotically dying cells in the thymus, the relative and absolute number of lymphocyte subpopulations (CD3+CD4+, CD3+CD8a+, CD4+CD25+Foxp3+, CD3-CD45R+) in peripheral blood and ex vivo production of IL-2, IL-4, IFN-γ and TNF-α were estimated.</p></sec><sec><title>Results</title><p>Results. Sex differences in the response of the immune system after the LPS injection in different age periods are expressed differently: in the neonatal period, there is immunosuppression in females (decrease in the ex vivo production of IL-2, TNF-α and IFN-γ), and there is activation of pro-inflammatory reactions in males (increase in ex vivo production of IL-2 and TNF-α). As compared with other age periods at prepubertal age, LPS-induced immunological disorders are more pronounced, and gender differences are minimal and related only to the number of T-regulatory and B-lymphocytes. In the adults, the LPS-induced immunosuppression is most pronounced in males - they have a decrease in the production of all the cytokines studied and a decrease in the number of cytotoxic and regulatory T-lymphocytes and B-cells.</p></sec><sec><title>Conclusion</title><p>Conclusion. Thus, in each of the studied age periods - newborn, prepubertal and adult, the sexual differences in the immune system reactions are expressed differently and, apparently, these differences are determined by the content of sex steroid hormones, the concentration of which varies with age.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>возрастные различия</kwd><kwd>половые различия</kwd><kwd>тимус</kwd><kwd>селезенка</kwd><kwd>ЛПС</kwd><kwd>цитокины</kwd><kwd>Т- и В-лимфоциты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>age and sex differences</kwd><kwd>thymus</kwd><kwd>spleen</kwd><kwd>LPS</kwd><kwd>cytokines</kwd><kwd>T- and B-lymphocytes</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБНУ «НИИ морфологии человека» АААА-А19-119021490067-4</funding-statement><funding-statement xml:lang="en">The study was performed as a part of a state assignment for Research Institute of Human Morphology (AAAA-A19-119021490067-4).</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">Kosyreva A.M., Makarova O.V., Mikhailova L.P., Kakturskiy L.V. 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Crit Care. 2014;18(2):204 DOI: 10.1186/cc13733</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
