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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">morpho</journal-id><journal-title-group><journal-title xml:lang="ru">Морфологические ведомости</journal-title><trans-title-group xml:lang="en"><trans-title>Morphological newsletter</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-3171</issn><issn pub-type="epub">2686-8741</issn><publisher><publisher-name>Private Medical University REAVIZ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/mv-mn.2022.30(4).747</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-747</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>МОРФОФУНКЦИОНАЛЬНОЕ СОСТОЯНИЕ СОСУДИСТОГО КОМПОНЕНТА ОРГАНОВ КРОВЕТВОРЕНИЯ В РАЗНЫЕ СРОКИ МОДЕЛИРУЕМОЙ ГИПОКСИИ В ЭКСПЕРИМЕНТЕ</article-title><trans-title-group xml:lang="en"><trans-title>THE MORPHOLOGICAL AND FUNCTIONAL STATE OF THE VASCULAR COMPONENT OF HEMATOPOIESIS ORGANS IN DIFFERENT TIMES OF SIMULATED HYPOXIA IN THE EXPERIMENT</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9840-2424</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Наумов</surname><given-names>Александр Валентинович</given-names></name><name name-style="western" xml:lang="en"><surname>Naumov</surname><given-names>Aleksandr V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры гистологии и эмбриологии</p></bio><bio xml:lang="en"><p>Assistant of the Department of Histology and Embryology</p></bio><email xlink:type="simple">naumov_histo@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/0000-0002-4968-4517</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитюк</surname><given-names>Дмитрий Борисович</given-names></name><name name-style="western" xml:lang="en"><surname>Nikityuk</surname><given-names>Dimitry B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик РАН, доктор медицинских наук, профессор, заведующий лабораторией спортивной антропологии и нутрициологии, директор</p></bio><bio xml:lang="en"><p>Academician of the Russian Academy of Sciences, Doctor of Medical Sciences, Professor, Head of the Laboratory of Sports Anthropology and Nutrition, Director</p></bio><email xlink:type="simple">dimitrynik@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овсянникова</surname><given-names>Ольга Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Ovsyannikova</surname><given-names>Olga A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент, заведующая кафедрой патологической физиологии</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Associate Professor, Head of the Department of Pathological Physiology</p></bio><email xlink:type="simple">ovolga.a@yandex.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/0000-0001-5843-4862</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шишкина</surname><given-names>Татьяна Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Shishkina</surname><given-names>Tatyana A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент кафедры гистологии и эмбриологии</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Associate Professor of the Department of Histology and Embryology</p></bio><email xlink:type="simple">suntata@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/0000-0002-1120-598X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Наумова</surname><given-names>Любовь Ивановна</given-names></name><name name-style="western" xml:lang="en"><surname>Naumova</surname><given-names>Lyubov I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, заведующая кафедрой гистологии и эмбриологии</p></bio><bio xml:lang="en"><p>Doctor of Medical Sciences, Professor, Head of the Department of Histology and Embryology</p></bio><email xlink:type="simple">naumova_histo@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Астраханский государственный медицинский университет, Астрахань</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Astrakhan State Medical University, Astrakhan</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр питания и биотехнологии, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center for Nutrition and Biotechnology, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>12</month><year>2022</year></pub-date><volume>30</volume><issue>4</issue><fpage>46</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Наумов А.В., Никитюк Д.Б., Овсянникова О.А., Шишкина Т.А., Наумова Л.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Наумов А.В., Никитюк Д.Б., Овсянникова О.А., Шишкина Т.А., Наумова Л.И.</copyright-holder><copyright-holder xml:lang="en">Naumov A.V., Nikityuk D.B., Ovsyannikova O.A., Shishkina T.A., Naumova L.I.</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.morpholetter.com/jour/article/view/747">https://www.morpholetter.com/jour/article/view/747</self-uri><abstract><p>В условиях гипоксии изменение морфофункционального состояния компонентов микроциркуляторного русла будет сопровождаться изменением адекватности и полноценности иммунного ответа и гемопоэза. Цель исследования - определение морфофункционального состояния сосудистого компонента красного костного мозга и селезенки в различные сроки моделируемой гипоксии и выявлении степени влияния на это состояние CD68-позитивных клеток. Хроническая гипоксия моделировалась на 246 белых беспородных крысах мужского пола с использованием специальных затравочных камер и природного газа Астраханского газового месторождения (Россия) в концентрации, не превышающей предельно допустимой. Эксперимент длился в течение 120 суток, ингаляция проводилась пять дней в неделю в течение четырех часов в день, выведение животных из эксперимента проводилось каждые 30 суток. Функциональную активность сосудистого компонента красного костного мозга определяли с помощью метода лазерной допплеровской флоуметрии. Иммуногистохимическим методом определяли степень экспрессии индуцибельной (iNOS) и эндотелиальной (eNOS) NO-синтаз и распределение CD68-позитивных клеток в структурах селезенки. Исследование показало, что по мере увеличения срока хронической моделируемой гипоксии происходит уменьшение показателя микроциркуляции, нарастание миогенного тонуса и показателя шунтирования, что, в совокупности, указывает на ухудшение перфузии органа и подтверждает формирование гипоксического состояния. Анализ функциональной активности, проведенный с помощью иммуногистохимического исследования экспрессии iNOS и eNOS в структурах селезенки, показал, что по мере увеличения срока эксперимента происходит снижение уровня эндотелиальной и нарастание уровня индуцибельной синтазы. Возможно, это связано с влиянием биологически активных веществ, выделяемых активированными при гипоксии макрофагами. Это подтверждается увеличением присутствия CD68-позитивных клеток в красной пульпе и по ходу соединительнотканных трабекул по мере увеличения экспериментального воздействия.</p></abstract><trans-abstract xml:lang="en"><p>Under conditions of hypoxia, a change in the morphological and functional state of the components of the microvasculature bed will be accompanied by a change in the adequacy and usefulness of the immune response and hematopoiesis. The purpose of the study was to determine the morphofunctional state of the vascular component of the red bone marrow and spleen at various times of simulated hypoxia and to identify the degree of influence of CD68-positive cells on this state. Chronic hypoxia was modeled on 246 outbred male rats using special chambers containing natural gas from the Astrakhan gas field (Russia) at a concentration not exceeding the maximum allowable. The experiment was continued for 120 days, inhalation was carried out five days a week for four hours a day, the removal of animals from the experiment was carried out every 30 days. The functional activity of the vascular component of the red bone marrow was determined using the method of laser Doppler flowmetry. The degree of expression of inducible (iNOS) and endothelial (eNOS) NO synthases and the distribution of CD68-positive cells in the spleen structures were determined by immunohistochemical method. The study showed that as the duration of chronic simulated hypoxia increases, there is a decrease in the microcirculation index, an increase in myogenic tone and shunting index, which, taken together, indicates a deterioration of organ perfusion and confirms the formation of a hypoxic state. An analysis of the functional activity, carried out using an immunohistochemical study of the expression of iNOS and eNOS in the structures of the spleen, showed that as the duration of the experiment increased, the level of endothelial synthase decreased and the level of inducible synthase increased. Perhaps this is due to the influence of biologically active substances secreted by macrophages activated during hypoxia. This is supported by an increase in the presence of CD68-positive cells in the red pulp and along the connective tissue trabeculae as the experimental exposure increases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>красный костный мозг</kwd><kwd>селезенка</kwd><kwd>гипоксия</kwd><kwd>микроокружение</kwd><kwd>кровеносные сосуды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>red bone marrow</kwd><kwd>spleen</kwd><kwd>hypoxia</kwd><kwd>microenvironment</kwd><kwd>blood vessels</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">Petrenko VM. Limfoidnye ili krovetvornye organy? Uspekhi sovremennogo estestvoznaniya. 2011;(1):142-143. In Russian</mixed-citation><mixed-citation xml:lang="en">Petrenko VM. Limfoidnye ili krovetvornye organy? Uspekhi sovremennogo estestvoznaniya. 2011;(1):142-143. 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