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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2021-20-3-77-83</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-977</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 СТАТЬИ (ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (EXPERIMENTAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Пол-зависимое изменение реактивности изолированных  легочных артерий гонадоэктомированных крыс  при действии прерывистой гипоксии разной степени тяжести</article-title><trans-title-group xml:lang="en"><trans-title>Sex-dependent change in the reactivity of isolated pulmonary  arteries of gonadectomized rats under the intermittent hypoxia  of different degree</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>Панькова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панькова Надежда Владимировна – канд. биол. наук, научный сотрудник</p><p>123007, Россия, Москва, Хорошевское шоссе, д. 76 А</p></bio><bio xml:lang="en"><p>Pankova Nadezhda V. – PHD, researcher</p><p>76A, Khoroschevskoye schosse, Moscow, Russia, 123007</p></bio><email xlink:type="simple">nadezhda.pankova.nnov@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>Артемьева</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Artemieva</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артемьева Марина Михайловна – канд. биол. наук, научный сотрудник, кафедра физиологии человека и животных</p><p>119991, Россия, Москва, Ленинские горы, д. 1</p></bio><bio xml:lang="en"><p>Artemieva Marina M. – PHD, researcher</p><p>1, Leninskie Gory, Moscow, Russia, 119991</p></bio><email xlink:type="simple">marinka.artemieva@gmail.com</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>Медведева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedeva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Медведева Наталия Александровна – д-р биол. наук, профессор, ведущий научный сотрудник, кафедра физиологии человека и животных</p><p>119991, Россия, Москва, Ленинские горы, д. 1</p></bio><bio xml:lang="en"><p>Medvedev Natalia A. – PHD, professor, leading researcher</p><p>1, Leninskie Gory, Moscow, Russia, 119991</p></bio><email xlink:type="simple">namedved@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки «Государственный научный центр Российской Федерации "Институт медико-биологический проблем" Российский академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biomedical Problems, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М. В. Ломоносова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M. V. Lomonosov Moscow 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>27</day><month>09</month><year>2021</year></pub-date><volume>20</volume><issue>3</issue><fpage>77</fpage><lpage>83</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Панькова Н.В., Артемьева М.М., Медведева Н.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Панькова Н.В., Артемьева М.М., Медведева Н.А.</copyright-holder><copyright-holder xml:lang="en">Pankova N.V., Artemieva M.M., Medvedeva N.A.</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.microcirc.ru/jour/article/view/977">https://www.microcirc.ru/jour/article/view/977</self-uri><abstract><p>Введение. Сужение легочных сосудов является одним из факторов патогенеза гипоксической формы легочной гипертонии (ГЛГ). Степень развития заболевания зависит от степени гипоксического воздействия и пола. Цель – изучение влияния степени гипоксии и пола животного на реакции изолированных легочных артерий на вазоактивные факторы. Материалы и методы. Эксперименты проводили на гонадоэктомированных самцах (СЦ) и самках (СК) крыс стока Wistar. В эксперимент вступало по 4 группы животных. Одна группа СЦ и СК содержалась в условиях вивария (21 %О2 ). Для моделирования ГЛГ остальных крыс в течение по 10 ч в сутки подвергали действию гипобарической гипоксии (ХПГГ) при содержании кислорода во вдыхаемом воздухе 13 % (пД. О2 103,7 мм рт. ст.), или 10 % (пД. О2 78,2 мм рт. ст.), или 8 % (пД. О2 63,5 мм рт. ст.) в сравнении с его содержанием при 21 % (пД О2 159 мм рт. ст). Затем выделяли легочный сосуд 3-го порядка, который перфузировали с постоянным расходом сосудосуживающими и сосудорасширяющими агентами. О реакции судили по изменению перфузионного давления. Результаты. Изучение реакций изолированных сосудов показало, что у СК с ГЛГ 10 % О2 суживающая реакция на серотонин была больше, чем у СЦ. У нормотензивных СЦ расширительный ответ на эндотелий-независимый расширительный фактор нитропруссид натрия (НП) была меньше, чем у СК. Воздействие гипоксии у СЦ приводило к увеличению реактивности к НП. Заключение. Увеличенная реактивность легочных сосудов СК к серотонину может быть фактором патогенеза ГЛГ, в отличие от СЦ. Увеличение реакции к NO-донору у СЦ при действии гипоксии может быть использовано для фармакологической коррекции ГЛГ.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Pulmonary vasoconstriction is one of factors of hypoxic pulmonary hypertension (HPH). The progression of this disease depends on the degree of hypoxiа and seх. The aim of this study was to investigate the reactivity of isolated pulmonary vessels of male and female rats with HPH to vasoactive factors. Materials and methods. The experiments were on male and female of Wistar rats 190–200 g, which were gonadectomized. All animals were divided into 4 groups. One group of males and female rats was kept in a vivarium (21 % О2 ). To simulate HPH, other rats were exposed to hypobaric hypoxia for 10 hours a day at an oxygen content in the inhaled air equal to 13 % (pP O2 103.7 mmHg) or 10 % (pP O2 78,2 mmHg), or 8 % (pP O2 63,5 mmHg) as compared to its content at 21 % (pP О2 159 mmHg). After that, a third-order pulmonary vessel was perfused at a constant flow rate with vasoconstrictors and vasodilators. The reaction was recorded by the change in perfusion pressure. Results. In females with HРН 10 %O2 , constricting response to serotonin were greater than in males. In normotensive males, the dilatory response to sodium nitroprusside (NP) was less than in female. Exposure to hypoxia induced an increase in NP responses. Conclusion. Increased reactivity of pulmonary vessels to serotonin is a factor of pathogenesis of HPH in females, in contrast to males. Increased reactivity to NO donor in males exposed to hypoxia сan be used for a pharmacological target for HPH.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая прерывистая гипоксия</kwd><kwd>легочная гипертония</kwd><kwd>легочные сосуды</kwd><kwd>серотонин</kwd><kwd>NO-донор</kwd><kwd>самки</kwd><kwd>самцы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic intermittent hypoxia</kwd><kwd>pulmonary hypertension</kwd><kwd>pulmonary vessels</kwd><kwd>serotonin</kwd><kwd>NO donor</kwd><kwd>females</kwd><kwd>males</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">Weitzenblum E, Chaouat A, Canuet M, Kessler R. Pulmonary hypertension in chronic obstructive pulmonary disease and interstitial lung diseases // Semin Respir Crit Care Med. 2009;30(4):458–470. 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