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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2021-1-45-49</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-4275</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Влияние физической нагрузки на концентрацию эндотелиальной NO-синтазы и фактора активации тромбоцитов в плазме у спортсменов</article-title><trans-title-group xml:lang="en"><trans-title>Effect of physical load on the concentration of endothelial NO-synthase and platelet-activation factor in plasma of athletes</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>Капилевич</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapilevich</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р мед. наук, профессор, зав. кафедрой спортивно-оздоровительного туризма, спортивной физиологии и медицины; ст. науч. сотрудник</p><p> Россия, 634050, г. Томск, пр. Ленина, 36 </p><p> Россия, 634050, г. Томск, Московский тракт, 2 </p></bio><bio xml:lang="en"><p> 36, Lenin Ave., Tomsk, 634050, Russian Federation </p><p> 2, Moscow Tract, Tomsk, 634050, Russian Federation </p></bio><email xlink:type="simple">kapil@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>Кологривова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kologrivova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> аспирант, кафедра спортивно-оздоровительного туризма, спортивной физиологии и медицины </p><p> Россия, 634050, г. Томск, пр. Ленина, 36 </p></bio><bio xml:lang="en"><p> 36, Lenin Ave., Tomsk, 634050, Russian Federation </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Милованова</surname><given-names>К. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Milovanova</surname><given-names>K. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p> аспирант, кафедра спортивно-оздоровительного туризма, спортивной физиологии и медицины </p><p> Россия, 634050, г. Томск, пр. Ленина, 36 </p></bio><bio xml:lang="en"><p> 36, Lenin Ave., Tomsk, 634050, Russian Federation </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захарова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. биол. наук, доцент, кафедра спортивно-оздоровительного туризма, спортивной физиологии и медицины </p><p> Россия, 634050, г. Томск, пр. Ленина, 36 </p></bio><bio xml:lang="en"><p> 36, Lenin Ave., Tomsk, 634050, Russian Federation </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Томский государственный университет (НИ ТГУ);&#13;
Сибирский государственный медицинский университет (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk State University (NR TSU);&#13;
Siberian State Medical University (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Томский государственный университет (НИ ТГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk State University (NR TSU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>08</day><month>04</month><year>2021</year></pub-date><volume>20</volume><issue>1</issue><fpage>45</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Капилевич Л.В., Кологривова В.В., Милованова К.Г., Захарова А.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Капилевич Л.В., Кологривова В.В., Милованова К.Г., Захарова А.Н.</copyright-holder><copyright-holder xml:lang="en">Kapilevich L.V., Kologrivova V.V., Milovanova K.G., Zakharova A.N.</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://bulletin.ssmu.ru/jour/article/view/4275">https://bulletin.ssmu.ru/jour/article/view/4275</self-uri><abstract><sec><title> Цель</title><p> Цель. Оценить влияние однократной физической нагрузки на концентрацию эндотелиальной NO-синтазы и фактора активации тромбоцитов в плазме крови у спортсменов, тренирующихся в циклических и силовых видах спорта, а также у нетренированных волонтеров.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследовании участвовали 28 мужчин в возрасте 18–25 лет, условно здоровые, без нарушений со стороны сердечно-сосудистой системы. В соответствии со спортивной классификацией было сформировано три группы. Группа 1 (ЛА):  высококвалифицированные спортсмены (кандидаты в мастера спорта (КМС), мастера спорта (МС)) циклических  видов спорта – легкая атлетика (бег на средние дистанции 800–1 500 м), n = 10. Группа 2 (ТА):  высококвалифицированные спортсмены (КМС, МС) силовых видов спорта – тяжелая атлетика, n = 8. Группа 3 (КГ):  контрольная группа – нетренированные мужчины, не имеющие спортивного разряд, n = 10. Все волонтеры  проходили обследование утром натощак. За 1 сут до исследования спортсменам было рекомендовано  прекратить тренировочный процесс. У всех испытуемых  трижды бралась кровь из локтевой вены: до нагрузки  (проба А), сразу после выполнения стандартной пробы PWC170 на велоэргометре (проба В) и через 60 мин после выполнения нагрузочной пробы (проба С). Определение концентрации eNOS и PAF в плазме производилось методом иммуноферментного анализа.</p></sec><sec><title>Результаты</title><p>Результаты. Показано, что особенности эндотелиальной реактивности у спортсменов различных специализаций в сравнении с нетренированными волонтерами в  значительной степени связаны с уровнем продукции eNOS как в покое, так и в ответ на кратковременные физические  нагрузки. Фактор активации тромбоцитов также может оказывать влияние на эндотелиальную реактивность, но в  меньшей степени, и вовлекается только в механизмы адаптации к регулярным нагрузкам высокой интенсивности. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title> Aim</title><p> Aim. To assess the effect of a single physical activity on the concentration of endothelial NO-synthase and plateletactivating factor in blood plasma of athletes training in cyclic and strength sports, as well as in untrained volunteers.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study involved 28 men aged 18–25 years, who were relatively healthy and had no disorders of the cardiovascular system. Three groups were formed according to the sports classification. Group 1 (TFG): highly qualified athletes (Candidates for Master of Sports (CMS),  Master of Sports (MS)) of cyclic sports – track and field athletics (middle-distance running, 800–1500 m), n = 10. Group 2 (WG): highly qualified athletes (CMS, MS) of strength sports – weightlifting, n = 8. Group 3 (CG): control group – untrained men with no sports category, n = 10. All volunteers were examined in the morning on an empty stomach. One day before the study, the athletes were advised to stop the training process. The blood from cubital vein was taken from all the subjects three times: before exercise (test A), immediately after performing the standard PWC170 test on a bicycle ergometer (test B), and 60 minutes after performing the stress test (test C). Determination of the concentration of endothelial NO-synthase (eNOS) and platelet-activating factor (PAF) in plasma was performed by enzyme immunoassay.</p></sec><sec><title>Results</title><p>Results. It has been shown that the features of endothelial reactivity in athletes of various specializations in comparison with untrained volunteers are significantly associated with the level of eNOS production both at rest and in response to short-term physical exertion. Platelet-activating factor  can also affect endothelial reactivity, but to a lesser extent, and is involved only in the mechanisms of adaptation to repetitive high-intensity physical  loads. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>эндотелий</kwd><kwd>легкая атлетика</kwd><kwd>тяжелая атлетика</kwd><kwd>тренировки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>endothelium</kwd><kwd>athletics</kwd><kwd>weightlifting</kwd><kwd>training</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет средств Российского научного фонда, проект № 16-15-10026-П.</funding-statement><funding-statement xml:lang="en">The study was carried out at the expense of the Russian Science Foundation, project No. 16- 15-10026-P.</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">Green D.J., Spence A., Rowley N. et al. 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