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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">zdor</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы здоровья и экологии</journal-title><trans-title-group xml:lang="en"><trans-title>Health and Ecology Issues</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-0967</issn><issn pub-type="epub">2708-6011</issn><publisher><publisher-name>Gomel State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51523/2708-6011.2023-20-2-10</article-id><article-id custom-type="elpub" pub-id-type="custom">zdor-2552</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>ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА И БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL MEDICINE AND BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Изменение уровня эндогенного дыхания слизистой тонкого кишечника в различные сроки после облучения</article-title><trans-title-group xml:lang="en"><trans-title>Changes in the level of endogenous respiration of the small intestine mucosa at various times after irradiation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2713-9438</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мышковец</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Myshkavets</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мышковец Надежда Сергеевна, преподаватель кафедры биологической химии</p><p>Гомель</p></bio><bio xml:lang="en"><p>Nadeja S. Myshkavets, Lecturer at the Department of  Biological Chemistry</p><p>Gomel</p></bio><email xlink:type="simple">jasjan@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гомельский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Gomel State Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>10</day><month>07</month><year>2023</year></pub-date><volume>20</volume><issue>2</issue><fpage>72</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мышковец Н.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Мышковец Н.С.</copyright-holder><copyright-holder xml:lang="en">Myshkavets N.S.</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://journal.gsmu.by/jour/article/view/2552">https://journal.gsmu.by/jour/article/view/2552</self-uri><abstract><p>Цель исследования. Изучить уровень эндогенного дыхания слизистой тонкого кишечника экспериментальных животных после воздействия внешнего облучения в дозе 0,5 и 1,0 Гр.Материалы и методы. Исследование было проведено на белых беспородных крысах-самцах массой 180–200 г. Животных однократно облучали на установке «ИГУР-1», источник 137Сs, мощность дозы 0,92 Гр/мин. Изучение параметров тканевого дыхания проводили полярографическим методом на устройстве «Record-4» (РФ) в ячейке объемом 2 мл закрытым платиновым электродом Кларка при 25 ºС.Результаты. Показано, что изменения дыхательной активности с течением времени носят немонотонный характер. Это подтверждает высокую чувствительность тонкого кишечника к радиационному воздействию.Заключение. Уровень эндогенного дыхания слизистой тонкого кишечника может являться одним из критериев оценки энергетического статуса ткани после облучения.</p></abstract><trans-abstract xml:lang="en"><p>Objective. To study the level of endogenous respiration of the small intestine mucosa of experimental animals after exposure to external irradiation at a dose of 0.5 and 1.0 Gy.Materials and methods. The study was conducted on white male outbred rats weighing 180-200 g. The animals were irradiated once in the “IGUR-1” unit, 137Cs source, dose rate 0.92 Gy/min. The parameters of tissue respiration were studied by polarographic method using Record-4 device (RF) in a 2 ml cell with a closed platinum Clark electrode at 25°C.Results. It was shown that changes in respiratory activity over time are non-monotonous. This confirms the high sensitivity of the small intestine to radiation exposure.Conclusion. The level of endogenous respiration of the small intestine mucosa can be one of the criteria for assessing the energy status of the tissue after irradiation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тонкий кишечник</kwd><kwd>митохондриальное окисление</kwd><kwd>внешнее облучение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>small intestine</kwd><kwd>mitochondrial oxidation</kwd><kwd>external irradiation</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">Хижняк С.В., Степанова Л.И., Грубская Л.В., Войцицкий В.М. Функциональное состояние цепи переноса электронов митохондрий энтероцитов тонкого кишечника крыс после общего внешнего воздействия ионизирующей радиации низкой мощности дозы. Радиационная биология. Радиоэкология. 2013;53(6):592-597.</mixed-citation><mixed-citation xml:lang="en">Khizhnyak SV, Stepanova LI, Grubskaya LV, Wojcicki VM. 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