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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">cfpd</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень физиологии и патологии дыхания</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin Physiology and Pathology of Respiration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-5029</issn><publisher><publisher-name>Дальневосточный научный центр физиологии и патологии дыхания</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36604/1998-5029-2024-91-84-89</article-id><article-id custom-type="elpub" pub-id-type="custom">cfpd-1147</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>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Характеристика процессов перекисного окисления липидов и антиоксидантной защиты у рожениц при COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Characterization of lipid peroxidation processes and antioxidant defense in parturients with COVID-19</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>Ишутина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ishutina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталия Александровна Ишутина, д-р биол. наук, ведущий научный сотрудник лаборатории механизмов этиопатогенеза и восстановительных процессов дыхательной системы при неспецифических заболеваниях легких, </p><p>675000, г. Благовещенск, ул. Калинина, 22</p></bio><bio xml:lang="en"><p>Nataliа A. Ishutina, PhD, D.Sc. (Biol.), Leading Staff Scientist of Laboratory of Mechanisms of Etiopathogenesis and Recovery Processes of the Respiratory System at Non-Specific Lung Diseases,</p><p>22 Kalinina Str., Blagoveshchensk, 675000</p></bio><email xlink:type="simple">ishutina-na@mail.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>Андриевская</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Andrievskaya</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Анатольевна Андриевская, д-р биол. наук, профессор РАН, зав. лабораторией механизмов этиопатогенеза и восстановительных процессов дыхательной системы при неспецифических заболеваниях легких, </p><p>675000, г. Благовещенск, ул. Калинина, 22</p></bio><bio xml:lang="en"><p>Irina A. Andrievskaya, PhD, D.Sc. (Biol.), Professor RAS, Head of Laboratory of Mechanisms of Etiopathogenesis and Recovery Processes of the Respiratory System at Non-Specific Lung Diseases,</p><p>22 Kalinina Str., Blagoveshchensk, 675000</p></bio><email xlink:type="simple">irina-andrievskaja@rambler.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>Кривощекова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krivoschekova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Анатольевна Кривощекова, врач акушер-гинеколог, аспирант, </p><p>675000, г. Благовещенск, ул. Горького, 95 </p></bio><bio xml:lang="en"><p>Natalya A. Krivoschekova, PhD Student, MD, Obstetrician-gynecologist,</p><p>95 Gor'kogo Str., Blagoveshchensk, 675000</p></bio><email xlink:type="simple">ob-gim@bgkb.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Дальневосточный научный центр физиологии и патологии дыхания»</institution></aff><aff xml:lang="en"><institution>Far Eastern Scientific Center of Physiology and Pathology of Respiration</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение высшего образования «Амурская государственная медицинская академия» Министерства здравоохранения Российской Федерации</institution></aff><aff xml:lang="en"><institution>Amur State Medical Academy</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>23</day><month>03</month><year>2024</year></pub-date><volume>0</volume><issue>91</issue><fpage>84</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ишутина Н.А., Андриевская И.А., Кривощекова Н.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ишутина Н.А., Андриевская И.А., Кривощекова Н.А.</copyright-holder><copyright-holder xml:lang="en">Ishutina N.A., Andrievskaya I.A., Krivoschekova 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://cfpd.elpub.ru/jour/article/view/1147">https://cfpd.elpub.ru/jour/article/view/1147</self-uri><abstract><sec><title>Цель</title><p>Цель. Изучить функциональное состояние системы «перекисное окисление липидов – антиоксидантная защита» в периферической крови рожениц с COVID-19 легкой и тяжелой степени тяжести.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В данном исследовании по типу «случай-контроль» обследовано 95 рожениц с подтвержденным диагнозом COVID-19 в третьем триместре, которые были разделены на две группы в зависимости от тяжести течения заболевания. В группу 1а вошли роженицы с тяжелым течением COVID-19 (внебольничная пневмония, n=48), в группу 1б были включены пациентки с легким течением COVID-19 (ОРВИ, n=47). Контрольную группу составили 45 рожениц, не болевших COVID-19 ранее и на момент обследования. Возраст в группах исследования составил 23,9±0,50 и 24,4±0,60 года, соответственно. Материалом для исследования служила периферическая венозная кровь. Спектрофотометрическим методом были изучены концентрации первичных (диеновые конъюгаты – ДК), конечных (активные продукты тиобарбитуровой кислоты – ТБК-АП) продуктов липопероксидации. Методом иммуноферментного анализа исследовали содержание 8-изопростана, фосфолипазы А2 и общую антиоксидантную способность компонентов плазмы.</p></sec><sec><title>Результаты</title><p>Результаты. У рожениц с тяжелым течением COVID-19 в периферической крови определялось увеличение содержания фосфолипазы А2 в 2,1 раза (p ˂ 0,001), маркеров окислительного стресса: концентрации ДК в 1,94 раза (p ˂ 0,001), ТБК-АП в 2,2 раза (p ˂ 0,001), 8-изопростана более чем в 2 раза (p ˂ 0,001) при одновременном снижении общей антиоксидантной способности компонентов плазмы крови в 1,7 раза (p ˂ 0,001) по сравнению с аналогичными параметрами контрольной группы. В группе рожениц с легким течение COVID-19 изучаемые показатели изменялись менее значимо.</p></sec><sec><title>Заключение</title><p>Заключение. В результате исследования установлена патогенетическая роль SARS-CoV-2 в нарушении функциональной системы «перекисное окисление липидов – антиоксидантная защита» и развитии окислительного стресса у рожениц, перенесших в третьем триместре COVID-19. Выявлена зависимость концентрации маркеров окислительного стресса в периферической крови от тяжести течения COVID-19. Показано, что COVID-19 в третьем триместре беременности сопряжен с высоким содержанием фосфолипазы А2, дисбалансом прооксидантно-оксидантной системы, характеризующимся снижением общей антиоксидантной способности и увеличением продуктов окислительной модификации биомолекул, выражаемых ростом уровня ДК, ТБК-АП, 8-изопростана с развитием окислительного стресса, коррелирующего с тяжестью легочного повреждения.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. The aim of the study was to investigate the functional state of the «lipid peroxidation - antioxidant defense» system in the peripheral blood of parturients with mild and severe COVID-19.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. This casecontrol study examined 95 parturients with confirmed COVID-19 diagnosis in the third trimester, divided into two groups based on the severity of the disease. Group 1a included parturients with severe COVID-19 (community-acquired pneumonia, n=48), while group 1b consisted of patients with mild COVID-19 (acute respiratory viral infection, n=47). The control group was composed of 45 parturients without a prior or current diagnosis of COVID-19. The average age of women in the study groups was 23.9±0.50 years, and 24.4±0.60 years in the control group (p&gt;0.05). Peripheral venous blood served as the material for the study. Spectrophotometric methods were used to examine the concentrations of primary (diene conjugates - DC) and final (active thiobarbituric acid products - TBARS) products of lipoperoxidation. The content of 8-isoprostane, total antioxidant capacity of plasma components, and phospholipase A2 were investigated using enzymelinked immunosorbent assay (ELISA).</p></sec><sec><title>Results</title><p>Results. Study showed that parturients with severe COVID-19 had increased levels of phospholipase A2 by 2.1 times (p&lt;0.001), oxidative stress markers: diene conjugate concentrations by 1.94 times (p&gt;&lt;0.001), TBARS by 2.2 times (p&gt;&lt;0.001), and 8-isoprostane by more than 2 times (p&gt;&lt;0.001), along with a simultaneous decrease in the total antioxidant capacity of blood plasma components by 1.7 times (p&gt;&lt;0.001) compared to the control group. In the group of parturients with mild COVID-19, the studied indicators changed less significantly. Conclusion. The study established the pathogenetic role of SARS-CoV-2 in disrupting the functional system of «lipid peroxidation - antioxidant defense» and the development of oxidative stress in parturients who had COVID-19 in the third trimester. A dependency of oxidative stress marker concentrations in peripheral blood on the severity of COVID-19 was identified. It was shown that COVID-19 in the third trimester of pregnancy is associated with high levels of phospholipase A2, an imbalance in the prooxidant-antioxidant system, characterized by a reduction in the level of total antioxidant capacity and an increase in oxidative modification products of biomolecules, expressed by the growth of DC, TBARS, and 8-isoprostane levels, leading to oxidative stress correlated with the severity of lung damage. Key words: COVID-19, parturients, lipid peroxidation, antioxidant defense, oxidative stress&gt; ˂ 0.001), oxidative stress markers: diene conjugate concentrations by 1.94 times (p ˂ 0.001), TBARS by 2.2 times (p ˂ 0.001), and 8-isoprostane by more than 2 times (p ˂ 0.001), along with a simultaneous decrease in the total antioxidant capacity of blood plasma components by 1.7 times (p ˂ 0.001) compared to the control group. In the group of parturients with mild COVID-19, the studied indicators changed less significantly.</p></sec><sec><title>Conclusion</title><p>Conclusion. The study established the pathogenetic role of SARS-CoV-2 in disrupting the functional system of «lipid peroxidation - antioxidant defense» and the development of oxidative stress in parturients who had COVID-19 in the third trimester. A dependency of oxidative stress marker concentrations in peripheral blood on the severity of COVID-19 was identified. It was shown that COVID-19 in the third trimester of pregnancy is associated with high levels of phospholipase A2, an imbalance in the prooxidant-antioxidant system, characterized by a reduction in the level of total antioxidant capacity and an increase in oxidative modification products of biomolecules, expressed by the growth of DC, TBARS, and 8-isoprostane levels, leading to oxidative stress correlated with the severity of lung damage.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>роженицы</kwd><kwd>перекисное окисление липидов</kwd><kwd>антиоксидантная защита</kwd><kwd>окислительный стресс</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>parturients</kwd><kwd>lipid peroxidation</kwd><kwd>antioxidant defense</kwd><kwd>oxidative stress</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">Miripour Z.S., Sarrami-Forooshani R., Sanati H., Makarem J., Taheri M.S., Shojaeian F., Eskafi A.H., Abbasvandi F., Namdar N., Ghafari H., Aghaee P., Zandi A., Faramarzpour M., Hoseinyazdi M., Tayebi M., Abdolahad M. 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