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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">medjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-426X</issn><publisher><publisher-name>Белорусский государственный медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51922/1818-426X.2025.4.34</article-id><article-id custom-type="elpub" pub-id-type="custom">medjournal-364</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 НАУЧНЫЕ ПУБЛИКАЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL SCIENTIFIC PUBLICATIONS</subject></subj-group></article-categories><title-group><article-title>Определение уровня циркулирующих иммунных комплексов у пациентов со стабильной стенокардией напряжения в зависимости от функционального класса</article-title><trans-title-group xml:lang="en"><trans-title>DETERMINATION OF THE LEVEL OF CIRCULATING IMMUNE COMPLEXES IN PATIENTS WITH STABLE ANGINA DEPENDING ON THE FUNCTIONAL CLASS</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>Антонович</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Antonovich</surname><given-names>M. N.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саттаров</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sattarov</surname><given-names>R. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антонович</surname><given-names>Л. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Antonovich</surname><given-names>L. L.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вашкевич</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vashkevich</surname><given-names>T. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абражевич</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Abrazhevich</surname><given-names>E. K.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Верховская</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Verchovskaya</surname><given-names>N. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>УО «Белорусский государственный медицинский университет»</institution></aff><aff xml:lang="en"><institution>Educational Institution “Belarusian State Medical University”</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>УЗ «6-я городская клиническая больница»</institution></aff><aff xml:lang="en"><institution>Healthcare Institution “6th City Clinical Hospital”</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>12</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>34</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Антонович М.Н., Саттаров Р.М., Антонович Л.Л., Вашкевич Т.А., Абражевич Е.К., Верховская Н.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Антонович М.Н., Саттаров Р.М., Антонович Л.Л., Вашкевич Т.А., Абражевич Е.К., Верховская Н.А.</copyright-holder><copyright-holder xml:lang="en">Antonovich M.N., Sattarov R.M., Antonovich L.L., Vashkevich T.A., Abrazhevich E.K., Verchovskaya 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://medjournal.ejournal.by/jour/article/view/364">https://medjournal.ejournal.by/jour/article/view/364</self-uri><abstract><p>Атеросклероз коронарных артерий является одной из причин развития ишемической болезни сердца (ИБС) и ее хронической формы – стабильной стенокардии напряжения. Атеросклероз можно рассматривать, как хронический иммуновоспалительный процесс, в котором антигенные стимулы исходят от перекисно модифицированных липопротеинов. Литературные данные указывают на продукцию циркулирующих иммунных комплексов (ЦИК), содержащих в качестве антигена липопротеины, у пациентов со стабильной стенокардией напряжения.Цель исследования – определить содержание ЦИК у пациентов со стабильной стенокардией напряжения с функциональными классами (ФК) I, II, III, IV.Материал и методы. Исследование проводилось в условиях кардиологического отделения №1 УЗ «6-я клиническая больница г. Минска». В исследование включен 141 пациент со стабильной стенокардией напряжения с функциональными классами (ФК) I, II, III, IV, которые составили 4 основные группы исследования (А, Б, В, Г). Контрольную группу составили 30 практически здоровых лиц сопоставимого возраста. Определение ЦИК производили методом иммуноферментного анализа в венозной крови пациентов. Статистическая обработка данных выполнялась с помощью программы Statistica 10.0. При р &lt; 0,05 различия считали статистически значимыми.Результаты и их обсуждение. У пациентов со стенокардией напряжения ФК I уровень ЦИК составил 243,0 ± 31,4 усл. ед. По мере увеличения ФК стабильной стенокардии напряжения увеличивался и уровень ЦИК, который у пациентов с ФК IV составил 404,0 ± 52,4 усл. ед.Заключение. С увеличением степени тяжести стабильной стенокардии напряжения статистически значимо увеличивается содержание ЦИК, что свидетельствуют о развитии иммунопатологического процесса по мере прогрессирования недостаточности коронарного кровообращения.</p></abstract><trans-abstract xml:lang="en"><p>Coronary artery atherosclerosis is one of the causes of coronary heart disease (CHD) and its chronic form – stable angina. Atherosclerosis can be considered as a chronic immune-inflammatory process in which antigenic stimuli originate from peroxide-modified lipoproteins. Literature data indicate the production of circulating immune complexes (CIC) containing lipoproteins as an antigen in patients with stable angina.The aim of the study was to determine the content of CIC in patients with stable angina with functional classes (FC) I, II, III, IV.Material and methods. The study was conducted in the Cardiology Department № 1 of the 6th Clinical Hospital of Minsk. The study included 141 patients with stable angina with functional classes (FC) I, II, III, IV, which made up 4 main study groups (A, B, C, D). The control group consisted of 30 practically healthy individuals of comparable age. The CIC was determined by the enzyme immunoassay method in the venous blood of patients. Statistical data processing was performed using the Statistica 10.0 program. At p &lt; 0.05, the differences were considered statistically significant.Results and discussion. In patients with angina pectoris FC I, the CIC level was 243.0 ± 31.4 conventional units. As the FC of stable angina pectoris increased, the CIC level also increased, which in patients with FC IV was 404.0 ± 52.4 conventional units.Conclusion. With an increase in the severity of stable angina pectoris, the content of CIC statistically significantly increases, which indicates the development of an immunopathological process as coronary circulatory failure progresses.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стабильная стенокардия напряжения</kwd><kwd>циркулирующие иммунные комплексы</kwd><kwd>атеросклероз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stable angina pectoris</kwd><kwd>circulating immune complexes</kwd><kwd>atherosclerosis</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">Orekhov, A. N. Mechanisms of atherogenesis and development of antiatherosclerotic therapy / A. N. 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