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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">pmj</journal-id><journal-title-group><journal-title xml:lang="ru">Тихоокеанский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Pacific Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-1175</issn><publisher><publisher-name>TGMU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.34215/1609-1175-2024-3-20-23</article-id><article-id custom-type="elpub" pub-id-type="custom">pmj-2769</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 RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Диагностическая ценность определения антител методом иммуноблоттинга у пациентов с ревматоидным артритом</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostic value of antibody immunoblotting detection in rheumatoid arthritis patients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8010-6777</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахвердян</surname><given-names>Ю. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhverdyan</surname><given-names>Y. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ахвердян Юрий Рубенович – канд. мед. наук, старший научный сотрудник лаборатории методов лечения и профилактики заболеваний суставов; доцент кафедры клинической лабораторной диагностики </p><p>400138, Волгоград, ул. Землячки, 76</p></bio><bio xml:lang="en"><p>Yury R. Akhverdyan, Cand. Sci. (Med.), Associate Professor of the Department of Clinical Laboratory Diagnostics; Senior Researcher at the Laboratory of Methods for the Treatment and Prevention of Joint Diseases </p><p>76 Zemlyachki St., Volgograd, 400138, Russia </p></bio><email xlink:type="simple">doctor_2001@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>Заводовский</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavodovsky</surname><given-names>B. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p> Volgograd </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Папичев</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Papichev</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p> Volgograd </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полякова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyakova</surname><given-names>J. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p> Volgograd </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>Сивордова</surname><given-names>Л. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Sivordova</surname><given-names>L. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p>Volgograd</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>Бедина</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bedina</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p> Volgograd </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краюшкина</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Krayushkina</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Волгоград </p></bio><bio xml:lang="en"><p> Volgograd </p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт клинической и экспериментальной ревматологии имени А.Б. Зборовского;&#13;
Волгоградский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Clinical and Experimental Rheumatology named after A.B. Zborovsky;&#13;
Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт клинической и экспериментальной ревматологии имени А.Б. Зборовского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Clinical and Experimental Rheumatology named after A.B. Zborovsky</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Волгоградский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>01</day><month>11</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>20</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ахвердян Ю.Р., Заводовский Б.В., Папичев Е.В., Полякова Ю.В., Сивордова Л.Е., Бедина С.А., Краюшкина Н.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ахвердян Ю.Р., Заводовский Б.В., Папичев Е.В., Полякова Ю.В., Сивордова Л.Е., Бедина С.А., Краюшкина Н.Г.</copyright-holder><copyright-holder xml:lang="en">Akhverdyan Y.R., Zavodovsky B.V., Papichev E.V., Polyakova J.V., Sivordova L.E., Bedina S.A., Krayushkina N.G.</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.tmj-vgmu.ru/jour/article/view/2769">https://www.tmj-vgmu.ru/jour/article/view/2769</self-uri><abstract><p>Цель: изучение диагностической ценности профиля антинуклеарных антител при ревматоидном артрите (РА) методом иммуноблоттинга. Материалы и методы. Наблюдали 46 пациентов с РА, средний возраст которых составил 34,6 года [21,3– 63,2], длительность заболевания – 11,2 года [3,7–19,8], активность по DAS-28 – 3,15 ± 1,36 (3,05–3,61) балла. Диагноз РА устанавливался на основании общепринятых клинических рекомендаций. В контрольную группу вошли 28 пациентов с остеоартрозом. При выполнении работы использован набор реагентов для определения антител IgG к ядерным антигенам методом иммуноблоттинга. Результаты. У пациентов с РА повышенный уровень антител к RNP/Sm антигену выявляется достоверно чаще в сравнении с группой контроля (p = 0,007). Наиболее специфичными тестами для диагностики РА оказались антитела к рибонуклеопротеинам (анти-RNP/Sm) (специфичность 96%, чувствительность 25%) и антитела к рекомбинантному антигену (чувствительность 25%, специфичность 88,1%). Методом ROC-анализа установлено, что точкой, соответствующей оптимальному соотношению чувствительность/специфичность, является значение анти-RNP/Sm = 0. Данному значению соответствует чувствительность 50% и специфичность 73,8%.Заключение. Изученные лабораторные тесты, как правило, обладали высокой специфичностью, но достаточно малой чувствительностью. Наиболее специфичными тестом для РА является анти-RNP/Sm. Проведение ROC-анализа позволило выявить, что для диагностики РА тест анти-RNP/Sm имеет средний показатель качества.</p></abstract><trans-abstract xml:lang="en"><p>Objective. To assess the diagnostic value of antinuclear antibody (ANA) profiling in rheumatoid arthritis by immunoblotting.Materials and methods. In total, 46 patients with rheumatoid arthritis (RA) with a mean age of 34.6 years (21.3–63.2) were observed. The disease duration was 11.2 years (3.7–19.8); the activity according to DAS 28 was 3.15 ± 1.36 (3.05–3.61) points. The RA diagnosis was based on generally accepted clinical guidelines. The control group included 28 patients with osteoarthritis. Laboratory examinations were conducted using a set of reagents to determine IgG antibodies to nuclear antigens by immunoblotting. Results. The RA patients showed an increased level of antibodies to the RNP/Sm antigen, with its frequency being significantly higher than in the control group (p = 0.007). The most specific testomes for diagnosing RA were anti-RNP/Sm (specificity 96%, sensitivity 25%) and antibodies to the recombinant antigen (sensitivity 25%, specificity 88.1%). The method of ROC analysis found that the value of anti-RNP/Sm = 0 is the point corresponding to the optimal ratio of sensitivity/specificity. This value corresponds to a sensitivity of 50% and a specificity of 73.8%.Conclusion. The studied laboratory tests, as a rule, showed high specificity, but rather low sensitivity. The most specific test for RA is anti-RNP/Sm. The conducted ROC analysis showed that the anti-RNP/Sm test has an average quality index for diagnosing RA.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ревматоидный артрит</kwd><kwd>диагностика ревматоидного артрита</kwd><kwd>лабораторные маркеры ревматоидного артрита</kwd><kwd>иммуноблоттинг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rheumatoid arthritis</kwd><kwd>rheumatoid arthritis diagnosis</kwd><kwd>laboratory markers of rheumatoid arthritis</kwd><kwd>immunoblotting</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">Александрова Е.Н., Новиков А.А., Насонов Е.Л. Федеральные клинические рекомендации. Лабораторная диагностика ревматических заболеваний 2015 – М.: ГЭОТАР-Медиа, 34 c.</mixed-citation><mixed-citation xml:lang="en">Alexandrova EN, Novikov AA, Nasonov EL. Federal clinical guidelines. 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