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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-POI-2702</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2702</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Особенности иммунологических проявлений у пациентов с ревматоидным артритом при наличии хронического инфицирования штаммом Helicobacter pylori, кодирующим ассоциированный с цитотоксином ген A</article-title><trans-title-group xml:lang="en"><trans-title>Peculiarities of immunological manifestations in patients with rheumatoid arthritis in the presence of chronic infection with Helicobacter pylori variant encoding cytotoxin-associated gene A</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0686-4067</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александров</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александров А.В. – д.м.н., доцент, профессор кафедры клинической лабораторной диагностики; заведующий лабораторией функциональных методов исследования, ультразвуковой диагностики и восстановительной терапии </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Aleksandrov A.V., PhD, MD (Medicine), Professor, Department of Clinical Laboratory Diagnostics; Head, Laboratory of Functional Research Methods, Ultrasound Diagnostics and Rehabilitation Therapy </p><p>Volgograd</p></bio><email xlink:type="simple">imlab@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0438-8554</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шилова</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shilova</surname><given-names>L. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шилова Л.Н. – д.м.н., доцент, заведующая кафедрой госпитальной терапии </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Shilova L.N., PhD, MD (Medicine), Associate Professor, Head, Department of Hospital Therapy </p><p>Volgograd</p></bio><email xlink:type="simple">ludshilova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4500-7172</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александров</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александров В.А. – ассистент кафедры госпитальной терапии; младший научный сотрудник </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Aleksandrov V. A., Assistant Professor, Department of Hospital Therapy; Junior Research Associate </p><p>Volgograd</p></bio><email xlink:type="simple">alexandrow666@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>Левкина</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levkina</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Левкина М.В. – к.м.н., доцент кафедры госпитальной терапии </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Levkina M.V., PhD (Medicine), Associate Professor, Department of Hospital Therapy </p><p>Volgograd</p></bio><email xlink:type="simple">doc.marinalev@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Парамонова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Paramonova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Парамонова О.В. – к.м.н., доцент кафедры госпитальной терапии </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Paramonova O.V., PhD (Medicine), Associate Professor, Department of Hospital Therapy </p><p>Volgograd</p></bio><email xlink:type="simple">stella243@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8124-4239</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Александрова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleksandrova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александрова Н.В. – к.м.н., старший научный сотрудник  </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Aleksandrova N.V., PhD (Medicine), Senior Research Associate </p><p>Volgograd</p></bio><email xlink:type="simple">nynel68@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3898-7667</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зборовская</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zborovskaya</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зборовская И.А. – д.м.н., профессор, директор </p><p>г. Волгоград</p></bio><bio xml:lang="en"><p>Zborovskaya I.A., PhD, MD (Medicine), Professor, Director </p><p>Volgograd</p></bio><email xlink:type="simple">zborovskayaia@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Волгоградский государственный медицинский университет» Министерства здравоохранения РФ;&#13;
ФГБНУ «Научно-исследовательский институт клинической и экспериментальной ревматологии имени А.Б. Зборовского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Medical University;&#13;
А. Zborovsky Research Institute of Clinical and Experimental Rheumatology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Волгоградский государственный медицинский университет» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт клинической и экспериментальной ревматологии имени А.Б. Зборовского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>А. Zborovsky Research Institute of Clinical and Experimental Rheumatology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2023</year></pub-date><volume>25</volume><issue>4</issue><fpage>927</fpage><lpage>932</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Александров А.В., Шилова Л.Н., Александров В.А., Левкина М.В., Парамонова О.В., Александрова Н.В., Зборовская И.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Александров А.В., Шилова Л.Н., Александров В.А., Левкина М.В., Парамонова О.В., Александрова Н.В., Зборовская И.А.</copyright-holder><copyright-holder xml:lang="en">Aleksandrov A.V., Shilova L.N., Aleksandrov V.A., Levkina M.V., Paramonova O.V., Aleksandrova N.V., Zborovskaya I.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://www.mimmun.ru/mimmun/article/view/2702">https://www.mimmun.ru/mimmun/article/view/2702</self-uri><abstract><p>Цель исследования – оценить взаимосвязь между серопозитивностью по антителам к циклическому цитруллинированному пептиду и хронической инфекцией Helicobacter pylori (H. pylori) у пациентов с ревматоидным артритом (РА). В исследование были включены 92 женщины с умеренной активностью РА. В иммуноферментном анализе определяли сывороточные антитела к циклическому цитруллинированному пептиду (аnti-CCP), антитела к H. pylori (anti-H. pylori-IgG), суммарные антитела к антигену CagA H. pylori (anti-CagA); наличие позитивного результата anti-CagA-IgG подтверждали методом иммуноблота. 68,5% больных РА показали положительный результат anti-H. pylori-IgG, причем среди пациентов данной группы 40% дали положительный результат на anti-CagA-IgG. Все участники исследования были распределены на группы: I – H. pylori серонегативные пациенты (H. pylori- ); II – H. pylori положительные, но CagA отрицательные (H. pylori+/CagA- ); III – пациенты сероположительные и на H. pylori, и на CagA (CagA+). Показатели anti-CCP у больных РА с CagA+ (группа III) были достоверно выше не только по сравнению с группой больных, серонегативных по H. pylori (p &lt; 0,001), но и по сравнению с пациентами из группы II (H. pylori+/CagA- ) (p &lt; 0,041). Изучение влияния активности РА, наличия РФ и H. pylori данных факторов на содержание anti-CCP продемонстрировало незначительную долю изменчивости anti-CCP при высоком удельном вкладе H. pylori (beta = 0,25). Добавление в представленную модель показателя CagA(+) (beta = 0,503) позволило описать изменчивость anti-CCP практически в 30% случаев (R2 = 0,29). В группе больных РА с показателями anti-CCP, превышающими установленное пороговое значение в 20 МЕ/мл (показатель нормы), наблюдалось повышение доли больных, инфицированных H. pylori (p &lt; 0,001), но не доля CagA-положительных пациентов (p = 0,06). При увеличении порогового уровня до 60 МЕ/мл (трехкратное превышение верхней границы нормы) у пациентов с достоверно высоким anti-CCP связь с позитивностью на CagA стала значимой (p = 0,005). CagA, обладая высокой иммуногенностью, способен вызывать воспалительную реакцию в организме хозяина, которая выходит за рамки действия самой H. pylori. Необходимы дополнительные экспериментальные исследования для изучения возможных клинических и лабораторных ассоциаций, которые могут оказать влияние на тактику лечения СagA+ пациентов с РА, серопозитивных по антицитруллинированным антителам, а также оценить эффективность эрадикации H. pylori в данной группе.</p></abstract><trans-abstract xml:lang="en"><p>The study aimed to evaluate the association between cyclic citrullinated peptide antibody seropositivity and chronic Helicobacter pylori (H. pylori) infection in patients with rheumatoid arthritis (RA). We examined 92 women with moderate RA activity. Serum antibodies to cyclic citrullinated peptide (antiCCP), antibodies to H. pylori (anti-H. pylori-IgG), and total antibodies to H. pylori CagA antigen (antiCagA) were determined by enzyme immunoassay; the presence of anti-CagA-IgG positivity was confirmed by immunoblot. 68.5% of RA patients were positive for anti-H. pylori-IgG, and 44.4% of patients in this group were positive for anti-CagA-IgG. All the study participants were divided into three groups: I – H. pylori seronegative (H. pylori- ); II – H. pylori positive, CagA negative (H. pylori+/CagA- ); III – H. pylori positive and CagA positive (CagA+). The anti-CCP values in RA patients with CagA+ (group III) were significantly higher not only in comparison with patients seronegative for H. pylori (p &lt; 0.001), but also in comparison with patients from group II (H. pylori+/CagA- ) (p = 0.041). A study of the influence of the RA activity, the presence of RF and H. pylori on anti-CCP content demonstrated a small proportion of anti-CCP variability (R2 = 0.09), with a high contribution of H. pylori (beta = 0.25). The addition of the CagA(+) index (beta = 0.503) to the presented model allowed us to describe the variability of anti-CCP in almost 30% of cases (R2 = 0.29). In the group of RA patients with anti-CCP values exceeding the established threshold value of 20 U/mL (normal index), there was an increase in the proportion of patients infected with H. pylori (p &lt; 0.001), but not the proportion of CagA-positive patients (p = 0.06). When the threshold level was increased to 60 U/mL (three times the upper limit of normal) in patients with significantly high anti-CCP, the association with positivity for CagA became significant (p = 0.005). CagA is highly immunogenic and is capable of inducing an inflammatory response in the host that goes beyond the effect of H. pylori itself. Additional experimental studies are needed to investigate possible clinical and laboratory associations that may influence the treatment tactics of CagA+ patients with RA who are seropositive for anti-citrullinated antibodies, as well as to evaluate the possible effects of therapeutic intervention aimed at the eradication of H. pylori in this group.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ревматоидный артрит</kwd><kwd>антитела к циклическому цитруллинированному пептиду</kwd><kwd>инфекция</kwd><kwd>диагностика</kwd><kwd>хеликобактер пилори</kwd><kwd>белок CagA</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rheumatoid arthritis</kwd><kwd>antibodies to cyclic citrullinated peptide</kwd><kwd>infection</kwd><kwd>diagnostics</kwd><kwd>Helicobacter pylori</kwd><kwd>CagA protein</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">Bartels L.E., Pedersen A.B., Kristensen N.R., Jepsen P., Vilstrup H., Stengaard-Pedersen K., Dahlerup J.F. 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