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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">mrj</journal-id><journal-title-group><journal-title xml:lang="ru">Современная ревматология</journal-title><trans-title-group xml:lang="en"><trans-title>Modern Rheumatology Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1996-7012</issn><issn pub-type="epub">2310-158X</issn><publisher><publisher-name>IMA-PRESS, LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/1996-7012-2019-1-52-57</article-id><article-id custom-type="elpub" pub-id-type="custom">mrj-885</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 INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Диагностическая ценность IgG4 сыворотки крови при IgG4-связанном заболевании: так ли она велика?</article-title><trans-title-group xml:lang="en"><trans-title>The diagnostic value of serum IgG4 for the diagnosis of IgG4-related disease: and is that so great?</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>Сокол</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokol</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгения Владимировна Сокол</p><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>Evgenia Vladimirovna Sokol</p><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><email xlink:type="simple">name.sokol@gmail.com</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>Черкасова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherkasova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</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>Торгашина</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Torgashina</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Научно-исследовательский институт ревматологии им. В.А. Насоновой</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.A. Nasonova Research Institute of Rheumatology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>26</day><month>03</month><year>2019</year></pub-date><volume>13</volume><issue>1</issue><fpage>52</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сокол Е.В., Черкасова М.В., Торгашина А.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Сокол Е.В., Черкасова М.В., Торгашина А.В.</copyright-holder><copyright-holder xml:lang="en">Sokol E.V., Cherkasova M.V., Torgashina A.V.</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://mrj.ima-press.net/mrj/article/view/885">https://mrj.ima-press.net/mrj/article/view/885</self-uri><abstract><p>IgG4-связанное заболевание (IgG4-C3) — системное иммуноопосредованное заболевание, характеризующееся формированием опухолеподобных фибровоспалительных очагов в различных органах и повышением уровня IgG4 в сыворотке крови и тканях у большинства пациентов. Патогенез заболевания, в том числе роль IgG4, точно не установлен. Гиперсекреция IgG4 в сыворотке и тканях — неспецифический признак и встречается при других ревматических, инфекционных и злокачественных заболеваниях.</p><p>Цель исследования — определить круг нозологий, ассоциирующихся с повышением уровня IgG4 в сыворотке крови, а также частоту и характер этого повышения у пациентов с IgG4-C3.</p><sec><title>Пациенты и методы</title><p>Пациенты и методы. Проанализированы результаты всех измерений IgG4 в сыворотке, проводившихся в лаборатории иммунологии и молекулярной биологии ревматических заболеваний НИИР им. В.А. Насоновой в 2017—2018 гг. Отдельно оценены показатели IgG4 сыворотки у 52 пациентов с верифицированным IgG4-C3, согласно универсальным диагностическим критериям H. Umehara и соавт. (2011).</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. В 2017—2018 гг. исследование уровня IgG4 сыворотки проведено у 247пациентов. Его повышение выявлено у 76 (30,8%) пациентов, из них только у 28 (36,8%) установлен диагноз IgG4-C3. Наряду с IgG4-C3 повышение содержания IgG4 в сыворотке встречалось при васкулите, ассоциированном с антинейтрофильными цитоплазматическими антителами (АН-ЦА), ревматоидном артрите (РА) и системной красной волчанке (СКВ). Самым высоким средний уровень IgG4 сыворотки был в группе пациентов с доказанным IgG4-C3: 6,31 против 3,2; 3,22 и 2,69 г/л при АНЦА-ассоциированном васкулите, РА и СКВ соответственно.</p><p>У 52 пациентов с IgG4-C3уровень IgG4 &gt;1,35 г/л выявлен в 88% случаев. Медиана уровня IgG4 в сыворотке составила 3,45 г/л [2,1; 11,4]. Максимальное повышение наблюдалось у пациентов с генерализованной лимфоаденопатией и пациентов с IgG4-связанным сиалоаденитом и дакриоаденитом (болезнь Микулича). Уровень IgG4 в сыворотке положительно коррелировал с числом пораженных органов (коэффициент корреляции Спирмена 0,39, р=0,0056, критерий Стьюдента). На фоне терапии у всех пациентов независимо от клинического ответа на лечение наблюдалась тенденция к снижению уровня IgG4 сыворотки, однако через 12 мес лечения он нормализовался только у 73%.</p></sec><sec><title>Выводы</title><p>Выводы. Повышение концентрации IgG4 в сыворотке и тканях неспецифично, но в настоящий момент это единственный маркер заболевания, доступный в клинической практике. Для правильной трактовки диагноза необходима оценка всего комплекса клинических проявлений, данных визуализационных исследований и патоморфологических находок.</p></sec></abstract><trans-abstract xml:lang="en"><p>IgG4-related disease (IgG4-RD) is a systemic immune mediated condition that is characterized by the formation of tumor-like fibroinflamma-tory foci in different organs and by the elevation of serum and tissue IgG4 levels in the majority of patients. The pathogenesis of the disease, including the role of IgG4, has not been established exactly. Serum and tissue IgG4 hypersecretion is a nonspecific sign and occurs in many rheumatic, infectious, and malignant diseases.</p><sec><title>Objective</title><p>Objective: to determine the range of nosological entities associated with the increase in serum IgG4 levels, as well as the frequency and nature of this increase in patients with IgG4-RD.</p></sec><sec><title>Patients and methods</title><p>Patients and methods. The results of all serum IgG4 measurements carried out in the Laboratory of Immunology and Molecular Biology of Rheumatic Diseases, V.A. Nasonova Research Institute of Rheumatology, in 2017—2018 were analyzed. Serum IgG4 parameters were separately estimated in 52 patients with verified IgG4-RD according to the universal diagnostic criteria proposed by H. Umehara et al (2011).</p></sec><sec><title>Results and discussion</title><p>Results and discussion. In 2017—2018, a total of247patients were tested for serum IgG4 levels. The latter were elevated in 76 (30.8%) patients, but only 28 (36.8%) were diagnosed as having IgG4-RD. Along with IgG4-RD, antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitis, rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE) were characterized by increased serum IgG4 levels. The highest median IgG4 level was found in patients with a verified diagnosis of IgG4-RD: 6.31 vs 3.2, 3.22, and 2.69 g/L in ANCA-associated vasculitis, RA, and SLE, respectively.</p><p>In 52 patients with IgG4-RD, the IgG4 level &gt;1.35 g/L was found in 88% of cases. The median serum IgG4 level was 3.45 g/L (2.1; 11.4). The highest level was observed in patients with generalized lymphadenopathy and in those with IgG4-related sialoadenitis and dacryoadenitis (Mikulicz disease). The serum IgG4 level was positively correlated with the number of affected organs (Spearman's correlation coefficient, 0.39; p=0.0056, Student's t-test). All the patients showed a tendency towards decreasing serum IgG4 levels during treatment regardless of its clinical response; however, the levels returned to normal only in 73% after 12 months of treatment.</p></sec><sec><title>Conclusion</title><p>Conclusion. The increased serum and tissue IgG4 concentration is not specific, but at the moment it is the only disease marker available in clinical practice. To correctly interpret the diagnosis, it is necessary to assess the entire set of clinical manifestations, imaging data, and morpholopathological findings.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>IgG4-связанное заболевание</kwd><kwd>IgG4 сыворотки</kwd><kwd>болезнь Микулича</kwd><kwd>АНЦА-ассоциированный васкулит</kwd><kwd>системная красная волчанка</kwd><kwd>ревматоидный артрит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>IgG4-related disease</kwd><kwd>serum IgG4</kwd><kwd>Mikulicz disease</kwd><kwd>ANCA-associated vasculitis</kwd><kwd>systemic lupus erythematosus</kwd><kwd>rheumatoid arthritis</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">Deshpande V, Zen Y, Chan JK, et al. Consensus statement on the pathology of IgG4-related disease. Mod Pathol. 2012 Sep; 25(9):1181-92. doi: 10.1038/mod-pathol.2012.72. 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