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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1814-6023-2019-16-3-317-323</article-id><article-id custom-type="elpub" pub-id-type="custom">vestim-509</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>КЛИНИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Иммунофлуоресцентная микроскопия у пациентов с IGA-нефропатией</article-title><trans-title-group xml:lang="en"><trans-title>Immunofluorescent microscopy in patients with IgA nephropathy</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>Комиссаров</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Komissarov</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Комиссаров Кирилл Сергеевич – канд. мед. наук, доцент, заведующий отделом</p><p>ул. Семашко, 8, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Kirill S. Komissarov – Ph. D. (Med.), Assistant Professor, Head of the Department</p><p>8, Semashko Str., 220116, Minsk</p></bio><email xlink:type="simple">kirill_ka@tut.by</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>Дмитриева</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitrieva</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитриева Маргарита Владимировна – врач-патологоанатом</p><p>ул. Семашко, 8/8, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Margarita V. Dmitrieva – pathologist</p><p>8/8, Semashko Str., 220116, Minsk</p></bio><email xlink:type="simple">mvdmitieva@inbox.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>Летковская</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Letkovskaya</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Летковская Татьяна Анатольевна – канд. мед. наук, доцент, заведующий кафедрой</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Tatyiana A. Letkovskaya – Ph. D. (Med.), Assistant Professor, Head of the Department</p><p>83, Dzerzhinski Ave., 220116, Minsk</p></bio><email xlink:type="simple">taletkovskaya@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пилотович</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pilotovich</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пилотович Валерий Станиславович – д-р мед. наук, профессор</p><p>ул. П. Бровки, 3/3, 220013, г. Минск</p></bio><bio xml:lang="en"><p>Valery S. Pilotovich – D. Sc. (Med.), Professor</p><p>3/3, P. Browka Str., 220013, Minsk</p></bio><email xlink:type="simple">pilotovich@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краско</surname><given-names>О. В. </given-names></name><name name-style="western" xml:lang="en"><surname>Krasko</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Красько Ольга Владимировна – канд. техн. наук, доцент, вед. науч. сотрудник</p><p>ул. Сурганова, 6, 220013, г. Минск</p></bio><bio xml:lang="en"><p>Olga V. Krasko – Ph. D. (Tech.), Assistant Professor, Leading researcher</p><p>6, Surganov Str., 220013, Minsk</p></bio><email xlink:type="simple">krasko@newman.bas-net.by</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Минский научно-практический центр хирургии, трансплантологии и гематологии</institution></aff><aff xml:lang="en"><institution>Minsk Scientific and Practical Center of Surgery, Transplantology and Hematology</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Городское клиническое патологоанатомическое бюро, Минск</institution></aff><aff xml:lang="en"><institution>City Clinical Pathology Bureau, Minsk</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Белорусская медицинская академия последипломного образования</institution></aff><aff xml:lang="en"><institution>Belarusian Medical Academy of Postgraduate Education</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Объединенный институт проблем информатики НАН Беларуси</institution></aff><aff xml:lang="en"><institution>United Institute of Informatics Problems of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>16</day><month>09</month><year>2019</year></pub-date><volume>16</volume><issue>3</issue><fpage>317</fpage><lpage>323</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Комиссаров К.С., Дмитриева М.В., Летковская Т.А., Пилотович В.С., Краско О.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Комиссаров К.С., Дмитриева М.В., Летковская Т.А., Пилотович В.С., Краско О.В.</copyright-holder><copyright-holder xml:lang="en">Komissarov K.S., Dmitrieva M.V., Letkovskaya T.A., Pilotovich V.S., Krasko O.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://vestimed.belnauka.by/jour/article/view/509">https://vestimed.belnauka.by/jour/article/view/509</self-uri><abstract><p>Целью исследования было изучить у пациентов c IgA-нефропатией (ИГАН) частоту встречаемости различных иммунофлуоресцентных паттернов, а также их взаимосвязь с гистопатологическими критериями, используемыми в Оксфордской классификации MEST-C.</p><p>Ретроспективно с учетом критериев исключения было обследовано 72 пациента с ИГАН (средний возраст 32 (26, 32,6) года), из которых 72,2% были мужчины. У 48,6% пациентов была артериальная гипертензия (медиана суточной протеинурии – 870 (355; 1420) мг), у 8,4% – изолированная гематурия (сывороточный креатинин – 104 (89; 126,5) мкмоль/л).</p><p>В ходе статистического анализа установлена взаимосвязь между интенсивностью депозитов IgA и наличием клеточных полулуний (C1-2) (p = 0,02). Депозиты С3 комплемента достоверно чаще встречались при эндотелиальной пролиферации (E1) (р = 0,007). Установлена обратная зависимость интенсивности свечения IgA от наличия депозитов IgM (p = 0,01) и прямая ее зависимость от интенсивности депозитов С3 (р = 0,001).</p><p>На основании полученных данных предполагается, что интенсивность депозитов IgA и C3 связана с гистопатологическими маркерами острой реакции С1-2 и Е1 (согласно Оксфордской гистопатологической классификации). В свою очередь наличие депозитов IgM может свидетельствовать как о ранней стадии болезни, так и о развитии склеротических изменений.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to evaluate relations between the deposition of IgA, IgG, IgM, C3, C1q and baseline clinical features and pathological findings.</p><p>According to exclusion criteria, 72 patients with diagnosed primary IgAN who were biopsied from 2015 to 2017 in the district of the Minsk city, Belarus were included for retrospective analysis. All biopsy had to be reviewed according to the Oxford classification (MEST-C). We examined the immunofluorescence staining with antibodies against IgG, IgA, IgM, C3, C1q.</p><p>Mean age was 32 (26; 42.5) years, 72.2% was men, 48.6% of the patients had arterial hypertension. Median of proteinuria was 870 (355; 1420) mg/day, 8.4% of the patients had isolated hematuria, serum creatinine – 104 (89; 126.5) µmol/l.</p><p>The patients with 3+ IgA deposits showed a significantly higher percentage of crescents (C1-2) than those with 2+ IgA deposits (p = 0.028). The presence of C3 deposits showed a gradual increase in the percentage of endothelial proliferation (E1) (p = 0.007). The degree of IgA deposits showed a significant negative relation to the IgM deposits (p = 0.01) and a positive relation to the C3 deposits (p = 0.001).</p><p>We found that the intensity of IgA and C3 deposits is associated with histopathology markers of the acute reaction (C1-2 and E1) according to the Oxford classification. At the same time, the appearance of the IgM deposits testifies the acute phase of the disease as well as the advanced sclerotic stage in some patients.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>почечная биопсия</kwd><kwd>IgA-нефропатия</kwd><kwd>имуннофлуоресцентные паттерны</kwd><kwd>иммуноглобулины</kwd><kwd>гистопатологическая картина</kwd><kwd>Оксфордская классификация</kwd><kwd>клинические проявления</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kidney biopsy</kwd><kwd>IgA nephropathy</kwd><kwd>immunofluorescence pattern</kwd><kwd>immunoglobulins</kwd><kwd>histopathology findings</kwd><kwd>Oxford classification</kwd><kwd>clinical presentations</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">Les depots intercapillaires d’IgA-IgG / J. Berger [et al.] // J. Urol. 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