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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">nefr</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology (Saint-Petersburg)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-6274</issn><issn pub-type="epub">2541-9439</issn><publisher><publisher-name>Pavlov First Saint-Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36485/1561-6274-2021-25-3-61-67</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-1976</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 СТАТЬИ. КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES. CLINICAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>IgA-нефропатия: анализ темпов прогрессирования  в детском возрасте</article-title><trans-title-group xml:lang="en"><trans-title>IgA nephropathy: analysis of progression in pediatric 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/0000-0001-8915-445X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козыро</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazyra</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доц. Козыро Инна Александровна, канд. мед. наук, 1-я кафедра детских болезней.</p><p>220116, г. Минск, пр. Дзержинского, д. 83. </p><p> Тел.: +375173695761</p></bio><bio xml:lang="en"><p>Associate Professor Ina Kazyra MD, PhD, 1st Department of Pediatrics</p><p>220116 Minsk, av. Dzerzhynskogo 83,</p><p>Phone +375173695761</p></bio><email xlink:type="simple">kozyroia@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/0000-0003-3434-5392</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сукало</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukalo</surname><given-names>А. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сукало Александр Васильевич, академик Национальной Академии Наук Беларуси, д-р мед. наук, 1-я кафедра детских болезней, зав. кафедрой</p><p>220116, г. Минск, пр. Дзержинского, д. 83.</p><p>Тел.: +375173695761</p></bio><bio xml:lang="en"><p> Alexander Sukalo, MD, PhD, DMedSci, Academician of National Academy of Sciences, 1st Department of Pediatrics</p><p>220116, Minsk, av. Dzerzhynskogo 83</p><p> Phone +375173695761</p></bio><email xlink:type="simple">kozyroia@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>учреждение образования «Белорусский государственный медицинский университет»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarussian State Medical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Учреждение образования «Белорусский государственный медицинский университет»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarussian State Medical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>22</day><month>04</month><year>2021</year></pub-date><volume>25</volume><issue>3</issue><fpage>61</fpage><lpage>67</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козыро И.А., Сукало А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Козыро И.А., Сукало А.В.</copyright-holder><copyright-holder xml:lang="en">Kazyra I.A., Sukalo А.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://journal.nephrolog.ru/jour/article/view/1976">https://journal.nephrolog.ru/jour/article/view/1976</self-uri><abstract><p>Целью исследования явился анализ темпов прогрессирования IgA-нефропатии (IgAN) в детском возрасте и факторов, влияющих на прогноз. В исследование включено 54 ребенка с морфологически верифицированным диагнозом IgAN (36 – мальчиков, 18 – девочек) в возрасте от 2 до 17 лет, находившихся под наблюдением в нефрологическом отде-лении УЗ «2-я детская городская клиническая больница» Республиканского Центра детской нефрологии и почечной заместительной терапии г. Минска в период с 2013 по 2020 г. Показано участие deGal-IgA1, маркеров активации Т- и В-лимфоцитов, провоспалительных и профибротических молекул в развитии болезни. АГ зарегистрирована у 18 из 54 (33,3 %) детей, ночная АГ – у 11/43 (23,4 %), признаки кардиоремоделирования – у 10/49 (20,4 %). Снижение уровня адипонектина, витамина D, повышение обестатина в сравнении со здоровыми детьми позволяет отнести пациентов с IgAN в группу риска развития кардиоваскулярных нарушений, что предполагает необходимость своевременного контроля и коррекции. В большинстве случаев в детском возрасте IgAN характеризуется доброкачественным течением без признаков прогрессирования. Показана прогностическая значимость высокоактивного нефрита, нарушения функции почек в дебюте болезни, Т1 (тубулярной атрофии/интерстициального фиброза в 25–50 %) по MEST, протеинурии и свыше 0,8 г/сут как факторов риска прогрессирования.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to analyze the rate of progression of IgA nephropathy (IgAN) in childhood and factors affecting prognosis. The study included 54 children with a morphologically verified diagnosis of IgAN (36 boys, 18 girls) aged 2 to 17 years, who were under observation in the nephrology department of the "2nd Children's City Clinical Hospital" of the National Center for Pediatric Nephrology and Renal Replacement therapy in Minsk in the period from 2013 to 2020. The participation of deGal-IgA1, markers of T- and B-lymphocyte activation, pro-inflammatory and pro-fibrotic molecules in the development of the disease has been shown. AG was registered in 18 of 54 (33,3 %) children, nocturnal AG in 11/43 (23,4 %), signs of cardiac remodeling in 10/49 (20,4 %). A decrease in the level of adiponectin, vitamin D, an increase in obestatin in comparison with healthy children makes it possible to attribute patients with IgAN to the risk group for the development of cardiovascular disorders, which implies the need for timely monitoring and correction. In most cases in childhood IgAN is characterized by a benign course without signs of progression. The prognostic significance of highly active nephritis, impaired renal function at the onset of the disease, T1 (tubular atrophy / interstitial fibrosis in 25–50 %) by MEST, proteinuria over 0,8 g/24 hours as risk factors for progression was shown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>IgA-нефропатия</kwd><kwd>прогрессирование</kwd><kwd>дети</kwd></kwd-group><kwd-group xml:lang="en"><kwd>IgA nephropathy</kwd><kwd>progression</kwd><kwd>children</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">Boyd JK, Cheung CK, Molyneux K et al. An update on the pathogenesis and treatment of IgA nephropathy. Kidney Int2012; 81: 833–843</mixed-citation><mixed-citation xml:lang="en">Boyd JK, Cheung CK, Molyneux K et al. An update on the pathogenesis and treatment of IgA nephropathy. 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