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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">farmaec</journal-id><journal-title-group><journal-title xml:lang="en">FARMAKOEKONOMIKA. Modern Pharmacoeconomics and Pharmacoepidemiology</journal-title><trans-title-group xml:lang="ru"><trans-title>ФАРМАКОЭКОНОМИКА. Современная фармакоэкономика и фармакоэпидемиология</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2070-4909</issn><issn pub-type="epub">2070-4933</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2070-4909/farmakoekonomika.2025.304</article-id><article-id custom-type="elpub" pub-id-type="custom">farmaec-1159</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="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ПУБЛИКАЦИИ</subject></subj-group></article-categories><title-group><article-title>Clinical and diagnostic significance of isolated detection of IgA antibodies to deamidated gliadin peptides in IgA nephropathy patients</article-title><trans-title-group xml:lang="ru"><trans-title>Клинико-диагностическое значение изолированного выявления антител класса IgA к деамидированным пептидам глиадина у пациентов с IgA-нефропатией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3787-1147</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Манцаева</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Mantsaeva</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Манцаева Мария Евгеньевна</p><p>2-я Брестская ул., д. 5, Москва 123056; </p><p>ул. Намёткина, д. 16, корп. 4, Москва 117420; </p><p>ул. Народного ополчения, д. 35, Москва 123060</p></bio><bio xml:lang="en"><p>Mariya E. Mantsaeva</p><p>5 2nd Brestskaya Str., Moscow 123056;</p><p>16 Nametkina Str., Moscow 117420; </p><p>35 Narodnogo Opolcheniya Str., Moscow 123060</p></bio><email xlink:type="simple">MariyaMantsaeva@yandex.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/0000-0002-0459-0488</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корабельников</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Korabelnikov</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корабельников Даниил Иванович, к.м.н., доцент</p><p>Scopus Author ID: 7801382184</p><p>2-я Брестская ул., д. 5, Москва 123056</p></bio><bio xml:lang="en"><p>Daniil I. Korabelnikov, PhD, Assoc. Prof.</p><p>Scopus Author ID: 7801382184</p><p>5 2nd Brestskaya Str., Moscow 123056</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7063-6563</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisov</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борисов Алексей Геннадьевич, к.м.н., доцент</p><p>2-я Брестская ул., д. 5, Москва 123056; </p><p>ул. Баррикадная, д. 2/1, стр. 1, Москва 125993; </p><p>ул. Раменки, д. 29, Москва 119607</p></bio><bio xml:lang="en"><p>Alexey G. Borisov, PhD</p><p>5 2nd Brestskaya Str., Moscow 123056; </p><p>2/1 bldg 1, Barrikadnaya Str., Moscow 125993; </p><p>29 Ramenky Str., Moscow 119607</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Автономная некоммерческая организация дополнительного профессионального образования «Московский медико-социальный институт им. Ф.П. Гааза»; Медицинское частное учреждение «Отраслевой клинико-диагностический центр ПАО «Газпром»; Федеральное казенное учреждение здравоохранения «Главный клинический госпиталь Министерства внутренних дел Российской Федерации»<country>Россия</country></aff><aff xml:lang="en">Moscow Haass Medical and Social Institute; Branch Clinical and Diagnostic Center of PJSC Gazprom; Main Clinical Hospital of the Ministry of Internal Affairs of the Russian Federation<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Автономная некоммерческая организация дополнительного профессионального образования «Московский медико-социальный институт им. Ф.П. Гааза»<country>Россия</country></aff><aff xml:lang="en">Moscow Haass Medical and Social Institute<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Автономная некоммерческая организация дополнительного профессионального образования «Московский медико-социальный институт им. Ф.П. Гааза»; Федеральное государственное бюджетное образовательное учреждение дополнительного профессионального образования «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации; Государственное бюджетное учреждение здравоохранения г. Москвы «Городская поликлиника № 209 Департамента здравоохранения г. Москвы»<country>Россия</country></aff><aff xml:lang="en">Moscow Haass Medical and Social Institute; Russian Medical Academy of Continuous Professional Education; City Polyclinic No. 209<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>02</day><month>05</month><year>2025</year></pub-date><volume>18</volume><issue>1</issue><fpage>62</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Mantsaeva M.E., Korabelnikov D.I., Borisov A.G., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Манцаева М.Е., Корабельников Д.И., Борисов А.Г.</copyright-holder><copyright-holder xml:lang="en">Mantsaeva M.E., Korabelnikov D.I., Borisov A.G.</copyright-holder><license 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.pharmacoeconomics.ru/jour/article/view/1159">https://www.pharmacoeconomics.ru/jour/article/view/1159</self-uri><abstract><sec><title>Background</title><p>Background. Immunoglobulin A nephropathy (IgAN) is a serious medical problem reported to be one of the most common causes of terminal renal failure. Current research increasingly focuses on the role of intestinal mucosa-associated lymphoid tissue (MALT) in IgAN pathogenesis, especially under the effect of food antigens, such as gluten. Patients with IgAN often have IgA antibodies to deamidated gliadin peptides (antiDGP IgA). Studying their isolated carriage can help in the development of new diagnostic and therapeutic methods aimed at regulating intestinal immune response and managing the highly active course and progression of IgAN.</p></sec><sec><title>Objective</title><p>Objective: To establish the clinical and diagnostic role of anti-DGP IgA in IgAN patients for the development of additional personalized clinical approaches and optimization of treatment strategies.</p></sec><sec><title>Material and methods</title><p>Material and methods. A total of 105 IgAN patients aged 18 to 64 years participated in the controlled, prospective, comparative, cohort study. Demographic, anamnestic, clinical, and treatment data were used. The blood of patients was tested for celiac-specific antibodies: anti-DGP IgA, IgA antibodies to tissue transglutaminase (anti-TTG IgA), IgA antibodies to endomysium. As a result, patients were divided into two groups depending on the presence of anti-DGP IgA: the main group (n=20) comprising IgAN patients with detected antibodies and the control group (n=85) consisting of patients seronegative for celiac antibodies. One patient was seropositive for both anti-DGP and anti-TTG IgA.</p></sec><sec><title>Results</title><p>Results. As compared to the control group, the patients of the main group exhibited higher IgAN activity, which was assessed in terms of morning proteinuria (0.96 [0.70–1.60] g/l; p=0.005), daily proteinuria (1.50 [0.70–2.50] g/day; p=0.014), erythrocyturia (20.00 [15.00–25.00] per high power field; p=0.015), as well as levels of systolic (147.65±12.06 mm Hg; p=0.001) and diastolic (94.35±12.78 mm Hg; p=0.006) blood pressure. The detection of anti-DGP IgA was associated with a high concentration of serum IgA (4.35±1.06 g/l; p &lt; 0.001). The direct correlation between anti-DPG IgA and IgA (ρ=0.247; p=0.020) can most likely be attributed to the hyperreactivity of IgA-producing B-lymphocytes of the intestinal mucosa in response to gluten. In the main group, the risk of a 50% decrease in the estimated glomerular filtration rate or progression to terminal renal failure within 5 years after the performed renal biopsy was statistically significantly higher than in the control group (15.05% [9.32–20.91] vs. 7.99% [4.97–11.73]; p=0.015).</p></sec><sec><title>Conclusion</title><p>Conclusion. The obtained results indicate the possibility of using anti-DGP IgA as a potential risk marker for IgAN progression. Further studies into the effect of food antigens on the immune response in IgAN opens up new prospects for the development of effective treatment methods.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Актуальность</title><p>Актуальность. Иммуноглобулин A-нефропатия (IgA-H) представляет собой серьезную медицинскую проблему как одна из наиболее частых причин терминальной почечной недостаточности. Современные исследования все больше внимания уделяют роли лимфоидной ткани, ассоциированной со слизистыми оболочками (англ. mucosa-associated lymphoid tissue, MALT) кишечника в патогенезе IgA-H, особенно в контексте влияния пищевых антигенов, таких как глютен. У пациентов с IgA-Н часто обнаруживаются антитела (АТ) класса IgA к деамидированным пептидам глиадина (ДПГ). Изучение их изолированного носительства может помочь в разработке новых методов диагностики и лечения, направленных на коррекцию кишечного иммунитета и контроль высокоактивного течения и прогрессирования IgA-H.</p></sec><sec><title>Цель</title><p>Цель: установить клинико-диагностическую роль АТ IgA к ДПГ у пациентов с IgA-H для разработки дополнительных персонифицированных клинических подходов и оптимизации лечебных стратегий.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В проспективном сравнительном когортном контролируемом исследовании приняли участие 105 пациентов с диагнозом IgA-H в возрасте от 18 до 64 лет. Использовались демографические, анамнестические и клинические показатели, сведения о лечении. Сыворотка крови больных исследована на антитела, специфичные для целиакии: АТ IgA к ДПГ, тканевой трасглутаминазе (ТТГ), эндомизию. В результате сформированы две группы пациентов в зависимости от наличия АТ IgA к ДПГ: в основную группу (n=20) вошли больные IgA-H с выявленными АТ, в контрольную (n=85) – серонегативные по целиакийным АТ. Один пациент был серопозитивен по АТ IgA к ДПГ и ТТГ одновременно.</p></sec><sec><title>Результаты</title><p>Результаты. У пациентов основной группы активность IgA-Н, оцененная по выраженности утренней протеинурии (0,96 [0,70–1,60]г/л; р=0,005), суточной протеинурии (1,50 [0,70–2,50] г/сут; р=0,014), эритроцитурии (20,00 [15,00–25,00] в поле зрения; р=0,015), уровням систолического (147,65±12,06 мм рт. ст.; р=0,001) и диастолического (94,35±12,78 мм рт. ст.; р=0,006) артериального давления, оказалась выше, чем в группе контроля. Обнаружение АТ IgA к ДПГ ассоциировано с высокой концентрацией сывороточного IgA (4,35±1,06 г/л; р &lt;0,001). Прямая корреляционная связь между АТ IgA к ДПГ и IgA (ρ=0,247; р=0,020) наиболее вероятно объясняется гиперреактивностью IgA-продуцирующих В-лимфоцитов слизистых кишечника в ответ на глютен. У больных основной группы риск снижения расчетной скорости клубочковой фильтрации на 50% или прогрессирования до терминальной почечной недостаточности в течение 5 лет после выполненной нефробиопсии статистически значимо выше, чем у пациентов группы контроля (15,05% [9,32– 20,91] против 7,99% [4,97–11,73]; р=0,015).</p></sec><sec><title>Заключение</title><p>Заключение. Полученные результаты указывают на значимость АТ IgA к ДПГ как потенциального маркера риска прогрессирования IgA-H. Дальнейшее изучение влияния пищевых антигенов на иммунный ответ при IgA-Н открывает новые перспективы для разработки эффективных методов лечения.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>иммуноглобулин A-нефропатия</kwd><kwd>глютен</kwd><kwd>антитела IgA к деамидированным пептидам глиадина</kwd><kwd>целиакия</kwd><kwd>MALT-система кишечника</kwd></kwd-group><kwd-group xml:lang="en"><kwd>immunoglobulin A nephropathy</kwd><kwd>gluten</kwd><kwd>IgA antibodies to deamidated gliadin peptides</kwd><kwd>celiac disease</kwd><kwd>intestinal MALT-system</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Авторы заявляют об отсутствии финансовой поддержки</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The authors declare no funding</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Гломерулярные болезни: иммуноглобулин А-нефропатия. 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