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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Immunology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Immunology</journal-title><trans-title-group xml:lang="ru"><trans-title>Russian Journal of Immunology</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1028-7221</issn><issn publication-format="electronic">2782-7291</issn><publisher><publisher-name xml:lang="en">Russian Society of Immunology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">887</article-id><article-id pub-id-type="doi">10.31857/S102872210002403-8</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">IgAs, IL-4, and BAFF in nasal fluid and CD20+ B cells in nasopharyngeal tonsil in transient hypogammaglobulinaemia of infancy</article-title><trans-title-group xml:lang="ru"><trans-title>Содержание IgAs, IL-4 и BAFF в назальных секретах и экспрссия CD20+ на В-клетках в глоточной миндалине у детей с транзиторной гипогаммаглобулинемией детского возраста</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Климов</surname><given-names>V. .</given-names></name><name xml:lang="ru"><surname>Климов</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Klimov</surname><given-names>A. .</given-names></name><name xml:lang="ru"><surname>Климов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Siberian State Medical University</institution></aff><aff><institution xml:lang="ru">Сибирский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2018</year></pub-date><volume>21</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>321</fpage><lpage>324</lpage><history><date date-type="received" iso-8601-date="2020-10-22"><day>22</day><month>10</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Климов V..., Klimov A...</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Климов В.В., Климов А.В.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Климов V..., Klimov A...</copyright-holder><copyright-holder xml:lang="ru">Климов В.В., Климов А.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://rusimmun.ru/jour/article/view/887">https://rusimmun.ru/jour/article/view/887</self-uri><abstract xml:lang="en"><p>24 children at the age from 6 months to 4 years with recurrent respiratory infections and 12 children at the same age with transient hypogammaglobulinaemia of infancy (THI) were examined. An essential decrease in IgAs and BAFF in nasal fl uid and the CD20+ expression on nasopharyngeal tonsil’s B cells in children with THI has registered.</p></abstract><trans-abstract xml:lang="ru"><p>Обследовано 24 ребёнка в возрасте от 6 месяцев до 4 лет с частыми воспалительными инфекциями верхних дыхательных путей и 12 детей того же возраста, страдающих транзиторной гипогаммаглобулинемией (ТГД). При ТГД зарегистрировано статистически значимое снижение IgAs, BAFF в назальном секрете и экспрессии CD20+ на В-клетках глоточной миндалины.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>children</kwd><kwd>transient hypogammaglobulinaemia</kwd><kwd>secretory IgA</kwd><kwd>cytokines</kwd><kwd>B cells</kwd><kwd>дети</kwd><kwd>транзиторная гипогаммаглобулинемия</kwd><kwd>секреторный IgA</kwd><kwd>цитокины</kwd><kwd>В-клетки</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Oliveira J.B., Fleisher T. A. 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