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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Allergy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Allergy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский Аллергологический Журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1810-8830</issn><issn publication-format="electronic">2686-682X</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">677</article-id><article-id pub-id-type="doi">10.36691/RJA677</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Chitinase-like protein YKL-40 from nasal mucosa as a biomarker of allergic rhinitis</article-title><trans-title-group xml:lang="ru"><trans-title>Хитиназоподобный белок YKL-40 назального секрета как потенциальный биомаркер при персистирующем аллергическом рините</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tyurin</surname><given-names>YU A</given-names></name><name xml:lang="ru"><surname>Тюрин</surname><given-names>Юрий Александрович</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sukmanskaya</surname><given-names>E O</given-names></name><name xml:lang="ru"><surname>Сукманская</surname><given-names>Е О</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kulikov</surname><given-names>S N</given-names></name><name xml:lang="ru"><surname>Куликов</surname><given-names>С Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fassakhov</surname><given-names>R S</given-names></name><name xml:lang="ru"><surname>Фассахов</surname><given-names>Р С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan Cientific Research Institute of Epidemiology and Microbiology, Russia</institution></aff><aff><institution xml:lang="ru">Казанский научно-исследовательский институт эпидемиологии и микробиологии</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kazan State Medical Universityte, Russia</institution></aff><aff><institution xml:lang="ru">Казанский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2012-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2012</year></pub-date><volume>9</volume><issue>4</issue><issue-title xml:lang="en">NO4 (2012)</issue-title><issue-title xml:lang="ru">№4 (2012)</issue-title><fpage>13</fpage><lpage>17</lpage><history><date date-type="received" iso-8601-date="2020-03-10"><day>10</day><month>03</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2012, Pharmarus Print Media</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2012, Фармарус Принт Медиа</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="en">Pharmarus Print Media</copyright-holder><copyright-holder xml:lang="ru">Фармарус Принт Медиа</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2014-12-15"/></permissions><self-uri xlink:href="https://rusalljournal.ru/raj/article/view/677">https://rusalljournal.ru/raj/article/view/677</self-uri><abstract xml:lang="en"><p>Background. Chitinase-like protein YKL-40 plays an important role in human atopic diseases. The aim of this study was to determine of the level of chitinase-like protein YKL-40 in the secretions of nasal mucosa of patients with chronic allergic rhinitis. Methods. Samples of allergic nasal mucosa were obtained from twelve patients with perennial allergic rhinitis. Measurement of nasal YKL-40 levels was performed with modification in duplicate using commercially available ELISA kits for YKL-40. The amount of nasal eosinophils and neutrophils were also determined. Results. There were significant differences between healthy volunteers and patients with allergic rhinitis for mucosal YKL-40 levels and the amount of nasal eosinophil and neutrophil cells, which have some characteristics closely associated with allergic response. The nasal YKL-40 levels in patients with allergic rhinitis were in tens times more higher than those in controls. Conclusion. Thus, we conclude that the level of chitinase-like protein YKL-40 was upregulated in allergic nasal mucosa compared with normal nasal mucosa, suggesting their roles in the pathogenesis of allergic rhinitis.</p></abstract><trans-abstract xml:lang="ru"><p>Цель работы. Определение уровня хитиназоподобного белка YKL-40 в назальном секрете пациентов с персистирующим аллергическим ринитом (ПАр) с сенсибилизацией неинфекционными ингаляционными аллергенами. Материалы и методы. Проведено одномоментное исследование содержания в назальных секретах 30 пациентов с ПАР, 20 здоровых добровольцев и 32 пациентов с инфекционным ринитом хитиназоподобного белка YKL-40 иммуноферментным методом тест-системой Metra YKL-40, Quidel, США. Результаты. В период обострения у пациентов с персистирующим аллергическим ринитом относительное содержание гликопротеина YKL-40 в назальном секрете в 43 раза превышало содержание этого гликопротеина в секрете здоровых добровольцев. Заключение. Определение YKL-40 в назальном секрете у пациентов с аллергическим ринитом может служить одним из дополнительных биохимических маркеров, подтверждающих аллергический характер воспалительной реакции в пораженном органе.</p></trans-abstract><kwd-group xml:lang="en"><kwd>allergic rhinitis</kwd><kwd>YLK-40 glycoprotein</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>персистирующий аллергический ринит</kwd><kwd>гликопротеин YKL-40</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Reese T.A., Liang H.E., Tager A.M. et al. Chitin induces accumulation in tissue of innate immune cells assotiated with allergy. Nature. 2007, v. 447, p. 92-96.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Zhao J., Zhu H., Wong C.H. et al. Increased lungkine and chitinase levels in allergic airway inflammation: a proteomics approach. 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