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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">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2021-66-6-71-76</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-1532</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Концентрация фекального β-дефензина-2 у детей с муковисцидозом: как реагирует врожденный иммунный ответ кишечника?</article-title><trans-title-group xml:lang="en"><trans-title>Concentration of fecal β-defensin-2 in children with cystic fibrosis: how the inneral intestinal immune response?</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1695-0978</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Камилова</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamilova</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Камилова Алтиной Турсуновна – д.м.н., проф., рук. отдела гастроэнтерологии и нутрициологии</p><p>100179 Ташкент, ул. Чимбай 2, проезд Талант, д. 3</p></bio><bio xml:lang="en"><p>Tashkent</p></bio><email xlink:type="simple">okamilova@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/0000-0001-8962-8176</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахмедова</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhmedova</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ахмедова Дилором Ильхамовна – д.м.н., проф., дир.; зав. кафедрой Госпитальной педиатрии №2</p><p>100179 Ташкент, ул. Чимбай 2, проезд Талант, д. 3</p></bio><bio xml:lang="en"><p>Tashkent</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/0000-0002-3447-7793</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Умарназарова</surname><given-names>З. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Umarnazarova</surname><given-names>Z. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Умарназарова Зульхумор Ерназаровна – д.м.н., гл. науч. сотр. отдела гастроэнтерологии и нутрициологии</p><p>100179 Ташкент, ул. Чимбай 2, проезд Талант, д. 3</p></bio><bio xml:lang="en"><p>Tashkent</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4202-3203</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаева</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaeva</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдуллаева Дильрабо Абдуазизовна – к.м.н., ст. науч. сотр. гастроэнтерологии инутрициологии</p><p>100179 Ташкент, ул. Чимбай 2, проезд Талант, д. 3</p></bio><bio xml:lang="en"><p>Tashkent</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1210-6633</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Геллер</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Geller</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Геллер Светлана Игоревна – мл. науч. сотр. отдела гастроэнтерологии и нутрициологии</p><p>100179 Ташкент, ул. Чимбай 2, проезд Талант, д. 3</p></bio><bio xml:lang="en"><p>Tashkent</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Республиканский специализированный научно-практический медицинский центр педиатрии Минздрава Республики Узбекистан</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>Republican Specialized Scientific Practical Medical Center of Pediatrics</institution><country>Uzbekistan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Республиканский специализированный научно-практический медицинский центр педиатрии Минздрава Республики Узбекистан; Ташкентский медицинский педиатрический институт</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>Republican Specialized Scientific Practical Medical Center of Pediatrics; Tashkent Medical Pediatric Institute</institution><country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>20</day><month>01</month><year>2022</year></pub-date><volume>66</volume><issue>6</issue><fpage>71</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/1532">https://www.ped-perinatology.ru/jour/article/view/1532</self-uri><abstract><p>Муковисцидоз – заболевание, вызванное мутациями в гене, который кодирует белок – регулятор трансмембранной проводимости (CFTR), находящийся в апикальной мембране эпителиальных клеток дыхательных путей, кишечника и поджелудочной железы. Дефензины служат важными компонентами врожденной иммунной системы человека, играют ключевую роль в обеспечении первой линии защиты макроорганизма от инфекции, обладают высокой антимикробной, противовирусной, цитотоксической активностью.</p><sec><title>Цель исследования</title><p>Цель исследования. Определить значения фекального β-дефензина-2 у детей с муковисцидозом и выявить зависимость его уровня от внешнесекреторной функции поджелудочной железы и тяжести состояния пациентов.</p><p>Характеристика детей и методы исследования. Обследованы 57 детей, больных муковисцидозом, средний возраст составил 20,93±2,9 мес. Диагноз муковисцидоз устанавливали на основании увеличения иммунореактивного трипсина, хлоридов пота по Куку (&gt;60 мэкв/л). Для оценки экзокринной функции поджелудочной железы определяли активность фекальной эластазы. Оценка уровня фекальных β-дефензина-2 и кальпротектина проводилось с помощью количественного иммуноферментного анализа.</p></sec><sec><title>Результаты</title><p>Результаты. Уровни фекального β-дефензина-2 были повышены (108,2±11,3 нг/мл) у всех обследуемых детей. Не было выявлено корреляции между уровнем фекального β-дефензина-2 и фекальной эластазы. Уровень фекального кальпротектина в группе детей с муковисцидозом был значительно выше, чем в контрольной. Выявлена достоверная корреляция между уровнями фекального кальпротектина и фекального β-дефензина-2 (r=0,57; р&lt;0,05), однако между уровнями фекального β-дефензина-2 и фекальной эластазы корреляций не установлено. В группе детей с тяжелым течением заболевания достоверно чаще отмечалось повышение уровня фекального β-дефензина-2, фекального кальпротектина.</p></sec><sec><title>Заключение</title><p>Заключение. У детей с муковисцидозом выявлено достоверное повышение концентрации β-дефензина-2 по сравнению с контрольной группой, что подтверждает активацию системы врожденной иммунной системы слизистой оболочки кишечника. Прослежена зависимость между высокими уровнями фекального β-дефензина-2 и тяжестью течения заболевания. Уровни фекального β-дефензина-2 прямо коррелировали с концентрацией фекального кальпротектина и не отмечено корреляции между степенью выраженности панкреатической недостаточности и концентрацией фекального β-дефензина-2.</p></sec></abstract><trans-abstract xml:lang="en"><p>Cystic fibrosis is a disease caused by mutations in a gene encoding CFTR-protein (Cystic Fibrosis Transmembrane conductance Regulator), located in the apical membrane of epithelial cells of the respiratory tract, intestines and pancreas. Defensins serve as important components of the innate human immune system, they play a key role in providing the first line of defense of a macroorganism against infection; they have high antimicrobial, antiviral, cytotoxic activity.</p><sec><title>Objective</title><p>Objective. To determine the values of fecal β-defensin-2 in children with cystic fibrosis and to reveal the dependence of its level on the exocrine function of the pancreas and the severity of the patient’s condition.</p><p>Characteristics of children and research methods. The study included 57 children with cystic fibrosis, the average age was 20.93 ± 2.9 months. Cystic fibrosis was diagnosed on the basis of an increase in immunoreactive trypsin, sweat chlorides by Cook’s method (&gt;60 meq / l). To assess the exocrine function of the pancreas the scientists determined the activity of fecal elastase. They evaluated the levels of fecal β-defensin-2 and calprotectin using a quantitative enzyme immunoassay.</p></sec><sec><title>Results</title><p>Results. The levels of fecal β-defensin-2 were increased (108.2 ± 11.3 ng / ml) in all children under examination. The researchers found no correlation between the levels of fecal β-defensin-2 and fecal elastase. The level of fecal calprotectin was significantly higher in the group of children with cystic fibrosis as compared to the control group. There was a significant correlation between the levels of fecal calprotectin and fecal β-defensin-2 (r=0.57; p &lt;0.05), however, no correlations were found between the levels of fecal β-defensin-2 and fecal elastase. The group of children with a severe course of the disease demonstrated an increase in the level of fecal β-defensin-2, fecal calprotectin significantly more frequent.</p></sec><sec><title>Conclusion</title><p>Conclusion. Children with cystic fibrosis demonstrated a significant increase in the concentration of β-defensin-2 as compared to the control group, which confirms the activation of the innate immune system of the intestinal mucosa. The researchers traced the relationship between high levels of fecal β-defensin-2 and the severity of the disease. The levels of fecal β-defensin-2 directly correlated with the concentration of fecal calprotectin and there was no correlation between the severity of pancreatic insufficiency and the concentration of fecal β-defensin-2.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>муковисцидоз</kwd><kwd>фекальный β-дефензин-2</kwd><kwd>фекальный кальпротектин</kwd><kwd>фекальная эластаза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>cystic fibrosis</kwd><kwd>fecal β-defensin-2</kwd><kwd>fecal calprotectin</kwd><kwd>fecal elastase</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках прикладного гранта при Министерстве здравоохранения Республики Узбекистан «Разработка дифференцированных методов лечения синдрома мальабсорбции у детей на основе оценки состояния проницаемости кишечного барьера». Шифр: ПЗ-20170925127</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of an applied grant under the Ministry of Health of the Republic of Uzbekistan “Development of differentiated methods of treatment of malabsorption syndrome in children based on an assessment of the state of intestinal barrier permeability.” Code: ПЗ-20170925127</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">Riordan J.R., Rommens J.M., Kerem B., Alon N., Rozmahel R., Grzelczak Z. et al. Identification of the cystic fibrosis gene: cloning and characterization of complementary DNA. Science 2010; 245: 1066–1073. DOI: 10.1126/science.2475911</mixed-citation><mixed-citation xml:lang="en">Riordan J.R., Rommens J.M., Kerem B., Alon N., Rozmahel R., Grzelczak Z. et al. 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