<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2026.03.49-52</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3412</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Полиморфизм rs7096206 и rs7095891 в гене MBL2 в популяциях Крайнего Севера</article-title><trans-title-group xml:lang="en"><trans-title>Polymorphism (rs7096206 and rs7095891) in the MBL2 gene in populations of the Far North</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смольникова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smolnikova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>660022, Красноярск, ул. Партизана Железняка, д. 3Г</p></bio><bio xml:lang="en"><p>3G Partizana Zheleznyaka st., Krasnoyarsk, 660022</p></bio><email xlink:type="simple">smarinv@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Милейко</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Mileyko</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>660022, Красноярск, ул. Партизана Железняка, д. 3Г</p></bio><bio xml:lang="en"><p>3G Partizana Zheleznyaka st., Krasnoyarsk, 660022</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афоничева</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Afonicheva</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>660022, Красноярск, ул. Партизана Железняка, д. 3Г</p></bio><bio xml:lang="en"><p>3G Partizana Zheleznyaka st., Krasnoyarsk, 660022</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинских проблем Севера – обособленное подразделение ФИЦ КНЦ СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center «Krasnoyarsk Science Center» of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>07</day><month>04</month><year>2026</year></pub-date><volume>25</volume><issue>3</issue><fpage>49</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Смольникова М.В., Милейко А.Г., Афоничева К.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Смольникова М.В., Милейко А.Г., Афоничева К.В.</copyright-holder><copyright-holder xml:lang="en">Smolnikova M.V., Mileyko A.G., Afonicheva K.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://www.medgen-journal.ru/jour/article/view/3412">https://www.medgen-journal.ru/jour/article/view/3412</self-uri><abstract><sec><title>Введение</title><p>Введение. Заболевания бронхолегочной системы, включая бронхиальную астму (БА), являются значимой проблемой здоровья народов Крайнего Севера. Дефицит маннозосвязывающего лектина (MBL), участвующего в опсонизации респираторных патогенов, коррелирует с инфекциями, участвующими в развитии обострений БА. Однонуклеотидные полиморфизмы гена MBL2 являются одним из факторов риска развития мультифакториальных патологий.</p></sec><sec><title>Цель</title><p>Цель: провести сравнительный анализ частот генотипов и аллелей rs7096206 и rs7095891 гена MBL2 у ненцев и долган-нганасан по отношению к русским; оценить наличие ассоциации данных полиморфизмов с развитием БА (анализ «случай-контроль») у русских.</p></sec><sec><title>Методы</title><p>Методы. Изученные выборки включали: долган-нганасан (n = 104), ненцев (n = 261), русских больных БА (n = 400) и русских без астмы и хронических заболеваний (n = 229). Генетическое тестирование проводилось методом ПЦР в режиме реального времени. Результаты. Генотипы CC rs7096206 и CC rs7095891 статистически значимо чаще встречались у ненцев по сравнению с русскими (p&lt;0,001). У долган-нганасан наблюдалась тенденция к более высокой частоте генотипа CC rs7095891 (p=0,020). При анализе «случай-контроль» у русских статистически значимой ассоциации изученных полиморфизмов с БА не обнаружено (p&gt;0,05).</p></sec><sec><title>Выводы</title><p>Выводы. В выборке ненцев выявлена более высокая частота генотипов CC rs7096206 и CC rs7095891 гена MBL2, ассоциированных по литературным данным со снижением уровня MBL; сходная тенденция отмечена у долган-нганасан. Отсутствие ассоциации с БА у русских подчеркивает гетерогенность генетических факторов заболевания. Полученные данные обосновывают необходимость дальнейших исследований для оценки вклада данных генетических вариантов в структуру респираторной заболеваемости в популяциях Крайнего Севера.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Bronchopulmonary diseases, including bronchial asthma (BA), are a significant health concern among the indigenous populations of the Far North. Deficiency of mannose-binding lectin (MBL), which participates in the opsonization of respiratory pathogens, is associated with infections that contribute to BA exacerbations. Single nucleotide polymorphisms (SNPs) in the MBL2 gene are known risk factors for multifactorial pathologies.</p></sec><sec><title>Aim</title><p>Aim: 1) to perform a comparative analysis of the genotype and allele frequencies of MBL2 polymorphisms rs7096206 and rs7095891 in the Nenets and Dolgan-Nganasan populations relative to the Russian population; 2) to evaluate the association of these polymorphisms with bronchial asthma in the Russian population (case-control study).</p></sec><sec><title>Methods</title><p>Methods. The study samples included: newborns from the Nenets (n=261) and Dolgan-Nganasan (n=104) populations, Russian children with BA (n=400), and Russian children without asthma or chronic diseases (n=229). Genotyping was performed using real-time PCR. Results. The CC genotypes of rs7096206 and rs7095891 were significantly more frequent in the Nenets compared to Russians (p&lt;0.001). In Dolgan-Nganasans, a trend towards a higher frequency of the CC genotype (p=0.020) of rs7095891 was observed. The case-control analysis in the Russian population revealed no statistically significant association of either polymorphism with bronchial asthma (p&gt;0.05).</p></sec><sec><title>Conclusions</title><p>Conclusions. A higher frequency of MBL2 CC genotypes (rs7096206 and rs7095891), previously associated with reduced MBL levels, was identified in the Nenets population, with a similar trend in Dolgan-Nganasans. No association with BA was observed in Russians, highlighting the heterogeneity of genetic factors in this disease. These findings warrant further studies to evaluate the contribution of these genetic variants to respiratory morbidity in indigenous populations of the North.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бронхиальная астма</kwd><kwd>MBL2</kwd><kwd>популяции</kwd><kwd>Крайний Север</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bronchial asthma</kwd><kwd>MBL2</kwd><kwd>populations</kwd><kwd>Far North</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках Госзадания НИИ МПС № 124020100065-3 «Исследование молекулярно-клеточных механизмов регуляции иммунного ответа и взаимодействия иммунной системы с другими системами организма у жителей Восточной Сибири»</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of State Assignment No. 124020100065-3</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">Shen W., Zhang C., Wang C. et al. Association between polymorphisms in mannose-binding lectin 2 gene with pulmonary tuberculosis susceptibility. Hereditas. 2020;157:33.</mixed-citation><mixed-citation xml:lang="en">Shen W., Zhang C., Wang C. et al. Association between polymorphisms in mannose-binding lectin 2 gene with pulmonary tuberculosis susceptibility. Hereditas. 2020;157:33.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Li X., Yang H., Zhang C. et al. MBL2 rs7095891 G &gt; A polymorphism was associated with an increased risk of tuberculosis in the Chinese Uygur population. International Journal of Molecular Epidemiology and Genetics. 2018;9(5):64-70.</mixed-citation><mixed-citation xml:lang="en">Li X., Yang H., Zhang C. et al. MBL2 rs7095891 G &gt; A polymorphism was associated with an increased risk of tuberculosis in the Chinese Uygur population. International Journal of Molecular Epidemiology and Genetics. 2018;9(5):64-70.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Kolosov V.P., Chuchalin A.G., Avdeev S.N. et al. Chronic respiratory diseases: epidemiological monitoring and prevention. Bulletin of Physiology and Pathology of Respiration. 2020;(76):8-18.</mixed-citation><mixed-citation xml:lang="en">Kolosov V.P., Chuchalin A.G., Avdeev S.N. et al. Chronic respiratory diseases: epidemiological monitoring and prevention. Bulletin of Physiology and Pathology of Respiration. 2020;(76):8-18.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Queiroz M.A.F., Brito D.H.A., Lopes I.S. et al. Polymorphisms in the MBL2 gene are associated with the plasma levels of MBL and the cytokines IL-6 and TNF-α in severe COVID-19. Frontiers in Immunology. 2023;14:1151058.</mixed-citation><mixed-citation xml:lang="en">Queiroz M.A.F., Brito D.H.A., Lopes I.S. et al. Polymorphisms in the MBL2 gene are associated with the plasma levels of MBL and the cytokines IL-6 and TNF-α in severe COVID-19. Frontiers in Immunology. 2023;14:1151058.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Smolnikova M.V., Kasparov Ed.W., Malinchik M.A., Kopylova K.V. Genetic markers of children asthma: predisposition to disease course variants. Vavilovskii Zhurnal Genetiki i Selektsii=Vavilov Journal of Genetics and Breeding. 2023;27(4):393-400. DOI: 10.18699/VJGB-23-47</mixed-citation><mixed-citation xml:lang="en">Smolnikova M.V., Kasparov Ed.W., Malinchik M.A., Kopylova K.V. Genetic markers of children asthma: predisposition to disease course variants. Vavilovskii Zhurnal Genetiki i Selektsii=Vavilov Journal of Genetics and Breeding. 2023;27(4):393-400. DOI: 10.18699/VJGB-23-47</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
