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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">Cytokines and inflammation</journal-id><journal-title-group><journal-title xml:lang="en">Cytokines and inflammation</journal-title><trans-title-group xml:lang="ru"><trans-title>Цитокины и воспаление</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1684-7849</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">629603</article-id><article-id pub-id-type="doi">10.17816/CI629603</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Prevalence of variants of the FAD-dependent amino oxidase gene in adolescents with internet addiction</article-title><trans-title-group xml:lang="ru"><trans-title>Распространенность вариантов гена FAD-зависимой аминоксидазы у подростков с интернет-зависимостью</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Afonicheva</surname><given-names>K. V.</given-names></name><name xml:lang="ru"><surname>Афоничева</surname><given-names>Ксения Васильевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kseniya.kopylova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Institute of Medical Problems of the North, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт медицинских проблем Севера – обособленное подразделение ФИЦ «Красноярский научный центр Сибирского отделения Российской академии наук»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-22" publication-format="electronic"><day>22</day><month>12</month><year>2023</year></pub-date><volume>20</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>9</fpage><lpage>12</lpage><history><date date-type="received" iso-8601-date="2024-03-29"><day>29</day><month>03</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-03-29"><day>29</day><month>03</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Afonicheva K.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Афоничева К.В.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Afonicheva K.V.</copyright-holder><copyright-holder xml:lang="ru">Афоничева К.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-04-11"/></permissions><self-uri xlink:href="https://cijournal.ru/1684-7849/article/view/629603">https://cijournal.ru/1684-7849/article/view/629603</self-uri><abstract xml:lang="en"><p>The aim of the research was to study the prevalence of rs1137070 MAOA polymorphism in Tuvan, Khakass and Russian adolescents, as well as the degree of their Internet addiction, assessed on the Chen scale. Materials and methods. The study included 559 adolescents of the Angara-Yenisei macroregion (Tuvinians, Khakas, Russians). The type of Internet addiction was assessed on the Chen scale, polymorphism was detected using real-time PCR. Results. It was revealed that the frequency of the TT rs1137070 genotype of the MAOA associated with low activity of the MAOA enzyme is significantly higher in Tuvan adolescents compared to Russians (31.1% vs. 21.2%, p=0.020). Pathological Internet addiction is more often observed among Khakas compared to Russian adolescents (26.4% vs. 15.5%, p=0.028). Thus, it is shown that the presence of a tendency to Internet addiction is potentially observed in carriers of the allele variant T rs1137070 MAOA, and Tuvans and Khakas, like other Asian populations, are more susceptible to the development of pathological dependencies, relative to Russians.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования</bold> – изучение распространенности полиморфизма rs1137070 MAOA у тувинских, хакасских и русских подростков, а также степени их интернет-зависимости, оцененной по шкале Чена.</p> <p><bold>Материалы и методы.</bold> В исследование были включены 559 подростков Ангаро-Енисейского макрорегиона (тувинцы, хакасы, русские). Тип интернет-зависимости оценивали по шкале Чена, полиморфизм детектировали с помощью ПЦР в режиме реального времени.</p> <p><bold>Результаты.</bold> Выявлено, что частота генотипа TT rs1137070 гена MAOA, ассоциированного с низкой активностью фермента MAOA, значимо выше у тувинских подростков по сравнению с русскими (31,1 против 21,2 %, p = 0,020). Патологическая интернет-зависимость чаще наблюдается среди хакасов по сравнению с русскими подростками (26,4 против 15,5 %, p = 0,028). Таким образом, показано, что наличие склонности к интернет-зависимости потенциально наблюдается у носителей аллельного варианта T rs1137070 MAOA, а тувинцы и хакасы, как и другие азиатские популяции, более подвержены развитию патологических зависимостей относительно русских.</p></trans-abstract><kwd-group xml:lang="en"><kwd>monoamine oxidase</kwd><kwd>polymorphism</kwd><kwd>Internet addiction</kwd><kwd>adolescents</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>моноаминооксидаза</kwd><kwd>полиморфизм</kwd><kwd>интернет-зависимость</kwd><kwd>подростки</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Barry D. T., Steinberg M. A., Wu R., Potenza M. N. Differences in characteristics of Asian American and white problem gamblers calling a gambling helpline // CNS Spectr. 2009. Т. 14. № 2. 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