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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">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">10.25557/2073-7998.2024.10.30-37</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2557</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Распространенность вариантов гена эксцизионной репарации оснований ДНК  среди восточных хантов</article-title><trans-title-group xml:lang="en"><trans-title>The prevalence of DNA base excision repair gene variants among the Eastern Khants population</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>Макаров</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Макаров Сергей Вячеславович</p><p>115522, г. Москва,  ул. Москворечье, д. 1</p></bio><bio xml:lang="en"><p> Sergey V. Makarov</p><p>1, Moskvorechye st., Moscow, 115522</p></bio><email xlink:type="simple">ecolab@med-gen.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>Спицын</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Spitsyn</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> 115522, г. Москва,  ул. Москворечье, д. 1</p></bio><bio xml:lang="en"><p>1, Moskvorechye st., Moscow, 115522</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>Спицына</surname><given-names>Н. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Spitsyna</surname><given-names>N. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119334, г. Москва,  Ленинский просп., д. 32А</p></bio><bio xml:lang="en"><p>32A, Leninsky Prospekt, Moscow, 119334</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Медико-генетический научный центр имени академика Н.П. Бочкова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Centre for Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр физической антропологии, Институт этнологии и антропологии имени Н.Н. Миклухо-Маклая Российской акадекмии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Centre for Physical Anthropology, Miklukho-Maclay Institute of Ethnology and Anthropology Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2024</year></pub-date><volume>23</volume><issue>10</issue><fpage>30</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Макаров С.В., Спицын В.А., Спицына Н.Х., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Макаров С.В., Спицын В.А., Спицына Н.Х.</copyright-holder><copyright-holder xml:lang="en">Makarov S.V., Spitsyn V.A., Spitsyna N.K.</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/2557">https://www.medgen-journal.ru/jour/article/view/2557</self-uri><abstract><sec><title>Введение</title><p>Введение. Проблема сохранения здоровья населения северных регионов Евразии имеет приоритетную важность, особенно в отношении малочисленных коренных народов и в связи с интенсификацией антропогенного воздействия на окружающую среду. Жизнеспособность организма во многом зависит от наличия эффективных защитных средств против неблагоприятных факторов. У человека основным элементом одной из таких систем – эксцизионной репарации оснований ДНК – является 8-оксогуанин-ДНК-гликозилаза (OGG1), противостоящая неблагоприятным последствиям оксидативного стресса. В популяциях человека ген OGG1 имеет вариации в кодирующей последовательности, частоты встречаемости которых могут различаться в разных этнических группах. Замена аминокислотного остатка Ser326Cys снижает эффективность репарационной функции и носительство такой мутации, особенно в гомозиготном состоянии, чревато повышенным риском канцерогенеза и некоторыми другими неблагоприятными последствиями для здоровья.</p></sec><sec><title>Цель</title><p>Цель: установление частот встречаемости аллелей и генотипов полиморфизма rs1052133 гена OGG1, связанного с эксцизионной репарацией оснований, в популяции восточных хантов и сопоставление характера распределения с распространенностью в других популяциях Земного шара.</p></sec><sec><title>Методы</title><p>Методы. Выборка восточных хантов состояла из 103 коренных жителей Ханты-Мансийского автономного округа. Генотипирование по полиморфизму Ser326Cys в экзоне 7 гена OGG1 (rs1052133) проводилось методом ARMS-PCR-RFLP .</p></sec><sec><title>Результаты</title><p>Результаты. В изученной популяции частота генотипа Ser/Ser составила 47,6%, Ser/Cys – 36,9 % , Cys/Cys – 15,5 %. Частота аллеля OGG1*С (Ser) оказалась равной 0,66, а OGG1*G (Cys) достигла значения 0,34.</p></sec><sec><title>Вывод</title><p>Вывод. Результаты исследования представляют новую популяционно-генетическую информацию о распространенности вариантов гена OGG1 в популяции хантов. Частоты аллелей оказались близки к средним относительно мировой вариации.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The healthcare has the priority importance for the Northern Eurasia indigenous populations survival. The organism viability largely depends on the availability of effective protective systems against adverse factors. The one is 8-oxoguanine DNA glycosylase (OGG1) which help to resist against the adverse effects of oxidative stress.</p><p>The human OGG1 gene has coding sequence variations which may differ in different ethnic groups. The Ser326Cys mutation reduces the effectiveness of the DNA repair function and it causes an increased risk of carcinogenesis and some other adverse health consequences.</p></sec><sec><title>Objective</title><p>Objective: to estimate the prevalence OGG1 gene variants among the indigenous Khants population and to compare it with different ethnic groups worldwide.</p></sec><sec><title>Methods</title><p>Methods. The sample of Eastern Khants consisted of 103 indigenous inhabitants of the Khanty-Mansiysk Autonomous Okrug. OGG1 gene Ser326Cys polymorphism genotyping (rs1052133) was performed using the ARMS-PCR-RFLP method.</p></sec><sec><title>Results</title><p>Results. The frequency stated for Ser/Ser genotype was 47.6%, Ser/Cys = 36.9 % and Cys/Cys = 15.5% in the Khants population. Frequency of the OGG1 allele*C (Ser) was equal to 0.66, and OGG1*G (Cys) reached the value of 0.34. .</p></sec><sec><title>Conclusion</title><p>Conclusion. The results of the study provide new population-genetic information on the prevalence of variants of the OGG1 gene. The frequencies of the rs1052133 alleles in the Khants population were close to the global average values.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>эксцизионная репарация</kwd><kwd>восточные ханты</kwd><kwd>OGG1</kwd><kwd>rs1052133</kwd><kwd>Ser326Cys</kwd><kwd>полиморфизм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>BER</kwd><kwd>Khants population</kwd><kwd>OGG1</kwd><kwd>rs1052133</kwd><kwd>Ser326Cys</kwd><kwd>polymorphism</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Минобрнауки России.</funding-statement><funding-statement xml:lang="en">The study has been funded by the state assignment of the Ministry of Science and Higher Education of the Russian Federation</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">Kohno T., Shinmura K., Tosaka M. et al. 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