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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">avk</journal-id><journal-title-group><journal-title xml:lang="ru">Архивъ внутренней медицины</journal-title><trans-title-group xml:lang="en"><trans-title>The Russian Archives of Internal Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-6704</issn><issn pub-type="epub">2411-6564</issn><publisher><publisher-name>“SINAPS” LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20514/2226-6704-2021-12-2-123-128</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-1405</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 ARTICLE</subject></subj-group></article-categories><title-group><article-title>Клиническая значимость полиморфизма гена цитохрома Р4502С19(681G/A) у жителей Забайкальского края при лечении кислото-зависимых заболеваний</article-title><trans-title-group xml:lang="en"><trans-title>Clinical Significance of Cytochrome P4502C19 (681G/A) Gene Polymorphism in Residents of the Trans-Baikal Territory in Treatment of Acid-Dependent Diseases</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4405-2975</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жилина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhilina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра терапии факультета повышения квалификации и профессиональной переподготовки</p><p>Чита</p></bio><bio xml:lang="en"><p>Chita </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/0000-0001-9498-9216</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ларева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lareva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра терапии факультета повышения квалификации и профессиональной переподготовки</p><p>Чита</p></bio><bio xml:lang="en"><p>Chita </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/0000-0002-8282-3056</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лузина</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Luzina</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра терапии факультета повышения квалификации и профессиональной переподготовки</p><p>Чита</p></bio><bio xml:lang="en"><p>Chita </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/0000-0003-2082-9839</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цвингер</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsvinger</surname><given-names>S. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра терапии факультета повышения квалификации и профессиональной переподготовки</p><p>Чита</p></bio><bio xml:lang="en"><p>Chita </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/0000-0002-2481-5189</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Морозова</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра терапии факультета повышения квалификации и профессиональной переподготовки</p><p>Чита</p></bio><bio xml:lang="en"><p>Chita </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Читинская государственная медицинская академия» МЗ РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chita State Medical Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2022</year></pub-date><volume>12</volume><issue>2</issue><fpage>123</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Жилина А.А., Ларева Н.В., Лузина Е.В., Цвингер С.М., Морозова Е.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Жилина А.А., Ларева Н.В., Лузина Е.В., Цвингер С.М., Морозова Е.И.</copyright-holder><copyright-holder xml:lang="en">Zhilina A.A., Lareva N.V., Luzina E.V., Tsvinger S.M., Morozova E.I.</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.medarhive.ru/jour/article/view/1405">https://www.medarhive.ru/jour/article/view/1405</self-uri><abstract><p>Цель исследования. Изучить полиморфизм CYP2C19(681A/G) среди населения Забайкальского края в сравнении с данными в других регионах мира и России. Материалы и методы. Проведено генетическое типирование CYP2C19(G681A) у 132 человек (81 женщина и 53 мужчины) проживающих на территории Забайкальского края, медиана возраста составила 47 (18; 72) лет. Отклонения распределений генотипов изученного полиморфного локуса от распределения Харди-Вайнберга оценено с использованием критерия хи-квадрат. Сравнительный анализ полученных данных проведен с помощью критерия Фишера. Различия считали значимыми при р &lt;0,05. Результаты. Распространенность CYP2C19(681G/G) составила 105 человек (79,6%), CYP2C19(681G/A) — 25 лиц (18,9%) и CYP2C19(681A/A) — 2 участника (1,5%). Аллель А гена CYP2C19 в 681 положении встречался в 14,2%. Аллель А реже встречается в популяции Забайкальского края, по сравнению с азиатами (Китай р &lt;0,001; Япония р=0,015) и не отличался в распространенности от коренных американцев, латиноамериканцев, афроамериканцев, жителей Московской, Воронежской, Иркутской областей и Саха-Якутии. CYP2C19(681A/A) чаще встречался в азиатской популяции, чем среди забайкальцев, р=0,003. Распространенность генотипа CYP2C19(681A/A) не отличалась между популяцией Забайкальского края афроамериканцами, европеоидами, населением Московской и Воронежской области. Заключение. Распространенность аллеля А полиморфного локуса 681G/A CYP2C19 в популяции Забайкальского края составила 14,2% и оказалась сопоставимой с европеоидами, но встречалась реже, чем у китайцев и в японской популяции. Распространенность генотипа CYP2C19(681A/A) составила 1,5%, что соответствовало мировым данным среди европеоидных популяций и встречалась реже, чем у азиатов. </p></abstract><trans-abstract xml:lang="en"><p>Aims. To study the CYP2C19(681A/G) polymorphism among the population of the Trans-Baikal Territory in comparison with data in other regions of Russia and the world. Materials and methods. The study involved 132 people (81 women and 53 men). The median age was 47 (18; 72) years. Genotyping of the 681G/A polymorphic locus of the CYP2C19 gene was performed by polymerase chain reaction. Results. The prevalence of CYP2C19(681G/G) was 105 people (79.6%), CYP2C19(681G/A) — 25 people (18.9%) and CYP2C19(681A/A) — 2 participants (1.5%). Allele A of the CYP2C19 gene in position 681 was found in 14.2%. Allele A is less common in the population of the Trans-Baikal Territory, compared with Asians (China, p &lt;0.001; Japan, p = 0.015) and did not differ in prevalence from Native Americans, Hispanics, African Americans, residents of Moscow, Voronezh, Irkutsk regions and Sakha-Yakutia. CYP2C19(681A/A) was more common in the Asian population than among the Transbaikalians, p = 0.003. The prevalence of the CYP2C19(681A/A) genotype did not differ between the population of the Trans-Baikal Territory, African Americans, Caucasians, and the population of the Moscow and Voronezh regions. Conclusions. The prevalence of the allele A in the population of the Trans-Baikal Territory was 14.2% and was comparable to the Caucasians, but less common than in the Asian population. The prevalence of the CYP2C19(681A/A) was 1.5%, which was consistent with world data among Caucasoid populations and was less common than in Asians.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиморфизм</kwd><kwd>цитохром Р450</kwd><kwd>аллель</kwd><kwd>CYP2C19(681A/G)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polymorphism</kwd><kwd>cytochrome P450</kwd><kwd>allele</kwd><kwd>CYP2C19(681A/G)</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Camilleri M. 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