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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">nogr</journal-id><journal-title-group><journal-title xml:lang="ru">Экспериментальная и клиническая гастроэнтерология</journal-title><trans-title-group xml:lang="en"><trans-title>Experimental and Clinical Gastroenterology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-8658</issn><publisher><publisher-name>«Global Media Technologies»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31146/1682-8658-ecg-212-4-12-18</article-id><article-id custom-type="elpub" pub-id-type="custom">nogr-2357</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>КЛИНИЧЕСКАЯ ГАСТРОЭНТЕРОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL GASTROENTEROLOGY</subject></subj-group></article-categories><title-group><article-title>Ранняя диагностика аутоиммунного гастрита</article-title><trans-title-group xml:lang="en"><trans-title>Early diagnosis of autoimmune gastritis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4516-6859</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ожиганова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ozhiganova</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">natalya.safyanova@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/0000-0002-2610-1323</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белковец</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belkovets</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0077-3823</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кручинина</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruchinina</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт терапии и профилактической медицины - филиал Федерального государственного бюджетного научного учреждения «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Internal and Preventive Medicine- branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт терапии и профилактической медицины - филиал Федерального государственного бюджетного научного учреждения «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»; Федеральное государственное бюджетное образовательное учреждение высшего образования «Новосибирский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Internal and Preventive Medicine- branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences; Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>12</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ожиганова Н.В., Белковец А.В., Кручинина М.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ожиганова Н.В., Белковец А.В., Кручинина М.В.</copyright-holder><copyright-holder xml:lang="en">Ozhiganova N.V., Belkovets A.V., Kruchinina M.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.nogr.org/jour/article/view/2357">https://www.nogr.org/jour/article/view/2357</self-uri><abstract><p>Ранняя диагностика аутоиммунного гастрита (АИГ) довольно сложная задача в повседневной практике врача-интерниста. Так как заболевание длительно протекает бессимптомно, то зачастую, диагностируется уже при выраженной атрофии с потерей большого количества желез желудка и развитием тяжелой пернициозной анемии, а порой и на этапе формирования онкологических заболеваний. Морфологические и эндоскопические изменения появляются не сразу и на ранних стадиях не являются специфичными для АИГ. В связи с этим, ключевую роль играет неинвазивная диагностика. В большинстве случаев обследование на АИГ проводится у пациентов с дефицитами витамина В12 и железа. Однако до развития недостатка этих микроэлементов могут пройти десятки лет от начала заболевания. Использование неинвазивной методики с определением таких биомаркёров как пепсиноген I, II (ПГI, ПГ II), их соотношение, гастрин-17, а также инфекции Helicobacter pylori (H. pylori), включая цитотоксический (CagA+) штамм, является эффективным для выявления доклинических стадий АИГ. Определение титра антител к париетальным клеткам желудка (АПК) и внутреннему фактору Касла позволяет подтвердить иммунную природу гастрита, но последние исследования показали, что эти маркеры могут быть отрицательными у части пациентов. Статья актуализирует проблему ранней диагностики АИГ и демонстрирует важность практического применения существующих на сегодняшний день неинвазивных методик диагностики заболеваний желудка.</p></abstract><trans-abstract xml:lang="en"><p>Early diagnosis of autoimmune gastritis (AIG) is quite difficult in a physician’s daily practice. Since the disease is asymptomatic for a long time, it is often diagnosed already with severe atrophy with the loss of a large number of gastric glands and potentially significant pernicious anemia, and sometimes with the onset of cancer. Morphological and endoscopic changes do not occur immediately and are not specific in patients with AIG. In this case, non-invasive diagnostics play a key role. The diagnostics of AIG are often done in patients with vitamin B12 and iron deficiency. However, the development of these deficiencies can take a long time. The non-invasive technique with the determination of such biomarkers as pepsinogen I, II (PGI, PG II), their ratio, gastrin-17, as well as Helicobacter pylori (H. pylori) infection, including a cytotoxic (CagA +) strain, is used to exclude preclinical stages of AIG. The titer determination of anti-parietal cell antibodies and the anti-intrinsic factor antibodies allows identifying the immune nature of gastritis. But recent studies show that these markers can be negative in some patients. This article actualizes the problem of early diagnosis of AIG and demonstrates the importance of practical application of currently existing non-invasive methods for the diagnosis of stomach diseases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>аутоиммунный гастрит</kwd><kwd>Helicobacter pylori</kwd><kwd>неинвазивная диагностика</kwd><kwd>анемия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>autoimmune gastritis</kwd><kwd>Helicobacter pylori</kwd><kwd>non-invasive diagnostics</kwd><kwd>anemia</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">Notsu T, Adachi K, Mishiro T, et al. Prevalence of Autoimmune Gastritis in Individuals Undergoing Medical Checkups in Japan.Intern Med. 2019;58(13):1817-1823. doi: 10.2169/internalmedicine.2292-18.</mixed-citation><mixed-citation xml:lang="en">Notsu T, Adachi K, Mishiro T, et al. 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