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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">10.20514/2226-6704-2022-12-3-203-211</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-1431</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>ОБЗОРНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEW ARTICLES</subject></subj-group></article-categories><title-group><article-title>ПАТОГЕНЕТИЧЕСКАЯ ВЗАИМОСВЯЗЬ ИММУНОЛОГИЧЕСКИХ НАРУШЕНИЙ ПРИ ХРОНИЧЕСКОМ ГЕНЕРАЛИЗОВАННОМ ПАРОДОНТИТЕ И РЕВМАТОИДНОМ АРТРИТЕ</article-title><trans-title-group xml:lang="en"><trans-title>Pathogenetic Relationship of Immunological Disorders in Chronic Generalized Periodontitis and Rheumatoid Arthritis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2010-3296</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Порядин</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Poryadin</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</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/0000-0003-1433-0337</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захватов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakhvatov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Николаевич Захватов</p><p>Саранск</p></bio><bio xml:lang="en"><p>Saransk</p></bio><email xlink:type="simple">zachvatan78@mail.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/0000-0003-0415-1132</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Паршина</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Parshina</surname><given-names>A. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саранск</p></bio><bio xml:lang="en"><p>Saransk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва», Медицинский институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Ogarev Mordovia State University, Medical institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>05</month><year>2022</year></pub-date><volume>12</volume><issue>3</issue><fpage>203</fpage><lpage>211</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Порядин Г.В., Захватов А.Н., Паршина А.Ю., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Порядин Г.В., Захватов А.Н., Паршина А.Ю.</copyright-holder><copyright-holder xml:lang="en">Poryadin G.V., Zakhvatov A.N., Parshina A.Y.</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/1431">https://www.medarhive.ru/jour/article/view/1431</self-uri><abstract><p>Патогенетическое единство механизмов прогрессирования хронического пародонтита и ревматоидного артрита подтверждается общими звеньями иммуновоспалительных реакций.Повреждение тканей пародонта опосредовано цитотоксическими эффектами вырабатываемых бактериями Porphyromonas gingivalis ферментов и их метаболитов. Нейтрофилы способствуют развитию пародонтита и участвуют в его прогрессировании, рекрутируя Т-хелперы 17 (Th17) и способствуя накоплению плазматических клеток в поражённых тканях. Активация иммунокомпетентных клеток способствует генерации активных форм кислорода, инициирующих свободнорадикальное окисление липидов, что в сочетании с невозможностью их нейтрализации вследствие сниженного антиоксидантного потенциала приводит к развитию оксидативного стресса. Связь между ревматоидным артритом и хроническим пародонтитом была в центре внимания многочисленных исследований, что обусловлено их общими патогенетическими механизмами. Хроническое воспаление, связанное как с ревматоидным артритом, так и с хроническим пародонтитом, сходно по преобладающему адаптивному иммунному фенотипу, дисбалансу между про — и противовоспалительными цитокинами. Значимым является вовлечение микроорганизма Porphyromonas gingivalis в генерацию антител к цитруллинированным пептидам у пациентов с ревматоидным артритом. Общность эпитопа (SE)-кодирующего аллель HLA-DRB1, связывающего цитруллинированные пептиды, может служить основанием для утверждения генетической предрасположенности и взаимопотенцирования данных заболеваний.Таким образом, имеющаяся взаимосвязь хронического пародонтита и ревматоидного артрита обосновывает необходимость проведения исследований, направленных на разработку новых методов в диагностике, лечении и профилактике рассматриваемых заболеваний с целью разобщения общих патогенетических механизмов воспалительных реакций и процессов остеорезорбции, приводящих к стойким функциональным и органическим расстройствам.</p></abstract><trans-abstract xml:lang="en"><p>The pathogenetic mechanisms of progression of chronic periodontitis accompanied with rheumatoid arthritis is confirmed by the common parts of immune-inflammatory reactions.Damage to periodontal tissues is indirectly made by cytotoxic effects of enzymes and their metabolites produced by Porphyromonas gingivalis bacteria. Neutrophils contribute to the progression of periodontitis and participate in its amplification by recruiting T-helper cells 17 and contributing to the accumulation of plasma cells in the affected tissues. Activation of immunocompetent cells promotes the generation of reactive oxygen species that initiate free radical oxidation of lipids, which, combined with the inability to neutralize them due to reduced antioxidant potential, leads to the development of oxidative stress.The connection between rheumatoid arthritis and chronic periodontitis has been the focus of numerous studies, due to their common pathogenetic mechanisms. Chronic inflammation associated with both rheumatoid arthritis and chronic periodontitis is similar in its prevailing adaptive immune phenotype, an imbalance between pro- and anti-inflammatory cytokines. The involvement of the Porphyromonas gingivalis microorganism in the generation of antibodies to citrullinated peptides in patients with rheumatoid arthritis is significant. The similarity of the epitope (SE) encoding the HLA-DRB1 allele, binding citrullinated peptides, can act as a basis for the approval of the genetic predisposition and mutual potential of these diseases. Thus, the proven connection between chronic periodontitis and rheumatoid polyarthropathies determines the significance of the analysis of the data obtained and substantiates the need for strategic research aimed at developing new methods in the diagnosis, treatment and prevention of the diseases for the purpose of breaking and separation of the common pathogenetic mechanisms of inflammatory reactions and osteoresorption processes leading to persistent functional and organic disorders.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пародонтит</kwd><kwd>ревматоидный артрит</kwd><kwd>цитокины</kwd><kwd>воспалительный ответ</kwd><kwd>остеорезорбция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>periodontitis</kwd><kwd>rheumatoid arthritis</kwd><kwd>cytokines</kwd><kwd>inflammatory response</kwd><kwd>osteoresorption</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">Tibúrcio-Machado CS, Michelon C, Zanatta FB, et al. 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