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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">Annals of the Russian academy of medical sciences</journal-id><journal-title-group><journal-title xml:lang="en">Annals of the Russian academy of medical sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российской академии медицинских наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-6047</issn><issn publication-format="electronic">2414-3545</issn><publisher><publisher-name xml:lang="en">"Paediatrician" Publishers LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">2262</article-id><article-id pub-id-type="doi">10.15690/vramn2262</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>STOMATOLOGY: CURRENT ISSUES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>АКТУАЛЬНЫЕ ВОПРОСЫ СТОМАТОЛОГИИ</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">The First Domestic Experience of Detecting the Association of Anaerobic Bacteria <italic>Filifactor Alocis</italic> and <italic>Porphyromonas Gingivalis</italic> by Molecular Biological Methods in Periodontal Diseases and Comorbid Pathology (Comparative Research)</article-title><trans-title-group xml:lang="ru"><trans-title>Первый отечественный опыт выявления ассоциации анаэробных бактерий <italic>Filifactor alocis</italic> и <italic>Porphyromonas gingivalis</italic> молекулярно-биологическими методами при заболеваниях пародонта и коморбидной патологии (сравнительное исследование)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0059-4980</contrib-id><contrib-id contrib-id-type="spin">1452-1387</contrib-id><name-alternatives><name xml:lang="en"><surname>Yanushevich</surname><given-names>Oleg O.</given-names></name><name xml:lang="ru"><surname>Янушевич</surname><given-names>Олег Олегович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor, Academician of the RAS</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, академик РАН</p></bio><email>rectorat.mgmsu@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3311-0367</contrib-id><contrib-id contrib-id-type="spin">8180-4941</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsarev</surname><given-names>Viktor N.</given-names></name><name xml:lang="ru"><surname>Царев</surname><given-names>Виктор Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>nikola777@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7854-3262</contrib-id><contrib-id contrib-id-type="spin">9150-4102</contrib-id><name-alternatives><name xml:lang="en"><surname>Nikolaeva</surname><given-names>Elena N.</given-names></name><name xml:lang="ru"><surname>Николаева</surname><given-names>Елена Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor, Chief Scientific Officer</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, главный научный сотрудник</p></bio><email>el.nikolaeva@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8194-2419</contrib-id><contrib-id contrib-id-type="spin">8025-8611</contrib-id><name-alternatives><name xml:lang="en"><surname>Balmasova</surname><given-names>Irina P.</given-names></name><name xml:lang="ru"><surname>Балмасова</surname><given-names>Ирина Петровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>iri.balm@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1737-0887</contrib-id><contrib-id contrib-id-type="spin">3002-7360</contrib-id><name-alternatives><name xml:lang="en"><surname>Ippolitov</surname><given-names>Evgeny V.</given-names></name><name xml:lang="ru"><surname>Ипполитов</surname><given-names>Евгений Валерьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>ippo@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9571-0520</contrib-id><contrib-id contrib-id-type="spin">2028-8404</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsareva</surname><given-names>Tatiana V.</given-names></name><name xml:lang="ru"><surname>Царева</surname><given-names>Татьяна Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Assistant Professor</p></bio><bio xml:lang="ru"><p>к.м.н., доцент</p></bio><email>tancha-leo84@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6785-0016</contrib-id><contrib-id contrib-id-type="spin">1937-4996</contrib-id><name-alternatives><name xml:lang="en"><surname>Podporin</surname><given-names>Mikhail S.</given-names></name><name xml:lang="ru"><surname>Подпорин</surname><given-names>Михаил Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Research Associate</p></bio><bio xml:lang="ru"><p>к.м.н., научный сотрудник</p></bio><email>podporin.mikhail@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="spin">3930-5307</contrib-id><name-alternatives><name xml:lang="en"><surname>Ponomareva</surname><given-names>Anna G.</given-names></name><name xml:lang="ru"><surname>Пономарева</surname><given-names>Анна Геннадиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>lara12346@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A.I. Yevdokimov Moscow State University of Medicine and Dentistry</institution></aff><aff><institution xml:lang="ru">Московский государственный медико-стоматологический университет имени А.И. Евдокимова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-02-04" publication-format="electronic"><day>04</day><month>02</month><year>2023</year></pub-date><volume>77</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>437</fpage><lpage>446</lpage><history><date date-type="received" iso-8601-date="2022-10-31"><day>31</day><month>10</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-12-21"><day>21</day><month>12</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, "Paediatrician" Publishers LLC</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Издательство "Педиатръ"</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">"Paediatrician" Publishers LLC</copyright-holder><copyright-holder xml:lang="ru">Издательство "Педиатръ"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2024-02-04"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://vestnikramn.spr-journal.ru/jour/about/submissions</ali:license_ref></license></permissions><self-uri xlink:href="https://vestnikramn.spr-journal.ru/jour/article/view/2262">https://vestnikramn.spr-journal.ru/jour/article/view/2262</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> The widespread global increase in the incidence of periodontitis and the role of its pathogens in comorbid pathology and systemic complications determines the need to create new molecular genetic systems for diagnosis and the use of metagenomic and bioinformatic analysis methods.</p> <p><bold>Aims</bold> — to use methods of microbiological genodiagnostics and bioinformatic analysis to prove the etiological role of the key periodontal pathogens Filifactor alocis and Porphyromonas gingivalis, characterizing the degree of progression of chronic periodontitis, and its association with a systemic pathological process (type 2 diabetes mellitus).</p> <p><bold>Methods.</bold> A comparative assessment of the identification of key periodontopathogenic species P. gingivalis and F. alocis in different forms of periodontitis according to the degree of progression (84 people) using a previously patented system of primers in patients in 4 comparison groups, differing in the degree of progression. 16S sequencing and bioinformatic analysis were performed in 69 patients (including 38 with type 2 diabetes mellitus). All nondiabetic patients were required to have HbA1c level 6.0%.</p> <p><bold>Results.</bold> A higher frequency of detection of periodontal pathogens was established in patients of group C with a pronounced tendency to progression (93 and 100% respectively). The simultaneous presence of P. gingivalis and F. alocis in chronic periodontitis of grade B was noted in 20% of cases, and in grade C — in 93% of cases.</p> <p><bold>Conclusions.</bold> The proposed method can be used to effectively determine the degree of periodontitis progression based on the determination of oligonucleotide primers of P. gingivalis and F. alocis, including comorbid pathology — periodontitis and type 2 diabetes mellitus.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Повсеместное глобальное увеличение заболеваемости пародонтитом и роль его возбудителей в коморбидной патологии и системных осложнениях определяют необходимость создания новых молекулярно-генетических систем для диагностики и использования методов метагеномного и биоинформационного анализа.</p> <p><bold>Цель исследования</bold> — применение методов микробиологической генодиагностики и биоинформационного анализа для доказательства этиологической и прогностической роли ключевых пародонтопатогенов Filifactor alocis и Porphyromonas gingivalis, характеризующих степень прогрессирования хронического пародонтита и его ассоциации с системным патологическим процессом (сахарным диабетом 2 типа).</p> <p><bold>Методы. </bold>Сравнительная оценка выявления ключевых пародонтопатогенных видов P. gingivalis и F. alocis у пациентов с хроническим пародонтитом в возрасте от 35 до 65 лет (84 человека) с использованием ранее патентованной системы олигонуклеотидных праймеров у пациентов в четырех группах сравнения, различающихся по степени прогрессирования. У 69 пациентов (в том числе у 38 — с сахарным диабетом 2 типа, гликированный гемоглобин — более 6,0%) проводили 16S секвенирование и биоинформационный анализ.</p> <p><bold>Результаты.</bold> Установлена более высокая частота выявления пародонтопатогенов у пациентов с выраженной тенденцией к прогрессированию (93 и 100% соответственно). Одновременное наличие P. gingivalis и F. alocis при хроническом пародонтите степени В было отмечено в 20% случаев, а у степени С — в 93% случаев. Однако у здоровых одновременное наличие обоих пародонтопатогенов не отмечено.</p> <p><bold>Заключение.</bold> Предложенный метод может быть использован для эффективного определения степени прогрессирования пародонтита на основе определения олигонуклеотидных праймеров P. gingivalis и F. alocis, включая коморбиднную патологию — пародонтит и сахарный диабет 2 типа.</p></trans-abstract><kwd-group xml:lang="en"><kwd>periodontitis</kwd><kwd>type 2 diabetes mellitus</kwd><kwd>PCR</kwd><kwd>P. gingivalis</kwd><kwd>F. alocis</kwd><kwd>16S sequencing</kwd><kwd>bioinformatic analysis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пародонтит</kwd><kwd>сахарный диабет 2 типа</kwd><kwd>ПЦР</kwd><kwd>P. gingivalis</kwd><kwd>F. alocis</kwd><kwd>16S секвенирование</kwd><kwd>биоинформационный анализ</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>056-00035-21-00</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Tonetti MS, Jepsen S, Jin L, et al. 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