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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">10.20514/2226-6704-2024-14-2-154-160</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-1754</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>Иммунологические маркеры у пациентов с гастроэнтерологическими проявлениями в различные периоды COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Immunological Markers in Patients with Gastroenterological Manifestations During Different Periods of COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9421-9545</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садретдинова</surname><given-names>Л. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadretdinova</surname><given-names>L. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лидия Данисовна Садретдинова</p><p>Уфа</p></bio><bio xml:lang="en"><p>Lidiia D. Sadretdinova</p><p>Ufa</p></bio><email xlink:type="simple">shuraleyka1@mail.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>Ганцева</surname><given-names>Х. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Gantseva</surname><given-names>H. H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа</p></bio><bio xml:lang="en"><p>Ufa</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>Иткулов</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Itkulov</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа</p></bio><bio xml:lang="en"><p>Ufa</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>Тюрин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyurin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа</p></bio><bio xml:lang="en"><p>Ufa</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Башкирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Educational Institution of Higher Education “Bashkir State Medical University” of the Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>06</day><month>04</month><year>2024</year></pub-date><volume>14</volume><issue>2</issue><fpage>154</fpage><lpage>160</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Садретдинова Л.Д., Ганцева Х.Х., Иткулов А.Ф., Тюрин А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Садретдинова Л.Д., Ганцева Х.Х., Иткулов А.Ф., Тюрин А.В.</copyright-holder><copyright-holder xml:lang="en">Sadretdinova L.D., Gantseva H.H., Itkulov A.F., Tyurin A.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.medarhive.ru/jour/article/view/1754">https://www.medarhive.ru/jour/article/view/1754</self-uri><abstract><p>Цель исследования - оценить уровни иммунологических маркеров у пациентов, перенесших COVID-19 и имеющих гастроэнтерологические симптомы в различные сроки.Материалы и методы. На I этапе проведено ретроспективное исследование 785 медицинских карт пациентов, находившихся на стационарном лечении с 05.2020 по 12.2020 г. с диагнозом «Новая коронавирусная инфекция COVID-19» среднего и тяжелого течения. Основной задачей была оценка клинических симптомов с фокусом на выявление гастроэнтерологических проявлений COVID-19. После выписки из стационара через 3, 6 и 12 месяцев было проведено телефонное анкетирование с применением специально раз работанного опросника сотрудниками кафедры внутренних болезней ФГБОУ ВО Башкирский государственный медицинский университет (БГМУ) МЗ РФ для выявления гастроэнтерологических симптомов, а также с использованием стандартного опросника оценки желудочно-кишечных симптомов GSRS (Gastrointestinal Symptom Rating Scale — Шкала оценки желудочно-кишечных симптомов) и Бристольской шкалы оценки кала. В опросе приняло участие 247 респондентов, после чего они были разделены на 3 группы по критерию наличия и длительности симптомов со стороны желудочно-кишечного тракта. 1 группа — пациенты, с сохраняющимися желудочно-кишечными симптомами в период от 4 до 12 недель (продолжающийся симптоматический COVID) — 30 человек; 2 группа — пациенты с длительностью желудочно-кишечных симптомов более 12 недель (постковидный синдром) — 75 человек. Контрольную группу (3 группа) составили 151 пациент, переболевший COVID-19 без развития постковидного синдрома. На II этапе в каждой группе пациентов были исследованы сывороточные концентрации иммунологических маркеров (интерлейкины (ИЛ) 4, 6, 8, 18; ревматоидный фактор, антитела к дезоксирибонуклеиновой кислоте (ДНК)).Результаты. Отмечается статистически значимое увеличение среднего возраста у пациентов 1 группы и 2 группы (р=0,02*10-4 и р=0,01*10-9), а также длительности госпитализации у 1-й группы пациентов в сравнении с группой контроля (р=0,04). Женщины преобладали как в 1-й (p=0,01), так и во 2-й группах (p=0,002). Сроки амбулаторного лечения до госпитализации составили в среднем 8,1 дней. В обеих группах пациентов отмечались статистически значимое повышение уровня ИЛ-18 (р=0,095; р=0,88*10-9), в группе 2 выявлено повышение уровня ревматоидного фактора (р=0,044) в сравнении с группой контроля. Выявлено также статистически значимое повышение уровней ИЛ-6 в обеих исследуемых группах относительно группы контроля (р=0,020; р=0,000017), при этом средние значения находились в пределах референтных интервалов.Выводы. Таким образом, пациенты, перенесшие COVID-19 среднетяжёлого и тяжелого течения, подвержены развитию постковидного синдрома, в том числе, с гастроэнтерологическими проявлениями. Впервые выявлен повышенный уровень ИЛ-18 у данной категории пациентов, что может служить как диагностическим биомаркером, так и потенциальной мишенью таргетной терапии.</p></abstract><trans-abstract xml:lang="en"><p>Materials and Methods. A retrospective study of 785 medical records of patients hospitalized between 05.2020 and 12.2020 with a diagnosis of moderate to severe new coronavirus COVID-19 infection was performed in phase I. The study was conducted. The primary objective was to evaluate clinical symptoms with a focus on detecting gastroenterologic manifestations of COVID-19. After discharge from the Covid hospital in 3, 6 and 12 months, a telephone questionnaire was conducted using a specially developed questionnaire by the staff of the Department of Internal Medicine of the FSBEU VO BSMU of the Ministry of Health of the Russian Federation to identify gastroenterological symptoms, as well as using the standard questionnaire for the assessment of gastrointestinal symptoms GSRS (Gastrointestinal Symptom Rating Scale) and the Bristol Stool Assessment Scale. 247 respondents took part in the survey, after which they were divided into 3 groups according to the criterion of presence and duration of gastrointestinal symptoms. Group 1 — patients with persisting gastrointestinal symptoms in the period from 4 to 12 weeks (ongoing symptomatic COVID) — 30 people; Group 2 — patients with duration of gastrointestinal symptoms more than 12 weeks (post-COVID syndrome) — 75 people. The control group (group 3) consisted of 151 patients who had survived COVID-19 without the development of postcoviral syndrome. At stage II, serum concentrations of immunologic markers (interleukins 4, 6, 8, 18; rheumatoid factor, antibodies to DNA,) were studied in each group of patients.Results. There was a statistically significant increase in the mean age in group 1 and group 2 patients (p=0.02*10-4 and p=0.01*10-9), as well as in the duration of hospitalization in group 1 patients compared to the control group (p=0.04). Women predominated in both groups 1 (p=0.01) and 2 (p=0.002). The time of outpatient treatment before hospitalization averaged 8.1 days. In both groups of patients there was a statistically significant increase in IL-18 level (p=0,095; p=0,88*10-9), in group 2 there was an increase in rheumatoid factor level (p=0,044) in comparison with the control group. A statistically significant increase in IL-6 levels was also revealed in both studied groups in comparison with the control group (p=0,020; p=0,000017), while the mean values were within the reference intervals.Conclusions. Thus, patients who have had moderate to severe COVID-19 are susceptible to the development of post-Covid syndrome, including gastroenterological manifestations. For the first time, an elevated level of IL-18 was detected in this category of patients, which can serve as both a diagnostic marker and a potential target for targeted therapy.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>постковидный синдром</kwd><kwd>желудочно-кишечный тракт</kwd><kwd>ИЛ-18</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>long-covid</kwd><kwd>gastrointestinal tract</kwd><kwd>IL-18</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">Venkatesan P. NICE guideline on long COVID. Lancet Respir Med. 2021; 9 (2): 129. doi: 10.1016/S2213-2600(21)00031-X.</mixed-citation><mixed-citation xml:lang="en">Venkatesan P. NICE guideline on long COVID. 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