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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">jofin</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал инфектологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal Infectology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-6732</issn><publisher><publisher-name>IPO “АIDSSPbR"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22625/2072-6732-2024-16-1-47-55</article-id><article-id custom-type="elpub" pub-id-type="custom">jofin-1607</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>Оригинальное исследование</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Research</subject></subj-group></article-categories><title-group><article-title>Прогностическая значимость полиморфизма генов TLR3 и TLR9 в оценке тяжести COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Prognostic significance of TLR3 and TLR9 gene polymorphism in assessing the severity of COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ащина</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ashchina</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ащина Людмила Андреевна – старший научный сотрудник лаборатории молекулярной и персонализированной медицины, к.б.н.,</p><p>Пенза</p></bio><bio xml:lang="en"><p>Penza</p></bio><email xlink:type="simple">pushino2008@yandex.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>Баранова</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranova</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баранова Надежда Ивановна – ведущий научный сотрудник лаборатории молекулярной и персонализированной медицины;</p><p>д.б.н., профессор,</p><p>Пенза</p></bio><bio xml:lang="en"><p>Penza</p></bio><email xlink:type="simple">baranova.nadezhda.2014@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>Болгова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolgova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Болгова Александра Игоревна – аспирант кафедры инфекционных болезней;</p><p>заведующая инфекционным отделение,</p><p>Пенза</p></bio><bio xml:lang="en"><p>Penza</p></bio><email xlink:type="simple">albolgova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левашова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Levashova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Левашова Ольга Анатольевна – заведующая лабораторией молекулярной и персонализированной медицины;</p><p>к.б.н., доцент,</p><p>Пенза</p></bio><bio xml:lang="en"><p>Penza</p></bio><email xlink:type="simple">olga.lewashowa@yandex.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>Лесина</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lesina</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лесина Ольга Николаевна – заведующая кафедрой инфекционных болезней;</p><p>к.м.н., доцент,</p><p>Пенза</p></bio><bio xml:lang="en"><p>Penza</p></bio><email xlink:type="simple">olesinasampe@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Пензенский институт усовершенствования врачей – филиал Российской медицинской&#13;
академии непрерывного профессионального образования</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Penza Institute for Further Training of Physicians – Branch Campus of the Russian Medical Academy of Continuous Professional Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Пензенский институт усовершенствования врачей – филиал Российской медицинской&#13;
академии непрерывного профессионального образования;&#13;
Пензенский областной клинический центр специализированных видов медицинской&#13;
помощи</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Penza Institute for Further Training of Physicians – Branch Campus of the Russian Medical Academy of Continuous Professional Education;&#13;
Penza Regional Clinical Center of Specialized Types of Medical Care</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>04</month><year>2024</year></pub-date><volume>16</volume><issue>1</issue><fpage>47</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ащина Л.А., Баранова Н.И., Болгова А.И., Левашова О.А., Лесина О.Н., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ащина Л.А., Баранова Н.И., Болгова А.И., Левашова О.А., Лесина О.Н.</copyright-holder><copyright-holder xml:lang="en">Ashchina L.A., Baranova N.I., Bolgova A.I., Levashova O.A., Lesina O.N.</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://journal.niidi.ru/jofin/article/view/1607">https://journal.niidi.ru/jofin/article/view/1607</self-uri><abstract><sec><title>Цель</title><p>Цель: изучение полиморфных вариантов генов TLR3 (rs3775291) и TLR9 (rs352140) у больных COVID-19 в зависимости от степени тяжести заболевания и их значимость для определения риска тяжелого течения COVID-19.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: генетический анализ полиморфизма генов TLR3 (rs3775291) и TLR9 (rs352140) проведен у 164 пациентов с COVID-19, которые были разделены по степени тяжести на 3 группы: 1-я – с легкой, 2-я – со среднетяжелой и 3-я – с тяжелой и крайне тяжелой степенями тяжести. Контрольную группу составили 40 здоровых доноров. Статистическую обработку полученных результатов проводили при помощи программ STATISTICA 12.0 (Stat Soft, USA). Для оценки различия групп по качественному признаку использован критерий χ2 с поправкой Yates, а при нарушении условий его применимости – двусторонний критерий Фишера (РF). Различие групп считали статистически значимым при р&lt;0,05. Силу ассоциаций оценивали в значениях показателя отношения шансов оdds ratio (OR) и 95% доверительному интервалу. Результаты: выявлено, что частота встречаемости генотипа СТ была достоверно выше, а частота встречаемости генотипа ТТ аллели rs3775291 гена TLR3 достоверно ниже у больных с манифестной формой COVID-19 по сравнению с контрольной группой. Анализ частоты встречаемости TLR9 (rs352140) у больных COVID-19 показал достоверно более высокие значения генотипа СТ и более низкие значения генотипа СС по сравнению со здоровыми людьми. Сравнительный анализ между группами госпитализированных больных в зависимости от степени тяжести выявил более высокую частоту встречаемости генотипа СТ и более низкую частоту встречаемости генотипа ТТ генов TLR3 (rs3775291) и TLR9 (rs352140) у больных с тяжелым и крайне тяжелым состоянием. Заключение: выявлены достоверные отличия по частоте встречаемости генотипов генов TLR3 (rs3775291) и TLR9 (rs352140) у больных с манифестной формой COVID-19 по сравнению со здоровыми людьми. Анализ&gt; ˂ 0,05. Силу ассоциаций оценивали в значениях показателя отношения шансов оdds ratio (OR) и 95% доверительному интервалу.</p></sec><sec><title>Результаты</title><p>Результаты: выявлено, что частота встречаемости генотипа СТ была достоверно выше, а частота встречаемости генотипа ТТ аллели rs3775291 гена TLR3 достоверно ниже у больных с манифестной формой COVID-19 по сравнению с контрольной группой. Анализ частоты встречаемости TLR9 (rs352140) у больных COVID-19 показал достоверно более высокие значения генотипа СТ и более низкие значения генотипа СС по сравнению со здоровыми людьми. Сравнительный анализ между группами госпитализированных больных в зависимости от степени тяжести выявил более высокую частоту встречаемости генотипа СТ и более низкую частоту встречаемости генотипа ТТ генов TLR3 (rs3775291) и TLR9 (rs352140) у больных с тяжелым и крайне тяжелым состоянием.</p></sec><sec><title>Заключение</title><p>Заключение: выявлены достоверные отличия по частоте встречаемости генотипов генов TLR3 (rs3775291) и TLR9 (rs352140) у больных с манифестной формой COVID-19 по сравнению со здоровыми людьми. Анализ вариантов нуклеотидной последовательности изучаемых генов у госпитализированных пациентов в зависимости от степени тяжести также показал достоверные различия в частоте встречаемости генотипов. Так, у больных в тяжелом и крайне тяжелом состоянии COVID-19 было выявлено достоверно значимое отличие в частоте встречаемости генотипов СТ и ТТ генов TLR3 (rs3775291) и TLR9 (rs352140) по сравнению с больными с легким и среднетяжелым течением, что может в дальнейшем иметь прогностическое значение в оценке тяжести заболевания.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective: to study polymorphic variants of TLR3 (rs3775291) and TLR9 (rs352140) genes in patients with COVID-19 depending on the severity of the disease and their significance for determining the risk of severe course of COVID-19.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods: genetic analysis of polymorphism of TLR3 (rs3775291) and TLR9 genes (rs352140) was performed in 164 patients with COVID-19, who were divided by degree of severity into three groups: Group 1 with mild, Group 2 with moderate and Group 3 with severe and extremely severe degrees of severity. The control group consisted of 40 healthy donors. Statistical processing of the obtained results was carried out using STATISTICA 12.0 programs (Stat Soft, USA). To assess the difference of groups by qualitative characteristics, the χ2 criterion with Yates correction was used, and in case of violation of its conditions, the χ2 criterion was applied. Yates correction, and if the conditions of its applicability were violated, the two-sided Fisher’s two-sided criterion (RF). The difference between the groups was considered statistically significant at р&lt;0,05. The strength of associations was evaluated in the values of the odds ratio index odds ratio (OR) and 95% confidence interval.&gt; ˂ 0,05. The strength of associations was evaluated in the values of the odds ratio index odds ratio (OR) and 95% confidence interval.</p></sec><sec><title>Results</title><p>Results: the frequency of the ST genotype was significantly higher and the frequency of the TT genotype of the rs3775291 allele of the TLR3 gene was significantly lower in patients with the manifest form of COVID-19 compared with the control group. Frequency analysis of TLR9 (rs352140) in COVID-19 patients showed significantly higher values of the ST genotype and lower values of the CC genotype compared to healthy individuals. Comparative analysis between groups of hospitalized patients depending on severity revealed higher frequency of ST genotype and lower frequency of TT genotype of TLR3 (rs3775291) and TLR9 (rs352140) genes in patients with severe and extremely severe condition.</p></sec><sec><title>Conclusion</title><p>Conclusion: reliable differences in the frequency of occurrence of genotypes of TLR3 (rs3775291) and TLR9 (rs352140) genes in patients with the manifest form of COVID-19 compared to healthy people were revealed. The analysis of nucleotide sequence variants of the studied genes in hospitalized patients depending on the degree of severity also showed significant differences in the frequency of genotypes. Thus, in patients with severe and extremely severe COVID-19, a significant difference in the frequency of occurrence of ST and TT genotypes of TLR3 (rs3775291) and TLR9 (rs352140) genes was revealed compared to patients with mild and moderate COVID-19, which may further have prognostic value in assessing the severity of the disease.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>тяжесть заболевания</kwd><kwd>Toll-like рецепторы</kwd><kwd>генотипы</kwd><kwd>генетический анализ</kwd><kwd>полиморфизм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>disease severity</kwd><kwd>Toll-like receptors</kwd><kwd>genotypes</kwd><kwd>genetic analysis</kwd><kwd>polymorphism</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">Zhu N, Zhang D, Wang W, et al. A novel coronavirus from patients with pneumonia in China, 2019. N. Engl. J. 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