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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-SPO-3236</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-3236</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 ARTICLES</subject></subj-group></article-categories><title-group><article-title>Исследование субпопуляционного состава лейкоцитов крови при оценке тяжести течения COVID-19 и в условиях цитокинового шторма</article-title><trans-title-group xml:lang="en"><trans-title>Subpopulation profile of blood leukocytes in assessing severity of COVID-19 and in conditions associated with cytokine storm</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>Путков</surname><given-names>С. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Putkov</surname><given-names>S. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Путков С.Б. – врач клинической лабораторной диагностики, заведующий отделением клинических инфекционно-иммунологических исследований Центра клинической лабораторной диагностики </p><p>105094, Москва, Госпитальная площадь, 3.</p></bio><bio xml:lang="en"><p>Putkov S.B., Doctor of Clinical Laboratory Diagnostics, Head, Department of Clinical Infectious and Immunological Research, Center for Clinical Laboratory Diagnostics </p><p>3 Gospitalnaya Square Moscow 105094</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>Давыдова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Davydova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давыдова Н.В. – врач клинической лабораторной диагностики отделения клинических инфекционно-иммунологических исследований Центра клинической лабораторной диагностики </p><p>105094, Москва, Госпитальная площадь, 3.</p></bio><bio xml:lang="en"><p>Davydova N.V., Doctor of Clinical Laboratory Diagnostics, Department of Clinical Infectious and Immunological Research, Center for Clinical Laboratory Diagnostics </p><p>3 Gospitalnaya Square Moscow 105094</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>Казаков</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakov</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казаков С.П. – д.м.н., доцент, врач клинической лабораторной диагностики, начальник Центра клинической лабораторной диагностики – главный лаборант; профессор </p><p>105094, Москва, Госпитальная площадь, 3.</p></bio><bio xml:lang="en"><p>Kazakov S.P., PhD, MD (Medicine), Associate Professor, Doctor of Clinical Laboratory Diagnostics, Head, Clinical Laboratory Center; Professor </p><p>3 Gospitalnaya Square Moscow 105094</p></bio><email xlink:type="simple">gvkg.ckld@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Главный военный клинический госпиталь имени академика Н.Н. Бурденко»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Main Military N. Burdenko Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Главный военный клинический госпиталь имени академика Н.Н. Бурденко»;&#13;
ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий Федерального медико-биологического агентства России»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Main Military N. Burdenko Clinical Hospital;&#13;
Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Federal Medical and Biological Agency</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>10</month><year>2025</year></pub-date><volume>27</volume><issue>5</issue><fpage>1063</fpage><lpage>1076</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Путков С.Б., Давыдова Н.В., Казаков С.П., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Путков С.Б., Давыдова Н.В., Казаков С.П.</copyright-holder><copyright-holder xml:lang="en">Putkov S.B., Davydova N.V., Kazakov S.P.</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.mimmun.ru/mimmun/article/view/3236">https://www.mimmun.ru/mimmun/article/view/3236</self-uri><abstract><p>Сегодня клинические проявления у больных COVID-19 варьируют от легкого до тяжелого течения, особенно в группах пациентов, подверженных хроническим заболеваниям. Выбор наиболее информативных показателей, обеспечивающих прогноз возможного исхода или тяжелого течения заболевания у пациентов с COVID-19, необходим уже на раннем этапе для определения эффективной тактики лечения. Наиболее ранними предикторами ухудшения состояния больных при COVID-19 являются повышенные значения интерлейкина-6, интерлейкина-10, С-реактивного белка, прокальцитонина и других показателей врожденной иммунной системы. Одной из задач настоящего исследования было определение наиболее информативных показателей общеклинического анализа крови и основных субпопуляций лимфоцитов у пациентов с COVID-19, позволяющих помочь в интерпретации степеней тяжести заболевания и развития цитокинового шторма наряду с клиническими проявлениями и функциональными методами диагностики. Нами проведено ретроспективное когортное исследование периферической крови у 65 больных, из которых было 57 мужчин и 8 женщин, возраст пациентов варьировал от 32 до 82 лет, средний возраст составил 48,6 года. После исследования общего анализа крови в 65 образцах выполнен цитометрический анализ с использованием системы проточной цитофлюориметрии серии Cytomics™ FC 500 фирмы Beckman Coulter (США), моноклональных антител СD45-ECD, CD3-FITC, CD4-PC7, CD8-PE, CD19-PC-5, CD16+56-PE фирмы Beckman Coulter (США). Статистическая обработка результатов исследования проведена в программе IBM SPSS Statistics 26.0 (IBM, США). У обследованных нами пациентов с COVID-19 при первичном обращении за медицинской помощью отмечается абсолютная лимфопения на фоне нейтрофилеза, что выражается в повышении значений нейтрофильно-лейкоцитарного и лейкоцитарноТ-лимфоцитарного индексов. Данные индексы с достаточно высокой информативностью могут использоваться при прогнозировании рисков заболевания. Определение наиболее достоверных показателей клеточного звена иммунитета, таких как CD3+, CD3+CD4+, CD3+CD8+, CD3- CD16+CD56+ лимфоциты, дополнительно к клиническому анализу крови, может дать оценку особенностям иммунного реагирования организма на инфицирование SARS-СoV-2, помочь спрогнозировать тяжесть течения заболевания, а также принять решение для изменения тактики лечения при необходимости.</p></abstract><trans-abstract xml:lang="en"><p>Currently, the clinical manifestations of COVID-19 patients are classified from mild to severe, especially in groups of patients susceptible to chronic diseases. Selection of the most informative prognostic indices of possible outcome or severe course of the disease in COVID-19 patients is required at early stage in order to determine effective treatment strategy. The earliest predictors of clinical deterioration in COVID-19 are elevated levels of interleukin-6, interleukin-10, C-reactive protein, procalcitonin, and other indices of innate immune system. The objectives of this study included a search for the most informative parameters of general clinical blood analysis and the main lymphocyte subpopulations in patients with COVID-19, which may be helpful in interpreting the severity of the disease and development of a cytokine storm, along with clinical manifestations and functional diagnostic methods. We conducted a retrospective cohort study of peripheral blood in 65 patients including 57 males and 8 females. The age of the patients ranged from 32 to 82 years (an average of 48.6 years old). After examining the total blood counts in 65 samples, cytometric analysis was performed using the Cytomics™ FC 500 series flow cytofluorometry system (Beckman Coulter, USA), with CD45-ECD, CD3-FITC, CD4-PC7, CD8-PE, CD19-PC-5, CD16+56-PE monoclonal antibodies from Beckman Coulter (USA). Statistical processing of the research results was carried out in the IBM SPSS Statistics 26.0 program (IBM, USA). In the group of patients with COVID-19, absolute lymphopenia is noted along with neutrophilia at the initial medical treatment, resulting into increased values of the neutrophil-leukocyte and leukocyte-T-lymphocyte indices. These indexes are quite informative and can be used in predicting disease risks. Determination of the most reliable indices of cellular immunity, such as CD3+, CD3+CD4+, CD3+CD8+, CD3- CD16+CD56+ lymphocytes, in addition to a clinical blood test, may assess the features of the patients’ immune response to SARS-CoV-2 infection, helping to predict the disease severity, and make a decision to change the treatment strategy if required.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лимфопения</kwd><kwd>субпопуляции лимфоцитов</kwd><kwd>показатели клеточного звена иммунитета</kwd><kwd>цитокиновый шторм</kwd><kwd>прогноз</kwd><kwd>заболевание COVID-19</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lymphopenia</kwd><kwd>lymphocyte subpopulations</kwd><kwd>cellular immunity</kwd><kwd>cytokine storm</kwd><kwd>prognostic indexes</kwd><kwd>COVID-19 disease</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">Давыдова Н.В., Путков С.Б., Решетняк Д.В., Казаков С.П. 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