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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">mes</journal-id><journal-title-group><journal-title xml:lang="ru">Экстремальная биомедицина</journal-title><trans-title-group xml:lang="en"><trans-title>Extreme Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3033-8964</issn><issn pub-type="epub">3033-8972</issn><publisher><publisher-name>Centre for Strategic Planning of the Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47183/mes.2024.005</article-id><article-id custom-type="elpub" pub-id-type="custom">mes-98</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>Влияние фоновой лимфопении на реактивность показателей неспецифического иммунитета в ответ на общее холодовое воздействие</article-title><trans-title-group xml:lang="en"><trans-title>The impact of background lymphopenia on the reactivity of nonspecific immunity in response to total body cold exposure</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>Патракеева</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Patrakeeva</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вероника Павловна Патракеева</p><p>пр. Никольской, д. 20, г. Архангельск, 163020</p></bio><bio xml:lang="en"><p>Veronika P. Patrakeeva</p><p>Nikolsky prospect, 20, Arkhangelsk, 163020</p></bio><email xlink:type="simple">patrakeewa.veronika@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>Контиевская</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kontievskaya</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Архангельск</p></bio><bio xml:lang="en"><p>Arkhangelsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный исследовательский центр комплексного изучения Арктики имени Н. П. Лаверова Уральского отделения Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. Laverov Federal Center for Integrated Arctic Research, Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>10</month><year>2024</year></pub-date><volume>26</volume><issue>1</issue><fpage>57</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Патракеева В.П., Контиевская Е.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Патракеева В.П., Контиевская Е.В.</copyright-holder><copyright-holder xml:lang="en">Patrakeeva V.P., Kontievskaya E.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.extrememedicine.ru/jour/article/view/98">https://www.extrememedicine.ru/jour/article/view/98</self-uri><abstract><p>Лимфопения — состояние, при котором концентрация лимфоцитов ниже физиологической нормы. Сочетание лимфопении и длительного воздействия низких температур приводит к сокращению резервов адаптационных ресурсов, повышая риск формирования хронических воспалительных процессов и вторичных экологически обусловленных иммунодефицитов. Цель исследования — сравнить особенности реактивности иммунных показателей в ответ на общее охлаждение в зависимости от фонового уровня лимфоцитов. Проведено изучение изменения гематологических и иммунологических показателей у 203 человек до и сразу после общего охлаждения. У обследованных проводили измерение температуры лба и тыльной стороны ладони, артериального давления и частоты сердечных сокращений, лейкограмму и гемограмму. Методом иммуноферментного анализа определено содержание ферритина, лактоферрина, трансферрина, интерлейкина-6, интерлейкина-1β и TNFα, эритропоэтина, ирисина. Уровень апоптоза и некроза лимфоцитов определяли методом проточной цитометрии двойным окрашиванием AnV/PI. Вне зависимости от фонового уровня лимфоцитов в периферической крови регистрировали однотипные реакции на общее кратковременное охлаждение со стороны сердечно-сосудистой системы, уровня ирисина и ферритина, что свидетельствует о включении механизмов терморегуляции и сохранении теплового гомеостаза. Лимфопения ассоциируется со снижением активности неспецифической защиты, в ответ на холодовое воздействие не происходит изменения уровня и функциональной активности циркулирующих нейтрофильных гранулоцитов, что повышает риск хронизации инфекционных процессов в данной группе.</p></abstract><trans-abstract xml:lang="en"><p>Lymphopenia is a condition in which there are lower than normal counts of lymphocytes in the blood. Combination of lymphopenia and prolonged exposure to low temperatures leads to a reduction of adaptive resources, increasing risks of chronic inflammatory processes and secondary environmentally induced immunodeficiencies. The aim of the study was to compare characteristics of immune reactivity in response to cold exposure depending on background level of lymphocytes. Changes in hematologic and immunologic parameters in 203 participants before and immediately after short-term cold exposure were studied. Measurements included skin temperature (forehead, backside of palm), blood pressure, heart rate, leukogram, and hemogram. Levels of ferritin, lactoferrin, transferrin, interleukin-6, interleukin-1β, TNFα, erythropoietin, and irisin were determined using the enzyme immunoassay method. Apoptosis and necrosis of lymphocytes were assessed by flow cytometry analysis using AnV/PI double staining assay. Regardless of the background level of lymphocytes in peripheral blood, same-type responses to short-term cold exposure were observed in cardiovascular system as well as in irisin and ferritin levels, providing an evidence of activating thermoregulation and thermal homeostasis mechanisms. Lymphopenia is associated with a decrease in activity of nonspecific defense - in response to cold exposure there were no changes in level and functional activity of circulating neutrophil granulocytes that can increase the risks of chronicization of infectious processes in this group.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лимфопения</kwd><kwd>адаптация</kwd><kwd>человек</kwd><kwd>NLR</kwd><kwd>ферритин</kwd><kwd>трансферрин</kwd><kwd>лактоферрин</kwd><kwd>холод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lymphopenia</kwd><kwd>adaptation</kwd><kwd>human</kwd><kwd>NLR</kwd><kwd>ferritin</kwd><kwd>transferrin</kwd><kwd>lactoferrin</kwd><kwd>cold exposure</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена в рамках программы фундаментальных научных исследований по теме лаборатории экологической иммунологии  Института физиологии природных адаптаций ФГБУН ФИЦКИА УрО РАН № гос. регистрации 122011300377-5.</funding-statement><funding-statement xml:lang="en">the study was performed within the Program of Fundamental Scientific Research on the topic of the environmental immunology laboratory, Institute  of Physiology of Natural Adaptations, N. Laverov Federal Center for Integrated Arctic Research, Ural Branch of the Russian Academy of Sciences (project  № 122011300377-5).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Гармаева Д. К., Белолюбская Д. С., Федорова А. И., Аржакова Л. И., Афанасьева О. Г. Влияние холодового стресса на морфофункциональные показатели тимуса в эксперименте. Морфологические ведомости. 2019; 27 (2): 19–23. DOI: 10.20340/mv-mn.19(27).02.19-23.</mixed-citation><mixed-citation xml:lang="en">Garmaeva DK, Belolyubskaya DS, Fyodorova AI, Arzhakova LI, Afanasieva OG. The effect of the cold stress on morphological and functional parameters of the thymus in the experiment. Morphological Newsletter. 2019; 27 (2): 19–23. DOI: 10.20340/mv-mn.19(27).02.19-23. 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