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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">medlit</journal-id><journal-title-group><journal-title xml:lang="ru">Гигиена и санитария</journal-title><trans-title-group xml:lang="en"><trans-title>Hygiene and Sanitation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-9900</issn><issn pub-type="epub">2412-0650</issn><publisher><publisher-name>Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47470/0016-9900-2019-98-1-28-32</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-248</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>ГИГИЕНА ОКРУЖАЮЩЕЙ СРЕДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ENVIRONMENTAL HYGIENE</subject></subj-group></article-categories><title-group><article-title>Ответная реакция организма на сочетанное воздействие ингаляционной химической нагрузки и инвазии лямблиями</article-title><trans-title-group xml:lang="en"><trans-title>The response of the organism of adolescents to the inhalation chemical load and infestation with Giardia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1400-6345</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маснавиева</surname><given-names>Людмила Борисовна</given-names></name><name name-style="western" xml:lang="en"><surname>Masnavieva</surname><given-names>Liudmila B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. биол. наук, ст. науч. сотр. лаб. иммуно-биохимических и молекулярно-генетических исследований в гигиене ФГБНУ «Восточно-Сибирский институт медико-экологических исследований. </p><p>e-mail: Masnavieva_Luda@mail.ru</p></bio><bio xml:lang="en"><p>Ph.D., senior researcher of the Laboratory of immunological, biochemical, molecular and genetic researches in the Hygiene of the East-Siberian Institute of Medical and Ecological Research, Angarsk, 665827, Russian Federation.</p><p>e-mail:  Masnavieva_Luda@mail.ru</p></bio><email xlink:type="simple">Masnavieva_Luda@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5608-0818</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудаева</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudaeva</surname><given-names>I. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Восточно-Сибирский институт медико-экологических исследований»</institution></aff><aff xml:lang="en"><institution>East-Siberian Institute of Medical and Ecological Research</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>14</day><month>10</month><year>2020</year></pub-date><volume>98</volume><issue>1</issue><fpage>28</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Маснавиева Л.Б., Кудаева И.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Маснавиева Л.Б., Кудаева И.В.</copyright-holder><copyright-holder xml:lang="en">Masnavieva L.B., Kudaeva I.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.rjhas.ru/jour/article/view/248">https://www.rjhas.ru/jour/article/view/248</self-uri><abstract><sec><title>Введение</title><p>Введение. Антропогенная нагрузка оказывает влияние на организм человека, создавая предпосылки для развития адаптационных или дезадаптационных процессов, первостепенную роль в которых играет иммунная система. Инвазия лямблиями также влияет на показатели иммунитета. Цель исследования – оценка уровней цитокинов и иммуноглобулина А у подростков с лямблиозом, проживающих в условиях различной ингаляционной химической нагрузки. </p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 319 подростков. Проведена оценка индивидуальной ингаляционной химической нагрузки на организм подростков с учётом данных о содержании примесей в атмосферном воздухе, воздухе помещений, персонифицированных данных школьников. В соответствии с индивидуальными значениями индекса опасности нарушений иммунитета школьников было выделено три группы, в каждой из которых установлены лица с инвазией лямблиями и без таковой. У школьников было изучено содержание антител к лямблиям, интерлейкинов-2 и -10, альфа- и гамма-интерферонов, иммуноглобулина А методом иммуноферментного анализа. </p></sec><sec><title>Результаты</title><p>Результаты. Установлено, что хроническая ингаляционная химическая нагрузка иммунотропными веществами вызывает снижение уровней INF-α, INF-γ и IgA. При индексах опасности развития патологии иммунной системы менее 2, инвазия лямблиями вызывает повышение содержания IgA, IL-2, INF-α и INF-γ. </p></sec><sec><title>Обсуждение</title><p>Обсуждение. При индексах опасности развития патологии иммунной системы менее 2 инвазия лямблиями вызывает повышение уровней INF-α, INF-γ, IL-2, IgA, что свидетельствует об активации иммунной защиты. При индексах опасности более трёх различия в уровнях цитокинов у подростков с лямблиозом и без такового нивелируются, что, возможно, является следствием изменений в иммунной системе, обусловленных высоким уровнем химической нагрузки.</p></sec><sec><title>Заключение</title><p>Заключение. При высокой ингаляционной нагрузке веществами, тропными к иммунной системе, наличие паразитарной инвазии и химического загрязнения воздушной среды оказывает синергическое угнетающее действие на иммунную систему, а именно приводит к снижению содержания IL-10, IgA, INF-α и INF-γ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The anthropogenic load affects the human body, creating the prerequisites for the development of adaptation or maladaptation processes, in which the immune system plays a major role. Giardia infection also affects the immune system. </p><p>The aim of the study was to assess the levels of cytokines and immunoglobulin A in adolescents with giardiasis living in conditions of the different inhalation chemical load </p></sec><sec><title>Material and Methods</title><p>Material and Methods. 319 adolescents were included in the study. The individual inhalation chemical load on the adolescents was calculated taking into account data on the content of impurities in the atmospheric air, indoor air, personalized data of schoolchildren. Three groups were selected in accordance with the individual values of the hazard index of the immunity disorders in students. Cases with and without Giardia infection were identified in each group. The content of antibodies to lamblia, interleukins-2 and -10, interferons-alpha and-gamma, immunoglobulin A in schoolchildren was studied by the method of enzyme immunoassay.</p></sec><sec><title>Results</title><p>Results. The chronic inhalation chemical load with immunotropic substances have been established to cause a decrease in the levels of INF-α, INF-γ, and IgA. Giardia was found to induce the increase in the levels of IgA, IL-2, INF-α, and INF-γ, at hazard indices of the development of pathology of the immune system less than 2.</p></sec><sec><title>Discussion</title><p>Discussion. Giardia invasion causes an increase in INF-α, INF-γ, IL-2, IgA levels, which indicates the activation of the immune protection when hazard indices of a danger of impaired immunity were less of 2. Differences in cytokine levels in adolescents with and without giardiasis are leveled when hazard indices were more than 3, which is probably the result of changes in the immune system due to a high level of the chemical stress.</p></sec><sec><title>Conclusion</title><p>Conclusion. The presence of parasitic infestation and chemical air pollution have a synergistic inhibitory effect on the immune system, namely, they reduce IL-10, Ig A, INF-α, and INF-γ levels, with the higher inhalation load by substances tropic to the immune system.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>подростки</kwd><kwd>ингаляционная химическая нагрузка</kwd><kwd>иммуноглобулины</kwd><kwd>интерлейкины</kwd><kwd>интерфероны</kwd><kwd>лямблии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>adolescents</kwd><kwd>inhalation chemical load</kwd><kwd>immunoglobulins</kwd><kwd>interleukins</kwd><kwd>interferons</kwd><kwd>Giardia</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">Ефимова Н.В., Дорогова В.Б., Журба О.М., Никифорова В.А. Оценка воздействия фтора на детское население Иркутской области. 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