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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">ymj</journal-id><journal-title-group><journal-title xml:lang="ru">Якутский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Yakut Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-1905</issn><issn pub-type="epub">2312-1017</issn><publisher><publisher-name>ЯНЦ КМП</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25789/YMJ.2019.67.25</article-id><article-id custom-type="elpub" pub-id-type="custom">ymj-1026</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>АРКТИЧЕСКАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ARCTIC MEDICINE</subject></subj-group></article-categories><title-group><article-title>Влияние дополнительной витаминизации рационов школьников Заполярья на вариабельность морфофункциональных параметров иммунной системы</article-title><trans-title-group xml:lang="en"><trans-title>Influence of additional vitaminization of schoolchildren rations in the Arctic on variability of morphofunctional parameters of the immune system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7556-7699</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новицкая</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Novitskaya</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новицкая Валентина Петровна - д.б.н., с.н.с.</p><p>г. Красноярск</p></bio><bio xml:lang="en"><p>Novitskaya Valentina Petrovna – Doctor of Biological Sciences, Senior Researcher Clinical Pathophysiology Laboratories</p><p>660022, Krasnoyarsk, st. Partizana Zheleznyaka d.3 "g", tel.: 8 (391) 228 - 06 – 83</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">impn@impn.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/0000-0003-1583-9928</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прахин</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Praкhin</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Прахин Ефим Исаакович – д.м.н, проф., гл.н.с.</p><p>г. Красноярск</p></bio><bio xml:lang="en"><p>Praкhin Efim Isaakovich – Doctor of Medical Sciences, Professor, Chief Researcher, Laboratory of Clinical Pathophysiology</p><p>660022, Krasnoyarsk, st. Partizana Zheleznyaka d. 3 "g", tel.: 8 (391) 228 - 06 – 83</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">eprakhin@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФИЦ КНЦ СО РАН НИИ МПС</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FRC КSC SB RAS Research Institute of Medical Problems of the North</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>24</day><month>08</month><year>2025</year></pub-date><volume>0</volume><issue>3</issue><fpage>91</fpage><lpage>93</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Новицкая В.П., Прахин Е.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Новицкая В.П., Прахин Е.И.</copyright-holder><copyright-holder xml:lang="en">Novitskaya V.P., Praкhin E.I.</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://ymj.elpub.ru/jour/article/view/1026">https://ymj.elpub.ru/jour/article/view/1026</self-uri><abstract><p>Проведено репрезентативное исследование влияния витаминизации детей Севера на один из важнейших показателей здоровья – иммунитет. Выявлены особенности вариабельности морфофункциональных показателей иммунной системы школьников после длительной витаминизации в условиях Заполярья. Установлено, что после включения поливитаминов в рацион детей наблюдались снижение уровня катехоламинов (КА) и повышение содержания серотонина в лимфоцитах крови. Выявлено, что в группе мальчиков уровень КА снижался в большей степени, чем у девочек. Также после приёма поливитаминов у детей отмечалось повышение содержания палочкоядерных нейтрофилов в периферической крови.</p></abstract><trans-abstract xml:lang="en"><p>The paper reports a representative study of the vitaminization effect of children in the North (Norilsk) on one of the most important indicators of health - immunity. Features of variability of morphofunctional indicators of the immune system of schoolchildren after prolonged vitaminization in the conditions of the Arctic are revealed. It was found that after the inclusion of multivitamins in the diet of children, a decrease in the level of catecholamines (CA) and an increase in the content of serotonin in blood lymphocytes were observed. It was revealed that in the group of boys, the level of CA decreased to a greater extent than in girls. Also, after taking multivitamins in children, an increase in the content of stab neutrophils in the peripheral blood was noted.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Север. школьники</kwd><kwd>витаминизация</kwd><kwd>вариабельность показателей крови</kwd></kwd-group><kwd-group xml:lang="en"><kwd>North</kwd><kwd>schoolchildren</kwd><kwd>vitaminization</kwd><kwd>variability of blood parameters</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">Васильев А.В. 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