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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.2018.62.11</article-id><article-id custom-type="elpub" pub-id-type="custom">ymj-1258</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>МАТЕРИАЛЫ НАУЧНО-ПРАКТИЧЕСКОЙ КОНФЕРЕНЦИИ С МЕЖДУНАРОДНЫМ УЧАСТИЕМ «ВЛИЯНИЕ ХОЛОДА НА ОРГАНИЗМ ЧЕЛОВЕКА»</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS OF SCIENTIFIC-PRACTICAL CONFERENCE WITH INTERNATIONAL PARTICIPATION «THE INFLUENCE OF COLD ON THE HUMAN ORGANISM»</subject></subj-group></article-categories><title-group><article-title>Интенсивность свободнорадикального окисления липидов в организме больных холодовой травмой</article-title><trans-title-group xml:lang="en"><trans-title>Intensity of lipid peroxidation in patients with cold injury</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>Николаев</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>НИКОЛАЕВ Вячеслав Михайлович – к.б.н., гл.н.с.-руковод. отдела</p></bio><bio xml:lang="en"><p>Nikolaev Vyacheslav Mikhailovich - PhD, head of the department for studying adaptation mechanisms</p><p>677010, Yakutsk, ul. Sereylyakhskoyeshosse 4</p><p>phone: (4112) 32-19-81</p></bio><email xlink:type="simple">Nikolaev1126@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>Алексеев</surname><given-names>Р. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseev</surname><given-names>R. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>АЛЕКСЕЕВ Рево Захарович – д.м.н., с.н.с., проф. </p></bio><bio xml:lang="en"><p>Alekseev Revo Zakharovich - MD, Professor;  Senior Researcher</p><p>677010, Yakutsk, ul. Sergelyakhskoyeshosse 4</p><p>phone: (4112) 32-19-81</p></bio><email xlink:type="simple">ynckmp@yandex.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>Федорова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ФЕДОРОВА Сардана Аркадьевна – д.б.н., с.н.с., зав. лаб. </p></bio><bio xml:lang="en"><p>Fedorova Sardana Arkadevna - Doctor of Biological Sciences, Head of the Research Laboratory of Molecular Biology</p><p>677000, Yakutsk, ul. Kulakovsky, 46, k.504</p><p>phone: (4112) 49-68-42</p></bio><email xlink:type="simple">sa.fedorova@s-vfu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ЯНЦ КМП<country>Россия</country></aff><aff xml:lang="en">Yakutsk Scientific Center of Complex Medical Problems<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ЯНЦ КМП; СВФУ им. М.К. Аммосова<country>Россия</country></aff><aff xml:lang="en">M.K. Ammosov North-Eastern Federal University; Yakutsk Scientific Center of Complex Medical Problems<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">ЯНЦ КМП; СВФУ им. М.К. Аммосова<country>Россия</country></aff><aff xml:lang="en">M.K. AmmosovNorth-Eastern Federal University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>09</day><month>09</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>34</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Николаев В.М., Алексеев Р.З., Федорова С.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Николаев В.М., Алексеев Р.З., Федорова С.А.</copyright-holder><copyright-holder xml:lang="en">Nikolaev V.M., Alekseev R.Z., Fedorova S.A.</copyright-holder><license 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/1258">https://ymj.elpub.ru/jour/article/view/1258</self-uri><abstract><p>Проведено исследование интенсивности протекания процессов перекисного окисления липидов и состояния антиоксидантной защиты в организме больных с холодовой травмой различной степени тяжести. Установлено, что в организме больных с отморожением конечностей интенсивность свободнорадикального окисления и уровень антиоксидантной защиты зависели от степени отморожения.</p></abstract><trans-abstract xml:lang="en"><p>The authors report their study on the intensity of lipid peroxidation processes and the state of antioxidant protection in patients with cold trauma of varying severity. It was established that in the organism of patients with frostbite of extremities, the intensity of free radical oxidation and the level of antioxidant defense depended on the degree of frostbite.</p><p>Clinical and biochemical studies were conducted in 151 people, 81 of whom were patients with a cold trauma of varying severity, who entered the burn department of the Republican Hospital №2. The control group included 70 practically healthy people. The material of the study was fasting venous blood samples, drawn from the ulnar vein.</p><p>The parameters of the intensity of free radical lipid oxidation (malonicdialdehyde, diene conjugates) and antioxidant protection (low-molecular antioxidants, activity of superoxide dismutase, catalase, glutathione peroxidase, glutathionereductase) were determined by spectrophotometric methods. Clinical and biochemical parameters in blood serum were determined on the biochemical automatic analyzer CobasMiraPlus (Roche).</p><p>In the body of patients with frostbite of the extremities of the first and second groups, a significant increase in the parameters of lipid peroxidation - MDA and DC - is observed. In patients of the second group, the intensity of lipid peroxidation processes was higher than in patients of the first group.</p><p>The state of the body’s antioxidant defense depends on the severity of the injury. In patients of the first group, the activity of SOD is increased by 8 times, CAT by 1.3 times, HP by 1.7 times, and GR activity decreased by 1.9 times in comparison with the control. The concentration of LMWA increases 2.1 times, and the content of ascorbic acid decreases by 1.2 times. In patients of the second group with respect to control, the activity of SOD increases 12.6 times, catalase 1.1 times, HP 1.5 times, and GH activity decreased 2.8 times. The content of LMAO increases 1.5 times, and the level of ascorbic acid in the blood decreases 2.4 times.</p><p>The shift in the prooxidant-antioxidant equilibrium toward the intensification of free radical reactions is also indicated by an increase in the coefficients: KSOD / CAT, KSOD / HP. The values of the coefficients (KSOD / CAT, KSOD / GP) depend on the severity of the cold trauma.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>перекисное окисление липидов</kwd><kwd>антиоксидантная защита</kwd><kwd>холодовая травма</kwd><kwd>кататоксические и синтоксические программы адаптации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lipid peroxidation</kwd><kwd>antioxidant protection</kwd><kwd>cold trauma</kwd><kwd>catatoxic and syntoxic adaptation programs</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при финансовой поддержке госзадания Минобрнауки РФ №6.1766.2017.ПЧ, проекта СВФУ им. М.К. Аммосова «Генетические особенности населения Якутии: структура генофонда, адаптация к холоду, психогенетические характеристики, распространенность некоторых наследственных и инфекционных заболеваний» и программы биоресурсных коллекций ФАНО России УНУ «Геном Якутии» ЯНЦ КМП (БРК: 0556-2017-0003).</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The work was carried out with the financial support of the Ministry of Education and Science of the Russian Federation №6.1766.2017.ПЧ, the project of NEFU named after M.K. Ammosov: «Genetic features of the population of Yakutia: the structure of the gene pool, adaptation to cold, psychogenetic characteristics, the prevalence of some hereditary and infectious diseases» and the program of bioresource collections of the FANO «The Genome of Yakutia» YSC CMP (БРК: 0556-2017-0003).</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">Вихриев Б.С. Местные поражения холодом / Б.С. Вихриев, С.Х. Кичемасов, Ю.Р. Скворцов. – Л.: Медицина, 1991. С. 192.</mixed-citation><mixed-citation xml:lang="en">Vihriev B.S. Kichemasov S.Kh. Skvorcov Yu.R. Mestnye porazheniya holodom [Local cold lesions]. Leningrad, Medicina, 1991, p. 192.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Владимиров Ю.А. 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