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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-SOT-2850</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2850</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Изучение содержания иммуноглобулинов и окисленных белков в эякуляте при бесплодии</article-title><trans-title-group xml:lang="en"><trans-title>Study of the immunoglobulin and oxidized protein content of semen under infertility</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4765-9702</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вавилов</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vavilov</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вавилов Никита Васильевич — ассистент кафедры факультетской терапии № 1.</p><p>614990, Пермь, ул. Петропавловская, 26</p><p>Тел.: 8 (902) 830-97-16</p></bio><bio xml:lang="en"><p>Nikita V. Vavilov - Assistant Professor, Department of Faculty Therapy, E.A. Vagner Perm State Medical University.</p><p>26 Petropavlovskaya St, Perm 614990</p><p>Phone: +7 (902) 830-97-16</p></bio><email xlink:type="simple">nikione@yandex.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/0000-0002-5112-2003</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Годовалов</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Godovalov</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Годовалов Анатолий Петрович — кандидат медицинских наук, ведущий научный сотрудник Центральной научно-исследовательской лаборатории.</p><p>Пермь</p></bio><bio xml:lang="en"><p>PhD (Medicine), Leading Research Associate, Central Research Laboratory, E.A. Vagner Perm State Medical University.</p><p>Perm</p></bio><email xlink:type="simple">AGodovalov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Пермский государственный медицинский университет имени академика Е.А. Вагнера» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>E.A. Vagner Perm State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2023</year></pub-date><volume>25</volume><issue>5</issue><fpage>1265</fpage><lpage>1268</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вавилов Н.В., Годовалов А.П., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Вавилов Н.В., Годовалов А.П.</copyright-holder><copyright-holder xml:lang="en">Vavilov N.V., Godovalov A.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/2850">https://www.mimmun.ru/mimmun/article/view/2850</self-uri><abstract><p>Среди причин мужского бесплодия достаточно внимания уделяется окислительному стрессу, который в свою очередь является патогенетическим звеном воспалительного процесса. Однако практически нет информации о содержании окисленно модифицированных протеинов в спермальной жидкости, что затрудняет изучение патогенеза заболеваний репродуктивной системы мужчин. Отчасти окисление протеинов может быть обусловлено продукцией активных форм кислорода микроорганизмами как напрямую, так и опосредованно через активацию клеток иммунной системы. Цель исследования — изучить уровень окислено модифицированных белков и изменения концентрации иммуноглобулинов в спермальной жидкости при бактериоспермии. Проведено исследование эякулята 48 мужчин, обратившихся в клинику по поводу бесплодия в браке. Группу сравнения составили 32 практически здоровых мужчины, у которых отсутствовал рост микроорганизмов в образцах эякулята. При проведении бактериологического анализа исследуемые образцы разводили в 10 раз и использовали общепринятую методику. В спермальной жидкости определяли концентрацию альбумина, иммуноглобулинов A, M, G, E. Окислительную модификацию белков оценивали в реакции с 2,4-динитрофенилгидразином. Концентрацию окисленных белков выражали в нмоль/мг общего белка исследуемой биологической жидкости. Для определения концентрации белка использовали биуретовый метод. Статистический анализ результатов проводили с использованием методов описательной статистики и t-критерия Стьюдента для парных данных. Концентрация белка в семенной жидкости среди изучаемых групп существенно не отличалась. Концентрация альбумина (16,96±1,28 мг/мл) была статистически значимо ниже при отсутствии роста микроорганизмов, чем при бактериоспермии. При бактериоспермии отмечено снижение концентрации IgM и IgA и повышение уровня IgG. Степень окисления белков максимальна при выделении из семенной жидкости энтеробактерий. Таким образом, в ходе исследований было установлено, что, несмотря на отсутствие клиники, при бессимптомной бактериоспермии наблюдается секреция иммуноглобулинов G в спермальную жидкость. Показано накопление окисленных белков в семенной жидкости при бактериоспермии.</p></abstract><trans-abstract xml:lang="en"><p>Among the causes of male infertility, enough attention is paid to oxidative stress, which in turn is a pathogenetic link in the inflammatory process. However, there is practically no information on the content of oxidized modified proteins in the semen, which makes it difficult to study the pathogenesis of diseases of the male reproductive system. In part, protein oxidation may be due to the production of reactive oxygen species by microorganisms, both directly and indirectly through the activation of immune system cells. The aim of the research was to study the level of oxidized modified proteins and changes in immunoglobulin concentrations in the semen under bacteriospermia. A study was made of the ejaculate of 48 men who applied to the clinic for infertility in marriage. The comparison group consisted of 32 practically healthy men who had no growth of microorganisms in the ejaculate samples. When conducting bacteriological analysis, the studied samples were diluted 10 times and used the generally accepted method. The concentration of albumin, immunoglobulins A, M, G, E was determined in the spermatic fluid. The oxidative modification of proteins was evaluated in the reaction with 2,4-dinitrophenylhydrazine. The concentration of oxidized proteins was expressed in nmol/mg of the total protein of the studied biological fluid. The biuret method was used to determine the protein concentration. Statistical analysis of the results was performed using descriptive statistics and Student's t-test for paired data. The concentration of protein in the seminal fluid did not differ significantly among the studied groups. The albumin concentration (16.96±1.28 mg/mL) was statistically significantly lower in the absence of microorganism growth than in bacteriospermia. With bacteriospermia, a decrease in the concentration of IgM and IgA and an increase in the level of IgG were noted. The degree of protein oxidation is maximum when enterobacteria are isolated from seminal fluid. Thus, during the studies it was found that, despite the absence of a clinic, with asymptomatic bacteriospermia, the secretion of immunoglobulins G into the semen is observed. The accumulation of oxidized proteins in the seminal fluid in bacteriospermia has been shown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>окисленно модифицированные белки</kwd><kwd>спермальная жидкость</kwd><kwd>динитрофенилгидразин</kwd><kwd>альдегидные производные</kwd><kwd>кетоновые производные</kwd><kwd>иммуноглобулины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oxidized proteins</kwd><kwd>semen</kwd><kwd>dinitrophenylhydrazine</kwd><kwd>aldehyde derivatives</kwd><kwd>ketone derivatives</kwd><kwd>immunoglobulins</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">Bieniek J.M., Drabovich A.P., Lo K.C. Seminal biomarkers for the evaluation of male infertility. Asian J. Androl., 2016, Vol. 18, no. 3, pp. 426-433.</mixed-citation><mixed-citation xml:lang="en">Bieniek J.M., Drabovich A.P., Lo K.C. Seminal biomarkers for the evaluation of male infertility. Asian J. 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