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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17863</article-id><article-id pub-id-type="doi">10.15789/2220-7619-SRI-17863</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Serotonin-related immunomodulatory effect in a model of a contaminated wound in warm-blooded animals</article-title><trans-title-group xml:lang="ru"><trans-title>Иммуномодулирующее действие серотонина в модели контаминированной раны у теплокровных</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chibirova</surname><given-names>Tamara T.</given-names></name><name xml:lang="ru"><surname>Чибирова</surname><given-names>Тамара Тамерлановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Junior Researcher, Laboratory of Subcellular Structures, Institute of Biomedical Research, Junior Researcher, Laboratory of Systemic Environmental Analysis</p>
<p/></bio><bio xml:lang="ru"><p>младший научный сотрудник лаборатории субклеточных культур Института биомедицинских исследований, младший научный сотрудник лаборатории системного экологического анализа</p></bio><email>tamaramerdenova@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Skupnevskii</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Скупневский</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Biology), Head of the Laboratory of Systemic Environmental Analysis</p></bio><bio xml:lang="ru"><p>д.б.н., зав. лабораторией системного экологического анализа</p></bio><email>tamaramerdenova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saveljev</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Савельев</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Laboratory Assistant, Laboratory of Systemic Environmental Analysis</p></bio><bio xml:lang="ru"><p>лаборант лаборатории системного экологического анализа</p></bio><email>tamaramerdenova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kokaev</surname><given-names>R. I.</given-names></name><name xml:lang="ru"><surname>Кокаев</surname><given-names>Р. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Head of the Laboratory of Cell Technologies , Institute of Biomedical Research</p></bio><bio xml:lang="ru"><p>к.м.н., зав. лабораторией клеточных технологий Института биомедицинских исследований</p></bio><email>tamaramerdenova@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">North Ossetian State University named after K.L. Khetagurov</institution></aff><aff><institution xml:lang="ru">ФГОУ ВО Северо-Осетинский государственный университет им. К.Л. Хетагурова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Vladikavkaz Scientific Center of the RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН Федерального научного центра «Владикавказский
научный центр Российской академии наук»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-06-23" publication-format="electronic"><day>23</day><month>06</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-11-06" publication-format="electronic"><day>06</day><month>11</month><year>2025</year></pub-date><volume>15</volume><issue>4</issue><issue-title xml:lang="en">Russian Journal of Infection and Immunity</issue-title><issue-title xml:lang="ru">Инфекция и иммунитет</issue-title><fpage>689</fpage><lpage>695</lpage><history><date date-type="received" iso-8601-date="2025-02-24"><day>24</day><month>02</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-06-09"><day>09</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Chibirova T.T., Skupnevskii S.V., Saveljev R.V., Kokaev R.I.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Чибирова Т.Т., Скупневский С.В., Савельев Р.В., Кокаев Р.И.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Chibirova T.T., Skupnevskii S.V., Saveljev R.V., Kokaev R.I.</copyright-holder><copyright-holder xml:lang="ru">Чибирова Т.Т., Скупневский С.В., Савельев Р.В., Кокаев Р.И.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://iimmun.ru/iimm/article/view/17863">https://iimmun.ru/iimm/article/view/17863</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> The treatment of contaminated wounds remains a significant challenge, and the solution to this problem may lie in the realm of pathogenetic therapy. The aim of this study was to investigate serotonin-related immunoregulatory effects in a contaminated wound model in experimental animals.</p> <p><bold>Materials and methods.</bold> Wistar rats underwent surgical skin incisions in the epigastric region along the abdominal white line. Control animals received intraperitoneal saline (1st group) injections. Experimental animals were administered serotonin (days 0–5) at a dosage of 1.43 mg/kg b.w. intraperitoneally (2nd group); a serotonin pulse therapy (1.43; 1.43; 3.58; 7.15; 14.30 mg/kg) regimen was also administered (3rd group). After 5 days, the animals were euthanized, and microbiological, immunological, and histological analyses were performed. <italic>Results.</italic> Upon serotonin treatment, total microbial wound and peri-wound contamination (both hemolytic and non-hemolytic) decreased by 27% compared to control group (p &gt; 0.05). The number of yeast-like and mold-like fungi also decreased significantly in experimental groups, by 4 times in the low dose group (1.43 mg/kg/day) and 4.6 times after pulse therapy. At the same time, an immunomodulatory effect was noted presented as increased neutrophil phagocytic activity, IL-6 levels, and activation of granulocyte lineage in the hematopoietic system. Histological analysis revealed accelerated skin regeneration in groups of treated animals.</p> <p><bold>Conclusion.</bold> Serotonin administration has an immunomodulatory effect in a model of contaminated wounds in animals, leading to reduced bacterial contamination and accelerated wound healing.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Лечение контаминированных ран остается актуальной проблемой, решение которой может лежать в плоскости патогенетической терапии. Цель: изучить иммунорегуляторное действие серотонина в модели контаминированной раны у экспериментальных животных.</p> <p><bold>Материалы и методы.</bold> В эксперименте использованы крысы линии Wistar, которым в эпигастральной области вдоль белой линии живота производили хирургическое рассечение кожи. Контрольных животных (внутрибрюшинное введение ф/р-ра — 1-я группа) и экспериментальных животных (введение серотонина, 0–5 дни, в дозировке 1,43 мг/кг внутрибрюшинно — 2-я группа; введение серотонина в режиме пульс-терапии 1,43; 1,43; 3,58; 7,15; 14,30 мг/кг — 3-я группа) через 5 дней подвергали эвтаназии и проводили микробиологические (общее микробное число, гемолитическая и негемолитическая микрофлора), иммунологические (IL-6, фагоцитарная активность нейтрофилов, лейкограмма) и гистологические исследования.</p> <p><bold>Результаты.</bold> На фоне серотонина общая обсемененность и гемолитическая активность микрофлоры струпа и околораневой поверхности снизилась относительно контрольной группы на 27% (p &gt; 0,05), также уменьшилось количество дрожжеподобных и плесневых грибов в экспериментальных группах в 4,0 раза в схеме 1,43 мг/кг/сут. серотонина (р = 0,003) и в 4,6 раза в режиме пульс-терапии (р = 0,002). При этом отмечен иммуномодулирующий эффект: увеличение фагоцитарной активности нейтрофилов, концентрации IL-6 и активация гранулоцитарного ростка гемопоэза. <italic>Заключение.</italic> Введение серотонина оказывает иммуномодулирующее действие в модели контаминированной раны у животных, что приводит к снижению бактериальной загрязненности поверхности ран и ускорению процессов регенерации.</p></trans-abstract><kwd-group xml:lang="en"><kwd>acute inflammation</kwd><kwd>hemolytic microflora</kwd><kwd>immunomodulatory effects</kwd><kwd>microbial contamination</kwd><kwd>phagocytosis</kwd><kwd>serotonin</kwd><kwd>tissue regeneration</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гемолитическая микрофлора</kwd><kwd>иммуномодулирующий эффект</kwd><kwd>микробное обсеменение</kwd><kwd>острое воспаление</kwd><kwd>регенерация тканей</kwd><kwd>серотонин</kwd><kwd>фагоцитоз</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Долгушин И.И., Мезенцева Е.А., Савочкина А.Ю., Кузнецова Е.К. 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