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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20240417</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-1625</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>КЛИНИЧЕСКАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Значимость сывороточного лизоцима в прогнозировании бактериальных осложнений у пациентов после трансплантации почки</article-title><trans-title-group xml:lang="en"><trans-title>The significance of serum lysozyme in predicting bacterial complications in patients after kidney transplantation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6753-2074</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Земко</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Ziamko</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Земко Виктория Юрьевна, к.м.н.</p><p>Республика Беларусь, 210009, г. Витебск, пр. Фрунзе, 27</p></bio><bio xml:lang="en"><p>Viktoryia Yu. Ziamko, candidate of medical sciences</p><p>Republic of Belarus, 210009, Vitebsk, Frunze ave., 27</p></bio><email xlink:type="simple">viktoryiazia@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8226-6405</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Окулич</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Okulich</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окулич Виталий Константинович, к.м.н.</p><p>Республика Беларусь, 210009, г. Витебск, пр. Фрунзе, 27</p></bio><bio xml:lang="en"><p>Vitaly K. Okulich, candidate of medical sciences</p><p>Republic of Belarus, 210009, Vitebsk, Frunze ave., 27</p></bio><email xlink:type="simple">vokul@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/0000-0003-1965-1850</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дзядзько</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzyadzko</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дзядзько Александр Михайлович, д.м.н., проф.</p><p> 220045, г. Минск, ул. Семашко, 8</p></bio><bio xml:lang="en"><p>Alexandr M. Dzyadzko, doctor of medical sciences, professor</p><p>Republic of Belarus, 220045, Minsk, Semashko st., 8</p></bio><email xlink:type="simple">2726996@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Витебский государственный ордена Дружбы народов медицинский университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Vitebsk State Order of Peoples’ Friendship Medical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Минский научно-практический центр хирургии, трансплантологии и гематологии</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Minsk Scientific and Practical Center for Surgery, Transplantology and Hematology</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>08</month><year>2024</year></pub-date><volume>44</volume><issue>4</issue><fpage>151</fpage><lpage>158</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Земко В.Ю., Окулич В.К., Дзядзько А.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Земко В.Ю., Окулич В.К., Дзядзько А.М.</copyright-holder><copyright-holder xml:lang="en">Ziamko V.Y., Okulich V.K., Dzyadzko A.M.</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://sibmed.elpub.ru/jour/article/view/1625">https://sibmed.elpub.ru/jour/article/view/1625</self-uri><abstract><p>Цель исследования – провести сравнительный анализ активности сывороточного лизоцима и изучить его значимость в прогнозировании бактериальных осложнений у пациентов после трансплантации почки. Материал и методы. Изучена активность лизоцима 99 пациентов после трансплантации почки и 81 практически здорового добровольца. Пациенты в зависимости от времени после выполненного оперативного вмешательства были разделены на пять групп: 1-я группа – 1-й день после трансплантации почки (n = 6); 2-я группа – 1–5 мес. (n = 10), 3-я группа – 6–12 мес. (n = 21), 4-я группа – 2–5 лет (n = 30), 5-я группа – 6–10 лет после трансплантации почки (n = 32). Выполнен анализ корреляции между сывороточной активностью лизоцима, абсолютным количеством лейкоцитов и содержанием креатинина. Определена активность лизоцима при бактериальных осложнениях, дисфункции трансплантата и при отторжении органа. Результаты и их обсуждение. В 1-й день после трансплантации почки активность лизоцима была минимальной, составив 117,95 [60,80–133,51] мкг/мл (медиана [нижняя квартиль – верхняя квартиль]) (в группе здоровых добровольцев – 243,80 [190,76–305,69] мкг/мл, p &lt; 0,001). Через 1 мес. после оперативного вмешательства она нормализовалась (292,08 [311,66–218,48] мкг/мл) и не отличалась от величины показателя группы практически здоровых добровольцев на протяжении 5 мес. (p = 0,17). Активность лизоцима в сыворотке крови пациентов после трансплантации почки имела обратную умеренную корреляцию с содержанием креатинина в сыворотке крови (r = –0,32, p &lt; 0,05). Пороговое значение вероятности присоединения бактериальных инфекций для сывороточного лизоцима составляет &gt;321,4 мкг/мл (p = 0,003). Уровень креатинина более 0,11 ммоль/л позволяет прогнозировать дисфункцию трансплантата. Заключение. В первые сутки после трансплантации почки низкая активность лизоцима свидетельствует о высоком риске присоединения бактериальной инфекции. Через 1 мес. после оперативного вмешательства показатель нормализуется, что свидетельствует о восстановлении гуморального компонента неспецифической иммунной резистентности макроорганизма. Выявленная взаимосвязь между сывороточным уровнем креатинина и лизоцима, а также повышение последнего позволяют использовать лизоцим в качестве дополнительного диагностического критерия острой бактериальной инфекции, а креатинин – дисфункции трансплантата.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to conduct a comparative analysis of serum lysozyme activity and study its innovativeness in predicting bacterial complications after kidney transplantation. Material and methods. Lysozyme activity was studied in 99 patients after kidney transplantation and 81 practically healthy volunteers. Patients depending on period after surgery were divided into five groups: group 1 – 1st day after kidney transplantation (n = 6); group 2 – 1–5 months (n = 10); group 3 – 6–12 months (n = 21); group 4 – 2–5 years (n = 30); group 5 – 6–10 years (n = 32). An analysis of the correlation between serum lysozyme level, absolute leukocyte count and creatinine content was performed. Lysozyme activity was assessed in bacterial complications, transplant dysfunction and organ rejection. Results and discussion. On the 1st day after kidney transplantation lysozyme activity was minimal – 117.95 [60.80–133.51] µg/ ml (median [lower quartile – upper quartile]) (in healthy volunteers it was 243.80 [190.76–305.69] µg/ml, p &lt; 0,001). One month after surgery, it returned to normal (292.08 [311.66–218.48] μg/ml) and did not differ from the value of the group of practically healthy volunteers for 5 months (p = 0,17). Lysozyme activity in serum of patients after kidney transplantation had inverse moderate correlation with creatinine content (r = –0,32, p &lt; 0,05). The threshold value for the probability of bacterial infections for serum lysozyme was &gt; 321,4 μg/ml (p = 0,003). Creatinine level &gt; 0,11 mmol/l predicts graft dysfunction. Conclusions. On the first day after transplantation a low level of lysozyme indicates high risk of bacterial infection. One month after surgery lysozyme returned to normal which indicates restoration of humoral component of nonspecific immune resistance. Relationship between creatinine content and lysozyme activity as well as an increase in the latter in comparison with healthy group allows to use lysozyme as an additional diagnostic criterion for acute bacterial infection and creatinine – for prognosis of graft dysfunction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трансплантация почки</kwd><kwd>лизоцим</kwd><kwd>инфекции мочевыводящих путей</kwd><kwd>пиелонефрит</kwd><kwd>креатинин</kwd><kwd>дисфункция трансплантата</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kidney transplantation</kwd><kwd>lysozyme</kwd><kwd>urinary tract infections</kwd><kwd>pyelonephritis</kwd><kwd>creatinine</kwd><kwd>graft dysfunction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы НИР «Разработка нового метода диагностики и интенсивной терапии сепсиса» (№ ГР20190090 от 05.02.2019).</funding-statement><funding-statement xml:lang="en">The work was performed as a part of the research topic «Development of a new method for diagnosing and intensive care of sepsis» (State registration No 20190090 from 02.05.2019).</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">Voora S., Adey D.B. 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