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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2022-7.1.7</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-3293</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>ОФТАЛЬМОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OPHTHALMOLOGY</subject></subj-group></article-categories><title-group><article-title>Изменение содержания лизоцима в слёзной жидкости у пациентов с диабетической ретинопатией (пилотное исследование)</article-title><trans-title-group xml:lang="en"><trans-title>Changes of lysozyme content in the lacrimal fluid in patients with diabetic retinopathy (pilot study)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7011-4220</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чупров</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Chuprov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, директор, </p><p>460047, г. Оренбург, ул. Салмышская, 17</p></bio><bio xml:lang="en"><p>Dr. Sc. (Med.), Professor, Director,</p><p>Salmyshskaya str. 17, Orenburg 460047</p></bio><email xlink:type="simple">office@mail.ofmntk.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/0000-0002-1252-1626</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казеннов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazennov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заведующий операционным блоком, </p><p>460047, г. Оренбург, ул. Салмышская, 17</p></bio><bio xml:lang="en"><p>Head of the Surgery Block,</p><p>Salmyshskaya str. 17, Orenburg 460047</p></bio><email xlink:type="simple">nauka@mail.ofmntk.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/0000-0002-5611-5128</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маршинская</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Marshinskaya</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник, 460000, г. Оренбург, ул. 9 Января, 29;</p><p>младший научный сотрудник, Институт биоэлементологии, 460018, г. Оренбург, просп. Победы, 13</p></bio><bio xml:lang="en"><p>Junior Research Officer, 9-go Yanvarya str. 29, Orenburg 460000;</p><p>Junior Research Officer, Institute of Bioelementology, Pobedy ave. 13, Orenburg 460018</p></bio><email xlink:type="simple">m.olja2013@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3717-4533</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казакова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник, 460000, г. Оренбург, ул. 9 Января, 29;</p><p>младший научный сотрудник, Институт биоэлементологии, 460018, г. Оренбург, просп. Победы, 13</p></bio><bio xml:lang="en"><p>Junior Research Officer, 9-go Yanvarya str. 29, Orenburg 460000;</p><p>Junior Research Officer, Institute of Bioelementology, Pobedy ave. 13, Orenburg 460018</p></bio><email xlink:type="simple">vaisvais13@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Оренбургский филиал ФГАУ «НМИЦ «МНТК «Микрохирургия глаза» им. академика С.Н. Фёдорова»&#13;
Минздрава России</institution></aff><aff xml:lang="en"><institution>Orenburg Branch of S. Fyodorov Eye Microsurgery Federal State Institution</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ «Федеральный научный центр биологических систем и агротехнологий Российской академии наук»;&#13;
ФГБОУ ВО «Оренбургский государственный университет», Институт биоэлементологии</institution></aff><aff xml:lang="en"><institution>Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences;&#13;
Orenburg State University, Institute of Bioelementology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>18</day><month>03</month><year>2022</year></pub-date><volume>7</volume><issue>1</issue><fpage>59</fpage><lpage>66</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чупров А.Д., Казеннов А.Н., Маршинская О.В., Казакова Т.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Чупров А.Д., Казеннов А.Н., Маршинская О.В., Казакова Т.В.</copyright-holder><copyright-holder xml:lang="en">Chuprov A.D., Kazennov A.N., Marshinskaya O.V., Kazakova T.V.</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.actabiomedica.ru/jour/article/view/3293">https://www.actabiomedica.ru/jour/article/view/3293</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Сахарный диабет 2-го  типа является одним из наиболее распространённых метаболических нарушений человека. Сахарный диабет может приводить к нарушениям во многих тканях структуры глаза, подвергая пациентов риску развития широкого спектра глазных патологий, связанных с изменениями в его переднем и заднем сегментах. Наиболее часто встречающимся осложнением является диабетическая ретинопатия.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: оценить потенциальную клиническую значимость лизоцима в слёзной жидкости как минимально инвазивного биомаркера диабетических офтальмологических нарушений.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В ходе исследования были сформированы 3 группы. В 1-ю группу (контрольная, n = 10) вошли условно здоровые люди с отсутствием сахарного диабета 2-го  типа. Во 2-ю  группу (основная  1, n  =  15) вошли пациенты с сахарным диабетом 2-го  типа, но с отсутствием диабетических проявлений на глазном дне. В 3-ю группу (основная 2, n = 15) вошли пациенты с сахарным диабетом 2-го типа и с наличием проявлений диабетической ретинопатии разной степени. У пациентов всех групп оценивали уровень лизоцима слезы.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе проведённого исследования было установлено, что  концентрация лизоцима слёзной жидкости у пациентов с сахарным диабетом 2-го типа была достоверно ниже, по сравнению с условно здоровыми пациентами. У пациентов с наличием диабетической ретинопатии разной степени проявления (непролиферативная и пролиферативная формы) на фоне сахарного диабета 2-го типа наблюдались достоверно более низкие значения лизоцима относительно пациентов с сахарным диабетом 2-го типа, но без диабетических офтальмологических проявлений.</p></sec><sec><title>Заключение</title><p>Заключение. Возможно, локальное определение лизоцима в слёзной жидкости может быть потенциальным биомаркером прогрессирования диабетической ретинопатии. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Type 2 diabetes mellitus is one of the most common metabolic disorders in humans. Diabetes mellitus can lead to abnormalities in many tissues of the eye structure, exposing patients to the risk of developing a wide range of ocular pathologies associated with changes in its anterior and posterior segments. The most common complication is diabetic retinopathy.</p></sec><sec><title>The aim</title><p>The aim: to assess the potential clinical significance of lacrimal lysozyme as a minimally invasive biomarker of diabetic ophthalmic disorders.</p></sec><sec><title>Material and methods</title><p>Material and methods. Three groups were formed during the study. Group  1 (Control, n  =  10) included conditionally healthy people with no type  2 diabetes mellitus. Group 2 (Main 1, n = 15) included patients with type 2 diabetes mellitus, but  no  diabetic manifestations in the fundus. Group  3 (Main  2, n  =  15) included patients with type 2 diabetes mellitus and manifestations of diabetic retinopathy of varying degrees. In patients of all groups, the level of tear lysozyme was assessed.</p></sec><sec><title>Results</title><p>Results. It was found that the concentration of lacrimal fluid lysozyme in patients with type 2 diabetes mellitus was significantly lower than in healthy patients. In patients with diabetic retinopathy of varying degrees of manifestation (non-proliferative and proliferative forms) against the background of type  2 diabetes mellitus, significantly lower values of lysozyme were observed compared to patients with type 2 diabetes mellitus, but without diabetic ophthalmic manifestations.</p></sec><sec><title>Conclusion</title><p>Conclusion. It is possible that local detection of lysozyme in the lacrimal fluid may be potential biomarkers of the progression of diabetic retinopathy. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>лизоцим</kwd><kwd>слёзная жидкость</kwd><kwd>сахарный диабет 2-го типа</kwd><kwd>диабетическая ретинопатия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lysozyme</kwd><kwd>lacrimal fluid</kwd><kwd>type 2 diabetes mellitus</kwd><kwd>diabetic retinopathy</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">Roden M, Shulman GI. The integrative biology of type 2 diabetes. Nature. 2019; 576(7785): 51-60. doi: 10.1038/s41586-019-1797-8</mixed-citation><mixed-citation xml:lang="en">Roden M, Shulman GI. The integrative biology of type 2 diabetes. 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