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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">glaucoma</journal-id><journal-title-group><journal-title xml:lang="ru">Национальный журнал Глаукома</journal-title><trans-title-group xml:lang="en"><trans-title>National Journal glaucoma</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2078-4104</issn><issn pub-type="epub">2311-6862</issn><publisher><publisher-name>Federal State Budgetary Institution of Science “Krasnov Research Institute of Eye Diseases”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53432/2078-4104-2026-25-2-11-17</article-id><article-id custom-type="elpub" pub-id-type="custom">glaucoma-623</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Общий белок и α2-макроглобулин в слезной жидкости при первичной открытоугольной глаукоме при разном уровне офтальмотонуса до и после хирургического лечения</article-title><trans-title-group xml:lang="en"><trans-title>Total protein and α2-macroglobulin in lacrimal fluid in primary open-angle glaucoma at different levels of intraocular pressure before and after surgical treatment</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6922-0464</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Сергей Юрьевич, д.м.н., начальник отдела глаукомы </p><p>105062, Москва, ул. Садовая-Черногрязская, 14/19</p></bio><bio xml:lang="en"><p>Dr. Sci. (Med.), Head of the Glaucoma Department </p><p>14/19, Sadovaya-Chernogryazskaya St., Moscow, 105062</p></bio><email xlink:type="simple">glaucomatosis@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/0000-0001-8032-4248</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павленко</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlenko</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., начальник отдела патофизиологии и биохимии </p><p>105062, Москва, ул. Садовая-Черногрязская, 14/19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Med.), Head of the Department of Pathophysiology and Biochemistry </p><p>14/19, Sadovaya-Chernogryazskaya St., Moscow, 105062</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7787-8581</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лисовская</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lisovskaya</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>научный сотрудник отдела патофизиологии и биохимии </p><p>105062, Москва, ул. Садовая-Черногрязская, 14/19</p></bio><bio xml:lang="en"><p>researcher at the Department of Pathophysiology and Biochemistry </p><p>14/19, Sadovaya-Chernogryazskaya St., Moscow, 105062</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8090-6034</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маркелова</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Markelova</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>научный сотрудник отдела глаукомы </p><p>105062, Москва, ул. Садовая-Черногрязская, 14/19</p></bio><bio xml:lang="en"><p>junior researcher at the Glaucoma Department </p><p>14/19, Sadovaya-Chernogryazskaya St., Moscow, 105062</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ ГБ им. Гельмгольца» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Helmholtz National Medical Research Center of Eye Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>19</day><month>05</month><year>2026</year></pub-date><volume>25</volume><issue>2</issue><fpage>11</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петров С.Ю., Павленко Т.А., Лисовская О.А., Маркелова О.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Петров С.Ю., Павленко Т.А., Лисовская О.А., Маркелова О.И.</copyright-holder><copyright-holder xml:lang="en">Petrov S.Y., Pavlenko T.A., Lisovskaya O.A., Markelova O.I.</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.glaucomajournal.ru/jour/article/view/623">https://www.glaucomajournal.ru/jour/article/view/623</self-uri><abstract><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Изучить содержание общего белка и α2-макроглобулина (α2-МГ) в слезной жидкости (СЖ) у пациентов с первичной открытоугольной глаукомой (ПОУГ) в зависимости от возраста, стадии, уровня внутриглазного давления (ВГД) и после выполнения синустрабекулэктомии.</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. Анализ уровня общего белка (мг/мл) и α2-МГ (нмоль/мин×мл) в СЖ проводили у 46 пациентов с ПОУГ I-IV стадий до и спустя 7 дней после синустрабекулоэктомии.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Уровень общего белка в СЖ у пациентов с ПОУГ до операции составил 2,23±0,13 мг/мл. Выявлена тенденция снижения показателя с возрастом (r=0,32) и повышение с прогрессированием глаукомы (r=0,39): I стадия — 1,80±0,14 мг/мл, II — 1,96±0,18 мг/мл, III — 2,81±0,23 мг/мл. После синустрабекулоэктомии ВГД снизилось с 23,5±6,1 до 14,6±4,2 мм рт.ст. Снижение уровня общего белка составило 0,05 мг/мл (с 2,23±0,13 до 2,18±0,24 мм рт.ст.) с корреляцией 0,24. Уровень α2-МГ до операции составил 0,46±0,07 нмоль/ мин×мл без значимой корреляции со стадией глаукомы (r=0,03) и уровнем ВГД (r=-0,26). Выявлена корреляция с возрастом пациентов (r=0,64). Анализ уровня α2-МГ в зависимости от ВГД в динамике продемонстрировал обратную корреляционную зависимость между уровнем ВГД и содержанием α2-МГ до и после операции: снижение ВГД сопровождалось недостоверным повышением уровня α2-МГ на 0,13 нмоль/мин×мл (с 0,46±0,07 до 0,60±0,12 нмоль/мин×мл), r=0,29.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Уровень общего белка в СЖ является важным показателем при ПОУГ, коррелирующим с возрастом и стадией глаукомного процесса. Значимой корреляции уровня α2-МГ в СЖ не было отмечено ни со стадией глаукомного процесса, ни с уровнем ВГД, Хирургическое снижение ВГД сопровождалось снижением уровня общего белка и повышением уровня α2-МГ со слабой корреляционной связью.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>PURPOSE</title><p>PURPOSE. To study the total protein and α2-macroglobulin (α2-MG) levels in the lacrimal fluid (LF) of patients with primary open-angle glaucoma (POAG) depending on age, glaucoma stage, intra-ocular pressure (IOP) levels and after trabeculectomy.</p></sec><sec><title>METHODS</title><p>METHODS. Analysis of the total protein (mg/ml) and α2-MG (nmol/min×ml) levels in LF was performed in 46 patients with POAG stages I–IV before and 7 days after sinus trabeculectomy.</p></sec><sec><title>RESULTS</title><p>RESULTS. The level of total protein in LF in patients with POAG before surgery was 2.23±0.13 mg/ml. A trend toward a decrease with age (r=0.32) and an increase with glaucoma progression (r=0.39) was observed: stage I — 1.80±0.14 mg/ml, stage II — 1.96±0.18 mg/ml, stage III — 2.81±0.23 mg/ml. After sinus trabeculectomy, IOP decreased from 23.5±6.1 to 14.6±4.2 mm Hg. The decrease in the total protein level was 0.05 mg/ml (from 2.23±0.13 to 2.18±0.24 mg/ml), with a correlation coefficient of 0.24. The preoperative α2-MG level was 0.46±0.07 nmol/min×ml, with no significant correlation with glaucoma stage (r=0.03) or IOP level (r=–0.26). A correlation with patient age was identified (r=0.64). Analysis of α2-MG levels in relation to IOP changes over time demonstrated an inverse correlation between IOP and α2-MG levels before and after surgery: a decrease in IOP was accompanied by a non-significant increase in α2-MG of 0.13 nmol/min×ml (from 0.46±0.07 to 0.60±0.12 nmol/min×ml), r=0.29.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The level of total protein in LF is an important parameter in POAG, correlating with patient age and glaucoma stage. No significant correlation of α2-MG level in LF with glaucoma stage or IOP was observed. Surgical IOP reduction was associated with a decrease in total protein level and an increase in α2-MG level, both demonstrating weak correlations.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>глаукома</kwd><kwd>общий белок</kwd><kwd>альфа2- макроглобулин</kwd><kwd>внутриглазное давление</kwd><kwd>синустрабекулоэктомия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>glaucoma</kwd><kwd>total protein</kwd><kwd>alpha-2-macroglobulin</kwd><kwd>intraocular pressure</kwd><kwd>sinus trabeculectomy</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">Tham Y.C., Li X., Wong T.Y., Quigley H.A., Aung T., Cheng C.Y. Global prevalence of glaucoma and projections of glaucoma burden through 2040: a systematic review and meta-analysis. 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