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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">Journal of Clinical Practice</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Clinical Practice</journal-title><trans-title-group xml:lang="ru"><trans-title>Клиническая практика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-3095</issn><issn publication-format="electronic">2618-8627</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">626774</article-id><article-id pub-id-type="doi">10.17816/clinpract626774</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">The effect of intravitreal antiangiogenic diabetic macular edema treatment on the corneal endothelium cell count</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние интравитреального введения антиангиогенного препарата на эндотелий роговицы при лечении диабетического макулярного отёка</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-5562-0561</contrib-id><name-alternatives><name xml:lang="en"><surname>Amirkulieva</surname><given-names>Regina N.</given-names></name><name xml:lang="ru"><surname>Амиркулиева</surname><given-names>Регина Нуреддиновна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Graduate Student, Junior Research Associate</p></bio><bio xml:lang="ru"><p>аспирант, мл. науч. сотр.</p></bio><email>regina-amirkulieva@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4460-3968</contrib-id><contrib-id contrib-id-type="spin">2200-0320</contrib-id><name-alternatives><name xml:lang="en"><surname>Khomyakova</surname><given-names>Elena N.</given-names></name><name xml:lang="ru"><surname>Хомякова</surname><given-names>Елена Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Associate Professor</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент</p></bio><email>veritas.elena@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0057-3338</contrib-id><contrib-id contrib-id-type="spin">5845-6058</contrib-id><name-alternatives><name xml:lang="en"><surname>Loskutov</surname><given-names>Igor A.</given-names></name><name xml:lang="ru"><surname>Лоскутов</surname><given-names>Игорь Анатольевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD</p></bio><bio xml:lang="ru"><p>д-р мед. наук</p></bio><email>loskoutigor@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6665-5657</contrib-id><name-alternatives><name xml:lang="en"><surname>Agammedov</surname><given-names>Mushviq B.</given-names></name><name xml:lang="ru"><surname>Агаммедов</surname><given-names>Мушвиг Балами оглы</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>mushviqagammedov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow Regional Research and Clinical Institute</institution></aff><aff><institution xml:lang="ru">Московский областной научно-исследовательский клинический институт имени М.Ф. Владимирского</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2024-06-22" publication-format="electronic"><day>22</day><month>06</month><year>2024</year></pub-date><pub-date date-type="pub" iso-8601-date="2024-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2024</year></pub-date><volume>15</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>20</fpage><lpage>28</lpage><history><date date-type="received" iso-8601-date="2024-02-11"><day>11</day><month>02</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-06-05"><day>05</day><month>06</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Эко-Вектор</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</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-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://clinpractice.ru/clinpractice/article/view/626774">https://clinpractice.ru/clinpractice/article/view/626774</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Antiangiogenic treatment of diabetic macular edema is a first-line therapy in modern ophthalmology. Novel antiangiogenic drugs are increasingly being developed to improve treatment results and solve certain issues. However, owing to the advent of new drugs, more questions arise about their effect on the patient’s retina and other structures of the eye, such as the cornea.</p> <p><bold>AIM:</bold> The study aimed to investigate the effect of intravitreal administration of the anti-VEGF drug brolucizumab on the corneal endothelium in patients with diabetic macular edema.</p> <p><bold>METHODS:</bold> 106 patients (106 eyes) were included in the prospective study: 31 men and 75 women. The main group consisted of 56 patients (56 eyes) were included in the prospective study: 14 men and 42 women with different stages of diabetic retinopathy with diabetic macular edema, the average age of patients was 62.2±8.4 years. The average number of endothelial cells per 1 mm<sup>2</sup> in these patients before the loading dose of brolucizumab was 2378.9±393.3 cl/mm<sup>2</sup>. The control group included 50 patients (50 eyes) without diabetes who did not receive intravitreal injections or any other surgical interventions on the examined eye for 1 year. All patients underwent endothelial microscopy using the Tomey EM-4000 endothelial microscope (REN 2017/6294), estimated: CD (the number of endothelial cells per 1 mm<sup>2</sup>); CCT (the central thickness of the cornea, microns); CV (the coefficient of variation, %); 6A (the proportion of hexagonal cells, %). All study participants received intravitreal injections of brolucizumab in a volume of 0.05 ml (5 injections with an interval of 6 weeks).</p> <p><bold>RESULTS:</bold> In the main group before intravitreal injections, the indices of the central corneal thickness and the number of endothelial cells per 1 mm<sup>2</sup> were 549.7±30.1 microns and 2378.9±393.3 cells/mm<sup>2</sup>, respectively. After a course of antiangiogenic diabetic macular edema therapy, the central thickness of the cornea was 548.2±30.6 microns, and the number of endothelial cells per 1 mm<sup>2</sup> was 2382.3±424.9 cells/mm<sup>2</sup>. The indicators CV (coefficient of variability, %) and 6A (proportion of hexagonal cells, %) before the start of intravitreal injections were 36.9±5% and 46.8±6.3%, respectively, after the introduction of the loading dose drugs, the average values were 37.9±4.3% and 45.8±6.3%. Changes in all indicators were not static significant.</p> <p><bold>CONCLUSION:</bold> The use of brolucizumab as therapy in patients with diabetic macular edema did not cause a negative effect on the cornea, there were no statistically significant changes in the central thickness of the cornea, the number of endothelial cells per 1 mm<sup>2</sup>, the coefficient of variation and the proportion of hexagonal cells.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> В современной офтальмологии антиангиогенное лечение диабетического макулярного отёка является терапией первой линии. Создаётся всё больше новых антиангиогенных препаратов с целью улучшения результатов лечения. Вместе с тем с развитием антиангиогенной терапии встаёт вопрос о её влиянии не только на сетчатку, но и на другие структуры глаза пациента, например, роговицу.</p> <p><bold>Цель исследования</bold> — изучить влияние интравитреального введения анти-VEGF препарата бролуцизумаба на эндотелий роговицы у пациентов с диабетическим макулярным отёком.</p> <p><bold>Методы.</bold> В проспективное исследование включено 106 пациентов (31 мужчина, 75 женщин; 106 глаз). Основную группу составили 56 пациентов (14 мужчин, 42 женщины; 56 глаз) с разными стадиями диабетической ретинопатии и диабетическим макулярным отёком; средний возраст пациентов 62,2±8,4 года; средний показатель количества эндотелиальных клеток на 1 мм<sup>2</sup> до проведения загрузочной дозы препарата 2378,9±393,3 кл/мм<sup>2</sup>. В группу контроля вошло 50 пациентов (50 глаз) без сахарного диабета, которые в течение 1 года не получали интравитреальных инъекций и любых других хирургических вмешательств на исследуемом глазу. Всем пациентам проведена эндотелиальная микроскопия с применением эндотелиального микроскопа Tomey EM-4000 (РЗН 2017/6294), оценивались следующие параметры: количество эндотелиальных клеток на 1 мм<sup>2</sup> (CD, кл/мм<sup>2</sup>); центральная толщина роговицы (CCT, мкм); коэффициент вариативности (CV, %); доля гексагональных клеток (6A, %). Всем участникам исследования проведены интравитреальные инъекции бролуцизумаба в объёме 0,05 мл (5 инъекций с интервалом 6 недель).</p> <p><bold>Результаты.</bold> В основной группе до проведения интравитреальных инъекций показатели центральной толщины роговицы и количества эндотелиальных клеток на 1 мм<sup>2</sup> составляли 549,7±30,1 мкм и 2378,9±393,3 кл/мм<sup>2</sup> соответственно. После курса антиангиогенной терапии диабетического макулярного отёка центральная толщина роговицы составила 548,2±30,6 мкм, а количество эндотелиальных клеток на 1 мм<sup>2</sup> — 2382,3±424,9 кл/мм<sup>2</sup>. Показатели коэффициента вариабельности (CV, %) и доля гексагональных клеток (6A, %) до начала процедур интравитреальных инъекций составляли в среднем 36,9±5% и 46,8±6,3%, после введения загрузочной дозы препарата — 37,9±4,3% и 45,8±6,3% соответственно. Изменения всех показателей не были статически значимыми.</p> <p><bold>Заключение.</bold> Применение бролуцизумаба у пациентов с диабетическим макулярным отёком не вызывало негативного воздействия на роговицу; статистически значимые изменения центральной толщины роговицы, количества эндотелиальных клеток на 1 мм<sup>2</sup>, коэффициента вариабельности и доли гексагональных клеток отсутствовали.</p></trans-abstract><kwd-group xml:lang="en"><kwd>diabetic retinopathy</kwd><kwd>macular edema</kwd><kwd>antiangiogenic inhibitors</kwd><kwd>brolucizumab</kwd><kwd>endothelial cells, corneal endothelium</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>диабетическая ретинопатия</kwd><kwd>диабетический макулярный отёк</kwd><kwd>антиангиогенная терапия</kwd><kwd>бролуцизумаб</kwd><kwd>эндотелиальные клетки</kwd><kwd>эндотелий роговицы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lazzaro DR, McFarlane SI. 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