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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">10.25700/NJG.2020.03.01</article-id><article-id custom-type="elpub" pub-id-type="custom">glaucoma-279</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>Сравнительный химический анализ внутриглазной жидкости и тканей дренажной зоны глаза при первичной открытоугольной глаукоме</article-title><trans-title-group xml:lang="en"><trans-title>Changes in the elemental composition of aqueous humour outflow pathways in primary open-angle glaucoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кравчик</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kravchik</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кравчик Марина Владимировна, младший научный сотрудник</p><p>119021, Москва, ул. Россолимо, 11А</p></bio><bio xml:lang="en"><p>Junior Research Associate</p><p>11A Rossolimo st., Moscow, 119021</p></bio><email xlink:type="simple">kravchik.mv@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старший научный сотрудник</p><p>119021, Москва, ул. Россолимо, 11А</p></bio><bio xml:lang="en"><p>Senior Research Associate</p><p>11A Rossolimo st., Moscow, 119021</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суббот</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Subbot</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат медицинских наук, старший научный сотрудник </p><p>119021, Москва, ул. Россолимо, 11А</p></bio><bio xml:lang="en"><p>Ph.D., Senior Research Associate</p><p>11A Rossolimo st., Moscow, 119021</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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>Доктор медицинских наук, главный научный сотрудник </p><p>119021, Москва, ул. Россолимо, 11А</p></bio><bio xml:lang="en"><p>Med.Sc.D., Leading Research Associate</p><p>11A Rossolimo st., Moscow, 119021</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пахомова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pakhomova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Врач-офтальмолог</p><p>119021, Москва, ул. Россолимо, 11А</p></bio><bio xml:lang="en"><p>M.D.</p><p>11A Rossolimo st., Moscow, 119021</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Подопригора</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Podoprigora</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат медицинских наук, ассистент кафедры офтальмологии</p><p>394036, Воронеж, ул. Студенческая, 10</p></bio><bio xml:lang="en"><p>Ph.D., Assistent of Ophtalmology Department</p><p> </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБНУ «НИИ глазных болезней»<country>Россия</country></aff><aff xml:lang="en">Scientific Research Institute of Eye Diseases<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБОУ ВО «Воронежский государственный медицинский университет им Н.Н. Бурденко»<country>Россия</country></aff><aff xml:lang="en">The State Budgetary Institution of Higher Professional Education “Voronezh State Medical University named after N.N. Burdenko” of the Ministry of Public Health of the Russian Federation<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2020</year></pub-date><volume>19</volume><issue>3</issue><fpage>3</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кравчик М.В., Новиков И.А., Суббот А.М., Петров С.Ю., Пахомова Н.А., Подопригора В.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Кравчик М.В., Новиков И.А., Суббот А.М., Петров С.Ю., Пахомова Н.А., Подопригора В.С.</copyright-holder><copyright-holder xml:lang="en">Kravchik M.V., Novikov I.A., Subbot A.M., Petrov S.Y., Pakhomova N.A., Podoprigora V.S.</copyright-holder><license 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/279">https://www.glaucomajournal.ru/jour/article/view/279</self-uri><abstract><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Провести сравнительный химический анализ внутриглазной жидкости (ВГЖ), склеры и трабекулы при первичной открытоугольной глаукоме (ПОУГ). Оценить химический состав тканей при различных стадиях ПОУГ, а также при псевдоэксфолиативной глаукоме (ПЭГ).</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. Определено содержание ряда химических элементов: углерода (С), азота (N), кислорода (O), алюминия (Al), кальция (Са), хлора (Cl), калия (К), магния (Mg), натрия (Na), фосфора (P), кремния (Si), серы (S) в сухом веществе ВГЖ, биоптатах трабекулярной ткани и склеры у пациентов со II и III стадиями ПОУГ, а также у пациентов с ПЭГ и ПОУГ без псевдоэксфолиативного материала. Визуализация проводилась с помощью сканирующего электронного микроскопа (СЭМ) ЕVO LS 10 («Zeiss», Германия), исследование химического состава осуществлялось на энергодисперсионном спектрометре (ЭДС) Oxford-X-MAX-50 («Oxford», Великобритания) в режиме низкого вакуума (70 Па) при ускоряющем напряжении 21,5 кВ.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Выявлены различия в распределении Сl в сухом веществе ВГЖ и Si в трабекуле у пациентов со II и III стадиями ПОУГ. При сравнительном анализе тканей пациентов с ПЭГ и ПОУГ без псевдоэксфолиативного материала (ПЭМ) показано различие в распределении N сухого вещества ВГЖ, а также Ca, Cl, Na трабекулы. При сравнительном анализе элементного состава склеры между указанными группами статистически значимых различий в распределении исследуемых элементов выявлено не было.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Изменения, выявленные при сравнении II и III стадий ПОУГ, могут свидетельствовать о нарастании электролитного и кислотно-основного дисбаланса при прогрессировании заболевания. Отличия в распределении элементов между группами ПОУГ без ПЭМ и ПЭГ обусловлены молекулярным строением ПЭМ. Различия в водно-солевом и молекулярно-химическом составе тканей следует учитывать в дальнейших исследованиях, направленных на поиск оптимального медикаментозного метода лечения пациентов с разными стадиями и формами глаукомы.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>PURPOSE</title><p>PURPOSE: There are two primary aims of this study:</p></sec><sec><title>1</title><p>1. To perform a comparative chemical analysis of aqueous humour (AH), scleral tissue, and trabecular meshwork in patients with primary open-angle glaucoma (POAG).</p></sec><sec><title>2</title><p>2. To evaluate the tissue’s chemical composition at the different POAG stages and with in patients with pseudoexfoliation glaucoma (PEG).</p></sec><sec><title>METHODS</title><p>METHODS: The concentration of certain chemical elements — carbon (C), nitrogen (N), oxygen (O), aluminum (Al), calcium (Ca), chlorine (Cl), potassium (K), magnesium (Mg), sodium (Na), phosphorus (P), silicon (Si), sulfur (S) — was determined in the dried AH residue, trabecular meshwork and sclera biopsy samples obtained from patients with POAG (stage I and II), patients with pseudoexfoliation glaucoma (PEG), and patients with POAG without pseudoexfoliation material (PEM). Samples were analyzed using a scanning electron microscope (SEM) EVO LS 10 (“Zeiss”,Germany). The chemical composition study was performed with an energy-dispersive spectrometer (EDS) Oxford-XMAX-50 (“Oxford”,UK) in a low-vacuum mode (70 Pa) with an accelerating voltage of 21.5 kV.</p></sec><sec><title>RESULTS</title><p>RESULTS: In the case of POAG (stage I and II) patients, there were significant differences in Cl distribution in dried AH residue and Si distribution in the trabecular meshwork. In the case of pseudoexfoliative glaucoma (PEG) and patients with POAG without PEM, there was a difference in the N distribution in dried AH residue, as well as Ca, Cl, and Na distribution in the trabecular meshwork. During scleral tissue comparative chemical analysis, no significant changes in studied elements’ concentration between patient groups were evident.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION: Changes between stage II of POAG and stage III of POAG patient groups may indicate that there is an increase in the electrolyte and acid-base imbalance associated with the progression of the disease. Differences in chemical elements distribution in patients with PEG and in patients with POAG without PEM result from the molecular structure of PEM. The tissue’s water and salt balance and molecular chemical composition alterations provide the following insights for future research in finding the optimal treatment method for patients with all stages and types of glaucoma.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>первичная открытоугольная глаукома</kwd><kwd>псевдоэксфолиативная глаукома</kwd><kwd>энергодисперсионная спектроскопия</kwd><kwd>элементный состав</kwd><kwd>внутриглазная жидкость</kwd><kwd>трабекулярная ткань</kwd><kwd>склера.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>primary open-angle glaucoma</kwd><kwd>pseudoexfoliation glaucoma</kwd><kwd>energy-dispersive X-ray spectroscopy</kwd><kwd>elemental composition</kwd><kwd>aqueous humour</kwd><kwd>trabecular meshwork</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">Tauber F.W., Krause A.C. 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