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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2021-65-3-345-354</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-980</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>МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICINE</subject></subj-group></article-categories><title-group><article-title>Экспрессия люмикана при хронических дистрофических заболеваниях роговицы</article-title><trans-title-group xml:lang="en"><trans-title>Lumican expression in chronic degenerative cornea diseases</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>Семак</surname><given-names>Г. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Semak</surname><given-names>G. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семак Галина Романовна – канд. мед. наук, доцент</p><p>пр. Дзержинского, 83, 220116, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Semak Galina R. – Ph. D. (Medicine), Associate professor</p><p>83, Dzerzhinsky Ave., 220116, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">semakgalina@mail.ru</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>Захарова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharava</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Захарова Виктория Алексеевна – канд. мед. наук, доцент</p><p>пр. Дзержинского, 83, 220116, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Zakharava Viktoryia A. – Ph. D. (Medicine), Associate professor</p><p>83, Dzerzhinsky Ave., 220116, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">zakharava.vikt@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>Жерко</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zherka</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жерко Ирина Юрьевна – врач-офтальмолог</p><p>Лесной, 223040, Минский район, Минская обл., Республика Беларусь</p></bio><bio xml:lang="en"><p>Zherka Iryna Yu. – Ophthalmologist</p><p>Lesnoy, 223040, Minsk District, Minsk Region, Republic of Belarus</p></bio><email xlink:type="simple">zherko.irina@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юдин</surname><given-names>П. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Yudin</surname><given-names>P. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юдин Павел Юрьевич – врач-офтальмолог</p><p>ул. Ленина, 30, 220030, Минск, Республика Беларусь</p></bio><bio xml:lang="en"><p>Yudin Pavel Yu. – Ophthalmologist</p><p>30, Lenin Str., 220030, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">yudin2007@icloud.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Республиканский научно-практический центр онкологии и медицинской радиологии им. Н. Н. Александрова</institution></aff><aff xml:lang="en"><institution>N. N. Alexandrov National Cancer Centre of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Третья городская клиническая больница им Е. В. Клумова</institution></aff><aff xml:lang="en"><institution>3rd City Clinical Hospital named after E. V. Klumov</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>15</day><month>07</month><year>2021</year></pub-date><volume>65</volume><issue>3</issue><fpage>345</fpage><lpage>354</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семак Г.Р., Захарова В.А., Жерко И.Ю., Юдин П.Ю., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Семак Г.Р., Захарова В.А., Жерко И.Ю., Юдин П.Ю.</copyright-holder><copyright-holder xml:lang="en">Semak G.R., Zakharava V.A., Zherka I.Y., Yudin P.Y.</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://doklady.belnauka.by/jour/article/view/980">https://doklady.belnauka.by/jour/article/view/980</self-uri><abstract><p>Установлены характер экспрессии люмикана в эксплантах роговиц пациентов с хроническими дистрофическими заболеваниями роговицы, а также изменения его экспрессии на фоне применения инъекционной формы 1 %-ного натрия гиалуроната. В проспективное исследование были включены 37 пациентов с хроническими дистрофическими заболеваниями роговицы: кератопатиями в исходе кератитов (20 случаев) и эндотелиально-эпителиальной дистрофией (17 случаев). Пациенты были разделены на 2 группы. Первая в предоперационном периоде получала курс инъекций 1 %-ного низкомолекулярного натрия гиалуроната, вторая не получала дополнительного лечения. Всем включенным в исследование пациентам была выполнена сквозная кератопластика. Выполнено иммуногистохимическое исследование роговичных эксплантов с использованием первичных моноклональных антител к люмикану с последующей морфометрической оценкой препаратов. Рассчитывались доля пикселей с высокой и умеренной интенсивностью и индекс интенсивности экспрессии в иммунопозитивных участках. В группе пациентов с агрессивными кератитами интенсивность экспрессии люмикана как в эпителии, так и строме роговицы была статистически значимо выше по сравнению с группой контроля и снижалась на фоне применения 1 %-ного низкомолекулярного натрия гиалуроната. При формировании бельма экспрессия люмикана как в эпителии, так и в строме роговицы была сопоставима с таковой в группе контроля с более высокими параметрами эпителиальной экспрессии на фоне применения натрия гиалуроната. В группах эндотелиально-эпителиальных дистрофий отмечалось повышение интенсивности экспрессии на фоне применения натрия гиалуроната. Отмеченное повышение эпителиальной экспрессии люмикана на фоне выраженной альтерации сопровождается постепенным ее снижением по мере завершения регенерации. Важным фактором является его нормальное содержание в строме роговицы, поскольку как резкое повышение, так и низкие параметры экспрессии сопровождаются снижением прозрачности роговицы.</p></abstract><trans-abstract xml:lang="en"><p>The pattern of lumican expression in corneal explants of patients with chronic dystrophic cornea diseases and the changes in its expression after 1 % sodium hyaluronate expression are established. The prospective study included 37 patients with chronic dystrophic diseases of the cornea: keratopathies in the outcome of keratitis (20 cases) and endothelial-epithelial dystrophy (17 cases). The patients were divided into 2 groups. The first group in the preoperative period received the injections of 1 % low molecular weight sodium hyaluronate, the second group did not receive additional treatment. All patients included in the study underwent penetrating keratoplasty. The immunohistochemical study of corneal explants was performed using primary monoclonal antibodies to lumican with subsequent morphometric evaluation of the preparations. The proportion of pixels with high and moderate intensity and the index of expression intensity in immunopositive regions were calculated. In the group of patients with aggressive keratitis, the intensity of lumican expression both in the epithelium and in the corneal stroma was statistically significantly higher than in the control group and decreased with the use of 1 % low molecular weight sodium hyaluronate. After the leukoma formation, the expression of lumican both in the epithelium and in the corneal stroma was comparable to that in the control group with higher parameters of epithelial expression after sodium hyaluronate administration. In the groups of endothelial-epithelial dystrophy, an increase in the intensity of expression was noted after sodium hyaluronate injections. The noted increase in the epithelial expression of lumican against the background of pronounced alteration is accompanied by its gradual decrease as the regeneration is completed. An important factor is its normal content in the corneal stroma, since both a sharp increase and low expression parameters are accompanied by a decrease in corneal transparency.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кератит</kwd><kwd>эндотелиально-эпителиальная дистрофия</kwd><kwd>люмикан</kwd><kwd>натрия гиалуронат</kwd><kwd>иммуногистохимия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>keratitis</kwd><kwd>endothelial-epithelial dystrophy</kwd><kwd>lumikan</kwd><kwd>sodium hyaluronate</kwd><kwd>immunohistochemistry</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">Особенности экспрессии биомолекулярных маркеров в оценке эффективности лечения дистрофических заболеваний роговицы на фоне глаукомы [Электронный ресурс] / Г. Р. 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