<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20260304</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-2971</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>Особенности ультраструктурной организации роговицы крыс после ультрафиолетового кросслинкинга</article-title><trans-title-group xml:lang="en"><trans-title>Features of ultrastructural organization of the rat cornea after corneal crosslinking</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9476-8883</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бикбов</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bikbov</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бикбов Мухаррам Мухтарамович, д.м.н., проф.</p><p>450080, г. Уфа, ул. Пушкина, 90</p></bio><bio xml:lang="en"><p>Mukharram М. Bikbov, doctor of medical sciences, professor</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">niipriem@yandex.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/0000-0001-7470-7330</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Халимов</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khalimov</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Халимов Азат Рашидович, д.б.н.</p><p>450080, г. Уфа, ул. Пушкина, 90</p></bio><bio xml:lang="en"><p>Azat R. Khalimov, doctor of biological sciences</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">azrakhal@yandex.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/0000-0001-8475-531X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевчук</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevchuk</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шевчук Наталья Евгеньевна, д.б.н.</p><p>450080, г. Уфа, ул. Пушкина, 90</p></bio><bio xml:lang="en"><p>Natalya E. Shevchuk, doctor of biological sciences</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">ufaeyenauka@mail.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/0000-0002-9170-2600</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебедева Анна Ивановна, д.б.н.</p><p>450075, г. Уфа, ул. Рихарда Зорге, 67/1</p></bio><bio xml:lang="en"><p>Anna I. Lebedeva, doctor of biological sciences</p><p>450075, Ufa, Rikharda Zorge st., 67/1</p></bio><email xlink:type="simple">jeol02@mail.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/0000-0003-1237-9284</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мусина</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Musina</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мусина Ляля Ахияровна, д.б.н.</p><p>450075, г. Уфа, ул. Рихарда Зорге, 67/1</p></bio><bio xml:lang="en"><p>Lyalya A. Musina, doctor of biological sciences</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">morphoplant@mail.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/0000-0002-0583-013X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гилемзянова</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gilemzyanova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гилемзянова Лейсан Ильшатовна</p><p>450080, г. Уфа, ул. Пушкина, 90</p></bio><bio xml:lang="en"><p>Leysan I. Gilemzyanova</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">gileisan@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/0000-0002-1811-9320</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Валишин</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Valishin</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валишин Искандер Дамирович</p><p>450080, г. Уфа, ул. Пушкина, 90</p></bio><bio xml:lang="en"><p>Iskander D. Valishin</p><p>450080, Ufa, Pushkina st., 90</p></bio><email xlink:type="simple">iskander0796@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Башкирский государственный медицинский университет Минздрава России, Уфимский НИИ глазных болезней</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State Medical University of Minzdrav of Russia, Ufa Eye Research Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Башкирский государственный медицинский университет Минздрава России, Всероссийский центр глазной и пластической хирургии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State Medical University of Minzdrav of Russia, Russian Center for Eye and Plastic Surgery</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2026</year></pub-date><volume>46</volume><issue>3</issue><fpage>40</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бикбов М.М., Халимов А.Р., Шевчук Н.Е., Лебедева А.И., Мусина Л.А., Гилемзянова Л.И., Валишин И.Д., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Бикбов М.М., Халимов А.Р., Шевчук Н.Е., Лебедева А.И., Мусина Л.А., Гилемзянова Л.И., Валишин И.Д.</copyright-holder><copyright-holder xml:lang="en">Bikbov M.M., Khalimov A.R., Shevchuk N.E., Lebedeva A.I., Musina L.A., Gilemzyanova L.I., Valishin I.D.</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://sibmed.elpub.ru/jour/article/view/2971">https://sibmed.elpub.ru/jour/article/view/2971</self-uri><abstract><p>Ультрафиолетовый (УФ) кросслинкинг (сшивание) роговицы – метод лечения прогрессирующих дегенераций роговой оболочки, в частности, кератоконуса. Данная технология предполагает воздействие на роговицу УФ-излучения (370 нм) с фотосенсибилизатором (рибофлавин), которое индуцирует внутри- и межфибриллярные сшивки в волокнах коллагена. К настоящему времени остаются востребованными исследования, направленные на изучение фундаментальных аспектов этой технологии, в частности, изменений, происходящих в роговице на ультраструктурном уровне. Цель исследования – выявить особенности ультраструктурной организации роговицы крысы после стандартного УФ-кросслинкинга с рибофлавином и декстраном.Материал и методы. Эксперименты проведены на 10 крысах (20 глаз) в двух группах: 1-я – интактная (контроль), 2-я – опытная, где проведен стандартный с деэпителизацией УФ-кросслинкинг с раствором рибофлавина и декстрана. УФ-облучение (3 мВт/см2, 10 мин) выполняли с помощью устройства «УФалинк» с длиной волны 370 нм. Срок наблюдения – 14 и 30 сут. Материал для гистологического и электронно-микроскопического исследования готовили по традиционной методике.Результаты. Установлено, что структура переднего эпителия роговицы после УФ-кросслинкинга была полностью восстановлена. Эпителиальные клетки базального слоя посредством полудесмосом прикреплялись к передней пограничной пластинке, наблюдаемой в виде однородной полосы средней оптической плотности. Определялись кератоциты, сохранившие свою целостность. Коллагеновые волокна стромальной пластинки компактно лежали ровными параллельными рядами, их внешний вид в целом не отличался от морфологический картины интактных животных, при этом отмечались участки стромы с признаками уплотненности. Эндотелий визуализировали в виде монослоя из светлых клеток с темными ядрами на десцеметовой мембране. На некоторых гистопрепаратах клетки заднего эпителия роговицы имели в цитоплазме признаки проявления слабых дистрофических изменений в виде вакуолизации отдельных митохондрий, возможно, являющихся следствием УФ-облучения роговой оболочки.Заключение. Гистологические и электронно-микроскопические исследования роговицы крысы после УФ-кросслинкинга показали отсутствие выраженных патологических изменений в структурах роговой оболочки глаза. Роговица опытных глаз крыс практически полностью восстановилась в течение месяца и имела участки с признаками уплотнения коллагеновой структуры.</p></abstract><trans-abstract xml:lang="en"><p>Corneal crosslinking (CXL) is a method of treating progressive corneal degenerations, in particular, keratoconus. This technology involves exposing the cornea to UV radiation (370 nm) with a photosensitizing agent (riboflavin). CXL induces formation of intra and interfibrillary bonds in collagen fibers. The effectiveness of CXL has been confirmed by numerous clinical observations. However, research aimed at studying the fundamental aspects of this technology, in particular, changes occurring in the cornea at the ultrastructural level, remains in demand. Aim of the study was to identify features of the ultrastructural organization of the rat cornea after standard CXL with riboflavin and dextran.Material and methods. The trials were conducted on 10 rats (20 eyes) in 2 groups: 1st – intact (control), 2nd – experimental, where standard CXL with riboflavin and dextran solution was performed. UV irradiation (3 mW/cm2, 10 min) was performed using «UFalink» device (370 nm). The observation period – 14 and 30 days. The material for histological and electron microscopic examination was prepared using the traditional method.Results. The structure of the anterior corneal epithelium was completely restored after CXL. Keratocytes that had retained their integrity were identified. The collagen fibers of the stromal lamellae were compactly arranged in even, parallel rows and, in their overall appearance, did not differ from the morphological picture in intact animals; however, areas of the stroma with signs of increased density were noted. The endothelium was visualized as a monolayer of light cells with dark nuclei on the Descemet’s membrane. In some histology specimens, the cells of the corneal endothelium showed signs of mild dystrophic changes in the cytoplasm, such as vacuolation of individual mitochondria, possibly resulting from UV exposure to the cornea.Conclusions. Histological and electron microscopic examination of the rat cornea after CXL showed no pronounced pathological changes in the corneal structures. The rat corneas restored almost completely within one month and exhibited areas with signs of collagen structure densification.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ультрафиолетовый кросслинкинг роговицы</kwd><kwd>морфологические исследования роговицы</kwd><kwd>ультраструктурный анализ роговицы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>corneal crosslinking</kwd><kwd>morphological studies of the cornea</kwd><kwd>ultrastructural analysis of the cornea</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">Wollensak G., Spoerl E., Seiler T. Riboflavin/ultravioleta-induced collagen crosslinking for the treatment of keratoconus. Am. J. Ophthal. 2003;135(5):620‒627. doi: 10.1016/s0002-9394(02)02220-1</mixed-citation><mixed-citation xml:lang="en">Wollensak G., Spoerl E., Seiler T. Riboflavin/ultravioleta-induced collagen crosslinking for the treatment of keratoconus. Am. J. Ophthal. 2003;135(5):620‒627. doi: 10.1016/s0002-9394(02)02220-1</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Papachristoforou N., Ueno A., Ledwos K., Bartus J., Nowinska A., Karska-Basta I. A review of keratoconus cross-linking treatment methods. J. Clin. Med. 2025;14(5):1702. doi: 10.3390/jcm14051702</mixed-citation><mixed-citation xml:lang="en">Papachristoforou N., Ueno A., Ledwos K., Bartus J., Nowinska A., Karska-Basta I. A review of keratoconus cross-linking treatment methods. J. Clin. Med. 2025;14(5):1702. doi: 10.3390/jcm14051702</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Hafezi F., Kling S., Hafezi N.L., Aydemir M.E., Lu N.J., Hillen M., Knyazer B., Awwad S., Mazzotta C., Kollros L., Torres-Netto E.A. Corneal cross-linking. Prog. Retin. Eye Res. 2025;104:101322. doi: 10.1016/j.preteyeres.2024.101322</mixed-citation><mixed-citation xml:lang="en">Hafezi F., Kling S., Hafezi N.L., Aydemir M.E., Lu N.J., Hillen M., Knyazer B., Awwad S., Mazzotta C., Kollros L., Torres-Netto E.A. Corneal cross-linking. Prog. Retin. Eye Res. 2025;104:101322. doi: 10.1016/j.preteyeres.2024.101322</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Bui A.D., Truong A., Pasricha N.D., Indaram M. Keratoconus diagnosis and treatment: recent advances and future directions. Clin. Ophthalmol. 2023;17:2705‒2718. doi: 10.2147/OPTH.S392665</mixed-citation><mixed-citation xml:lang="en">Bui A.D., Truong A., Pasricha N.D., Indaram M. Keratoconus diagnosis and treatment: recent advances and future directions. Clin. Ophthalmol. 2023;17:2705‒2718. doi: 10.2147/OPTH.S392665</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Gustafsson I., Olafsdottir T., Neumann O., Johansson P., Bizios D., Ivarsen A., Hjortdal J. Early findings in a randomised controlled trial on crosslinking protocols using isoosmolar and hypoosmolar riboflavin for the treatment of progressive keratoconus. Acta Ophthal. 2025;103(1):23‒32. doi: 10.1111/aos.16736</mixed-citation><mixed-citation xml:lang="en">Gustafsson I., Olafsdottir T., Neumann O., Johansson P., Bizios D., Ivarsen A., Hjortdal J. Early findings in a randomised controlled trial on crosslinking protocols using isoosmolar and hypoosmolar riboflavin for the treatment of progressive keratoconus. Acta Ophthal. 2025;103(1):23‒32. doi: 10.1111/aos.16736</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Bikbova G., Kazakbaeva G., Bikbov M., Usubov E. Complete corneal ring (myoring) implantation versus myoring implantation combined with corneal collagen crosslinking for keratoconus: 3-year follow-up. Intern. Ophthal. 2017;37(3):1285‒1293. doi: 10.1007/s10792-017-0593-4</mixed-citation><mixed-citation xml:lang="en">Bikbova G., Kazakbaeva G., Bikbov M., Usubov E. Complete corneal ring (myoring) implantation versus myoring implantation combined with corneal collagen crosslinking for keratoconus: 3-year follow-up. Intern. Ophthal. 2017;37(3):1285‒1293. doi: 10.1007/s10792-017-0593-4</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kandel H., Abbondanza M., Gupta A., Mills R., Watson A.S., Petsoglou C., Kerdraon Y., Watson S.L. Comparison of standard versus accelerated corneal collagen cross-linking for keratoconus: 5-year outcomes from the Save Sight Keratoconus Registry. Eye (Lond). 2024;38(1):95‒102. doi: 10.1038/s41433-023-02641-6</mixed-citation><mixed-citation xml:lang="en">Kandel H., Abbondanza M., Gupta A., Mills R., Watson A.S., Petsoglou C., Kerdraon Y., Watson S.L. Comparison of standard versus accelerated corneal collagen cross-linking for keratoconus: 5-year outcomes from the Save Sight Keratoconus Registry. Eye (Lond). 2024;38(1):95‒102. doi: 10.1038/s41433-023-02641-6</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Raiskup F., Herber R., Lenk J., Pillunat L.E., Spoerl E. Crosslinking with UV-A and riboflavin in progressive keratoconus: From laboratory to clinical practice ‒ Developments over 25 years. Prog. Retin. Eye Res. 2024;102:101276. doi: 10.1016/j.preteyeres.2024.101276</mixed-citation><mixed-citation xml:lang="en">Raiskup F., Herber R., Lenk J., Pillunat L.E., Spoerl E. Crosslinking with UV-A and riboflavin in progressive keratoconus: From laboratory to clinical practice ‒ Developments over 25 years. Prog. Retin. Eye Res. 2024;102:101276. doi: 10.1016/j.preteyeres.2024.101276</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Serrao S., Lombardo G., Lombardo M. Adverse events after riboflavin/UV-A corneal cross-linking: A literature review. Int Ophthal. 2022;42(1):337‒348. doi: 10.1007/s10792-021-02019-1</mixed-citation><mixed-citation xml:lang="en">Serrao S., Lombardo G., Lombardo M. Adverse events after riboflavin/UV-A corneal cross-linking: A literature review. Int Ophthal. 2022;42(1):337‒348. doi: 10.1007/s10792-021-02019-1</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Yang Q.H., Liu A.Q., Zhang J.X., Pan S.H., Wang L.L., Huang G.Y., Shi H. Early histological changes detected by confocal microscopy in patients with advanced keratoconus receiving collagen cross-linking therapy. Zhonghua Yan Ke Za Zhi. 2022;58(2):112‒119. doi: 10.3760/cma.j.cn112142-20210912-00423</mixed-citation><mixed-citation xml:lang="en">Yang Q.H., Liu A.Q., Zhang J.X., Pan S.H., Wang L.L., Huang G.Y., Shi H. Early histological changes detected by confocal microscopy in patients with advanced keratoconus receiving collagen cross-linking therapy. Zhonghua Yan Ke Za Zhi. 2022;58(2):112‒119. doi: 10.3760/cma.j.cn112142-20210912-00423</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Schulz D., Iliev M.E., Frueh B.E., Goldblum D. In vivo pachymetry in normal eyes of rats, mice and rabbits with the optical low coherence reflectometer. Vis. Res. 2003;43(6):723‒728. doi: 10.1016/s0042-6989(03)00005-1</mixed-citation><mixed-citation xml:lang="en">Schulz D., Iliev M.E., Frueh B.E., Goldblum D. In vivo pachymetry in normal eyes of rats, mice and rabbits with the optical low coherence reflectometer. Vis. Res. 2003;43(6):723‒728. doi: 10.1016/s0042-6989(03)00005-1</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
