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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">ophthalmology</journal-id><journal-title-group><journal-title xml:lang="ru">Офтальмология</journal-title><trans-title-group xml:lang="en"><trans-title>Ophthalmology in Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-5095</issn><issn pub-type="epub">2500-0845</issn><publisher><publisher-name>Ophthalmology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18008/1816-5095-2016-2-111-114</article-id><article-id custom-type="elpub" pub-id-type="custom">ophthalmology-308</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>КЛИНИЧЕСКИЕ И ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL &amp; EXPERIMENTAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Изменение биомеханических свойств роговицы после модифицированного трансэпителиального кросслинкинга</article-title><trans-title-group xml:lang="en"><trans-title>Changes in biomechanical properties of the cornea after modified transepithelial crosslinking</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>Медведев</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedev</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, кафедра офтальмологии ФДПО ГБОУ ВПО РНИМУ им. Н. И. Пирогова Минздрава России, ул. Островитянова д. 1, г. Москва, 117997, Российская Федерация</p></bio><bio xml:lang="en"><p>MD, opthalmology department of Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow, 117997, Russia</p></bio><email xlink:type="simple">glazmed@list.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>Евграфов</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Evgrafov</surname><given-names>V. Ju.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, кафедра офтальмологии ФДПО ГБОУ ВПО РНИМУ им. Н. И. Пирогова Минздрава России, ул. Островитянова д. 1, г. Москва, 117997, Российская Федерация</p></bio><bio xml:lang="en"><p>M. D. Ph.D., opthalmology department of Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow, 117997, Russia</p></bio><email xlink:type="simple">evgrafov@lidt.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>Багров</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bagrov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н. ООО «Центр глазной хирургии», ул. Пречистенка 40 / 2, стр.1, Москва, 119034, Российская Федерация</p></bio><bio xml:lang="en"><p>PhD, LLC «Eye surgery center», Prechistenka str.1, Moscow, 119034, Russia</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кемов</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kemov</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-офтальмолог, «Центр глазной хирургии», ул. Пречистенка 40 / 2, стр.1, Москва, 119034, Российская Федерация</p></bio><bio xml:lang="en"><p>ophthalmologist, LLC «Eye surgery center», Prechistenka str.1, Moscow, 119034, Russia</p></bio><email xlink:type="simple">rukemov@inbox.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дергачева</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Dergacheva</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, кафедра офтальмологии ФДПО ГБОУ ВПО РНИМУ им. Н. И. Пирогова Минздрава России, ул. Островитянова д. 1, г. Москва, 117997, Российская Федерация</p></bio><bio xml:lang="en"><p>postgraduate, opthalmology department of Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow, 117997, Russia</p></bio><email xlink:type="simple">deb20052005@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФДПО ГБОУ ВПО РНИМУ им. Н. И. Пирогова Минздрава России, ул. Островитянова 1, Москва, 117997, Российская Федерация</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow, 117997, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФДПО ГБОУ ВПО РНИМУ им. Н. И. Пирогова Минздрава России, ул. Островитянова 1, Москва, 117997, Российская Федерация</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC «Eye surgery center», Prechistenka str.1, Moscow, 119034, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «Центр глазной хирургии», ул. Пречистенка, 40 / 2, стр.1, Москва, 119034, Российская Федерация</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC «Eye surgery center», Prechistenka str.1, Moscow, 119034, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>04</day><month>07</month><year>2016</year></pub-date><volume>13</volume><issue>2</issue><fpage>111</fpage><lpage>114</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Медведев И.Б., Евграфов В.Ю., Багров С.Н., Кемов Р.С., Дергачева Н.Н., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Медведев И.Б., Евграфов В.Ю., Багров С.Н., Кемов Р.С., Дергачева Н.Н.</copyright-holder><copyright-holder xml:lang="en">Medvedev I.B., Evgrafov V.J., Bagrov S.N., Kemov R.S., Dergacheva N.N.</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.ophthalmojournal.com/opht/article/view/308">https://www.ophthalmojournal.com/opht/article/view/308</self-uri><abstract><sec><title>Цель работы</title><p>Цель работы: оценка изменения биомеханических свойств роговицы после проведения трансэпителиального кросслинкинга с предварительным применением 40 %-ного раствора глюкозы.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Изучены биомеханические свойства роговицы шести кроликов породы Шиншила (12 глаз). 4 кролика вошли в опытную группу, в которой на один глаз наносили раствор глюкозы непосредственно на роговицу и выдерживали в течение 10 минут, после чего проводили закапывание 0,1 % раствора рибофлавина в течение 30 минут. На парный глаз кролика наносили раствор рибофлавина без предварительной инстилляции глюкозы. Затем осуществляли процедуру облучения по стандартной технологии с воздействием УФ с длиной волны 370 мкм и энергией излучения 3.0 мВт / см². Два кролика (4 глаза) составили контрольную группу, в которой кросслинкинг не проводили. Через 1 месяц проводили эвтаназию животных с последующей энуклеацией для исследования роговицы на разрывной машине. В контрольной и опытной группе сравнивали кривые релаксации и анализировали следующие показатели: начальное напряжение (мПа), равновесное напряжение (мПа), модуль упругости.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. После проведения кросслинкинга отмечался рост начального напряжения (в контрольной группе 0,7+0.1мПа, в опытной — 1,5+0.2 и 1,3+0.3 мПа, соответственно). Релаксация напряжения проходила быстро (равновесное значение напряжения достигалось уже через 250 сек.), а после инстилляции глюкозы — примерно в течение 75 сек., что говорит о большей ригидности этой группы образцов. В опытной группе достоверно изменился и модуль упругости: его значения возросли приблизительно в 2 раза по сравнению с контрольными образцами. Равновесные значения напряжения в опытных группах стали отличными от нулевого значения, что также свидетельствовало об изменении химической структуры образцов.</p></sec><sec><title>Выводы</title><p>Выводы. Проведение трансэпителиального кросслинкинга с предварительной инстилляцией 40 % раствора глюкозы обеспечивает проникновение рибофлавина в строму роговицы и повышает её биомеханическую прочность. Полученные нами данные указывают на перспективность применения в клинике разработанной модификации трансэпителиального кросслинкинга.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to evaluate changes in biomechanical properties of the cornea after conducting transepithelial crosslinking with the prior application of a 40 % glucose solution.</p><sec><title>Materials and methods</title><p>Materials and methods. Just studied the biomechanical properties of the corneas of six rabbits breed Chinchilla (12 eyes). 4 rabbit entered in the experimental group, in which in one eye glucose solution was applied on the cornea and allowed to stay for 10 minutes, followed by the instillation of 0.1 % Riboflavin solution for 30 minutes. On a couple of the rabbit eye was applied a solution of Riboflavin without prior instillation of glucose. Then carried out the procedure of irradiation according to the conventional technology with UV with a wavelength of 370 μm and a beam energy of 3.0 mW / cm2. Two rabbits (4 eyes) were included in the control group, in which crosslinking was not performed. After 1 month the euthanasia of the animals was performed with subsequent enucleation for corneal research on a tensile testing machine. In the control and experimental group compared, the relaxation curves and the following parameters were analyzed: initial stress (MPa), equilibrium stress (MPa) modulus of elasticity.</p><p>Results and their discussion. After the crosslinking the rise of the initial stress (in the control group and 0.7+0.1 MPa, in the experimental and 1.5+0.2 1.3+0.3 MPa, respectively). The stress relaxation is fast (equilibrium stress value is reached after 250 sec.) and after the administration of glucose for approximately 75 seconds, which means a greater rigidity of experimental group of samples. In the experimental groups significantly changed and the modulus of elasticity: its value has increased approximately in 2 times in comparison with control samples. The equilibrium stress values in the experimental groups were different from the zero value that also indicates a change in the chemical structure of the samples.</p></sec><sec><title>Conclusions</title><p>Conclusions. Holding transepithelial of crosslinking with prior instillation of a 40 % solution of glucose facilitates the penetration of Riboflavin into the corneal stroma and improves its biomechanical strength. Our data indicate promising application in the clinic of this modification of transepithelial crosslinking.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>трансэпителиальный кросслинкинг</kwd><kwd>роговица</kwd><kwd>биомеханические свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>transepithelial crosslinking</kwd><kwd>cornea</kwd><kwd>biomechanical properties</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. Stress — strain measurements of human and porcine corneas after riboflavin Ultravoilet-A-induced collagen cross-linking. J Cataract Refract Surg. 2003;29:1780‑1785.</mixed-citation><mixed-citation xml:lang="en">Wollensak G., Spoerl E., Seiler T. Stress — strain measurements of human and porcine corneas after riboflavin Ultravoilet-A-induced collagen cross-linking. 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