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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">Russian Journal of Physiology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Physiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский физиологический журнал им. И.М. Сеченова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-8139</issn><issn publication-format="electronic">2658-655X</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">651625</article-id><article-id pub-id-type="doi">10.31857/S0869813924080041</article-id><article-id pub-id-type="edn">BCCLKP</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>EXPERIMENTAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</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">Effect of preservation on changes in the volume of corneal endothelial cells in an environment with a high concentration of potassium</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние консервации на изменение объема клеток эндотелия роговицы в среде с высокой концентрацией калия</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Katkova</surname><given-names>L. E.</given-names></name><name xml:lang="ru"><surname>Каткова</surname><given-names>Л. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baturina</surname><given-names>G. S.</given-names></name><name xml:lang="ru"><surname>Батурина</surname><given-names>Г. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Teterin</surname><given-names>M. M.</given-names></name><name xml:lang="ru"><surname>Тетерин</surname><given-names>М. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sakhanenko</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Саханенко</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Palchikova</surname><given-names>I. G.</given-names></name><name xml:lang="ru"><surname>Пальчикова</surname><given-names>И. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Iskakov</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Искаков</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio><p>Новосибирский филиал</p></bio><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Solenov</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Соленов</surname><given-names>Е. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>eugsol@bionet.nsc.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт цитологии и генетики Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Novosibirsk State University</institution></aff><aff><institution xml:lang="ru">Новосибирский национальный исследовательский государственный университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Novosibirsk State Technical University</institution></aff><aff><institution xml:lang="ru">Новосибирский государственный технический университет</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Sobolev Institute of Mathematics of the Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт математики им. С. Л. Соболева Сибирского отделения Российской Академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Technological Design Institute of Scientific Instrument Engineering of the Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Конструкторско-технологический институт научного приборостроения Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Fedorov NMRC MNTK “Eye Microsurgery”</institution></aff><aff><institution xml:lang="ru">Межотраслевой научно-технический комплекс «Микрохирургия глаза» им. акад. С. Н. Федорова Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2024</year></pub-date><volume>110</volume><issue>8</issue><issue-title xml:lang="ru"/><fpage>1264</fpage><lpage>1272</lpage><history><date date-type="received" iso-8601-date="2025-02-01"><day>01</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-8139/article/view/651625">https://journals.eco-vector.com/0869-8139/article/view/651625</self-uri><abstract xml:lang="en"><p>The experimental study of preservation length on the effect of high potassium concentration in the medium on the volume of human corneal endothelial cells was done. The results of the study of individual samples of fragments of donor material and the values calculated using joined data after hypothermic preservation for 4 and 10 days are presented. The increase of the time when cornea samples are kept in preservation medium (Eusol-C) at 4℃ led to a decrease in the average value (<italic>M </italic>± <italic>SEM</italic>) of cell swelling indicator (<italic>N</italic>) in a potassium medium from 1.055 ±0.001; <italic>n</italic> = 982 to 1.014±0.001; <italic>n</italic> = 338; after 4 and 10 days, respectively. Student’s-<italic>t </italic>test for independent samples showed a high degree of significance for the difference between these values (<italic>p</italic> = 2E-76). Identification of the proportion of cells capable to swell in a medium with a high content of potassium ions (<italic>N</italic> &gt; 1), reflecting the electrogenic activity in these cells, showed a decrease of this indicator in the studied groups with increasing duration of preservation (94.3% and 56.8% after 4 and 10 days, respectively).</p> <p>Based on the results of the study, it is suggested that the values of endothelial cells swelling in a potassium environment can serve as indicators of the cells’ ability to restore electrogenic transport. It is concluded that the study of cell swelling in a medium with a high content of potassium ions can provide information for predicting the functionality of the graft.</p></abstract><trans-abstract xml:lang="ru"><p>Проведено экспериментальное исследование воздействия высокой (100 мM) концентрации калия в среде на объем клеток эндотелия роговицы человека в зависимости от времени холодовой консервации донорского препарата. Приведены результаты исследования единичных образцов и значения, полученные на объединенном материале фрагментов донорских образцов после содержания препаратов в консервационной среде при 4 ℃ в течение 4 и 10 дней. Увеличение времени холодовой консервации препаратов привело к снижению процента клеток, способных набухать в среде с повышенным содержанием ионов калия (94.3% и 56.8% после 4 и 10 дней соответственно). Исследование клеток, способных к набуханию, показало, что увеличение времени их холодовой консервации привело к снижению средней величины (<italic>M</italic> ± <italic>SEM</italic>) коэффициента набухания клеток в среде с высокой концентрацией калия с 1.055 ± 0.001 до 1.014 ± 0.001 после 4 и 10 дней соответственно. Высокую степень достоверности различия этих значений (<italic>p</italic>-value = 2E-76) показали с помощью <italic>t</italic>-критерия Стьюдента для независимых выборок.</p> <p>По результатам исследования высказывается предположение, что величины набухания клеток эндотелия в калиевой среде могут служить показателями способности клеток к восстановлению электрогенного транспорта. Делается заключение, что исследование реакции клеток эндотелия роговицы на повышение концентрации ионов калия в среде может давать информацию для прогноза функциональности трансплантата.</p></trans-abstract><kwd-group xml:lang="en"><kwd>corneal endothelium</kwd><kwd>corneal transplantation</kwd><kwd>hypothermic preservation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эндотелий роговицы</kwd><kwd>трансплантация роговицы</kwd><kwd>холодовая консервация</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>124041900016–2</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Maurice DM (1972) The location of the fluid pump in the cornea. 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