<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">Doklady Biological Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Biological Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Науки о жизни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-7389</issn><issn publication-format="electronic">3034-5057</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">697718</article-id><article-id pub-id-type="doi">10.7868/S3034543X25050141</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>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 FEMTOSECOND LASER IRRADIATION ON COGNITIVE ABILITIES IN MICE</article-title><trans-title-group xml:lang="ru"><trans-title>ДЕЙСТВИЕ ФЕМТОСЕКУНДНОГО ЛАЗЕРНОГО ИЗЛУЧЕНИЯ НА КОГНИТИВНЫЕ СПОСОБНОСТИ МЫШЕЙ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ivanitskii</surname><given-names>G. R.</given-names></name><name xml:lang="ru"><surname>Иваницкий</surname><given-names>Г. Р.</given-names></name></name-alternatives><bio xml:lang="en"><p>Corresponding Member of the RAS</p></bio><bio xml:lang="ru"><p>Член-корр. РАН</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sorokina</surname><given-names>S. S.</given-names></name><name xml:lang="ru"><surname>Сорокина</surname><given-names>С. С.</given-names></name></name-alternatives><email>sorokinasvetlana.iteb@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dyukina</surname><given-names>A. R.</given-names></name><name xml:lang="ru"><surname>Дюкина</surname><given-names>А. Р.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yusupov</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Юсупов</surname><given-names>В. И.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Theoretical and Experimental Biophysics RAS</institution></aff><aff><institution xml:lang="ru">Институт теоретической и экспериментальной биофизики РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Photonic Technologies National Research Center "Kurchatov Institute"</institution></aff><aff><institution xml:lang="ru">Институт фотонных технологий КККиФ НИЦ "Курчатовский институт"</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-10-15" publication-format="electronic"><day>15</day><month>10</month><year>2025</year></pub-date><volume>524</volume><issue>1</issue><issue-title xml:lang="en">VOL 524, NO1 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 524, №1 (2025)</issue-title><fpage>576</fpage><lpage>581</lpage><history><date date-type="received" iso-8601-date="2025-12-04"><day>04</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-10-15"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-7389/article/view/697718">https://journals.eco-vector.com/2686-7389/article/view/697718</self-uri><abstract xml:lang="en"><p>The effect of low-intensity femtosecond laser radiation (200 fs, 525 nm, 5 mW) on cognitive abilities of mice at late stages after exposure was studied. Open field and Barnes maze tests were performed 5 months after a single irradiation to assess general activity, anxiety level, and spatial learning ability. Irradiated animals retained normal motor skills, did not show anxiety, and demonstrated stable long-term memory when performing spatial learning tasks. Irradiated mice showed no changes in the model of locomotor and psychoemotional behavior or disturbances in spatial learning and memory, while they better preserved the memory trace on the 9th day after training compared to control animals. The obtained results indicate the potential of photobiomodulation with femtosecond pulses as a promising non-drug method for the prevention and correction of cognitive impairment, including those caused by radiation therapy.</p></abstract><trans-abstract xml:lang="ru"><p>Изучено влияние низкоинтенсивного фемтосекундного лазерного излучения (200 фс, 525 нм, 5 мВт) на когнитивные способности мышей в отдалённые сроки после воздействия. Через 5 месяцев после однократного облучения были проведены тесты открытого поля и лабиринт Барнс для оценки общей активности, уровня тревожности и способности к пространственному обучению. Облучённые животные сохраняли нормальную моторику, не проявляли тревожности и демонстрировали стабильную долговременную память при выполнении задач на пространственное обучение. Облучённые мыши не показывали изменений в модели локомоторного и психоэмоционального поведения и нарушений в пространственном обучении и памяти, при этом лучше сохраняли памятный след на 9-е сутки после обучения по сравнению с контрольными животными. Полученные результаты свидетельствуют о потенциале фотобиомодуляции фемтосекундными импульсами как перспективного немедикаментозного метода для профилактики и коррекции когнитивных нарушений, в том числе вызванных лучевой терапией.</p></trans-abstract><kwd-group xml:lang="en"><kwd>femtosecond laser</kwd><kwd>behavior</kwd><kwd>cognitive deficit</kwd><kwd>hippocampus</kwd><kwd>radiation safety</kwd><kwd>mice</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фемтосекундный лазер</kwd><kwd>поведение</kwd><kwd>когнитивный дефицит</kwd><kwd>гиппокамп</kwd><kwd>радиационная безопасность</kwd><kwd>мыши</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Государственного задания Института теоретической и экспериментальной биологии РАН № 075-00223-25-03, в части постановки эксперимента с животными и проведения тестов, и НИЦ "Курчатовский институт", в части фотобиомодуляции.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sorokina, S.S., Zaichkina, S.I., Rozanova, O.M., et al. The Early Delayed Effect of Accelerated Carbon Ions and Protons on the Cognitive Functions of Mice // Biol Bull Russ Acad Sci. 2020. V. 47. P. 1651–1658.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Dompe C., Moncrieff L., Matys J., et al. Photobiomodulation—underlying mechanism and clinical applications // J of clinical medicine. 2020. V. 9. № 6. P. 1724.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Karu T.I. Cellular and molecular mechanisms of photobiomodulation (low-power laser therapy) // IEEE J. Sel. Top. Quantum Electron. 2013. V. 20. № 2 P. 143–148.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Zaichkina S.I., Dyukina A.R., Rozanova O.M., et al. Induction of radiation adaptive response in mice under the action of helium-neon laser and X-ray radiation // Bull of Exp Biol and Med. 2016. V. 161. № 1. P. 32–5.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Hong N., Yoon S.R., Ahn J.C. Photobiomodulation using an 830-nm laser alleviates hippocampal reactive gliosis and cognitive dysfunction in a mouse model of adolescent chronic alcohol exposure // Pharmacol Biochem and Behavior. 2025. V. 248. P. 173956.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Bikmulina P.Y., Kosheleva N.V., Shpichka A.I., et al. Photobiomodulation enhances mitochondrial respiration in an in vitro rotenone model of Parkinson's disease // Optical Engineering. 2020. V. 59. № 6. P. 061620.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Cardoso F.S., Barrett D.W., Wade Z., et al. Photobiomodulation of Cytochrome c Oxidase by Chronic Transcranial Laser in Young and Aged Brains // Front. Neurosci. 2022. V. 16. P.818005.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Salehpour F., Farajdokht F., Erfani M., et al. Transcranial near-infrared photobiomodulation attenuates memory impairment and hippocampal oxidative stress in sleep-deprived mice // Brain Res. 2018. V. 1682. P. 36–43.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Pan W.T., Liu P.M., Ma D., et al. Advances in photobiomodulation for cognitive improvement by near-infrared derived multiple strategies // J of Translat Med. 2023. V. 21. № 1. P. 135.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Belova A.N., Israelyan Yu.A., Sushin V.O., et al. Transcranial photobiomodulation in therapy of neurodegenerative diseases of the brain: theoretical background and clinical effectiveness // Prob of Balneo Physiother and Exc Therapy. 2021. V. 98. № 6. P. 61–67.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Kohli V., Elezzabi A.Y. Prospects and developments in cell and embryo laser nanosurgery // Wiley Interdiscipl Rev Nanomed Nanobiotechnol. 2009. V. 1. № 1. P. 11–25.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Salgado R., Torres P., Marinho A. Update on Femtosecond Laser-Assisted Cataract Surgery: A Review // Clin Ophthalmol. 2024. V.18. P. 459–472.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Cheng P., Tian X., Tang W., et al. Direct control of store-operated calcium channels by ultrafast laser // Cell Research. 2021. V. 31. № 7. P. 758–772.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Ivanitskii G.R., Zaichkina S.I., Dyukina A.R., et al. Low-Intensity Femtosecond Radiation Activates the Natural Defenses of Mice in vivo // Dokl Biochem Biophys. 2021. V. 501. № 1. P. 424–428.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Sorokina S.S., Malkov A.E., Shubina L.V., et al. Low dose of carbon ion irradiation induces early delayed cognitive impairments in mice // Radiat Environ Biophys. 2021. V. 60. № 1. P. 61–71.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Tian F., Hase S.N., Gonzalez-Lima F., et al. Transcranial laser stimulation improves human cerebral oxygenation // Lasers Surg Med. 2016. V. 48. № 4. P. 343–9.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Uozumi Y., Kawashiro H., Sato S., et al. Targeted increase in cerebral blood flow by transcranial near-infrared laser irradiation // Lasers Surg Med. 2010. V. 42. № 6. P. 566–76.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Rojas J.C., Gonzalez-Lima F. Neurological and psychological applications of transcranial lasers and LEDs // Biochem Pharmacol. 2013. V. 86. № 4. P. 447–57.</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Zhu Z., Zhang R., Chi Y., Li W., et al. Photobiomodulation effects on cognitive function – a systematic review and meta-analysis of randomized controlled trials // Lasers Med Sci. 2025. V. 40. № 1. P. 234.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Qi F., He H., Zhu Y. Neural Development and Repair Induced by Femtosecond Laser Stimulation // ACS Chem. Neurosci. 2024. V. 15. № 17. P. 3106.</mixed-citation></ref></ref-list></back></article>
