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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">bioph</journal-id><journal-title-group><journal-title xml:lang="ru">Biomedical Photonics</journal-title><trans-title-group xml:lang="en"><trans-title>Biomedical Photonics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-9432</issn><publisher><publisher-name>Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24931/2413-9432-2023-12-3-16-20</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-604</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Фото и спектральный флуоресцентный анализ области травмы спинного мозга на животных моделях</article-title><trans-title-group xml:lang="en"><trans-title>Photo and spectral fluorescence analysis of the spinal cord injury area in animal models</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>Уденеев</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Udeneev</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">Andrey.udeneew@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>Калягина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalyagina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Репс</surname><given-names>В. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Reps</surname><given-names>V. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пятигорск</p></bio><bio xml:lang="en"><p>Pyatigorsk</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>Козлова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пятигорск</p></bio><bio xml:lang="en"><p>Pyatigorsk</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>Пигунова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pigunova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пятигорск</p></bio><bio xml:lang="en"><p>Pyatigorsk</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поздняков</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pozdnyakov</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пятигорск</p></bio><bio xml:lang="en"><p>Pyatigorsk</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>Скобельцин</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Skobeltsin</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лощенов</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Loschenov</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет МИФИ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute MEPhI)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет МИФИ; Институт общей физики им. А.М. Прохорова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute MEPhI); Prokhorov General Physics Institute of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Пятигорский Государственный Научно-Исследовательский Институт Курортологии филиал Федерального государственного бюджетного учреждения «Федеральный научно-клинический центр медицинской реабилитации и курортологии Федерального медико-биологического агентства» (Пятигорского ГНИИК ФФГБУ ФНКЦ МРиК ФМБА России); Пятигорский медико-фармацевтический институт – филиал ФГБОУ ВО «Волгоградский государственный медицинский университет» МЗ РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pyatigorsk State Research Institute of Balneology the branch of the Federal State Budgetary Institution «Federal Scientific and Clinical Center for Medical Rehabilitation and Balneology of the Federal Medical and Biological Agency» (Pyatigorsk GNIIK FFGBU FNCC MRIK FMBA of Russia); Pyatigorsk Medical and Pharmaceutical Institute – Branch of the Volgograd State Medical University of the Ministry of Health of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Пятигорский Государственный Научно-Исследовательский Институт Курортологии филиал Федерального государственного бюджетного учреждения «Федеральный научно-клинический центр медицинской реабилитации и курортологии Федерального медико-биологического агентства» (Пятигорского ГНИИК ФФГБУ ФНКЦ МРиК ФМБА России)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pyatigorsk State Research Institute of Balneology the branch of the Federal State Budgetary Institution «Federal Scientific and Clinical Center for Medical Rehabilitation and Balneology of the Federal Medical and Biological Agency» (Pyatigorsk GNIIK FFGBU FNCC MRIK FMBA of Russia)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>23</day><month>10</month><year>2023</year></pub-date><volume>12</volume><issue>3</issue><fpage>15</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Уденеев А.М., Калягина Н.А., Репс В.Ф., Козлова В.В., Пигунова Л.А., Поздняков Д.И., Скобельцин А.С., Лощенов В.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Уденеев А.М., Калягина Н.А., Репс В.Ф., Козлова В.В., Пигунова Л.А., Поздняков Д.И., Скобельцин А.С., Лощенов В.Б.</copyright-holder><copyright-holder xml:lang="en">Udeneev A.M., Kalyagina N.A., Reps V.F., Kozlova V.V., Pigunova L.A., Pozdnyakov D.I., Skobeltsin A.S., Loschenov V.B.</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.pdt-journal.com/jour/article/view/604">https://www.pdt-journal.com/jour/article/view/604</self-uri><abstract><p>Цель работы – проследить  динамику изменения флуоресцентных  сигналов  в приповерхностных слоях  тканей  травмированных участков спины лабораторных животных, что позволит, по косвенным признакам, оценить информативность флуоресцентной диагностики для последующего возможного диагностического мониторинга фотодинамической терапии спинного мозга. Модельными животными были крысы Вистар. Моделировалось два типа контузий: пневмоконтузия и контузия падающим грузом. Флуоресцентные измерения  проводились  фотографическим   и  спектрометрическим   методом с  препаратами  метиленовый  синий  и  индоцианин зеленый. Для фоторегистрации  флуоресцентного  ответа  использовался  стробоскопический флуоресцентный  имиджер с длиной волны возбуждения 630 нм. Спектральные  измерения проводились  с помощью спектрометра  ЛЕСА-01-БИОСПЕК, с возбуждением He-Ne  лазером  (632,8 нм). Показано,  что  оба  метода  позволяют  оценивать  величину  флуоресценции  метиленового  синего  и индоцианина зелёного в исследуемых тканях, а фотографический метод позволяет также получить пространственное распределение флуоресценции. Общая тенденция, обнаруженная в полученных данных – более интенсивная и равномерная флуоресценции дорсальной области крыс метиленовым синим, и менее интенсивное, но более контрастное распределение индоцианина зелёного. Представленные методы неинвазивны, что делает их привлекательными для диагностического использования. Однако из-за малой глубины приема сигнала состояние позвоночника можно определить лишь косвенно, по состоянию приповерхностных слоев тканей, накапливающих фотосенсибилизатор.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the work is to follow the dynamics of changes in fluorescent signals in the near-surface layers of tissue of injured areas of the back of laboratory animals, which will allow, by indirect evidence, to evaluate the information content of fluorescence diagnosis for subsequent possible diagnostic monitoring of photodynamic therapy of the spinal cord. The model animals were Wistar rats. Two types of contusions were modeled: pneumo-contusion and contusion by a falling load. Methylene blue and indocyanine green were used as photosensitizers. Fluorescence measurements were carried out by imaging and spectrometric methods. A stroboscopic fluorescence imager with an excitation wavelength of 630 nm was used to acquire fluorescence images. The LESA-01-BIOSPEC  spectrometer with a He-Ne laser excitation allowed to obtain spectra. It was shown that both methods make it possible to estimate the fluorescence value of methylene blue and indocyanine green in the tissues under study. Moreover, the photographic method also allows to obtain the spatial distribution of fluorescence. The general trend found in the data is a more intense and uniform fluorescence of the dorsal region of rats with methylene blue and a less intense, but more contrasting distribution of indocyanine green. The presented methods are non-invasive, which makes them attractive for diagnostic use. However, due to the shallow depth of signal reception, the condition of the spine can be determined only indirectly, by the condition of the near-surface layers of tissue that accumulate the photosensitizer.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Флуоресцентная диагностика</kwd><kwd>спектральный анализ</kwd><kwd>метиленовый синий</kwd><kwd>индоцианин зелёный</kwd><kwd>область спинного мозга</kwd><kwd>спинальная травма</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Fluorescence diagnosis</kwd><kwd>spectral analysis</kwd><kwd>methylene blue</kwd><kwd>indocyanine green</kwd><kwd>paravertebral area</kwd><kwd>spinal trauma</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was carried out as part of a state assignment “Development of technology for immunotherapeutic treatment of spinal cord injuries” Registration number: 122041300077-1.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">GBD 2016 Traumatic Brain Injury and Spinal Cord Injury Collaborators. 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