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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">10.24931/2413-9432-2022-11-1-20-26</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-531</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>Влияние бенгальского розового на агрегационную активность тромбоцитов</article-title><trans-title-group xml:lang="en"><trans-title>Influence of rose bengal on platelet aggregation activity</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>Петрищев</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrishchev</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Saint-Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гришачева</surname><given-names>Т. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Grishacheva</surname><given-names>T. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Saint-Petersburg</p></bio><email xlink:type="simple">laser82@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>Чефу</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Chefu</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Saint-Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint-Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>25</day><month>05</month><year>2022</year></pub-date><volume>11</volume><issue>1</issue><fpage>20</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петрищев Н.Н., Гришачева Т.Г., Чефу С.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Петрищев Н.Н., Гришачева Т.Г., Чефу С.Г.</copyright-holder><copyright-holder xml:lang="en">Petrishchev N.N., Grishacheva T.G., Chefu S.G.</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/531">https://www.pdt-journal.com/jour/article/view/531</self-uri><abstract><p>Проведено сравнительное изучение влияния фотоактивированного бенгальского розового на агрегацию тромбоцитов in vitro и в циркулирующей крови крыс-самцов Wistar. Из венозной крови получали плазму, обогащенную тромбоцитами (PRP). Агрегационную активность тромбоцитов определяли турбодиметрическим методом, индуктор агрегации – АДФ в конечной концентрации 1,25 μМ. В качестве фотосенсибилизатора (ФС) использовали бенгальский розовый (БР) (Acros Organics, США). Пробы PRP, содержащие ФС, облучали с помощью лазерного аппарата АЛОД-Изумруд (ООО «Алком медика», Россия), λ=532 нм, плотность мощности 0,05 Вт/см2 , плотность энергии 6, 12, 24 Дж/см2 . Влияние фотоактивированного БР на агрегацию циркулирующих тромбоцитов изучали после лазерного облучения бедренной артерии крыс. Параметры облучения: мощность 30 мВт; диаметр пятна 2 мм; экспозиция 30 мин. БР в концентрациях 0,5 и 1 мкг/мл стимулирует, а 5–10 мкг/мл – угнетает агрегацию тромбоцитов. Фотоактивация БР ослабляет стимулирующее действие лазерного облучения на агрегацию тромбоцитов. Фотодинамическая модификация крови приводила к увеличению интенсивности агрегации тромбоцитов на 24% по сравнению с контрольной группой, на 39,6% – по сравнению с группой без фотоактивации БР (р&lt;0,01). Полученные данные свидетельствуют о том, что под влиянием фотоактивации БР изменяется агрегационная активность тромбоцитов, степень выраженности и направленность эффекта зависят от концентрации БР. Изменение функциональной активности тромбоцитов является одним из проявлений фотодинамической модификации крови.</p></abstract><trans-abstract xml:lang="en"><p>The goal of the study is to comparatively examine the effect of photoactivated rose bengal on platelet aggregation in vitro and in circulating blood of male Wistar rats. Platelet-rich plasma (PRP) was obtained from venous blood. The aggregation activity of platelets was determined by the turbidimetric method, the aggregation inducer was ADP at a final concentration of 1.25 μM. Rose bengal (RB) (Acros Organics, USA) was used as a photosensitizer (PS). PRP samples containing the PS were irradiated using ALOD-Izumrud laser (OOO “Alcom Medica”, Russia), λ = 532 nm, power density 0.05 W/cm2 , energy density of 6, 12 and 24 J/cm2 . The effect of photoactivated RB on the aggregation of circulating PLT was studied after laser irradiation of the femoral artery of the rats: 30 mW laser power, 2 mm spot diameter and 30 min exposure. RB at concentrations of 0.5 and 1 μg/ml was found to stimulate, and 5-10 μg/ml—to inhibit platelet aggregation. Photoactivation of RB weakens the stimulating effect of laser irradiation on the aggregation of platelets. Photodynamic modification of blood led to an increase in the in[<xref ref-type="bibr" rid="cit1">1</xref>]tensity of platelet aggregation by 24% in comparison to the control group, and by 39.6% compared to the group without photoactivation of RB (p&lt;0.01). The data obtained indicate that under the influence of RB photoactivation, the aggregation activity of platelets changes, the severity and direction of the effect depend on the RB concentration. Change in functional activity of platelets is one of the manifestations of photodynamic modification of blood.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>бенгальский розовый</kwd><kwd>фотоактивация</kwd><kwd>фотодинамическая модификация крови</kwd><kwd>плазма богатая тромбоцитами</kwd><kwd>агрегация тромбоцитов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rose bengal</kwd><kwd>photoactivation</kwd><kwd>photodynamic blood modification</kwd><kwd>platelet rich plasma</kwd><kwd>platelet aggregation</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">Demartis S., Obinu A., Gavini E. и соавт. 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