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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">776</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2024-23-1-92-98</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">The influence of temperature on platelet hemostasis induced by various agonists</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние температуры на тромбоцитарный гемостаз, индуцированный различными агонистами.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5063-3533</contrib-id><name-alternatives><name xml:lang="en"><surname>Dobrylko</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Добрылко</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Ирина Анатольевна Добрылко</p><p>Санкт-Петербург</p></bio><email>dobrilko@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2978-5118</contrib-id><name-alternatives><name xml:lang="en"><surname>Volkova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Волкова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Анастасия Андреевна Волкова</p><p>Санкт-Петербург</p></bio><email>10a.a.volkova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-6096-0350</contrib-id><name-alternatives><name xml:lang="en"><surname>Gerda</surname><given-names>B. A.</given-names></name><name xml:lang="ru"><surname>Герда</surname><given-names>Б. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Богдан Альфредович Герда</p><p>Санкт-Петербург</p></bio><email>bgerda2525@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-3061-4420</contrib-id><name-alternatives><name xml:lang="en"><surname>Mikhailova</surname><given-names>D. M.</given-names></name><name xml:lang="ru"><surname>Михайлова</surname><given-names>Д. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Диана Михайловна Михайлова</p><p>Санкт-Петербург</p></bio><email>mikhailowa.dm@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1470-0791</contrib-id><name-alternatives><name xml:lang="en"><surname>Gambaryan</surname><given-names>S. P.</given-names></name><name xml:lang="ru"><surname>Гамбарян</surname><given-names>С. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Степан Петрович Гамбарян</p><p>Санкт-Петербург</p></bio><email>gambaryan.stepan@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5978-2105</contrib-id><name-alternatives><name xml:lang="en"><surname>Mindukshev</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Миндукшев</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Igor V. Mindukshev, Dr. Sci. in Biology, Head of the Laboratory</p><p>Laboratory of Cellular Mechanisms of Blood Homeostasis</p><p>194223;  44 Toresa Ave.; Saint Petersburg</p></bio><bio xml:lang="ru"><p>Игорь Викторович Миндукшев, д-р биол. наук, заведующий лабораторией</p><p>лаборатория клеточных механизмов гомеостаза крови</p><p>194223; просп. Тореза, 44; Санкт-Петербург</p></bio><email>iv_mindukshev@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">The I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН Институт эволюционной физиологии и биохимии им. И.М. Сеченова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-19" publication-format="electronic"><day>19</day><month>04</month><year>2024</year></pub-date><volume>23</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>92</fpage><lpage>98</lpage><history><date date-type="received" iso-8601-date="2023-10-23"><day>23</day><month>10</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-11-09"><day>09</day><month>11</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/776">https://hemoncim.com/jour/article/view/776</self-uri><abstract xml:lang="en"><p>   Platelet activation, shape change and aggregation are active processes that can be significantly dependent on the ambient temperature. However, there are conflicting data in the literature regarding the effect of temperature on platelets. In our work, we used a laser diffraction method to investigate the influence of temperature on the reaction of human platelets activated byvarious agonists: ADP, U46619 (thromboxane mimetic), and thrombin (TRAP-6), that act through G-protein coupled receptors, and collagen, that activates the immunoglobulin receptor GPVI. For agonists that activate G-protein coupled receptors, we showed that an increase in temperature causes an acceleration of the initial platelet activation (shape change) and has nosignificant effect on agonist sensitivity (EC<sub>50</sub>). At the same time, hypothermia at low doses of such agonists potentiates platelet aggregation, which differs significantly from the effect of collagen. With increasing temperature, collagen accelerates platelet aggregation over the entire range of temperatures investigated. In this paper, we showed that the effect of temperature on platelet activation processes depends on both the dose of agonists and the type of activated receptors. In our study, we included healthy volunteers after obtaining a written informed consent. Blood samples were taken in accordance with the guidelines of the I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences and the Declaration of Helsinki. Studies with human erythrocytes were approved by the Ethics Committee of the I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences (Protocol No.3–03 dated 2 March 2021 and Protocol No.1–04 dated 7 April 2022).</p></abstract><trans-abstract xml:lang="ru"><p>   Активация, изменение формы (shape change) и агрегация тромбоцитов являются активными процессами, которые могут существенно зависеть от температуры окружающей среды. Однако в литературе данные о влиянии температуры на состояние тромбоцитов крайне противоречивы. В представленной работе методом лазерной дифракции исследовали влияние температуры на реакцию тромбоцитов человека, активированных различными агонистами: ADP, тромбоксаном (миметик U46619), тромбином (TRAP-6), которые действуют через рецепторы, связанные с G-белками, и коллагеном, активирующим иммуноглобулиновый рецептор GPVI. Для агонистов, которые активируют рецепторы, связанные с G-белками, показано, что увеличение температуры вызывает ускорение начальной реакции активации (shape change) и практически не влияет на чувствительность действия агонистов (EC<sub>50</sub>). В то же время гипотермия при низких дозах агонистов потенцирует агрегацию тромбоцитов, что существенно отличается от действия коллагена, который при увеличении температуры ускоряет ее на всем исследуемом диапазоне. В представленной работе мы показали, что влияние температуры на процессы активации тромбоцитов зависит как от дозы агонистов, так и от активируемых рецепторов. В исследовании принимали участие здоровые добровольцы после подписания информированного согласия. Забор крови проводили в соответствии с рекомендациями Института эволюционной физиологии и биохимии им. И. М. Сеченова РАН и Хельсинкской декларацией. Исследования с использованием эритроцитов человека одобрены этическим комитетом Института эволюционной физиологии и биохимии им. И. М. Сеченова РАН (протоколы №3–03 от 2 марта 2021 г. и №1–04 от 7 апреля 2022 г.).</p></trans-abstract><kwd-group xml:lang="en"><kwd>platelet hemostasis</kwd><kwd>temperature</kwd><kwd>laser diffraction</kwd><kwd>ADP</kwd><kwd>U46619</kwd><kwd>thrombin</kwd><kwd>TRAP-6</kwd><kwd>collagen</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тромбоцитарный гемостаз</kwd><kwd>температура</kwd><kwd>лазерная дифракция</kwd><kwd>ADP</kwd><kwd>U46619</kwd><kwd>тромбин</kwd><kwd>TRAP-6</kwd><kwd>коллаген</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was carried out with the support of a grant from the Russian Scientific Research Institute nogo fund, project No. 23-15-00142</funding-statement><funding-statement xml:lang="ru">Исследование проведено при поддержке гранта Российского научного фонда, проект № 23-15-00142</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gader A., Al-Mashhadani S., Al-Harthy S. 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