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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">vtio</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник трансплантологии и искусственных органов</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Transplantology and Artificial Organs</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1995-1191</issn><publisher><publisher-name>Academician V.I.Shumakov National Medical Research Center of Transplantology and Artificial Organs", Ministry of Health of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15825/1995-1191-2016-1-22-31</article-id><article-id custom-type="elpub" pub-id-type="custom">vtio-615</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>Трансплантация сердца и вспомогательное кровообращение</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Heart Transplantation and Assisted Circulation</subject></subj-group></article-categories><title-group><article-title>ЭКСПЕРИМЕНТАЛЬНЫЕ ПОДХОДЫ К СОЗДАНИЮ ПРОЛОНГИРОВАННОЙ ФОРМЫ АЦЕТИЛСАЛИЦИЛОВОЙ КИСЛОТЫ</article-title><trans-title-group xml:lang="en"><trans-title>CREATING A PROLONGED FORM OF ACETYLSALICYLIC ACID: AN EXPERIMENTAL APPROACH</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>Севастьянов</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sevastianov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123182, г. Москва, ул. Щукинская, д. 1</p></bio><bio xml:lang="en"><p>1, Schukinskaya str., Moscow, 123182</p></bio><email xlink:type="simple">viksev@yandex.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>Попов</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>V. K.</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>Белов</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>V. Yu.</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-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курсаков</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kursakov</surname><given-names>S. V.</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-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антонов</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Antonov</surname><given-names>E. N.</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>Богородский</surname><given-names>С. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogorodsky</surname><given-names>S. E.</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>ФГБУ «Федеральный научный центр трансплантологии и искусственных органов имени академика В.И. Шумакова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs&#13;
of the Ministry of Healthcare of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУН «Институт проблем лазерных и информационных технологий РАН»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Laser and Information Technologies of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>АНО «Институт медико-биологических исследований и технологий»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Biomedical Research and Technology (ANO)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>15</day><month>04</month><year>2016</year></pub-date><volume>18</volume><issue>1</issue><fpage>22</fpage><lpage>31</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Севастьянов В.И., Попов В.К., Белов В.Ю., Курсаков С.В., Антонов Е.Н., Богородский С.Э., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Севастьянов В.И., Попов В.К., Белов В.Ю., Курсаков С.В., Антонов Е.Н., Богородский С.Э.</copyright-holder><copyright-holder xml:lang="en">Sevastianov V.I., Popov V.K., Belov V.Y., Kursakov S.V., Antonov E.N., Bogorodsky S.E.</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://journal.transpl.ru/vtio/article/view/615">https://journal.transpl.ru/vtio/article/view/615</self-uri><abstract><sec><title>Цель</title><p>Цель. Разработка инкапсулированной в полимерные высокопористые микроносители пролонгированной формы ацетилсалициловой кислоты (АСК) с использованием сверхкритического диоксида углерода и последующим изучением методом ВЭЖХ кинетики высвобождения АСК in vitro и in vivo.</p></sec><sec><title>Матери- алы и методы</title><p>Матери- алы и методы. В качестве полимерных носителей для инкапсуляции АСК были выбраны аморфные D,L-полилактиды (ПЛ) и полилактогликолиды (ПЛГ) марок PURASORB PDL02 и PDLG7502 («PURAC Biochem bv», Нидерланды). Инкапсуляцию АСК проводили с использованием процесса сверхкритического флюидного формирования методом PGSS (Particles from Gas Saturated Solutions) мелкодисперсных (20–50 мкм) биорезорбируемых порошков алифатических полиэфиров, содержащих 10 масс.% АСК. Кинетику высвобождения АСК из полимерных микрочастиц в физиологический раствор и фармакокинетические исследования in vivo (кролики) регистрировали методом ВЭЖХ.</p></sec><sec><title>Результаты</title><p>Результаты. Разработана методика количественного определения АСК и ее основного метаболита салициловой кислоты (СК) в модельном растворе и плазме крови методомВЭЖХ с УФ-детектированием с улучшенной пробоподготовкой и селективностью. Аналитический диапазон методики без учета разбавления составил 0,05–5,0 мкг/мл для модельного раствора и 0,2–10,0 мкг/мл для плазмы крови; степень извлечения АСК СК из плазмы крови – 95,8 и 98,1% соответственно. Показано, что количество АСК, высвободившегося из ПЛ в течение первых 4 ч, примерно на 25% превышает массу АСК, выделившегося из ПЛГ, что может служить обоснованием выбора ПЛГ в качестве носителя для создания пролонгированной формы АСК. Фармакокинетические исследования (кролики, n = 3) показали постепенное высвобождение АСК из микрочастиц ПЛГ в течение 24 ч после внутримышечной имплантации инкапсулированной формы АСК в дозе 10 мг/кг.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные методом PGSS экспериментальные образцы высокопористых мелкодисперсных порошков ПЛГ, содержащие до 10 масс.% АСК, могут служить исходными прототипами для разработки и создания на их основе пролонгированной формы АСК.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. The development of a prolonged form of acetylsalicylic acid (ASA) encapsulated into polymeric highly porous microcarriers using supercritical carbon dioxide and the subsequent study of ASA release kinetics in vitro and in vivo using high-performance liquid chromatographic (HPLC).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. As polymeric carriers for ASA encapsulation amorphous D,L-polylactides (PLA) and polylactoglycolides (PLGA) of PURASORB PDL02 and PDLG7502 series (PURAC Biochem BV, Netherlands) were selected. The ASA encapsulation was performed using the PGSS (Particles from Gas Saturated Solutions) method of supercritical fl uid formation of microfi ne (20–50 μm) bioresorbable powders of aliphatic polyethers containing 10 wt.% ASA. The release kinetics of ASA from polymeric microparticles into saline solution as well as pharmacokinetic studies in vivo (rabbits) were registered by HPLC.</p></sec><sec><title>Results</title><p>Results. A method of quantitative determination of ASA and its main metabolite salicylic acid (SA) in model solution and blood plasma by HPLC-UV detection with enhanced sample preparation and selectivity was developed. The method’s analytical range without accounting for dilution was 0.05–5.0 μg/ml for model solution and 0.2–10.0 μg/ml for blood plasma; the degree of extraction of ASA SA from blood plasma – 95.8 and 98.1%, respectively. It was demonstrated that the amount of ASA released from PLA during the fi rst 4 h exceeds the mass of ASA released from PLGA by approximately 25% which may serve as a justifi cation for the selection of PLGA as a carrier for the creation of a prolonged form of ASA. Pharmacokinetic studies (rabbits, n = 3) demonstrated a gradual release of ASA from PLGA microparticles during 24 h after intramuscular implantation of encapsulated form of ASA at the dose of 10 mg/kg.</p></sec><sec><title>Conclusion</title><p>Conclusion. Test samples of highly porous microfi ne powders of PLGA obtained by PGSS containing up to 10 wt.% ASA may serve as source prototypes for the development and creation on their basis of a prolonged form of ASA.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>высокопористые полимерные микрочастицы</kwd><kwd>полиэфиры</kwd><kwd>инкапсуляция</kwd><kwd>ацетилсалициловая кислота</kwd><kwd>сверхкритический диоксид</kwd><kwd>кинетика высвобождения</kwd><kwd>плазма крови</kwd><kwd>ВЭЖХ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>highly porous polymeric microparticles</kwd><kwd>polyethers</kwd><kwd>encapsulation</kwd><kwd>acetylsalicylic acid</kwd><kwd>supercritical dioxide</kwd><kwd>release kinetics</kwd><kwd>blood plasma</kwd><kwd>HPLC</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">РФФИ, Л.И.Кротова</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">Машковский МД. 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