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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Morphology</journal-id><journal-title-group><journal-title xml:lang="en">Morphology</journal-title><trans-title-group xml:lang="ru"><trans-title>Морфология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3543</issn><issn publication-format="electronic">2949-2556</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">398630</article-id><article-id pub-id-type="doi">10.17816/morph.398630</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">TISSUE REACTIONS DURING THE DEGRADATION OF POLYLACTIDE IMPLANTS IN THE BODY</article-title><trans-title-group xml:lang="ru"><trans-title>ТКАНЕВЫЕ РЕАКЦИИ ПРИ ДЕГРАДАЦИИ ИМПЛАНТАТОВ ИЗ ПОЛИЛАКТИДА В ОРГАНИЗМЕ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maiborodin</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Майбородин</surname><given-names>Игорь Валентинович</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><email>imai@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetsova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>Ирина Владимировна</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Beregovoy</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Береговой</surname><given-names>Евгений Анатольевич</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shevela</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Шевела</surname><given-names>Андрей Иванович</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Barannik</surname><given-names>M. I.</given-names></name><name xml:lang="ru"><surname>Баранник</surname><given-names>Михаил Иванович</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Manayev</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Манаев</surname><given-names>Андрей Александрович</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maiborodina</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Майбородина</surname><given-names>Виталина Игоревна</given-names></name></name-alternatives><bio xml:lang="ru"><p>Центр новых медицинских технологий</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Chemical Biology and Fundamental Medicine</institution></aff><aff><institution xml:lang="ru">Институт химической биологии и фундаментальной медицины СО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2013</year></pub-date><volume>143</volume><issue>3</issue><issue-title xml:lang="en">VOL 143, NO3 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 143, №3 (2013)</issue-title><fpage>059</fpage><lpage>065</lpage><history><date date-type="received" iso-8601-date="2023-05-09"><day>09</day><month>05</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Эко-Вектор</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://j-morphology.com/1026-3543/article/view/398630">https://j-morphology.com/1026-3543/article/view/398630</self-uri><abstract xml:lang="en"><p>Tissue reactions, accompanying the degradation processes of polylactide (PLA) implants after their placement into the subcutaneous tissue, were studied by the methods of light microscopy in 6 month-old Wag rats (n=24) weighing 180-200 g. It was found that PLА implants became encapsulated by connective tissue. If the implant or its fragment had sharp margins that damaged the tissues, a thick capsule was formed with a distinct inflammatory infiltration and the sclerosis of the surrounding tissues. If the implant had no sharp margins, the capsule was thin, and the activity of inflammation was minimal. In all cases, the giant cells of foreign body type were present in the capsule and next to it. Gradually, during 6 months, the activity of inflammatory process subsided. Inflammation sharply increased 12 months after the implantation, when, as a result of effect of enzymes released by phagocytes and deformation by a capsule, PLA implants were either fragmented or is liquified. PLA-based materials are not totally biodegradable, and may persist in the body for a long time.</p></abstract><trans-abstract xml:lang="ru"><p>Методами световой микроскопии изучали тканевые реакции, связанные с процессами деградации имплантатов из полилактида (ПЛ) после их помещения в подкожную основу 6-месячным крысам (n=24) линии Wag массой 180–200 г. Было обнаружено, что имплантат инкапсулируется соединительной тканью. В тех случаях, когда он или его фрагменты имеют острые края, которые повреждают ткани, формируется толстая капсула с отчетливой воспалительной инфильтрацией и склерозом окружающих тканей. Если имплантат не имеет острых краев, капсула тонкая, выраженность воспаления минимальная. Во всех случаях в капсуле и рядом с ней присутствуют гигантские клетки инородных тел. Постепенно в течение 6 мес активность воспалительного процесса снижается. Выраженность воспаления резко возрастает к 12 мес после имплантации, когда в результате действия ферментов фагоцитов и деформации капсулой имплантат или фрагментируется, или разжижается. Материалы на основе ПЛ не являются в полной мере биодеградируемыми и сохраняются в организме длительное время.</p></trans-abstract><kwd-group xml:lang="en"><kwd>polylactide</kwd><kwd>degradation</kwd><kwd>encapsulation</kwd><kwd>implantation</kwd><kwd>granulomatous inflammation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>имплантация</kwd><kwd>деградация</kwd><kwd>инкапсуляция</kwd><kwd>гранулематозное воспаление</kwd><kwd>полилактид</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Добрякова О. Б. и Ковынцев Н. Н. Аугментационная маммопластика силиконовыми эндопротезами. М., МОК ЦЕНТР, 2000.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Майбородин И. В., Егоров Д. В., Родишева Т. М. и др. 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