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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">Traumatology and Orthopedics of Russia</journal-id><journal-title-group><journal-title xml:lang="en">Traumatology and Orthopedics of Russia</journal-title><trans-title-group xml:lang="ru"><trans-title>Травматология и ортопедия России</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2311-2905</issn><issn publication-format="electronic">2542-0933</issn><publisher><publisher-name xml:lang="en">Vreden National Medical Research Center of Traumatology and Orthopedics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">834</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2017-23-4-78-82</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>METHODS OF EXAMINATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МЕТОДЫ ИССЛЕДОВАНИЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">PDGF ENZYMATIC ACTIVITY IN PATIENTS WITH DELAYED FRACTURE CONSOLIDATION</article-title><trans-title-group xml:lang="ru"><trans-title>ФЕРМЕНТАТИВНАЯ АКТИВНОСТЬ PDGF ПРИ ЗАМЕДЛЕННОЙ КОНСОЛИДАЦИИ ПЕРЕЛОМОВ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuzmenko</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Кузьменко</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>Dmitry V. Kuzmenko — Graduate Student, Тraumatology and Оrthopedics Department.</p>16, pr. Il’icha, Donetsk</bio><bio xml:lang="ru"><p>Кузьменко Дмитрий Владимирович — аспирант кафедры травматологии, ортопедии и хирургии экстремальных состояний.</p><p>Пр. Ильича, д. 16, Донецк</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lobanov</surname><given-names>G. V.</given-names></name><name xml:lang="ru"><surname>Лобанов</surname><given-names>Г. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>Gregory V. Lobanov — Dr. Sci. (Med.), Professor, Head of Тraumatology and Оrthopedics Department.</p>16, pr. Il’icha, Donetsk</bio><bio xml:lang="ru"><p>Лобанов Григорий Викторович — доктор медицинских наук, профессор, заведующий кафедрой травматологии, ортопедии и хирургии экстремальных состояний.</p><p>Пр. Ильича, д. 16, Донецк</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shatova</surname><given-names>O. P.</given-names></name><name xml:lang="ru"><surname>Шатова</surname><given-names>О. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>Olga P. Shatova — Cand. Sci. (Med.), Head of Biological Chemistry Department.</p>16, pr. Il’icha, Donetsk</bio><bio xml:lang="ru"><p>Шатова Ольга Петровна — кандидат медицинских наук, доцент, заведующая кафедрой биологической.</p><p>Пр. Ильича, д. 16, Донецк</p></bio><email>shatova.op@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Maxim Gorky Donetsk State Medical University</institution></aff><aff><institution xml:lang="ru">Донецкий национальный медицинский университет им. М. Горького</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-12-25" publication-format="electronic"><day>25</day><month>12</month><year>2017</year></pub-date><volume>23</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>78</fpage><lpage>82</lpage><history><date date-type="received" iso-8601-date="2017-12-26"><day>26</day><month>12</month><year>2017</year></date><date date-type="accepted" iso-8601-date="2017-12-26"><day>26</day><month>12</month><year>2017</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journal.rniito.org/jour/article/view/834">https://journal.rniito.org/jour/article/view/834</self-uri><abstract xml:lang="en"><p><bold>Introduction</bold>. Techniques that use growth factors to improve bone fragment consolidation and to treat the inflammatory and degenerative diseases of the musculoskeletal system have become very popular. Many researchers are actively searching for personification of this therapy and the reasons for delayed consolidation. The purpose of the study – to identify the biomarker for delayed bone consolidation.</p><p><bold>Materials and Methods. </bold>The study groups consisted of patients with high-energy tibia open fractures with normal (group 1) and with delayed (2nd group) consolidation of bone fragments. The enzymatic activity of platelet-derived growth factor (PDGF) in blood serum was studied after 7 days and in 1, 3 and 6 months after bone fragments reduction. Spectrophotometric technique (Specord-200) was used.</p><p>Results. In patients with normal consolidation of bone fragments, the enzymatic activity of PDGF was statistically significantly higher in comparison with the group with delayed healing. At the same time, the highest activity was reported on day 7, and by third month it was becoming lower.</p><p><bold>Conclusion.</bold> Bone healing depends on PDGF enzymatic activity, besides significant differences on various stages of healing were observed. Further study the reasons for the PDGF enzymatic deficiency and its correction are of a great interest for reducing the timing of consolidation.</p></abstract><trans-abstract xml:lang="ru"><p/><p><bold>Введение. </bold>В травматологии и ортопедии большую популярность приобрели методики, в которых используются факторы роста для улучшения консолидации переломов, а также для лечения воспалительных и дегенеративных заболеваний опорно-двигательного аппарата. Многими исследователями ведется активный поиск вариантов персонифицирования данной терапии и причин замедленной консолидации.</p><p><bold>Цель работы</bold> — выявление биохимического критерия замедленной консолидации.</p><p><bold>Материал и методы</bold>. Объектом наблюдения были пациенты с высокоэнергетическими открытыми переломами костей голени с нормальной (1 группа) и с замедленной (2 группа) консолидацией костных отломков. Изучали ферментативную активность тромбоцитарного фактора роста (PDGF) в сыворотке крови через 7 дней, а также через 1, 3 и 6 мес. после репозиции костных отломков. Использовали спектрофотометрическую методику (Specord-200).</p><p><bold>Результаты.</bold> У пациентов с нормальной консолидацией костных отломков ферментативная активность PDGF была статистически значимо выше по сравнению с группой, в которой консолидация была замедлена. При этом максимально высокая активность отмечалась на 7-й день, а к 3-му месяцу она становилась ниже.</p><bold>Заключение.</bold> Костная регенерация зависит от ферментативной активности PDGF. Выявлены значимые отличия на различных сроках консолидации. Изучение причин ферментативной недостаточности PDGF и их коррекция имеют большое значение для сокращения сроков консолидации.</trans-abstract><kwd-group xml:lang="en"><kwd>fracture consolidation</kwd><kwd>bone regeneration</kwd><kwd>thymidine phosphorylase</kwd><kwd>platelet-derived growth factor</kwd><kwd>nucleotides catabolism</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>консолидация перелома</kwd><kwd>костная регенерация</kwd><kwd>тимидинфосфорилаза</kwd><kwd>тромбоцитарный фактор роста</kwd><kwd>катаболизм нуклеотидов</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Лаврищева Г.И., Оноприенко Г.А. Морфологические и клинические аспекты репаративной регенерации опорных органов и тканей. М. : Медицина, 1996. 208 с. Lavrishcheva G.I., Onoprienko G.A. 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