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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">ksma</journal-id><journal-title-group><journal-title xml:lang="ru">Кубанский научный медицинский вестник</journal-title><trans-title-group xml:lang="en"><trans-title>Kuban Scientific Medical Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-6228</issn><issn pub-type="epub">2541-9544</issn><publisher><publisher-name>Kuban State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25207/1608-6228-2023-30-5-77-86</article-id><article-id custom-type="elpub" pub-id-type="custom">ksma-3206</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. МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES. MEDICAL AND BIOLOGICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Посмертные изменения тканей и динамика их импедансометрических показателей: доклиническое экспериментальное исследование</article-title><trans-title-group xml:lang="en"><trans-title>Postmortem tissue changes and dynamics of their impedance parameters: a preclinical experimental study</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0620-9406</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаврукова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lavrukova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лаврукова Ольга Сергеевна — доктор медицинских наук, профессор кафедры анатомии, гистологии, топографической анатомии и оперативной хирургии, патологической анатомии, судебной медицины Медицинского института</p><p>пр. Ленина, д. 33, г. Петрозаводск, 185910</p></bio><bio xml:lang="en"><p>Olga S. Lavrukova — Dr. Sci. (Med.), Prof., Department of Anatomy, Histology, Topographic Anatomy and Operative Surgery, Pathological Anatomy, Forensic Medicine, Medical Institute</p><p>Lenina str., 33, Petrozavodsk, 185910</p></bio><email xlink:type="simple">olgalavrukova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8670-5380</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казакова</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakova</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казакова Елена Лионовна — кандидат физико-математических наук, доцент кафедры общей физики Физико-технического института</p><p>пр. Ленина, д. 33, г. Петрозаводск, 185910</p></bio><bio xml:lang="en"><p>Elena L. Kazakova — Cand. Sci. (Physics and Mathematics), Assoc. Prof., General Physics Department, Institute of Physics and Technology</p><p>Lenina str., 33, Petrozavodsk, 185910</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0067-8850</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поляков</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyakov</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поляков Алексей Юрьевич — заведующий отделом судебно-медицинской экспертизы трупов</p><p>ул. Л. Толстого, д.38, г. Петрозаводск, 185003</p></bio><bio xml:lang="en"><p>Aleksey Yu. Polyakov — Head of the Department of Forensic Medical Examination of Corpses</p><p>Tolstogo str., 38, Petrozavodsk, 185003</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Петрозаводский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Petrozavodsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственное бюджетное учреждение здравоохранения Республики Карелия «Бюро судебно-медицинской экспертизы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bureau of Forensic Medical Examination</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2023</year></pub-date><volume>30</volume><issue>5</issue><fpage>77</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лаврукова О.С., Казакова Е.Л., Поляков А.Ю., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лаврукова О.С., Казакова Е.Л., Поляков А.Ю.</copyright-holder><copyright-holder xml:lang="en">Lavrukova O.S., Kazakova E.L., Polyakov A.Y.</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://ksma.elpub.ru/jour/article/view/3206">https://ksma.elpub.ru/jour/article/view/3206</self-uri><abstract><p>Введение. Установление происходящих в посмертном периоде закономерностей является одной из главных задач судебно-медицинского учения о смерти и трупных явлениях. Познание этих закономерностей непосредственно связано с реконструкцией условий посмертного периода и, следовательно, определением давности наступления смерти. Цель исследования — анализ посмертных изменений тканей трупов и динамики их импедансометрических показателей в условиях естественного биоценоза. Методы. Исследованы трупы модельных биообъектов — восьми свиней, в возрасте одного-двух месяцев, весом до 10 кг. Экспериментальные исследования процесса разложения трупа проведены в условиях естественного биоценоза, ежедневно на протяжении 28 суток в двух повторностях. Фиксировались и анализировались изменения тканей трупов в процессе разложения. Предметом биофизических исследований являлись показатели импеданса тканей трех диагностических зон биообъекта: кожно-мышечного лоскута, хрящевой части третьего ребра и пяточного сухожилия. Измерения импеданса для каждого срока давности наступления смерти проводились на пяти частотах тока исследования: 100 и 120 Гц, 1, 10 и 100 кГц. Всего снято 2400 показаний. Статистическую обработку результатов исследования проводили с помощью программы Statistica 8.0 (StatSoft, США). Результаты. Существует взаимосвязь биологических изменений тканей трупа в посмертном периоде с характером динамики их импеданса. При исследовании импеданса в условиях естественного биоценоза установлена идентичная его зависимость от срока давности наступления смерти для всех частот тока исследования всех диагностических зон модельных биообъектов: можно выделить начальный интервал 0–4 суток, где импеданс дает «всплеск» с дальнейшим более плавным его уменьшением. Для тканей мертвого организма зафиксировано наличие дисперсии импеданса в целом в исследуемом интервале частот и отсутствие дисперсии непосредственно для высоких частот. Заключение. Понимание причин и сущности процессов, протекающих в теле посмертно, позволяет оценить и обосновать изменения каких-либо характеристик тканей, измеряемых количественно, в том числе и показателей импеданса, а также прогнозировать перспективность их использования в конкретных практических целях, а именно для диагностики давности наступления смерти.</p></abstract><trans-abstract xml:lang="en"><p>Background. Establishing regularities in postmortem intervals comprises one of the main tasks of the forensic science of death and cadaveric phenomena. The knowledge of these regularities is directly related to reconstructing the postmortem conditions and, consequently, to determining the postmortem interval. Objective. To analyze postmortem changes in cadaver tissues and dynamics of their impedance parameters under the conditions of natural biocenosis. Methods. The study involved the cadavers of model biological objects – eight pigs, aged one to two months, weighing up to 10 kg. Experimental studies of cadaver decomposition were carried out under natural biocenosis conditions, daily for 28 days with two replications. Changes in cadaver tissues during decomposition were recorded and analyzed. The subject of biophysical studies was the tissue impedance parameters of three diagnostic zones of the biological object: the musculocutaneous flap, the cartilaginous part of the third rib and the calcaneal tendon. Impedance measurements for each postmortem interval were performed at five studied current frequencies: 100 and 120 Hz, 1, 10 and 100 kHz. A total of 2,400 readings were taken. Statistical analysis of the study results was carried out by means of Statistica 8.0 (StatSoft Inc., USA). Results. Postmortem biological changes in cadaver tissues correlate with the nature of their impedance dynamics. The study of impedance under conditions of natural biocenosis established its identical dependence on the postmortem interval for all current frequencies of the study of all diagnostic zones of model biological objects: in the initial interval of 0–4 days, the impedance gives a “surge” followed by a smoother decrease. Cadaver tissues were recorded to indicate the presence of impedance dispersion in general in the studied frequency range and the absence of dispersion directly for high frequencies. Conclusion. Understanding the causes and essence of postmortem processes contributes to assessing and substantiating changes in any characteristics of tissues measured quantitatively, including impedance indicators, as well as to predicting the prospects of their use for specific practical purposes, in particular, for determining the postmortem interval.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ткани</kwd><kwd>посмертные изменения</kwd><kwd>импеданс</kwd><kwd>динамика</kwd><kwd>давность наступления смерти</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tissues</kwd><kwd>postmortem changes</kwd><kwd>impedance</kwd><kwd>dynamics</kwd><kwd>postmortem interval</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследования, описанные в данной работе, были проведены в рамках реализации Программы поддержки научно-исследовательских и опытно-конструкторских работ (НИОКР) студентов, аспирантов и лиц, имеющих ученую степень, финансируемой Правительством Республики Карелия (проект № КГРК 23–16).</funding-statement><funding-statement xml:lang="en">The research was carried out within the framework of the Research and Development (R&amp;D) Support Program for Students, Postgraduates and Degree Holders funded by the Government of the Republic of Karelia (project No. KGRK 23-16).</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">Кильдюшов Е.М., Ермакова Ю.В., Туманов Э.В., Кузнецова Г.С. 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