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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">morpho</journal-id><journal-title-group><journal-title xml:lang="ru">Морфологические ведомости</journal-title><trans-title-group xml:lang="en"><trans-title>Morphological newsletter</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-3171</issn><issn pub-type="epub">2686-8741</issn><publisher><publisher-name>Private Medical University REAVIZ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/mv-mn.2025.33(4).928</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-928</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>КОЛИЧЕСТВЕННАЯ ИММУНОГИСТОХИМИЧЕСКАЯ ОЦЕНКА ЭФФЕКТИВНОСТИ РАДИОЧАСТОТНОЙ ДЕНЕРВАЦИИ ЛЁГОЧНОЙ АРТЕРИИ</article-title><trans-title-group xml:lang="en"><trans-title>QUANTITATIVE IMMUNOHISTOCHEMICAL EVALUATION OF THE EFFICACY OF RADIOFREQUENCY PULMONARY ARTERY DENERVATION</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-3820-7166</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильин</surname><given-names>Михаил Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Il'in</surname><given-names>Mikhail V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший преподаватель кафедры нормальной и топографической анатомии с оперативной хирургией</p></bio><bio xml:lang="en"><p>Senior Lecturer of the Department of Normal and Topographic Anatomy with Operative Surgery</p></bio><email xlink:type="simple">maiss-a@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/0000-0002-2850-5487</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Москвичев</surname><given-names>Евгений Васильеви</given-names></name><name name-style="western" xml:lang="en"><surname>Moskvichev</surname><given-names>Evgeniy V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор кафедры нормальной и топографической анатомии с оперативной хирургией; заведующий патологоанатомическим отделением</p></bio><bio xml:lang="en"><p>Doctor of Medical Sciences, Professor of the Department of Normal and Topographic Anatomy with Operative Surgery; Head of Pathologoanatomic Department, Republican Clinical Oncologic Dispensary</p></bio><email xlink:type="simple">moskvichev@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7488-1240</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>Вадим Авенирович</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>Vadim A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, кандидат медицинских наук, профессор кафедры медицинской биологии с курсом микробиологии и вирусологии</p></bio><bio xml:lang="en"><p>Doctor of Biological Sciences, Candidate of Medical Sciences, Professor of the Department of Medical Biology with a Course of Microbiology and Virology</p></bio><email xlink:type="simple">pooh12@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/0000-0002-9949-2281</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Драгунов</surname><given-names>Андрей Геннадьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Dragunov</surname><given-names>Andrei G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, генеральный директор</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, General Director</p></bio><email xlink:type="simple">adragunov@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3489-0169</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Драгунова</surname><given-names>Марина Витальевна</given-names></name><name name-style="western" xml:lang="en"><surname>Dragunova</surname><given-names>Marina V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-кардиолог</p></bio><bio xml:lang="en"><p>Cardiologist</p></bio><email xlink:type="simple">vitarinacor@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8117-7336</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романов</surname><given-names>Владимир Станиславович</given-names></name><name name-style="western" xml:lang="en"><surname>Romanov</surname><given-names>Vladimir S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заведующий Чебоксарским межрайонным патологоанатомическим отделением № 1</p></bio><bio xml:lang="en"><p>Head of the Cheboksary Interdistrict Pathology Department № 1</p></bio><email xlink:type="simple">romanovvs83@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Чувашский государственный университет имени И.Н. Ульянова, Чебоксары</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.N. Ulyanov Chuvash State University, Cheboksary</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Чувашский государственный университет имени И.Н. Ульянова; Республиканский клинический онкологический диспансер, Чебоксары</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.N. Ulyanov Chuvash State University, Cheboksary; Republican Clinical Oncologic Dispensary, Cheboksary</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «Ангио Лаб», Чебоксары</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«Angio Lab», Cheboksary</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Республиканский кардиологический диспансер, Чебоксары</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Republican Cardiology Dispensary, Cheboksary</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Республиканское бюро судебно-медицинской экспертизы, Чебоксары</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Republican Forensic Medical Examination Bureau, Cheboksary</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>01</month><year>2026</year></pub-date><volume>33</volume><issue>4</issue><elocation-id>id-928</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Ильин М.В., Москвичев Е.В., Козлов В.А., Драгунов А.Г., Драгунова М.В., Романов В.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ильин М.В., Москвичев Е.В., Козлов В.А., Драгунов А.Г., Драгунова М.В., Романов В.С.</copyright-holder><copyright-holder xml:lang="en">Il'in M.V., Moskvichev E.V., Kozlov V.A., Dragunov A.G., Dragunova M.V., Romanov V.S.</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://www.morpholetter.com/jour/article/view/928">https://www.morpholetter.com/jour/article/view/928</self-uri><abstract><sec><title>Цель</title><p>Цель: провести морфологическую оценку эффективности радиочастотной денервации лёгочной артерии с помощью иммуногистохимического окрашивания ганглионарных нервных сплетений и вегетативных нервных волокон антителами к белку S-100.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследованы 30 лёгочных стволов людей, умерших от внесердечной патологии, в возрасте от 31 до 65 лет (аутопсийный материал). Пять лёгочных стволов служили контролем, 25 были обработаны радиочастотной денервацией лёгочной артерии (РЧА ДЛА) с использованием экспериментального генератора (440 кГц, мощность 10 Вт). Парафиновые срезы толщиной 4 мкм окрашивали на иммуностейнере Leica Bond MAX поликлональными антителами к белку S-100. Статистическим параметром служила относительная площадь нервных волокон (Sотн.).</p></sec><sec><title>Результаты</title><p>Результаты. В контрольных образцах лёгочные нервные волокна после окрашивания на белок S-100 преимущественно обнаруживались по левому латеральному краю лёгочного ствола: медианные значения Sотн.=5,72% (95% ДИ 4,27–8,95). В передней и задней стенках лёгочного ствола встречалось незначительное количество тонких нервных волокон: Sотн.=0,99% (95% ДИ 0,48–0,93), p&lt;0,0001. В срезах лёгочных стволов, подвергнутых РЧА ДЛА, нервные волокна на белок S-100 не окрашивались, что свидетельствует о термической коагуляции белков с потерей специфической трёхмерной структуры и антигенных свойств.</p></sec><sec><title>Заключение</title><p>Заключение. Количественная иммуногистохимическая оценка с использованием антител к белку S-100 является объективным методом верификации необратимого термического повреждения вегетативных нервных волокон лёгочной артерии и позволяет оценить эффективность радиочастотной денервации. Данный метод может быть использован в клинической и экспериментальной работе для оценки эффективности проведённой абляции как на аутопсийном, так и биопсийном материале.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. To perform a morphological evaluation of the efficacy of radiofrequency pulmonary artery denervation using immunohistochemical staining of ganglionic nerve plexuses and autonomic nerve fibers with antibodies against S-100 protein.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Thirty pulmonary trunks from individuals who died of extracardiac pathology, aged 31 to 65 years (autopsy material), were studied. Five pulmonary trunks served as controls, while 25 were treated with radiofrequency pulmonary artery denervation (RFA-PA) using an experimental generator (440 kHz, power 10 W). Paraffin sections of 4 μm thickness were stained on a Leica Bond MAX immunostainer with polyclonal antibodies against S-100 protein. The relative area of nerve fibers (Srel.) was used as the statistical parameter.</p></sec><sec><title>Results</title><p>Results. In control specimens, pulmonary nerve fibers after S-100 protein staining were predominantly detected along the left lateral edge of the pulmonary trunk: median Srel.=5.72% (95% CI 4.27–8.95). A small number of fine nerve fibers were found in the anterior and posterior walls of the pulmonary trunk: Srel.=0.99% (95% CI 0.48–0.93), p&lt;0.0001. In sections of pulmonary trunks subjected to RFA-PA, nerve fibers did not stain for S-100 protein, indicating thermal coagulation of proteins with loss of specific three-dimensional structure and antigenic properties.</p></sec><sec><title>Conclusion</title><p>Conclusion. Quantitative immunohistochemical evaluation using antibodies against S-100 protein is an objective method for verifying irreversible thermal damage to autonomic nerve fibers of the pulmonary artery and allows assessment of radiofrequency denervation efficacy. This method can be used in clinical and experimental work to evaluate ablation efficacy in both autopsy and biopsy material.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>морфологическая оценка</kwd><kwd>иммуногистохимия</kwd><kwd>белок S-100</kwd><kwd>денервация лёгочной артерии</kwd><kwd>парафиновые срезы 4 мкм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>morphological evaluation</kwd><kwd>immunohistochemistry</kwd><kwd>S-100 protein</kwd><kwd>pulmonary artery denervation</kwd><kwd>radiofrequency ablation</kwd><kwd>pulmonary hypertension</kwd><kwd>autonomic nerve fibers</kwd><kwd>autopsy material</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bogachev–Prokop'ev AV, Zheleznev SI, Afanas'ev AV i dr. Ablyatsiya ganglionarnykh spleteniy legochnoy arterii pri khirurgicheskom lechenii porokov mitral'nogo klapana u patsientov s vysokoy legochnoy gipertenziey. 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