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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">nefr</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology (Saint-Petersburg)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-6274</issn><issn pub-type="epub">2541-9439</issn><publisher><publisher-name>Pavlov First Saint-Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36485/1561-6274-2024-28-1-96-104</article-id><article-id custom-type="edn" pub-id-type="custom">SLDTYV</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-2295</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. ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES. EXPERIMENTAL INVESTIGATION</subject></subj-group></article-categories><title-group><article-title>Состояние сердечно-сосудистой системы у крыс линии Wistar с экспериментальной дисфункцией почек</article-title><trans-title-group xml:lang="en"><trans-title>Condition of the cardiovascular system in Wistar rats with experimental renal dysfunction</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7532-2405</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Береснева</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Beresneva</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Береснева Ольга Николаевна - канд. биол. наук, Научно-исследовательский институт нефрологии, лаборатория клинической физиологии почек, старший научный сотрудник,</p><p>197022, Санкт-Петербург, ул. Л. Толстого, д. 17, корп. 54</p></bio><bio xml:lang="en"><p>Olga N. Beresneva, PhD, Nephrology Laboratory of Clinical Physiology of the Kidney Senior researcher,</p><p>197022, St-Petersburg, L.Tolstoy st., 17, build.54</p></bio><email xlink:type="simple">beresnevaolga@list.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/0000-0002-4526-8671</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Парастаева</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Parastaeva</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Парастаева Марина Магрезовна - канд. биол. наук, Научно-исследовательский институт нефрологии, лаборатория клинической физиологии почек, старший научный сотрудник, </p><p>197022, Санкт-Петербург, ул. Л. Толстого, д. 17, корп. 54</p></bio><bio xml:lang="en"><p>Marina M. Parastaeva, PhD, Nephrology Laboratory of Clinical Physiology of the Kidney Senior researcher,</p><p>197022, St-Petersburg, L.Tolstoy st., 17, build. 54</p></bio><email xlink:type="simple">marina_parastaeva@list.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/0000-0003-0188-5173</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>Г. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>G. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Галина Тажимовна - канд. биол. наук, лаборатория физиологии сердечно-сосудистой и лимфатической систем, старший научный сотрудник,</p><p>199034, Санкт-Петербург, наб. Макарова, д. 6</p></bio><bio xml:lang="en"><p>Galina T. Ivanova, PhD, laboratory of physiology of the cardiovascular and lymphatic systems. Senior researcher,</p><p>199034, St-Petersburg, Makarova Emb., 6</p></bio><email xlink:type="simple">ivanovagt@infran.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/0000-0002-7034-0962</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Александра Николаевна -ресурсный центр «Развитие молекулярных и клеточных технологий» научного парка, специалист,</p><p>199034, Санкт-Петербург, Университетская набережная, д. 7-9</p></bio><bio xml:lang="en"><p>Alexandra N. Ivanova - resource center “Development of molecular and cellular technologies” of the science park, specialist,</p><p>199034, St-Petersburg, Universitetskaya embankment, 7-9</p></bio><email xlink:type="simple">alyx@bk.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/0009-0004-0843-7597</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Огнев</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Ognev</surname><given-names>O. G.</given-names></name></name-alternatives><email xlink:type="simple">ognew.og@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/0000-0002-5616-3488</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кучер</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kucher</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кучер Анатолий Григорьевич - проф., д-р мед. наук, научно-исследовательский институт нефрологии, научно-клинический исследовательский центр, заместитель директора,</p><p>197022, Санкт-Петербург, ул. Л. Толстого, д. 17, корп. 54</p></bio><bio xml:lang="en"><p>Anatoly G. Kucher - Prof., MD, PhD, DMedSci, Research Institute of Nephrology, Research and Сlinical Research Center, Vice-Director,</p><p>197022, St-Petersburg, L. Tolstoy st., 17, build 54</p></bio><email xlink:type="simple">prof.kucher@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>First Pavlov St.-Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт физиологии им. И.П. Павлова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov Institute of Physiology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>03</month><year>2024</year></pub-date><volume>28</volume><issue>1</issue><fpage>96</fpage><lpage>104</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Береснева О.Н., Парастаева М.М., Иванова Г.Т., Иванова А.Н., Огнев О.Г., Кучер А.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Береснева О.Н., Парастаева М.М., Иванова Г.Т., Иванова А.Н., Огнев О.Г., Кучер А.Г.</copyright-holder><copyright-holder xml:lang="en">Beresneva O.N., Parastaeva M.M., Ivanova G.T., Ivanova A.N., Ognev O.G., Kucher A.G.</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.nephrolog.ru/jour/article/view/2295">https://journal.nephrolog.ru/jour/article/view/2295</self-uri><abstract><sec><title>Цель</title><p>Цель: оценить функциональные и структурные изменения сосудов и миокарда у крыс стока Wistar на разных сроках формирования экспериментальной дисфункции почек.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследовано четыре группы животных. Первые две группы составили крысы, подвергнутые 5/6 нефрэктомии (НЭ). Срок после НЭ – 2 или 4 мес. В третью и четвертую группу вошли ложнооперированные (ЛО) животные аналогичного срока наблюдения. После окончания эксперимента у крыс измеряли артериальное давление, рассчитывали индекс массы левого желудочка (ИМЛЖ), выполняли биохимический анализ крови, гистологическое, иммуно-гистохимическое и электронно-микроскопическое исследование миокарда, на сроке 2 мес регистрировали сократительную активность воротной вены (in vitro).</p></sec><sec><title>Результаты</title><p>Результаты. Через 2 мес после НЭ у крыс выявлены рост АД, ИМЛЖ, снижение авторитмической сократительной активности воротной вены. На гистологическом уровне отмечены утолщение кардиомиоцитов и стенок артериальных сосудов, наличие периваскулярного фиброза. Через 4 мес у крыс с НЭ отмечали рост АД, гипертрофия кардиомиоцитов и периваскулярный фиброз прогрессировали. Толщина кардиомиоцитов составляла 14,1±3,11 мкм, что было значимо больше, чем в группе с НЭ 2 мес (12,5±1,5 мкм; р=0,008). На данном сроке наблюдения электронно-микроскопическое исследование выявило дезинтеграцию миофибрилл, нарушение укладки миофибрилл и структуры Z-дисков, изменение формы митохондрий. Через 2 мес после НЭ у крыс выявлено увеличение площади открытых капилляров (1902,8±202,9 мкм²) по сравнению с соответствующими ЛО животными (730,4±58,2 мкм²; р=0,0001). По мере развития дисфункции почек, возможно, возникала тенденция к увеличению площади капилляров (2139,1±396,5 мкм²; р =0,120).</p></sec><sec><title>Заключение</title><p>Заключение. У крыс линии Wistar с дисфункцией почек выявлено изменение не только АД, но и функциональной активности ВВ, а также структурных компонентов миокарда – кардиомиоцитов, стромы, сосудов. Рост массы миокарда на гистологическом уровне проявлялся достоверным увеличением толщины кардиомиоцитов, объёма соединительной ткани, толщины стенки сосудов артериального типа с достижением максимального значения на более длительном сроке после НЭ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>The aim</title><p>The aim: to evaluate functional and structural changes in blood vessels and myocardium in Wistar rats at different stages of the formation of experimental kidney dysfunction.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Four groups of animals were studied. The first two groups consisted of rats subjected to 5/6 nephrectomy (NE). The period after NE is 2 or 4 months. The third and fourth groups included sham-operated (SO) animals of a similar observation period. After the end of the experiment, blood pressure was measured in rats, the left ventricular mass index (LVMI) was calculated, a biochemical blood test, histological, immunohistochemical and electron microscopic examination of the myocardium were performed, and the contractile activity of the portal vein was recorded for a period of 2 months (in vitro).</p></sec><sec><title>Results</title><p>Results. 2 months after NE, an increase in blood pressure, LVMI, and a decrease in the autorhythmic contractile activity of the portal vein were detected in rats. At the histological level, thickening of cardiomyocytes and arterial vessel walls and the presence of perivascular fibrosis were noted. After 4 months, in rats with NE, the increase in blood pressure, cardiomyocyte hypertrophy and perivascular fibrosis progressed. The thickness of cardiomyocytes was 14.1±3.11 μm, which was significantly greater than in the group with NE for 2 months (12.5±1.5 μm; p=0.008). At this period of observation, electron microscopic examination revealed deintegration of myofibrils, disruption of myofibril stacking and z-disk structure, and changes in the shape of mitochondria. 2 months after NE, an increase in the area of open capillaries was detected in rats (1902.8±202.9 μm²) compared to the corresponding LO animals (730.4±58.2 μm²; p=0.000). As renal dysfunction develops, the capillary area tends to increase (2139.1±396.5 μm²; p =0.120).</p></sec><sec><title>Conclusion</title><p>Conclusion. In Wistar rats with renal dysfunction, changes were detected not only in the level of blood pressure, but also in the functional activity of the intravenous fluid, as well as in the structural components of the myocardium – cardiomyocytes, stroma and blood vessels. The increase in myocardial mass at the histological level was manifested by a significant increase in the thickness of cardiomyocytes, the volume of connective tissue, and the thickness of the wall of arterial vessels, reaching a maximum value at a longer period after NE.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>дисфункция почек</kwd><kwd>миокард</kwd><kwd>сосуды</kwd><kwd>артериальное давление</kwd><kwd>эксперимент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>renal dysfunction</kwd><kwd>myocardium</kwd><kwd>blood vessels</kwd><kwd>blood pressure</kwd><kwd>experiment</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">Matsushita K, Ballew SH, Wang AY et al. Epidemiology and risk of cardiovascular disease in populations with chronic kidney disease. 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