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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">10.36485/1561-6274-2022-26-1-75-87</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-2083</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>Изменения экспрессии микроРНК в моче и эндотелий-зависимой регуляции тонуса сосудов крыс линии Wistar, получавших высокосолевой рацион</article-title><trans-title-group xml:lang="en"><trans-title>Changes in microRNA expression in the urine and endotelium-dependent regulation of vassel tone in Wistar rats received a high-salt diet</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7605-4369</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зарайский</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaraiski</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проф. Зарайский Михаил Игоревич, д-р мед. наук, кафедра клинической лабораторной диагностики с курсом молекулярной медицины</p><p>197022, Санкт-Петербург, ул. Л. Толстого, д. 17, корп. 54</p></bio><bio xml:lang="en"><p>Prof. Mikhail I. Zaraiski, MD, PhD, DMedSci, Department of Clinical Laboratory Diagnostics with a Course of Molecular Medicine </p><p>197022, Saint Petersburg, L. Tolstoy st., 17, build 54</p></bio><email xlink:type="simple">mzaraiski@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/0000-0003-3088-4647</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лобов</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobov</surname><given-names>G. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проф. Лобов Геннадий Иванович, д-р мед. наук, лаборатория физиологии сердечно-сосудистой и лимфатической систем, заведующий лабораторией</p><p>199034, Санкт-Петербург, наб. Макарова, д. 6</p><p>Тел.: 8 (812) 328-07-01</p></bio><bio xml:lang="en"><p>Prof. Gennady I. Lobov, MD, PhD, DMedSci, laboratory of physiology of the cardiovascular and lymphatic systems. Head of Laboratory</p><p>199034, Saint-Petersburg, Makarova Emb., 6</p><p>Phone: 8 (812) 328-07-01 </p></bio><email xlink:type="simple">lobovgi@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/0000-0003-0188-5173</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><p>Тел.: 8 (812) 328-07-01</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, Saint-Petersburg, Makarova Emb., 6</p><p>Phone: 8 (812) 328-07-01 </p></bio><email xlink:type="simple">tazhim@list.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/0000-0002-4526-8671</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><p>Тел.: (812) 346-39-26 </p></bio><bio xml:lang="en"><p>Marina M. Parastaeva, PhD, Institute of Nephrology Laboratory of Clinical Physiology of the Kidney Senior researcher</p><p>197022, St-Petersburg , L.Tolstoy st., 17, build. 54</p><p>Phone (812)346-39-26 </p></bio><email xlink:type="simple">marina_parastaeva@list.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/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>Проф. Кучер Анатолий Григорьевич, 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><p>Тел.: +7(921)421-18-17</p></bio><bio xml:lang="en"><p>Prof. Anatoly G. Kucher, MD, PhD, DMedSci, Research Institute of Nephrology, Research and Сlinical Research Center, Vice-Director</p><p>197022, Saint Petersburg, L. Tolstoy st., 17, build 54</p><p>Phone: +7(921)421-18-17 </p></bio><email xlink:type="simple">prof.kucher@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/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><p>Тел.: (812) 346-39-26</p></bio><bio xml:lang="en"><p>Olga N. Beresneva, PhD, Institute of Nephrology Laboratory of Clinical Physiology of the Kidney Senior researcher</p><p>197022, St-Petersburg , L.Tolstoy st., 17, build 54</p><p>Phone (812)346-39-26 </p></bio><email xlink:type="simple">beresnevaolga@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова; Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov University; North-Western State Medical University named after I.I. Mechnikov</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>Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>18</day><month>02</month><year>2022</year></pub-date><volume>26</volume><issue>1</issue><fpage>75</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зарайский М.И., Лобов Г.И., Иванова Г.Т., Парастаева М.М., Кучер А.Г., Береснева О.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Зарайский М.И., Лобов Г.И., Иванова Г.Т., Парастаева М.М., Кучер А.Г., Береснева О.Н.</copyright-holder><copyright-holder xml:lang="en">Zaraiski V.I., Lobov G.I., Ivanova G.T., Parastaeva M.M., Kucher A.G., Beresneva O.N.</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/2083">https://journal.nephrolog.ru/jour/article/view/2083</self-uri><abstract><p>ЦЕЛЬ: оценить влияние высокосолевой диеты на уровень экспрессии микроРНК в моче и механизмы эндотелийзависимой вазодилатации у крыс. МАТЕРИАЛЫ И МЕТОДЫ. 20 крыс Wistar разделили на две равные группы. Высокосолевая (HS) группа получала 8 % NaCl в рационе, контрольная (NS) – стандартный рацион (0,34 % NaCl). Через 4 мес у крыс оценивали артериальное давление (АД), индекс массы левого желудочка (ИМЛЖ), в моче определяли относительные уровни экспрессии микроРНК- 21, микроРНК-133 и микроРНК-203. Оценку реактивности колец аорты и верхней брыжеечной артерии (ВБА) на ацетилхолин (АСh) проводили in vitro в изометрическом режиме. РЕЗУЛЬТАТЫ: по уровню АД различий между группами не выявлено (p&gt;0,05), однако, у HS-крыс отмечено увеличение ИМЛЖ. Относительные уровни экспрессии микроРНК-21, микроРНК-133 и микроРНК-203 в моче у HS-крыс значимо повышались по сравнению с показателями контрольных животных. Высокосолевая диета приводила к уменьшению реактивности предконтрактированных фенилэфрином сосудистых сегментов на АСh. У HS-группы снижение амплитуды вазодилатации при действии АСh в условиях блокады NO-синтазы (при применении L-NIO) по сравнению с реакцией в отсутствие блокатора было меньше, чем у NS-группы: у ВБА HS-группы – на 45 %, NS-группы – на 69,4 %, у аорты HS-группы – на 49,4 %, NS-группы – на 80,7 %. В отличие от аорты в ВБА блокада Са2+-чувствительных К+-каналов (в условиях введения тетраэтиламмония, TRAM-34 или апамина) ослабляла ACh-индуцируемую релаксацию, причем у НS-крыс снижение вазодилатации было более выраженным. ЗАКЛЮЧЕНИЕ: длительное потребление высокосолевого рациона, не изменяя АД, увеличивает ИМЛЖ и уровень экспрессии микроРНК в моче, а также снижает эндотелийзависимую релаксацию сосудов, опосредованную, в частности, нарушением продукции эндотелием NO, более выраженным в аорте, чем в ВБА.</p></abstract><trans-abstract xml:lang="en"><p>THE AIM: to evaluate the effect of a high-salt diet on the level of miRNA expression in urine and the mechanisms of endothelium-dependent vascular dilatation in rats. MATERIALS AND METHODS: 20 Wistar rats were divided into two equal groups. The high salt (HS) group received 8 % NaCl in the diet, the control (NS) received the standard diet (0.34 % NaCl). After 4 months, blood pressure (BP), left ventricular mass index (IMLV) were assessed in rats, and relative expression levels of miRNA-21, miRNA-133, and miRNA-203 were determined in urine. The reactivity of the rings of the aorta and the superior mesenteric artery (SMA) to acetylcholine (ACh) was assessed in vitro in isometric mode. RESULTS: there was no significant difference between the groups in terms of mean blood pressure (p&gt; 0.05). However, in HS-rats an increase in IMLV was noted. The relative levels of expression of miRNA-21, miRNA-133, and miRNA-203 in the urine of rats fed a high-salt diet increased significantly as compared to the values of control animals. A high-salt diet resulted in a decrease in the reactivity of vascular segments precontracted with phenylephrine to ACh. A high-salt diet resulted in a decrease in the reactivity of vascular segments precontracted with phenylephrine to ACh. In the HS-group, the decrease in the amplitude of vasodilation under the action of ACh under conditions of blockade of NO-synthase (with the use of L-NIO) was less compared to the reaction in the absence of the blocker, than the NS-group: in the SMA of the HS group – by 45 %, NS group – by 69.4 %, in the aorta HS-group – by 49.4 %, NS-group – by 80.7 %. In contrast to the aorta, blockade of Ca2+-sensitive K+-channels in SMA (under the conditions of administration of tetraethylammonium, TRAM-34, or apamin) weakened ACh-induced relaxation, and in HS-rats, the decrease in vasodilation was more pronounced. CONCLUSION: consumption of a high-salt diet, without changing blood pressure, increases IMLV and the level of miRNA expression in the urine, and also reduces endothelium-dependent vascular relaxation, mediated, in particular, by impaired endothelial NO production, which is more pronounced in the aorta than in the SMA.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>высокосолевая диета</kwd><kwd>артериальное давление</kwd><kwd>экспрессия микроРНК</kwd><kwd>аорта</kwd><kwd>верхняя брыжеечная артерия</kwd><kwd>эндотелий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>high-salt diet</kwd><kwd>blood pressure</kwd><kwd>microRNA expression</kwd><kwd>aorta</kwd><kwd>superior mesenteric artery</kwd><kwd>endothelium</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Фрагмент работы по исследованию уровня экспрессии микроРНК в моче выполнен при поддержке грантом РФФИ 19-015-00221 «Физиологические механизмы адаптации сердечно-сосудистой системы и почек к высокому поступлению хлорида натрия с пищей у млекопитающих разных видов».         Работа выполнена по госзаданию №075-00776-19-02.</funding-statement><funding-statement xml:lang="en">A fragment of the work on studying the level of microRNA expression in urine was supported by RFBR grant 19-015- 00221 "Physiological mechanisms of adaptation of the cardiovascular system and kidneys to a high intake of sodium chloride with food in mammals of different species."</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">Mente A, O'Donnell M, Rangarajan S et al. Urinary sodium excretion, blood pressure, cardiovascular disease, and mortality: a community-level prospective epidemiological cohort study. Lancet 2018;392(10146):496–506. doi: 10.1016/S0140-6736(18)31376-X</mixed-citation><mixed-citation xml:lang="en">Mente A, O'Donnell M, Rangarajan S et al. 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