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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 custom-type="elpub" pub-id-type="custom">nefr-212</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>Экспрессия микроРНК-21 в почечной ткани и моче у крыс с односторонней обструкцией мочеточника</article-title><trans-title-group xml:lang="en"><trans-title>Expression miRNA-21 in renal tissue and urine in rats with unilateral ureteral obstruction</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каюков</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kayukov</surname><given-names>I. G.</given-names></name></name-alternatives><email xlink:type="simple">kvaka55@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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><email xlink:type="simple">tazhim@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><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>Zaraiskii</surname><given-names>M. I.</given-names></name></name-alternatives><email xlink:type="simple">mzaraiski@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><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><email xlink:type="simple">beresnevaolga@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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><email xlink:type="simple">beresnevaolga@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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><email xlink:type="simple">prof.kucher@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">smirnov@nephrolog.ru</email><xref ref-type="aff" rid="aff-4"/></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>Institute of Physiology named after I. P. Pavlov 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>First Pavlov St.-Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><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</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>01</day><month>09</month><year>2016</year></pub-date><volume>20</volume><issue>5</issue><fpage>84</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Каюков И.Г., Иванова Г.Т., Зарайский М.И., Береснева О.Н., Парастаева М.М., Кучер А.Г., Смирнов А.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Каюков И.Г., Иванова Г.Т., Зарайский М.И., Береснева О.Н., Парастаева М.М., Кучер А.Г., Смирнов А.В.</copyright-holder><copyright-holder xml:lang="en">Kayukov I.G., Ivanova G.T., Zaraiskii M.I., Beresneva O.N., Parastaeva M.M., Kucher A.G., Smirnov A.V.</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/212">https://journal.nephrolog.ru/jour/article/view/212</self-uri><abstract><p>ЦЕЛЬ ИССЛЕДОВАНИЯ: оценить уровень экспрессии микроРНК-21 в ткани почек и моче у крыс с односторонней обструкцией мочеточника (ООМ). МАТЕРИАЛ И МЕТОДЫ. ООМ вызывали путем перевязки левого мочеточника у крыс-самцов линии Wistar (n=10). Срок наблюдения составил 14 сут после моделирования ООМ. Собирали мочу накануне оперативного вмешательства (UmiRNA21C) и за сутки до окончания эксперимента (UmiRNA21I), в течение 24 ч. При выведении животного из эксперимента производили забор пробы мочи из лоханки левой почки (UmiRNA21O) и образцов ткани левой (KmiRNA21O) и правой (KmiRNA21I) почек. Экспрессия миРНК-21 в ткани почек и моче при помощи реакции амплификации (RealTime PCR-протокол). Расчет проводился по методу 2-deltaCt. Статистический анализ результатов выполняли с использованием пакета прикладных статистических программ «Statistics v6.0 (StatSoft Inc», США). Результаты представлены как медиана [нижний - верхний квартиль]. Для попарного сравнения использовали критерий Вилкоксона для связанных групп, для оценки силы связи между изучаемыми переменными -коэффициент ранговой корреляции Спирмена. РЕЗУЛЬТАТЫ. UmiRNA21I (3,78[2,0-5,28]) и UmiRNA21O (3,78[3,25-3,82]) оказались значимо выше, чем UmiRNA21C (1,15[0,71-1,74]; р=0,0125 и р=0,0069, respectively). Величины UmiRNA21I и UmiRNA21O оказались практически одинаковыми. В почках с ООМ тканевой уровень экспрессии миРНК-21 был несколько выше, чем в контралатеральном органе (р=0,0926). Выявлена значимая прямая корреляция между KmiRNAI и KmiRNAO (RS=0,770, р=0,0092). ЗАКЛЮЧЕНИЕ. ООМ вызывает специфические изменения в экспрессии, распределении и выведении миРНК-21. Однако механизмы активации данной миРНК при почечной патологии и ее роль в развитии почечного тубулоинтерстициального фиброза требуют дальнейших исследований.</p></abstract><trans-abstract xml:lang="en"><p>AIM: to examine the effect of diets with different contents of sodium chloride on blood pressure (BP), remodeling of the myocardium and the parameters of sodium homeostasis in spontaneously hypertensive rats (SHR). MATERIAL AND METHODS. We studied two groups of animals. First group received during 2 months diet containing 0.34% NaCl, second - high salt diet (8.0 %) NaCl. The blood pressure (BP) was recorded at the end of the observation period. In serum and in daily urine sodium concentration was determined. The study of morphological changes in the myocardium was performed on the light-optical level. RESULTS. The level of BP did not differ between groups, myocardial mass index, left ventricular mass index, sodium concentration in the urine, daily urine volume and sodium excretion were higher in animals fed a diet containing 8% NaCl. In rats from this group increase of cardiomyocytes fibers hypertrophy severity, mild perivascular fibrosis and moderate hypertrophy of smooth muscle cells of the vessel walls were revealed. CONCLUSION. Results of the study suggest that the high sodium chloride diet in SHR rats leads to a unique profile of myocardial remodeling, which is not determined exclusively by the increase of blood pressure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микроРНК-21</kwd><kwd>тубулоинтерстициальный фиброз</kwd><kwd>односторонняя обструкция мочеточника</kwd></kwd-group><kwd-group xml:lang="en"><kwd>arterial hypertension</kwd><kwd>cardiac remodeling</kwd><kwd>diet</kwd><kwd>sodium chloride</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">Kataoka M, Wang DZ. Non-Coding RNAs Including miRNAs and lncRNAs in Cardiovascular Biology and Disease. Cells 2014; 3(3): 883-898</mixed-citation><mixed-citation xml:lang="en">Kataoka M, Wang DZ. Non-Coding RNAs Including miRNAs and lncRNAs in Cardiovascular Biology and Disease. 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