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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">nid</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология и диализ</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology and Dialysis</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1680-4422</issn><issn pub-type="epub">2618-9801</issn><publisher><publisher-name>Российское диализное общество</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">nid-1016</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Фракционная экскреция натрия и литогенные субстанции в моче у детей с уролитиазом</article-title><trans-title-group xml:lang="en"><trans-title>Fractional excretion of sodium and urine lithogenic factors in children with urolithiasis</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>Мазо</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazo</surname><given-names>A. M.</given-names></name></name-alternatives><email xlink:type="simple">sasha.mazo@gmail.com</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>Акопян</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Akopyan</surname><given-names>A. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Зоркин</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Zorkin</surname><given-names>S. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Васильева</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiljeva</surname><given-names>E. M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Маянский</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mayanskiy</surname><given-names>N. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Закалюкин</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zacalucin</surname><given-names>R. M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Цыгин</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsygin</surname><given-names>A. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>НЦЗД РАМН</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>Институт кристаллографии РАН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2010</year></pub-date><pub-date pub-type="epub"><day>17</day><month>06</month><year>2025</year></pub-date><volume>12</volume><issue>4</issue><fpage>299</fpage><lpage>303</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мазо А.М., Акопян А.И., Зоркин С.Н., Васильева Е.М., Маянский Н.А., Закалюкин Р.М., Цыгин А.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Мазо А.М., Акопян А.И., Зоркин С.Н., Васильева Е.М., Маянский Н.А., Закалюкин Р.М., Цыгин А.Н.</copyright-holder><copyright-holder xml:lang="en">Mazo A.M., Akopyan A.I., Zorkin S.N., Vasiljeva E.M., Mayanskiy N.A., Zacalucin R.M., Tsygin A.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.nephro.ru/jour/article/view/1016">https://journal.nephro.ru/jour/article/view/1016</self-uri><abstract><p>Целью данной работы являлось исследование фракционной экскреции натрия и других электролитов у детей с уролитиазом и соматически здоровых детей. В исследование было включено 66 детей: 40 детей с уролитиазом (28 мальчиков и 12 девочек) в возрасте от 7 месяцев до 16 лет (в среднем 6,9 ± 4,9 лет) и 26 соматически здоровых ребенка (16 мальчиков и 10 девочек) в возрасте от 6 месяцев до 16 лет (в среднем 7,3 ± 5,0 лет). Все дети находились на одинаковой диете с содержанием соли не более 3 г/сут. Состав камней был исследован методом рентгенофазового анализа на дифрактометре Shimadzu XRD-6000. Биохимический анализ крови с определением креатинина, кальция, мочевой кислоты, фосфора, магния, натрия, калия и вторая утренняя порция мочи с определением креатинина, кальция, мочевой кислоты, фосфора, магния, натрия, калия и оксалатов были исследованы у 66 детей. Метаболические нарушения выявлены у 35% детей, при этом только у 10% была выявлена гиперкальциурия. В составе почечных конкрементов преобладали кальций-оксалатные камни (61%). Выявлено достоверное повышение фракционной экскреции натрия у детей с уролитиазом по сравнению со здоровыми (0,88 ± 1,05% и 0,31 ± 0,20%, p &lt; 0,01), при этом фракционная экскреция натрия не зависела от состава конкрементов. Была получена прямая корреляция между фракционной экскрецией натрия и экскрецией оксалатов только в группе детей с уролитиазом (r = 0,62, p &lt; 0,01). Корреляции между экскрецией натрия и кальция ни в одной группе найдено не было. Учитывая значимость натриуреза в формировании камней, мы рекомендуем низкосолевую диету для предотвращения рецидивов уролитиаза.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to investigate the fractional excretion of sodium and other electrolytes in children with urolithiasis compared to healthy children. The study included 66 children: 40 of them had urolithiasis (28 boys and 12 girls) from 7 months to 16 years old (mean 6,9 ± 4,9 years) and 26 healthy children (16 boys and 12 girls) from 6 months to 16 years old (mean 7,3 ± 5,0 years old). All children got the same diet with a salt content below 3 g/day. Stone samples (30) were examined by X-ray diffraction method using a Shimadzu XRD-6000 diffractometer. Spot urine samples and serum specimens were analyzed for sodium, potassium, calcium, phosphate, magnesium, uric acid, creatinine and urine oxalate levels. Metabolic disorders were revealed in 35% of children, hypercalciuria was found only in 10% of children. The most common stone component was calcium oxalate (61%). We found that the fractional excretion of sodium was significantly increased in children with nephrolithiasis compared to healthy children (0,88 ± 1,05% vs 0,31 ± 0,20%, p &lt; 0,01). The fractional excretion of sodium did not depend on stone composition. A strong correlation between the fractional excretion of sodium and excretion of oxalate was revealed in children with nephrolithiasis only (r = 0,62, p &lt; 0,01). No correlation between the fractional excretion of sodium and excretion of calcium was revealed in any group of children. Due to importance of the sodium excretion in stone formation we recommend to reduce salt intake for preventing stone recurrence in children.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уролитиаз</kwd><kwd>фракционная экскреция натрия</kwd><kwd>состав конкрементов</kwd><kwd>urolithiasis</kwd><kwd>fractional excretion of sodium</kwd><kwd>stone composition</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">Детская нефрология: практическое руководство/ Под ред. Э. Лойманна, А.Н. Цыгина, А.А. Саркисяна. 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