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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">problendo</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Эндокринологии</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0375-9660</issn><issn pub-type="epub">2308-1430</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/probl2017632106-109</article-id><article-id custom-type="elpub" pub-id-type="custom">problendo-8615</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>Клинические случаи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Case Reports</subject></subj-group></article-categories><title-group><article-title>Случай нефрогенного синдрома неадекватного антидиуреза, обусловленный мутацией рецептора вазопрессина 2-го типа</article-title><trans-title-group xml:lang="en"><trans-title>A case of nephrogenic syndrome of inappropriate antidiuresis caused by a mutation of the vasopressin type 2 receptor</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3832-6367</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маказан</surname><given-names>Надежда Викторовна</given-names></name><name name-style="western" xml:lang="en"><surname>Makazan</surname><given-names>Nadezhda V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант института детской эндокринологии</p></bio><bio xml:lang="en"><p>MD, PhD student</p></bio><email xlink:type="simple">Nmakazan@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/0000-0002-1346-7545</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зубкова</surname><given-names>Наталья Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Zubkova</surname><given-names>Natalia A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник отделения наследственных эндокринопатий</p></bio><bio xml:lang="en"><p>MD, PhD</p></bio><email xlink:type="simple">zunata2006@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/0000-0001-8500-4841</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюльпаков</surname><given-names>Анатолий Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Tiulpakov</surname><given-names>Anatolyi N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., заведующий отделением наследственных эндокринопатий</p></bio><bio xml:lang="en"><p>MD, PhD</p></bio><email xlink:type="simple">ant@endocrincentr.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>&lt;p&gt;ФГБУ "Эндокринологический научный центр" Минздрава России&lt;/p&gt;</institution><country>Россия</country></aff><aff xml:lang="en"><institution>&lt;p&gt;Endocrinology Research Centre&lt;/p&gt;</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>04</day><month>07</month><year>2017</year></pub-date><volume>63</volume><issue>2</issue><fpage>106</fpage><lpage>109</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Маказан Н.В., Зубкова Н.А., Тюльпаков А.Н., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Маказан Н.В., Зубкова Н.А., Тюльпаков А.Н.</copyright-holder><copyright-holder xml:lang="en">Makazan N.V., Zubkova N.A., Tiulpakov 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://www.probl-endojournals.ru/jour/article/view/8615">https://www.probl-endojournals.ru/jour/article/view/8615</self-uri><abstract><p>Нефрогенный синдром неадекватного антидиуреза (НСНАД) — редкая форма нарушения водного баланса с Х-сцепленным типом наследования, впервые описанная у двух неродственных младенцев мужского пола с тяжелой симптоматической гипонатриемией. НСНАД обусловлен активирующими мутациями гена рецептора вазопрессина 2-го типа (AVPR2), в результате которых нарушается реабсорбция свободной жидкости, что приводит к повышению осмоляльности мочи, гипоосмолярности плазмы и персистирующей гипонатриемии. Впервые в отечественной литературе приводится описание случая изолированной эуволемической гипоосмоляльной гипонатриемии у ребенка с олигодипсией при исключенном гипокортицизме и патологии со стороны почек, что — в отсутствие гиперсекреции антидиуретического гормона — позволило предположить наличие НСНАД. Молекулярно-генетическое исследование выявило новую, не описанную ранее мутацию L312S в седьмом трансмембранном домене гена AVPR2, патогенность которой была доказана при проведении функционального исследования. Приводятся клинико-лабораторные характеристики СНАД, основные принципы лечения. Данное заболевание следует учитывать при дифференциальной диагностике синдрома гипонатриемии.</p></abstract><trans-abstract xml:lang="en"><p>Nephrogenic syndrome of inappropriate antidiuresis (NSIAD) is a rare X-linked disorder of water balance, which was first described in two unrelated male infants with severe symptomatic hyponatremia. NSIAD is caused by activating mutations of the arginine vasopressin receptor 2 (AVPR2) gene, resulting in impaired reabsorption of free water, which leads to increased osmolarity of urine, plasma hypo-osmolarity, and persistent hyponatremia. We report, for the first time in the domestic literature, a case of isolated euvolemic hyposmolality hyponatremia in a child with oligodipsia. Because hypocorticism and renal pathology were excluded, and there was no antidiuretic hormone hypersecretion, NSIAD was suggested. A molecular genetic study revealed a new mutation L312S, not described earlier, in the seventh transmembrane domain of the AVPR2 gene. Pathogenicity of the mutation was proved by a functional study. We provide the clinical and laboratory characteristics of SIAD and the main principles of treatment. This disease should be considered in the differential diagnosis of hyponatremia syndrome.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипонатриемия</kwd><kwd>нефрогенный синдром неадекватного антидиуреза</kwd><kwd>Х-сцепленный тип наследования</kwd><kwd>рецептор вазопрессина 2-го типа (AVPR2)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hyponatremia</kwd><kwd>nephrogenic syndrome of inappropriate antidiuresis</kwd><kwd>X-linked inheritance</kwd><kwd>arginine vasopressin receptor 2 (AVPR2)</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">Segal A. Nephrogenic syndrome of inappropriate antidiuresis. 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Mol Pharmacol. 2010;77(5):836-845. doi: 10.1124/mol.109.061804.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
