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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">ometendo</journal-id><journal-title-group><journal-title xml:lang="ru">Ожирение и метаболизм</journal-title><trans-title-group xml:lang="en"><trans-title>Obesity and metabolism</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2071-8713</issn><issn pub-type="epub">2306-5524</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/omet13220</article-id><article-id custom-type="elpub" pub-id-type="custom">ometendo-13220</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>Нефрогенный несахарный диабет, обусловленный ранее не описанной мутацией в гене AVPR2</article-title><trans-title-group xml:lang="en"><trans-title>Nephrogenic diabetes insipidus associated with a new mutation in the AVPR2 gene</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-8061-3242</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алейникова</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleynikova</surname><given-names>Y. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алейникова Юлия Александровна - клинический ординатор</p><p>117036, Москва, ул. Дмитрия Ульянова, д. 11</p></bio><bio xml:lang="en"><p>Yulia A. Aleynikova - MD</p><p>11 Dm. Ulyanova street, 117036 Moscow</p></bio><email xlink:type="simple">aleynikova.julia@ya.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/0009-0006-5568-8748</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Берлович</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Berlovich</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Берлович Мария Сергеевна - клинический ординатор.</p><p>Москва</p></bio><bio xml:lang="en"><p>Mariia S. Berlovich - MD</p><p>Moscow</p></bio><email xlink:type="simple">berlovichmaria@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6539-466X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пигарова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pigarova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пигарова Екатерина Александровна - д.м.н.; ResearcherId: T-9424-2018; Scopus Author ID: 55655098500</p><p>Москва</p></bio><bio xml:lang="en"><p>Ekaterina A. Pigarova - MD, PhD; ResearcherId: T-9424-2018; Scopus Author ID: 55655098500</p><p>Moscow</p></bio><email xlink:type="simple">kpigarova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0327-4619</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дзеранова</surname><given-names>Л. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzeranova</surname><given-names>L. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дзеранова Лариса Константиновна - д.м.н.</p><p>Москва</p></bio><bio xml:lang="en"><p>Larisa K. Dzeranova - MD, PhD.</p><p>Moscow</p></bio><email xlink:type="simple">dzeranovalk@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/0000-0003-3396-8678</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панкратова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankratova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панкратова Мария Станиславовна - к.м.н.</p><p>Москва</p></bio><bio xml:lang="en"><p>Maria S. Pankratova - MD, PhD</p><p>Moscow</p></bio><email xlink:type="simple">ms_pankratova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ эндокринологии им. академика И.И. Дедова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.I. Dedov National Medical Research Center of Endocrinology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>09</month><year>2025</year></pub-date><volume>22</volume><issue>2</issue><fpage>134</fpage><lpage>137</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алейникова Ю.А., Берлович М.С., Пигарова Е.А., Дзеранова Л.К., Панкратова М.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Алейникова Ю.А., Берлович М.С., Пигарова Е.А., Дзеранова Л.К., Панкратова М.С.</copyright-holder><copyright-holder xml:lang="en">Aleynikova Y.A., Berlovich M.S., Pigarova E.A., Dzeranova L.K., Pankratova M.S.</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.omet-endojournals.ru/jour/article/view/13220">https://www.omet-endojournals.ru/jour/article/view/13220</self-uri><abstract><p>Несахарный диабет (НД) — это орфанное заболевание, клинически проявляющееся выраженной жаждой и экскрецией большого количества разведенной мочи. Нефрогенный НД (ННД) характеризуется резистентностью к действию антидиуретического гормона (АДГ). Наследственный ННД в 90% случаев связан с мутацией в гене рецептора вазопрессина, который экспрессируется в почках на собирательных трубочках (AVPR2); реже встречается дефект гена аквапорина 2 (AQP2). В данном клиническом случае представлена новая мутация в гене AVPR2 (гемизиготная мутация c.587T&gt;C, p.Phe196Ser), ранее не описанная в литературе, выявленная у 29-летнего мужчины. Пациент отмечает выраженную жажду и полиурию с раннего детского возраста. Диагноз нефрогенного несахарного диабета (ННД) был подтвержден в возрасте трех лет на фоне выраженного синдрома полиурии-полидипсии и проведенной пробы с сухоедением. По результатам пробы с десмопрессином прироста осмоляльности мочи выявлено не было. Данные магнитно-резонансной томографии (МРТ) головного мозга не подтвердили структурных аномалий. Генетический анализ, проведенный в 29 лет, выявил редкую мутацию, приводящую к замене аминокислоты фенилаланин (Phe) на серин (Ser) в положении 196 молекулы белка-рецептора (p.Phe196Ser). Пациенту был рекомендован прием тиазидного диуретика совместно с препаратами калия, что привело к снижению жажды и уменьшению объема выделяемой мочи. Однако спустя 2 недели лечения развилась симптоматическая гипокалиемия, что заставило прекратить прием гидрохлоротиазида, после чего уровень калия стабилизировался, но симптомы ННД вернулись. Терапия нестероидными противовоспалительными средствами (НПВС) не привела к значимому клиническому эффекту. Было принято решение возобновить прием гидрохлоротиазида в более низкой дозе в сочетании с препаратами калия и калийсберегающим диуретиком. Наблюдение за пациентом продолжается. Данный клинический случай подчеркивает важность междисциплинарного подхода к дифференциальной диагностике и лечению НД с целью предотвращения осложнений и улучшения качества жизни пациентов с синдромом полидипсии-полиурии.</p></abstract><trans-abstract xml:lang="en"><p>Diabetes insipidus (DI) is an orphan disease clinically characterized by profound thirst and the excretion of large volumes of dilute urine. Nephrogenic diabetes insipidus (NDI) is characterized by resistance to the action of antidiuretic hormone (ADH). Hereditary NDI is associated with mutations in the vasopressin receptor gene, AVPR2, in 90% of cases; less frequently, defects in the aquaporin-2 gene (AQP2) are observed. This clinical case presents a novel mutation in the AVPR2 gene (hemizygous mutation c.587T&gt;C, p.Phe196Ser), which has not been previously documented in the literature, identified in a 29-year-old male. The patient reports significant thirst and polyuria since early childhood. The diagnosis of nephrogenic diabetes insipidus (NDI) was confirmed at three years of age against a backdrop of severe polyuria-polydipsia syndrome, aided by a water deprivation test. No increase in urine osmolality was observed following the administration of desmopressin. Magnetic resonance imaging (MRI) of the brain did not reveal any structural anomalies. Genetic analysis conducted at the age of 29 identified a rare mutation resulting in the substitution of phenylalanine (Phe) with serine (Ser) at position 196 of the receptor protein (p.Phe196Ser). The patient was advised to take a thiazide diuretic alongside potassium supplements, which led to a reduction in thirst and a decrease in urine output. However, after two weeks of treatment, symptomatic hypokalemia developed, necessitating the discontinuation of hydrochlorothiazide. Following this cessation, potassium levels stabilized, but NDI symptoms recurred. Therapy with non-steroidal anti-inflammatory drugs (NSAIDs) did not yield significant clinical effects. A decision was made to resume hydrochlorothiazide at a lower dose, in combination with potassium supplements and a potassium-sparing diuretic. The patient is under ongoing observation. This clinical case emphasizes the importance of an interdisciplinary approach in the differential diagnosis and treatment of diabetes insipidus, aimed at preventing complications and improving the quality of life for patients with polydipsia-polyuria syndrome.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нефрогенный несахарный диабет</kwd><kwd>полидипсия</kwd><kwd>полиурия</kwd><kwd>вазопрессин</kwd><kwd>мутация</kwd><kwd>AVPR2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nephrogenic diabetes insipidus</kwd><kwd>polydipsia</kwd><kwd>polyuria</kwd><kwd>vasopressins</kwd><kwd>mutation</kwd><kwd>AVPR2</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по инициативе авторов без привлечения финансирования</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">Fenske W, Allolio B. 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