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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">vfumed</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Северо-Восточного федерального университета имени М.К. Аммосова. Vestnik of North-Eastern Federal University. Серия «Медицинские науки. Medical Sciences»</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik of North-Eastern Federal University. Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2587-5590</issn><publisher><publisher-name>Северо-Восточный федеральный университет имени М.К. Аммосова</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25587/2587-5590-2024-4-88-98</article-id><article-id custom-type="elpub" pub-id-type="custom">vfumed-314</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>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>HEALTH SCIENCES</subject></subj-group></article-categories><title-group><article-title>НАРУШЕНИЕ СОЕДИНИТЕЛЬНОЙ ТКАНИ И МЕТАБОЛИЧЕСКИЕ ИЗМЕНЕНИЯ У ДЕТЕЙ, ПРОЖИВАЮЩИХ В РЕСПУБЛИКЕ САХА (ЯКУТИЯ)</article-title><trans-title-group xml:lang="en"><trans-title>CONNECTIVE TISSUE DISORDERS AND METABOLIC CHANGES IN CHILDREN LIVING IN THE REPUBLIC OF SAKHA (YAKUTIA)</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>Нохсорова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nokhsorova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>НОХСОРОВА Мария Артемовна – ассистент кафедры нормальной и патологической физиологии медицинского института СВФУ</p><p>г. Якутск, ул. Ойунского 27</p><p>тел: +7-924-663-09-55</p></bio><bio xml:lang="en"><p>NOKHSOROVA Maria Artemovna, Assistant Lecturer, Department of Normal and Pathological Physiology, Institute of Medicine</p><p>Yakutsk, st. Oyunskogo 27</p><p>tel: +7-924-663-09-55</p></bio><email xlink:type="simple">mnokhsorova@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>Борисова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>БОРИСОВА Наталья Владимировна –  заведующая кафедрой нормальной и патологической физиологии медицинского института СВФУ, д.м.н.</p><p>г. Якутск, ул. Ойунского 27</p><p>тел: +7-924-166-96-83</p></bio><bio xml:lang="en"><p>BORISOVA Natalia Vladimirovna, Dr. Sci. (Medicine), Head of the Department of Normal and Pathological Physiology, Institute of Medicine</p><p>Yakutsk, st. Oyunskogo 27</p><p>tel: +7-924-166-96-83</p></bio><email xlink:type="simple">borinat@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>Аммосова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ammosova</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>АММОСОВА Аэлита Михайловна – к.м.н., доцент кафедры пропедевтики детских болезней медицинского института СВФУ</p><p>г. Якутск, ул. Ойунского 27</p><p>тел: +7-914-103-99-44</p></bio><bio xml:lang="en"><p>AMMOSOVA Aelita Mikhailovna, Cand. Sci. (Medicine), Associate Professor, Department of Propaedeutics of Childhood Diseases, Institute of Medicine</p><p>Yakutsk, st. Oyunskogo 27</p><p>tel.: +7-914-103-99-44</p></bio><email xlink:type="simple">aelmma@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>СВФУ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M. K. Ammosov North-Eastern Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>09</day><month>01</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>88</fpage><lpage>98</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нохсорова М.А., Борисова Н.В., Аммосова А.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Нохсорова М.А., Борисова Н.В., Аммосова А.М.</copyright-holder><copyright-holder xml:lang="en">Nokhsorova M.A., Borisova N.V., Ammosova A.M.</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.smnsvfu.ru/jour/article/view/314">https://www.smnsvfu.ru/jour/article/view/314</self-uri><abstract><p>Представлены результаты аминокислотного состава мочи у детей с нарушениями соединительной (синдромом недифференцированная дисплазия соединительной ткани- нДСТ), проживающих в Республике Саха (Якутия). Нарушения соединительной ткани связывают со сложными метаболическими изменениями, включая метаболизм аминокислот у детей. Однако имеющиеся в настоящее время данные противоречивы. Целью данного исследования явилось комплексная оценка нарушений соединительной ткани, а также сравнительный анализ уровня содержания аминокислот в моче у здоровых детей и у детей с нДСТ. Материалы и методы. В настоящее исследование были включены 524 детей, которые входили в контрольную группу и 1266 детей с синдромом недифференцированная ДСТ, включенные в экспериментальную группу. Оценку уровня аминокислот в моче у 105 детей проводили с помощью газовой хроматографии. Статистический анализ выполнен с использованием программы SPSS, версия 22. Результаты и обсуждения. Установлено, что показатели уровня аминокислот в моче у детей позволяет получить информацию об имеющемся дисбалансе, что свидетельствует, в том числе о пищевых и метаболических нарушениях, лежащих в основе большого числа заболеваний, в том числе нарушений, связанных с соединительной тканью. Делается вывод о том, что повышенное выделение различных аминокислот с мочой у детей с синдромом недифференцированная ДСТ может быть следствием нарушения синтеза белков в результате отсутствия (или недостатка) каких-либо аминокислот в рационе питания.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of the amino acid composition of urine in children with connective tissue disorders (undifferentiated connective tissue dysplasia syndrome – uCTD) living in the Republic of Sakha (Yakutia). Connective tissue disorders are associated with complex metabolic changes, including amino acid metabolism in children. However, currently available data are contradictory. The aim of this study was a comprehensive assessment of connective tissue disorders, as well as a comparative analysis of the amino acid levels in the urine of healthy children and children with uCTD. Materials and methods. The present study included 524 children who were part of the control group and 1266 children with undifferentiated connective tissue dysplasia syndrome included in the experimental group. The level of amino acids in the urine of 105 children was assessed using gas chromatography. Statistical analysis was performed using the SPSS program, version 22. Results and discussion. It has been established that the levels of amino acids in the urine of children provide information on the existing imbalance, which indicates, among other things, nutritional and metabolic disorders underlying a large number of diseases, including disorders associated with connective tissue. It is concluded that increased excretion of various amino acids in the urine of children with undifferentiated CTD syndrome may be a consequence of impaired protein synthesis due to the absence (or deﬁciency) of any amino acids in the diet.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>соединительная ткань</kwd><kwd>аминокислоты</kwd><kwd>моча</kwd><kwd>дети</kwd><kwd>недифференцированная форма синдрома дисплазии соединительной ткани</kwd><kwd>питание</kwd><kwd>нехватка витаминов</kwd><kwd>GC-MS</kwd></kwd-group><kwd-group xml:lang="en"><kwd>connective tissue</kwd><kwd>amino acids</kwd><kwd>urine</kwd><kwd>children</kwd><kwd>undifferentiated form of connective tissue dysplasia syndrome</kwd><kwd>nutrition</kwd><kwd>vitamin deficiency</kwd><kwd>GC-MS</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">Timofeev L. F. 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