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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">ymj</journal-id><journal-title-group><journal-title xml:lang="ru">Якутский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Yakut Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-1905</issn><issn pub-type="epub">2312-1017</issn><publisher><publisher-name>ЯНЦ КМП</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">ymj-718</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Поиск мутаций в генах EXT1 и EXT2 у больных с множественной экзостозной хондродисплазией в РС(Я)</article-title><trans-title-group xml:lang="en"><trans-title>Search for mutations in EXT1 and EXT2 genes in patients with multiple exostatic chondrodysplasia 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>Яковлева</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovleva</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковлева Александра Еремеевна – н.с. НИЛ</p></bio><bio xml:lang="en"><p>Yakovleva Alexandra Eremeevna - Research assistant of the Research Laboratory ‘Molecular Medicine and Human Genetics’</p></bio><email xlink:type="simple">alexerem2013@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>Максимова</surname><given-names>Н. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimova</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максимова Надежда Романовна – д.м.н., руковод. НИЛ</p></bio><bio xml:lang="en"><p>Maksimova Nadezhda Romanovna - Doctor of Medical Sciences, Head of the Research Laboratory ‘Molecular Medicine and Human Genetics’</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухомясова</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhomyasova</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сухомясова Айталина Лукична – к.м.н., зам. руковод. НИЛ;</p><p>зав.</p></bio><bio xml:lang="en"><p>Sukhomyasova Aitalina Lukichna - Candidate of Medical Sciences, Deputy Head of the Research Laboratory ‘Molecular Medicine and Human Genetics’;</p><p>Head of the Medical - Genetic center</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилова</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilova</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данилова Анастасия Лукична – к.б.н., с.н.с. НИЛ</p></bio><bio xml:lang="en"><p>Danilova Anastasia Lukichna - Candidate of Biological Sciences, Senior Researcher of the Research Laboratory ‘Molecular Medicine and Human Genetics’</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петухова</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Petukhova</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петухова Диана Александровна – гл. инженер проекта НИЛ</p></bio><bio xml:lang="en"><p>Petukhova Diana Aleksandrovna – Project Engineer of the Research Laboratory ‘Molecular Medicine and Human Genetics’</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИЛ «Молекулярная медицина и генетика человека» МИ СВФУ им. М.К. Аммосова</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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>НИЛ «Молекулярная медицина и генетика человека» МИ СВФУ им. М.К. Аммосова;&#13;
Медико-генетич. центр РБ №1-НЦМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ammosov North-Eastern Federal University;&#13;
Republican Hospital # 1 - National Centre of Medicine</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>02</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>31</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яковлева А.Е., Максимова Н.Р., Сухомясова А.Л., Данилова А.Л., Петухова Д.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Яковлева А.Е., Максимова Н.Р., Сухомясова А.Л., Данилова А.Л., Петухова Д.А.</copyright-holder><copyright-holder xml:lang="en">Yakovleva A.E., Maksimova N.R., Sukhomyasova A.L., Danilova A.L., Petukhova D.A.</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://ymj.elpub.ru/jour/article/view/718">https://ymj.elpub.ru/jour/article/view/718</self-uri><abstract><p>В статье представлены результаты впервые проведенного молекулярно-генетического исследования в генах EXT1 и EXT2 у больных с множественной экзостозной хондродисплазией (МЭХД) и их родственников. Выявлена редкая нонсенс-мутация c.751С&gt;T (p.Gln251*) в экзоне 5 гена ЕХТ2 в гетерозиготном состоянии, которая явилась причиной возникновения МЭХД у больных якутской этнической группы. В настоящее время исследования по поиску мутаций в генах ЕХТ1 и ЕХТ2 нами продолжаются у остальных семей с МЭХД.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of the fisrt molecular genetic study in the EXT1 and EXT2 genes among patients with hereditary multiple exostoses (HME) ant their relatives. A rare nonsense mutation c.751С&gt;T (p.Gln251*) in exon 5 of ЕХТ2 gene in a heterozygous state was detected. That was the cause of HME among patients of the Yakut ethnic group. At present we are conducting the investigation to search mutations in ЕХТ1 and ЕХТ2 genes in other families with HME.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>EXT1</kwd><kwd>EXT2</kwd><kwd>множественная экзостозная хондродисплазия</kwd><kwd>множественные остеохондромы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>EXT1</kwd><kwd>EXT2</kwd><kwd>Hereditary Multiple Exostoses</kwd><kwd>multiple osteochondromas</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации (Тема научного проекта: «Геномика Арктики: эпидемиология, наследственность, патология», FSRG-2020-0014).</funding-statement><funding-statement xml:lang="en">The research is conducted under the state target program of the Ministry of Science and Higher Education of the Russian Federation: project FSRG-2020- 0014 “Genomic of Arctic: epidemiology, hereditary and pathology”. Molecular genetic studies were carried out in the Arctic Innovation Centre of the “Ammosov Northeastern Federal University”.</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">Кушлинский Н.Е. Генетические исследования при опухолях костей / Н.Е. Кушлинский, Ю.С. Тимофеев // Вестник ТГУ. – 2013. - Т. 18, №6. – С. 3265-3273.</mixed-citation><mixed-citation xml:lang="en">Kushlinsky N.Е. Genetic research for bone tumors / N.Е. Kushlinsky, Yu.S. Timofeev // Tomsk State University Journal. – 2013. V. 18, №6. – P. 3265-3273. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Руководство по интерпретации данных последовательности ДНК человека, полученных методами массового параллельного секвенирования (MPS) / О.П. Рыжкова, О.Л. Кардымон, Е.Б. 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