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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2022.09.61-64</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2151</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Молекулярно-генетическая диагностика болезни Тея-Сакса с поздней клинической манифестацией</article-title><trans-title-group xml:lang="en"><trans-title>Molecular genetic diagnostics of Tay-Sachs disease with late clinical manifestation</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>Кадырова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kadyrova</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">holmesnelly@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>Иванов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>E. 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>Шмунк</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shmunk</surname><given-names>I. V.</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>Побединская</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pobedinskaya</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>Пушкарев</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Pushkarev</surname><given-names>V. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГАУЗ «Челябинская областная детская клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chelyabinsk Regional Pediatric Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГАУЗ «Челябинская областная детская клиническая больница»;  Медико-генетический центр «Проген»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chelyabinsk Regional Pediatric Hospital; Medical Genetic Center PROGEN</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>08</day><month>12</month><year>2022</year></pub-date><volume>21</volume><issue>9</issue><fpage>61</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кадырова Н.В., Иванов Е.А., Шмунк И.В., Побединская А.И., Пушкарев В.П., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Кадырова Н.В., Иванов Е.А., Шмунк И.В., Побединская А.И., Пушкарев В.П.</copyright-holder><copyright-holder xml:lang="en">Kadyrova N.V., Ivanov E.A., Shmunk I.V., Pobedinskaya A.I., Pushkarev V.P.</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.medgen-journal.ru/jour/article/view/2151">https://www.medgen-journal.ru/jour/article/view/2151</self-uri><abstract><p>В исследовании представлен редкий клинический случай болезни Тея-Сакса (БТС) с поздней манифестацией у 34-летней женщины смешанного этнического происхождения (русского, украинского, мордовского и удмуртского) с клиникой спинальной амиотрофии и спиноцеребеллярной атаксии. Было проведено таргетное секвенирование следующего поколения кодирующих регионов 300 генов, клинически значимых для развития наследственных нервно-мышечных заболеваний, включая ген HEXA. Были идентифицированы 2 патогенных варианта в гене HEXA - NM_000520.6(HEXA): c.2T&gt;C (p.Met1Thr) и c.805G&gt;A (p.Gly269Ser). Присутствие данных вариантов в геноме пациентки было подтверждено при помощи секвенирования по Сэнгеру. Хорошо известно, что мутация Gly269Ser ассоциирована с БТС с поздней манифестацией. Фенотипы пациентов с поздней манифестацией БТС существенно отличаются от младенческой и ювенильной форм, меньше известны клиницистам и хуже диагностируются. Авторы надеются, что описание этого случая дополнит недостающую информацию и поможет в диагностике БТС с поздней манифестацией.</p></abstract><trans-abstract xml:lang="en"><p>Rare clinical case of Tay-Sachs disease (TSD) with late clinical manifestation in a 33-year-old female of mixed ethnicity (Russian, Ukrainian, Mordovian, Udmurt) with symptoms of spinal amyotrophy and spinocerebellar ataxia is presented. Targeted NGS of coding regions of 300 genes clinically significant for the development of hereditary neuromuscular diseases, including gene HEXA, was carried out. Two pathogenic variants in the HEXA gene have been identified - NM_000520.6(HEXA): c.2T&gt;C (p.Met1Thr) and c.805G&gt;A (p.Gly269Ser). Both variants were validated by Sanger sequencing. It is well known that Gly269Ser mutation associated with the adult onset of symptoms. The phenotypes of patients with late manifestation of TSD differ significantly from infant and juvenile forms, are less known to clinicians and are worse diagnosed. The authors hope that the description of this case will complement the missing information and help in the diagnosis of TSD with late clinical manifestation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лизосомные болезни накопления</kwd><kwd>болезнь Тея-Сакса</kwd><kwd>ген HEXA</kwd><kwd>NGS-диагностика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Lysosomal storage diseases</kwd><kwd>Tay-Sachs disease</kwd><kwd>gene HEXA</kwd><kwd>NGS-diagnostics</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">Соловьева В.В., Шаймарданова А.А., Чулпанова Д.С. и др. Болезнь Тея-Сакса: диагностика, моделирование и подходы к терапии. 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