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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">epilepsia</journal-id><journal-title-group><journal-title xml:lang="en">Epilepsy and paroxysmal conditions</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпилепсия и пароксизмальные состояния</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2077-8333</issn><issn pub-type="epub">2311-4088</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2077-8333/epi.par.con.2023.150</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-929</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="en"><subject>CLINICAL CASES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group></article-categories><title-group><article-title>SPTAN1-associated developmental and epileptic encephalopathy</article-title><trans-title-group xml:lang="ru"><trans-title>SPTAN1-ассоциированная энцефалопатия развития и эпилептическая энцефалопатия</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9101-5213</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кожанова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhanova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кожанова Татьяна Викторовна – к.м.н., доцент кафедры неврологии, нейрохирургии и медицинской генетики им. академика Л.О. Бадаляна педиатрического факультета; ведущий научный сотрудник генетической группы научного отдела, врач – лабораторный генетик</p><p>ул. Островитянова, д. 1, Москва 117997</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Tatyana V. Kozhanova – MD, PhD, Associate Professor, Chair of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics; Laboratory Geneticist, Leading Researcher, Genetic Group, Scientific Department</p><p>Moscow</p></bio><email xlink:type="simple">vkozhanov@bk.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/0000-0002-2400-0748</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жилина</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhilina</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жилина Светлана Сергеевна – к.м.н., доцент кафедры неврологии, нейрохирургии и медицинской генетики им. академика Л.О. Бадаляна педиатрического факультета; ведущий научный сотрудник генетической группы научного отдела, врач-генетик</p><p>ул. Островитянова, д. 1, Москва 117997</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Svetlana S. Zhilina – MD, PhD, Associate Professor, Chair of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics; Geneticist, Leading Researcher, Genetic Group, Scientific Department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5970-565X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мещерякова</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Meshcheryakova</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мещерякова Татьяна Ивановна – к.м.н., ведущий научный сотрудник генетической группы научного отдела, врач-генетик</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Tatyana I. Meshcheryakova – MD, PhD, Geneticist, Leading Researcher, Genetic Group, Scientific Department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0531-9315</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукьянова</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukyanova</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лукьянова Екатерина Геннадьевна – врач-невролог</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Ekaterina G. Lukyanova – Neurologist</p><p>Moscow</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>Большакова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolshakova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Большакова Екатерина Сергеевна – врач-невролог</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Ekaterina S. Bolshakova – Neurologist</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9363-8836</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Айвазян</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Ayvazyan</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айвазян Сергей Оганесович – к.м.н., ведущий научный сотрудник генетической группы научного отдела</p><p>Scopus Author ID: 35773251400</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Sergey O. Ayvazyan – MD, PhD, Leading Researcher, Genetic Group, Scientific Department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5503-4529</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Осипова</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Osipova</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Осипова Карина Вартановна – к.м.н., заведующая психоневрологическим отделением</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Karina V. Osipova – MD, PhD, Head of Neuropsychiatric Department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2381-8609</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Власов</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vlasov</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Власов Павел Александрович – врач-невролог</p><p>ул. 4-я Тверская-Ямская, д. 16, Москва 125047</p></bio><bio xml:lang="en"><p>Pavel A. Vlasov – Neurologist</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4653-9867</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крапивкин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Krapivkin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крапивкин Алексей Игоревич – д.м.н., директор</p><p>ул. Авиаторов, д. 38, Москва 119620</p></bio><bio xml:lang="en"><p>Alexey I. Krapivkin – Dr. Med. Sc., Director</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0103-7422</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Заваденко</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavadenko</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Заваденко Николай Николаевич – д.м.н., профессор, заведующий кафедрой неврологии, нейрохирургии и медицинской генетики им. академика Л.О. Бадаляна педиатрического факультета </p><p>ул. Островитянова, д. 1, Москва 117997</p></bio><bio xml:lang="en"><p>Nikolay N. Zavadenko – Dr. Med. Sc., Professor, Chief of Chair of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Министерства здравоохранения Российской Федерации; Государственное бюджетное учреждение здравоохранения г. Москвы «Научно-практический центр специализированной медицинской помощи детям им. В.Ф. Войно-Ясенецкого» Департамента здравоохранения г. Москвы</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University; Voyno-Yasenetsky Scientific and Practical Center of Spicialized Medical Care for Children</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственное бюджетное учреждение здравоохранения г. Москвы «Научно-практический центр специализированной медицинской помощи детям им. В.Ф. Войно-Ясенецкого» Департамента здравоохранения г. Москвы</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voyno-Yasenetsky Scientific and Practical Center of Spicialized Medical Care for Children</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное автономное учреждение «Национальный медицинский исследовательский центр нейрохирургии им. академика Н.Н. Бурденко» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Burdenko National Medical Research Center for Neurosurgery</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>09</month><year>2023</year></pub-date><volume>15</volume><issue>3</issue><elocation-id>246–259</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Kozhanova T.V., Zhilina S.S., Meshcheryakova T.I., Lukyanova E.G., Bolshakova E.S., Ayvazyan S.O., Osipova K.V., Vlasov P.A., Krapivkin A.I., Zavadenko N.N., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кожанова Т.В., Жилина С.С., Мещерякова Т.И., Лукьянова Е.Г., Большакова Е.С., Айвазян С.О., Осипова К.В., Власов П.А., Крапивкин А.И., Заваденко Н.Н.</copyright-holder><copyright-holder xml:lang="en">Kozhanova T.V., Zhilina S.S., Meshcheryakova T.I., Lukyanova E.G., Bolshakova E.S., Ayvazyan S.O., Osipova K.V., Vlasov P.A., Krapivkin A.I., Zavadenko N.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.epilepsia.su/jour/article/view/929">https://www.epilepsia.su/jour/article/view/929</self-uri><abstract><p>The article presents the clinical cases of 6 patients with epilepsy, psychomotor and speech developmental delay. The heterozygous variants of the nucleotide sequence in SPTAN1 gene were detected by whole exome sequencing. Mutations in SPTAN1 gene have been described in patients with developmental and epileptic encephalopathy 5 (ОMIM: 613477). The clinical history, electroencephalographic and magnetic resonance imaging data of our patients are similar in children with variants in SPTAN1 gene described previously. It was shown that variants in SPTAN1 gene located closer to the C-terminal region are associated with a more severe phenotype, whereas the variants near the N-region – with a milder course of the disease without structural brain anomalies. However, further research is necessary in the future to better understand genotype-phenotypic correlations in SPTAN1-associated encephalopathy.</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлены клинические наблюдения 6 пациентов с эпилепсией, задержкой психомоторного и речевого развития. При проведении полноэкзомного секвенирования выявлены гетерозиготные варианты нуклеотидной последовательности в гене SPTAN1. Мутации в гене SPTAN1 описаны у пациентов с энцефалопатией развития и эпилептической энцефалопатией 5-го типа (англ. developmental and epileptic encephalopathy 5; ОMIM: 613477). Клинический анамнез, данные электроэнцефалографии и магнитно-резонансной томографии наших пациентов схожи с данными детей с вариантами в гене SPTAN1, ранее описанными в научной литературе. Показано, что варианты в гене SPTAN1, локализованные ближе к С-терминальному региону, ассоциированы с более тяжелым фенотипом, а варианты вблизи N-региона – с более легким течением заболевания без структурных аномалий головного мозга. Однако необходимы дальнейшие исследования для лучшего понимания генотип-фенотипических корреляций при SPTAN1-ассоциированной энцефалопатии.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Эпилептическая энцефалопатия</kwd><kwd>полноэкзомное секвенирование</kwd><kwd>ген SPTAN1</kwd><kwd>генотип-фенотипические корреляции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Epileptic encephalopathy</kwd><kwd>whole exome sequencing</kwd><kwd>SPTAN1 gene</kwd><kwd>genotype-phenotypic correlations</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">Berg A.T., Berkovic S.F., Brodie M.J., et al. Revised terminology and concepts for organization of seizures and epilepsies: Report of the ILAE Commission on Classification and Terminology, 2005– 2009. 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