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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">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2024-69-6-91-96</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-2096</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>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Синдром нарушения развития и лицевой дисморфии, обусловленный мутацией в гене  MORC2</article-title><trans-title-group xml:lang="en"><trans-title>Developmental disorder and facial dysmorphia syndrome caused by a mutation  in the MORC2 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/0000-0001-7146-7220</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаева</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaeva</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николаева Екатерина Александровна — д.м.н., гл. науч. сотр. отдела клинической генетики; проф. кафедры инновационной педиатрии и детской хирургии</p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><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/0000-0002-1105-9679</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дживанширян</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dzhivanshiryan</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дживанширян Гоар Владимировна — врач педиатрического отделения врожденных и наследственных заболеваний; асс. кафедры инновационной педиатрии и детской хирургии</p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><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/0000-0002-3741-8545</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комарова</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Komarova</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Комарова Оксана Николаевна — к.м.н., врач гастроэнтеролог, диетолог клинико-диагностического отделения</p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><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/0000-0002-7291-5459</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боченков</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bochenkov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Боченков Сергей Владимирович — зав. педиатрическим отделением врожденных и наследственных заболеваний</p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><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>Никольская</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolskayav</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никольская Анна Юрьевна — врач-ординатор кафедры госпитальной педиатрии №2</p><p>117513 Москва, ул. Островитянова, д. 1</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Токарева</surname><given-names>Д. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Tokareva</surname><given-names>D. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Токарева Дарья Юрьевна — врач-ординатор кафедры госпитальной педиатрии №2</p><p>117513 Москва, ул. Островитянова, д. 1</p></bio><bio xml:lang="en"><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/0000-0001-8491-0228</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воинова</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Voinova</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воинова Виктория Юрьевна — д.м.н., зав. отделом клинической генетики, зав. кафедрой общей и медицинской генетики медико-биологического факультета Российского национального исследовательского медицинского университета им. Н.И. Пирогова</p><p>125412 Москва, ул. Талдомская, д. 2</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ОСП «Научно-исследовательский клинический институт педиатрии и детской хирургии им. акад. Ю.Е. Вельтищева» (Институт Вельтищева) ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России; ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University; Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ОСП «Научно-исследовательский клинический институт педиатрии и детской хирургии им. акад. Ю.Е. Вельтищева» (Институт Вельтищева) ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</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>2024</year></pub-date><pub-date pub-type="epub"><day>03</day><month>01</month><year>2025</year></pub-date><volume>69</volume><issue>6</issue><fpage>91</fpage><lpage>96</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/2096">https://www.ped-perinatology.ru/jour/article/view/2096</self-uri><abstract><p>Патогенные нуклеотидные варианты в гене MORC2 недавно были связаны с аксональной периферической нейропатией (болезнью Шарко–Мари–Тута, аксональным типом 2Z) и синдромом нарушений развития и роста, дизморфий лица и аксональной нейропатии (DIGFAN). Для синдрома DIGFAN характерны ранний дебют и полисистемность симптоматики, включающей, в частности, поражение органов зрения и слуха. Примерно у 30% пациентов в качестве начального возможного диагноза фигурирует митохондриальная энцефаломиопатия. У наблюдаемой нами девочки с гетерозиготной мутацией гена MORC2 подтверждено наличие синдрома DIGFAN. Клинический статус характеризовался сочетанием нарушений двигательного, психоречевого и физического развития со снижением зрения и слуха, периферической нейропатией, лицевой дисморфией, Ли-подобными изменениями при магнитно-резонансной томографии и умеренной лактатацидемией. В результате использования энерготропных препаратов, а также комплекса реабилитационных мероприятий отмечены некоторое улучшение состояния девочки и нормализация уровня лактата в крови. Подчеркнуто, что ранняя диагностика обосновывает ранее начало метаболической терапии, проведение лечебных мероприятий под наблюдением врачей-специалистов. Верификация диагноза имеет большое значение для прогнозирования течения болезни и медико-генетического консультирования пробанда и его родственников.</p></abstract><trans-abstract xml:lang="en"><p>Pathogenic nucleotide variants in the MORC2 gene have recently been linked to axonal peripheral neuropathy (Charcot–Marie–Tooth disease, axonal type 2Z) and the syndrome of developmental and growth disorders, facial dysmorphia, and axonal neuropathy (DIGFAN syndrome). DIGFAN syndrome is marked by early onset and multisystem symptoms, particularly affecting the visual and auditory organs. In approximately 30% of cases, mitochondrial encephalomyopathy is initially considered a possible diagnosis. In a girl with a heterozygous MORC2 gene mutation, the presence of DIGFAN syndrome was confirmed. Her clinical profile included motor, speech, and physical developmental delays, along with visual and auditory impairments, peripheral neuropathy, facial dysmorphia, Lee-like changes on MRI, and moderate lactic acidemia. Following metabolic therapy targeting intracellular energy exchange processes, alongside a rehabilitation program, some improvement in her condition and normalization of blood lactate levels were observed. The importance of early diagnosis is highlighted, as it supports the timely initiation of metabolic therapy and other therapeutic interventions under specialist supervision. Confirming the diagnosis is critical for anticipating disease progression and providing genetic counseling for the proband and their family.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>синдром DIGFAN</kwd><kwd>болезнь Шарко–Мари–Тута</kwd><kwd>ген MORC2</kwd><kwd>митохондриальные нарушения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>DIGFAN syndrome</kwd><kwd>Charcot–Marie–Tooth disease</kwd><kwd>MORC2 gene</kwd><kwd>mitochondrial disorders</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы благодарят семью больного ребенка за содействие в подготовке статьи.</funding-statement><funding-statement xml:lang="en">The authors thank the family of the sick child for their  assistance in preparing the article</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">Sevilla T., Lupo V., Martínez-Rubio D., Sancho P., Sivera R., Chumillas M. 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