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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">neurojour</journal-id><journal-title-group><journal-title xml:lang="ru">Неврологический журнал имени Л.О. Бадаляна</journal-title><trans-title-group xml:lang="en"><trans-title>L.O. Badalyan Neurological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-8997</issn><issn pub-type="epub">2712-794X</issn><publisher><publisher-name>ФГАУ «НМИЦ здоровья детей» Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46563/2686-8997-2024-5-4-218-224</article-id><article-id custom-type="edn" pub-id-type="custom">peupee</article-id><article-id custom-type="elpub" pub-id-type="custom">neurojour-155</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>Особенности генетической диагностики мерозин-дефицитной мышечной дистрофии (клинический случай)</article-title><trans-title-group xml:lang="en"><trans-title>Features of the genetic diagnosis of merosin-deficient muscular dystrophy (a clinical case)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9828-9348</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Монахова</surname><given-names>Анастасия Вячеславовна</given-names></name><name name-style="western" xml:lang="en"><surname>Monakhova</surname><given-names>Anastasia V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Врач-невролог детского психоневрологического отделения № 2, мл. науч. сотр. отдела психоневрологии и эпилептологии Научно-исследовательского клинического института педиатрии и детской хирургии им. академика Ю.Е. Вельтищева ФГАОУ ВО «РНИМУ им. Н.И. Пирогова» Минздрава России, 125412, Москва, Россия</p><p>e-mail: stasya1803@mail.ru</p></bio><bio xml:lang="en"><p>Department of рsychoneurology and epileptology, Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University, Moscow, 125412, Russian Federation</p><p>e-mail: stasya1803@mail.ru</p></bio><email xlink:type="simple">stasya1803@mail.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/0000-0003-2635-2752</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Влодавец</surname><given-names>Дмитрий Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Vlodavets</surname><given-names>Dmitry V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доцент, канд. мед. наук, рук. Российского детского нервно-мышечного центра, ведущ. науч. сотр. отдела психоневрологии и эпилептологии, ОСП Научно-исследовательский клинический институт педиатрии и детской хирургии имени академика Ю.Е. Вельтищева ФГАОУ ВО «РНИМУ им. Н.И. Пирогова» Минздрава России, 125412, Москва, Россия</p><p>e-mail: mityaus@gmail.com</p></bio><bio xml:lang="en"><p>PhD (Medicine), Associate Professor, Head of the Russian children’s neuromuscular center, leading researcher of the Department of рsychoneurology and epileptology, Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University, Moscow, 125412, Russian Federation</p><p>e-mail: mityaus@gmail.com</p></bio><email xlink:type="simple">mityaus@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5821-9783</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Канивец</surname><given-names>Илья Вячеславович</given-names></name><name name-style="western" xml:lang="en"><surname>Kanivets</surname><given-names>Dmitry V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, рук. отдела генетики медико-генетического центра OOO «Геномед», 115419, Москва, Россия; доцент кафедры медицинской генетики ФГБОУ ДПО «РМАНПО» Минздрава России, 125993, Москва, Россия</p><p>e-mail: dr.kanivets@genomed.ru</p></bio><bio xml:lang="en"><p>PhD (Medicine), Head of the Genetics department of the Medical and genetic center of Genomed LLC, Moscow, 115419, Russian Federation; Associate Professor of the Department of medical genetics of the Russian Medical Academy of Continuing Professional Education, Moscow, 125993, Russian Federation</p><p>e-mail: dr.kanivets@genomed.ru</p></bio><email xlink:type="simple">dr.kanivets@genomed.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский клинический институт педиатрии и детской хирургии имени академика Ю.Е. Вельтищева ФГАОУ ВО «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Научно-исследовательский клинический институт педиатрии и детской хирургии имени академика Ю.Е. Вельтищева ФГАОУ ВО «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова» Минздрава России; ФГАОУ ВО «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery of the Pirogov Russian National Research Medical University; Pirogov Russian National Research Medical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">ООО «Геномед»; ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Genomed LLC, Moscow; Russian Medical Academy of Continuing Professional Education<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>04</day><month>02</month><year>2025</year></pub-date><volume>5</volume><issue>4</issue><fpage>218</fpage><lpage>224</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Монахова А.В., Влодавец Д.В., Канивец И.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Монахова А.В., Влодавец Д.В., Канивец И.В.</copyright-holder><copyright-holder xml:lang="en">Monakhova A.V., Vlodavets D.V., Kanivets D.V.</copyright-holder><license 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.neuro-journal.ru/jour/article/view/155">https://www.neuro-journal.ru/jour/article/view/155</self-uri><abstract><p>Мерозин-дефицитная мышечная дистрофия представляет собой редкое нервно-мышечное заболевание, характеризующееся диффузной мышечной гипотонией и мышечной слабостью, ригидностью позвоночника, сколиозом, контрактурами крупных суставов, нарушением дыхания, эпилептическими приступами. Заболевание наследуется по аутосомно-рецессивному типу и возникает в результате биаллельных вариантов в гене LAMA2. В данном гене описаны все типы нарушений нормальной нуклеотидной последовательности (однонуклеотидные варианты, вариации числа копий ДНК), что может приводить к трудностям генетического поиска. Совокупность особенностей фенотипа (гипомимия, вытянутое лицо, офтальмопарез, мышечная гипотония и слабость, ригидность позвоночника, контрактуры крупных суставов), результатов лабораторных и инструментальных исследований (повышение уровня активности креа­тинфосфокиназы в крови, лейкопатический паттерн на магнитно-резонансной томографии головного мозга) поможет выбрать правильную тактику диагностического поиска. В настоящей статье мы представляем клинический случай пациентки с тремя выявленными вариантами в гене LAMA2: двумя точечными заменами (c.4048C&gt;T и c.4860+75G&gt;C) и делецией 2-го и 3-го экзонов. Использование нескольких методов генетического тестирования (высокопроизводительного секвенирования, хромосомного микроматричного анализа, секвенирования по Сэнгеру) позволило установить диагноз, что привело к успешному проведению пренатальной диагностики и рождению здоровых сибсов.</p><sec><title>Участие авторов</title><p>Участие авторов:Монахова А.В. — написание текста;Влодавец Д.В. — концепция, редактирование текста;Канивец И.В. — редактирование текста.Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы заявляют об отсутствии конфликта интересов.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело спонсорской поддержки.</p></sec><sec><title>Поступила 13</title><p>Поступила 13.11.2024Принята к печати 25.11.2024Опубликована 31.01.2025</p></sec></abstract><trans-abstract xml:lang="en"><p>Merosin-deficient muscular dystrophy is a rare neuromuscular disease characterized by diffuse muscular and epileptic seizures. The disease is inherited in an autosomal recessive type and occurs as a result of biallelic variants in the LAMA2 gene. In this gene there are described all types of violations of the normal nucleotide sequence (single nucleotide variants, variations in the number of DNA copies) which can lead to difficulties in genetic search. The combination of phenotype features (hypomimia, elongated face, ophthalmoparesis, muscle hypotonia, and weakness, spinal rigidity, contractures of large joints), laboratory and instrumental research results (increased activity of creatinephosphokinase in the blood, leukopathy on brain MRI) will help you choose the right diagnostic search tactics. In this article, we present a clinical case of a patient with three identified variants in the LAMA2 gene: two point substitutions (c.4048C&gt;T and c.4860+75G&gt;C) and deletion of exons 2 and 3. The use of several methods of genetic testing (high-throughput sequencing, chromosomal microarray analysis, Sanger sequencing) allowed the establishing of the diagnosis, which subsequently led to successful prenatal diagnosis and the birth of healthy siblings.</p><sec><title>Contribution</title><p>Contribution:Monakhova A.V. — writing text;Vlodavets D.V. — concept, editing;Kanivets I.V. — editing.All co-authors — approval of the final version of the manuscript, responsibility for the integrity of all parts of the manuscript.</p></sec><sec><title>Acknowledgements</title><p>Acknowledgements. The study had no sponsorship.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Received</title><p>Received: November 13, 2024Accepted: November 11, 2024Published: January 31, 2024</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>врождённые мышечные дистрофии</kwd><kwd>врождённые миопатии</kwd><kwd>мерозин-дефицитная мышечная дистрофия</kwd><kwd>LAMA2</kwd><kwd>хромосомный микроматричный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>congenital muscular dystrophy</kwd><kwd>congenital myopathy</kwd><kwd>merosin-deficient muscular dystrophy</kwd><kwd>LAMA2</kwd><kwd>chromosome microarray analysis</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">Oliveira J., Parente Freixo J., Santos M., Coelho T. LAMA2 Muscular Dystrophy. 2012 Jun 7 [Updated 2020 Sep 17]. In: GeneReviews®. Seattle, WA: University of Washington; 1993–2024. 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