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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Neuromuscular Diseases</journal-id><journal-title-group><journal-title xml:lang="en">Neuromuscular Diseases</journal-title><trans-title-group xml:lang="ru"><trans-title>Нервно-мышечные болезни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-8721</issn><issn publication-format="electronic">2413-0443</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">525</article-id><article-id pub-id-type="doi">10.17650/2222-8721-2023-13-1-44-51</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clinical and genetic characteristics and an algorithm for the differential diagnosis of progressive muscular dystrophies that manifest after a period of normal motor development</article-title><trans-title-group xml:lang="ru"><trans-title>Клинико-генетические характеристики и алгоритм дифференциальной диагностики прогрессирующих мышечных дистрофий, манифестирующих после периода нормального моторного развития</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5819-4835</contrib-id><name-alternatives><name xml:lang="en"><surname>Sharkova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Шаркова</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Inna Valentinovna Sharkova,</bold></p><p>1 Moskvorechye St., Moscow 115522</p></bio><bio xml:lang="ru"><p><bold>Инна Валентиновна Шаркова,</bold></p><p>115522 Москва, ул. Москворечье, 1</p></bio><email>sharkova-inna@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5602-2805</contrib-id><name-alternatives><name xml:lang="en"><surname>Dadali</surname><given-names>E. L.</given-names></name><name xml:lang="ru"><surname>Дадали</surname><given-names>Е. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Moskvorechye St., Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, ул. Москворечье, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Center of Medical Genetics</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Медико-генетический научный центр им. акад. Н.П. Бочкова»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-27" publication-format="electronic"><day>27</day><month>03</month><year>2023</year></pub-date><volume>13</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>44</fpage><lpage>51</lpage><history><date date-type="received" iso-8601-date="2023-03-27"><day>27</day><month>03</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-03-27"><day>27</day><month>03</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Sharkova I.V., Dadali E.L.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Шаркова И.В., Дадали Е.Л.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Sharkova I.V., Dadali E.L.</copyright-holder><copyright-holder xml:lang="ru">Шаркова И.В., Дадали Е.Л.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://nmb.abvpress.ru/jour/article/view/525">https://nmb.abvpress.ru/jour/article/view/525</self-uri><abstract xml:lang="en"><p><bold>Background</bold>. Progressive muscular dystrophies (PMD) are a group of genetically heterogeneous diseases that manifest in the age range from early childhood to adulthood. Depending on the predominant topography of the muscular lesion, there are: limb-girdle, distal, oculopharyngeal, facial-shoulder-scapular-peroneal variants of PMD.</p><p><bold>Aim</bold>. Creation of algorithms for the differential diagnosis of PMD with multiple topography of muscle lesions.</p><p><bold>Materials and methods</bold>. We observed 192 patients aged 1.5 to 66 years with PMD with a debut after a period of normal motor development. The diagnosis was established on the basis of genealogical analysis, neurological examination, assessment of non-muscular manifestations, results of instrumental, biochemical molecular genetic studies.</p><p><bold>Results</bold>. Four groups of patients were identified, differing in the topography of muscle damage and 19 genetic variants of PMD were diagnosed. An algorithm for diagnosing PMD that manifest after a period of normal motor development is proposed, which is based on the frequency of occurrence of individual genetic variants and their proportion in the analyzed sample, the presence of major mutations in causal genes, the features of phenotypic characteristics, the gender of the patient and the possibility of conducting etiopathogenetic therapy developed by for some genetic variants.</p><p><bold>Conclusion</bold>. The use of the proposed algorithm in clinical practice can significantly reduce the economic and time costs for confirmatory molecular genetic diagnosis, and promptly recommend etiopathogenetic therapy for some genetic variants of this group of diseases. </p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Прогрессирующие мышечные дистрофии (ПМД) – группа генетически гетерогенных заболеваний, манифестирующих в возрастном диапазоне от раннего детского до взрослого возраста. В зависимости от преимущественной топографии мышечного поражения выделяют поясно-конечностные, дистальные, окулофарингеальные, лице-плече-лопаточно-перонеальные варианты ПМД.</p><p><bold>Цель работы</bold> – создание алгоритмов дифференциальной диагностики ПМД с различной топографией мышечного поражения.</p><p><bold>Материалы и методы</bold>. Под наблюдением находились 192 пациента в возрасте от 1,5 до 66 лет с ПМД с дебютом после периода нормального моторного развития. Диагноз установлен на основании результатов генеалогического анализа, неврологического осмотра, оценки внемышечных проявлений, инструментальных, биохимических молекулярно-генетических исследований.</p><p><bold>Результаты</bold>. Выделено 4 группы пациентов, различающихся по топографии поражения мышц, и диагностировано 19 генетических вариантов ПМД. Предложен алгоритм диагностики ПМД, манифестирующих после периода нормального моторного развития, в основу которого положены частоты встречаемости отдельных генетических вариантов и их долевая представленность в анализируемой выборке, наличие мажорных мутаций в каузальных генах, особенности фенотипических характеристик, пол больного и возможности проведения этиопатогенетической терапии, разработанной для некоторых генетических вариантов.</p><p><bold>Выводы</bold>. Использование предложенного алгоритма в клинической практике позволяет значительно снизить экономические и временные затраты на проведение подтверждающей молекулярно-генетической диагностики и своевременно рекомендовать проведение этиопатогенетической терапии при некоторых генетических вариантах этой группы заболеваний. </p></trans-abstract><kwd-group xml:lang="en"><kwd>diagnostic algorithm</kwd><kwd>progressive muscular dystrophy</kwd><kwd>limb-girdle muscular dystrophy</kwd><kwd>oculopharyngeal muscular dystrophy</kwd><kwd>facial-shoulder-scapular-peroneal muscular dystrophy</kwd><kwd>distal myopathy</kwd><kwd>Duchenne/Becker myodystrophy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>алгоритм диагностики</kwd><kwd>прогрессирующие мышечные дистрофии</kwd><kwd>поясно-конечностная мышечная дистрофия</kwd><kwd>окулофарингеальная мышечная дистрофия</kwd><kwd>лице-плече-лопаточно-перонеальная миодистрофия</kwd><kwd>дистальная миопатия</kwd><kwd>миодистрофия Дюшенна/Беккера</kwd></kwd-group><funding-group><funding-statement xml:lang="en">State budget financing.</funding-statement><funding-statement xml:lang="ru">Государственное бюджетное финансирование.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Emery A.E.H. 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