<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">Russian Journal of Child Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Child Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Русский журнал детской неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-8803</issn><issn publication-format="electronic">2412-9178</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">409</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2022-17-3-79-84</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Dystonia type 28 with early onset (DYT-KMT2B): a clinical case</article-title><trans-title-group xml:lang="ru"><trans-title>Дистония 28-го типа с ранним началом (DYT-KMT2B): клинический случай</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9333-3271</contrib-id><name-alternatives><name xml:lang="en"><surname>Bulanova</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Буланова</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Vera Aleksandrovna Bulanova </p><p>5 Revolutionary St., Yaroslavl 150000</p></bio><bio xml:lang="ru"><p>Вера Александровна Буланова</p><p>150000 Ярославль, ул. Революционная, 5</p></bio><email>vabulanova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5060-801X</contrib-id><name-alternatives><name xml:lang="en"><surname>Bykanova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Быканова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>5 Revolutionary St., Yaroslavl 150000</p></bio><bio xml:lang="ru"><p>150000 Ярославль, ул. Революционная, 5</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuleva</surname><given-names>N. А.</given-names></name><name xml:lang="ru"><surname>Кулева</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>31в Tutaevskoe Shosse, Yaroslavl 150042</p></bio><bio xml:lang="ru"><p>150042 Ярославль, Тутаевское шоссе, 31в</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Department of Nervous Diseases with Medical Genetics and Neurosurgery, Yaroslavl State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Кафедра нервных болезней с медицинской генетикой и нейрохирургией ФГБОУ ВО «Ярославский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Medical and Genetic Consultation, Yaroslavl Regional Perinatal Center</institution></aff><aff><institution xml:lang="ru">Медико-генетическая консультация ГБУЗ ЯО «Областной перинатальный центр»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2022</year></pub-date><volume>17</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>79</fpage><lpage>84</lpage><history><date date-type="received" iso-8601-date="2022-12-17"><day>17</day><month>12</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-12-17"><day>17</day><month>12</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, АБВ-пресс</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</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://rjdn.abvpress.ru/jour/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://rjdn.abvpress.ru/jour/article/view/409">https://rjdn.abvpress.ru/jour/article/view/409</self-uri><abstract xml:lang="en"><p>This article presents a clinical observation of a patient with a rare form of primary dystonia – type 28 dystonia associated with a heterozygous mutation in the <italic>KMT2B</italic><italic> </italic>gene (OMIM: 617284) for the first time in the Russian literature. The disease started at the age of 6 years with unilateral dystonia of the foot, acquired the features of generalized dystonia in the 1st year from the beginning. The mutation found in proband (chr19:36229249GC&gt;G) was not described earlier. Dystonia was insensitive to levodopa, the effect of botulinum toxin treatment was insufficient; a notable clinical result has been achieved with deep brain stimulation (DBS).</p></abstract><trans-abstract xml:lang="ru"><p>В статье впервые в отечественной литературе представлено клиническое наблюдение пациента с редкой формой первичной дистонии – дистонией 28-го типа, ассоциированной с гетерозиготной мутацией в гене <italic>KMT2B </italic>(OMIM: 617284). заболевание дебютировало в возрасте 6 лет с унилатеральной дистонии стопы и приобрело черты генерализованной дистонии в течение одного года. Обнаруженная у пробанда мутация (chr19:36229249GC&gt;G) не была описана ранее. Дистония оказалась нечувствительной к препарату леводопы, эффект ботулинотерапии был недостаточным, заметный клинический результат был достигнут при глубокой стимуляции мозга (DBS).</p></trans-abstract><kwd-group xml:lang="en"><kwd>primary dystonia</kwd><kwd>mutation of the gene KMTB2</kwd><kwd>DYT-KMT2B</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>первичная дистония</kwd><kwd>мутация гена KMTB2</kwd><kwd>DYT-KMT2B</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Bobylova M.Yu., Kakaulina V.S., Ilyina E.S. et al. Dystonia in children (a lecture). Russkij zhurnal detskoj nevrologii = Russian Journal of Child Neurology 2014;9(4):49–58. (In Russ.). DOI: 10.17650/2073-8803-2014-9-4-49-58</mixed-citation><mixed-citation xml:lang="ru">Бобылова М.Ю., Какаулина В.С., Ильина Е.С. и др. Дистония у детей (лекция). Русский журнал детской неврологии 2014;9(4):49–58. DOI: 10.17650/2073-8803-2014-9-4-49-58</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Guzeva V.I. Primary dystonia in children. Federal Guide to Child Neurology. Ed. by V.I. Guzeva. Moscow: LLC “MK”, 2016. Pp. 444–453.</mixed-citation><mixed-citation xml:lang="ru">Гузева В.И. Первичная дистония у детей. Федеральное руководство по детской неврологии. Под ред. В.И. Гузевой. М.: ООО «МК», 2016. С. 444–453.</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Krasnov М.Yu., Timerbaeva S.L., Illarioshkin S.N. Genetics of hereditary forms of dystonia. Annaly clinicheskoy i eksperimentalnoy nevrologii = Annals of Clinical and Experimental Neurology 2013;7(2):55–62. (In Russ.). Available at: http://www.annalynevrologii.ru/Tom7-2-2013p.pdf</mixed-citation><mixed-citation xml:lang="ru">Краснов М.Ю., Тимербаева С.Л., Иллариошкин С.Н. Генетика наследственных форм дистонии. Анналы клинической и экспериментальной неврологии 2013;7(2):55–62. Доступно по: http://www.annaly-nevrologii.ru/Tom7-2-2013p.pdf</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><mixed-citation>Abela L., Kurian M.A. KMT2B-Related Dystonia. In: GeneReviews®. Seattle: University of Washington, 1993–2020. Avaialble at: https://www.ncbi.nlm.nih.gov/books/NBK493766/</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Albanese A., Asmus F., Bhatia K.P. et al. EFNS guidelines on diagnosis and treatment of primary dystonias. Eur J Neurol 2011;18(1):5–18. DOI: 10.1111/j.1468-1331.2010.03042.x</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Barbagiovanni G., Germain P.L., Zech M. et al. KMT2B is selectively required for neuronal transdifferentiation, and its loss exposes dystonia candidate genes. Cell Rep 2018;25(4):988–1001. DOI: 10.1016/j.celrep.2018.09.067</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Barbagiovanni G., Gabriele M., Testa G. KMT2B and neuronal transdifferentiation: bridging basic chromatin mechanisms to disease action ability. Neurosci Insights 2020;15:1–4. DOI: 10.1177/2633105520928068</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Burke R.E., Fahn S., Marsden C.D. et al. Validity and reliability of a rating scale for the primary torsion dystonias. Neurology 1985;35(1):73–7. DOI: 10.1212/wnl.35.1.73</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Carecchio M., Invernizzi F., Gonzàlez-Latapi P. et al. Frequency and phenotypic spectrum of KMT2B dystonia in childhood: A single-center cohort study. Mov Disord 2019;34(10):1516–27. DOI: 10.1002/mds.27771</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Consky E.S., Basinski A., Belle L. et al. The Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS): assessment of validity and inter-rater reliability. Neurology 1990;40(Suppl 1):445.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Defazio G., Abbruzzese G., Livrea P., Berardelli A. Epidemiology of primary dystonia. Lancet Neurol 2004;3:673–8. DOI: 10.1016/S1474-4422(04)00907-X</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Lohmann K., Klein C. Update on the genetics of dystonia. Curr Neurol Neurosci Rep 2017;17(3):17–26. DOI:10.1007/s11910-017-0735-0</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Marras C., Lang A., van de Warrenburg B.P. et al. Nomenclature of genetic movement disorders: recommendations of the international Parkinson and movement disorder society task force. Mov Disord 2016;31(4):436–57. DOI: 10.1002/mds.26527</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Meyer E., Carss K.J., Rankin J. et al. Mutations in the histone methyltransferase gene KMT2B cause complex early-onset dystonia. Nat Genet 2017;49(2):223–37. DOI: 10.1038/ng.3740</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Kyu M.J., Kim A.R., Ahn J.H. et al. Successful pallidal stimulation in a patient with KMT2B-related dystonia. J Mov Disord 2020;13(2):154–8. DOI: 10.14802/jmd.19087</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Shen E., Shulha H., Weng Z., Akbarian S. Regulation of histone H3K4 methylation in brain development and disease. Philos Trans R Soc Lond Ser B Biol Sci 2014;369(1652). DOI: 10.1098/rstb.2013.0514</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Wider C., Melquist S., Hauf M. et al. Study of a Swiss dopa-responsive dystonia family with a deletion in GCH1: redefining DYT14 as DYT5. Neurology 2008;70(16 Pt 2):1377–83. DOI: 10.1212/01.wnl.0000275527.35752.c5</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Zech M., Boesch S., Maier E.M. et al. Haploinsufficiency of KMT2B, encoding the lysine-specific histone methyltransferase 2b, results in early-onset generalized dystonia. Am J Hum Genet 2016;99(6):1377–87. DOI: 10.1016/j.ajhg.2016.10.010</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Zech M., Lam D., Winkelmann J. Update on KMT2B-related dystonia. Curr Neurol Neurosci Rep 2019;19(11):92. DOI: 10.1007/s11910-019-1007-y</mixed-citation></ref></ref-list></back></article>
