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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">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2022-6-63-66</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-1922</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 OBSERVATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group></article-categories><title-group><article-title>Gerstmann–Sträussler–Scheinker syndrome with early-onset spinocerebellar ataxia phenotype</article-title><trans-title-group xml:lang="ru"><trans-title>Синдром Герстманна–Штраусслера–Шейнкера с фенотипом ранней спиноцеребеллярной атаксии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3179-7668</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нужный</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Nuzhnyi</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Петрович Нужный</p><p>125367, Москва, Волоколамское шоссе, 80</p></bio><bio xml:lang="en"><p>Evgenii Petrovich Nuzhnyi</p><p>125367, Moscow, Volokolamskoe shosse, 80</p></bio><email xlink:type="simple">enuzhny@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абрамычева</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramycheva</surname><given-names>N. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>125367, Москва, Волоколамское шоссе, 80</p></bio><bio xml:lang="en"><p>125367, Moscow, Volokolamskoe shosse, 80</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/0000-0001-8070-7644</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федотова</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedotova</surname><given-names>E. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>125367, Москва, Волоколамское шоссе, 80</p></bio><bio xml:lang="en"><p>125367, Moscow, Volokolamskoe shosse, 80</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/0000-0002-2704-6282</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иллариошкин</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Illarioshkin</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>125367, Москва, Волоколамское шоссе, 80</p></bio><bio xml:lang="en"><p>125367, Moscow, Volokolamskoe shosse, 80</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научный центр неврологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Center of Neurology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>19</day><month>12</month><year>2022</year></pub-date><volume>14</volume><issue>6</issue><fpage>63</fpage><lpage>66</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Nuzhnyi E.P., Abramycheva N.Y., Fedotova E.Y., Illarioshkin S.N., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Нужный Е.П., Абрамычева Н.Ю., Федотова Е.Ю., Иллариошкин С.Н.</copyright-holder><copyright-holder xml:lang="en">Nuzhnyi E.P., Abramycheva N.Y., Fedotova E.Y., Illarioshkin S.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://nnp.ima-press.net/nnp/article/view/1922">https://nnp.ima-press.net/nnp/article/view/1922</self-uri><abstract><p>The article presents a description of the family case of rare hereditary prion disease – Gerstmann–Sträussler–Scheinker syndrome with a verified p.P102L mutation in the PRNP gene. The clinical picture was represented by progressive cerebellar ataxia, pyramidal signs, bulbar syndrome, and neuropathy, which made it possible to establish a preliminary diagnosis of autosomal dominant spinocerebellar ataxia. Subsequently, the final diagnosis was verified using the massive parallel sequencing technology. The features of this observation are the variable age of onset within the family, with the unusually early age of the disease onset in the proband (age of 25 years), the absence of cognitive impairment, as well as the absence of pathological changes in the electroencephalography and brain MRI study. The possible modifying role of polymorphism in codon 129 of the PRNP gene (129Val) in the disease phenotype formation, as well as the clinical findings and diagnostic methods of this syndrome are discussed.</p></abstract><trans-abstract xml:lang="ru"><p>В статье приведено описание семейного случая редкого наследственного прионного заболевания – синдрома Герстманна–Штраусслера–Шейнкера с верифицированной мутацией p.P102L в гене прионного белка PRNP. Клиническая картина была представлена прогрессирующей мозжечковой атаксией, пирамидным синдромом, бульбарными нарушениями и полиневропатией, что позволило установить предварительный диагноз «аутосомно-доминантная спиноцеребеллярная атаксия». В дальнейшем окончательный диагноз был верифицирован с использованием технологии массового параллельного секвенирования. Особенностями данного наблюдения являются вариабельный возраст дебюта в пределах одной семьи, в том числе необычно ранний возраст начала заболевания у пробанда (25 лет), отсутствие когнитивных нарушений, а также патологических изменений при проведении электроэнцефалографии и магнитно-резонансной томографии головного мозга. Обсуждается возможная модифицирующая роль полиморфизма в кодоне 129 гена PRNP (129Val) в формировании фенотипа заболевания, анализируются особенности клинической картины и методов диагностики данного синдрома.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синдром Герстманна–Штраусслера–Шейнкера</kwd><kwd>прионный белок</kwd><kwd>ген PRNP</kwd><kwd>спиноцеребеллярная атаксия</kwd><kwd>мутация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Gerstmann–Sträussler–Scheinker syndrome</kwd><kwd>prion protein</kwd><kwd>PRNP gene</kwd><kwd>spinocerebellar ataxia</kwd><kwd>mutation</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">Kovacs GG, Puopolo M, Ladogana A, et al; EUROCJD. Genetic prion disease: the EUROCJD experience. Hum Genet. 2005 Nov;118(2):166-74. doi:10.1007/s00439-005-0020-1. 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