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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2025.09.103-106</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3189</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Синдром Питта-Хопкинса: носительство патогенных и вероятно-патогенных генетических вариантов у здоровых людей</article-title><trans-title-group xml:lang="en"><trans-title>Pitt-Hopkins Syndrome: Pathogenic and Likely Pathogenic Genetic Variants in Healthy Carriers</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>354340, Краснодарский край, федеральная территория «Сириус», Олимпийский пр., д.1</p></bio><bio xml:lang="en"><p>1, Olympic Ave., Sirius Federal Territory, Krasnodar region,354340</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сокруто</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Socruto</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск, ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</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>Шаврак</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shavrak</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск, ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</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>Кондакова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondakova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>354340, Краснодарский край, федеральная территория «Сириус», Олимпийский пр., д.1; 603022, г.Нижний Новгород, пр.Гагарина, д. 23</p></bio><bio xml:lang="en"><p>1, Olympic Ave., Sirius Federal Territory, Krasnodar region,354340; 23, Prospekt Gagarina, Nizhny Novgorod, 603022</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>Скрябин</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skryabin</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск, ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АНОО ВО Научно-технологический университет «Сириус»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sirius University of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ Томский национальный исследовательский медицинский центр Российской академии наук, Научно-исследовательский институт медицинской генетики</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk National Research Medical Center of the Russian Academy of Sciences, Research Institute of Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>АНОО ВО Научно-технологический университет «Сириус»; ФГБНУ Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sirius University of Science and Technology;  Lobachevsky State University of Nizhny Novgorod</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2025</year></pub-date><volume>24</volume><issue>9</issue><fpage>103</fpage><lpage>106</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савченко Р.Р., Сокруто Е.С., Шаврак В.Е., Кондакова Е.В., Скрябин Н.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Савченко Р.Р., Сокруто Е.С., Шаврак В.Е., Кондакова Е.В., Скрябин Н.А.</copyright-holder><copyright-holder xml:lang="en">Savchenko R.R., Socruto E.S., Shavrak V.E., Kondakova E.V., Skryabin N.A.</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://www.medgen-journal.ru/jour/article/view/3189">https://www.medgen-journal.ru/jour/article/view/3189</self-uri><abstract><p>Синдром Питта-Хопкинса – редкое заболевание с аутосомно-доминантным типом наследования, характеризующееся комплексом патологических проявлений, включая умственную отсталость, нарушение речи, выраженную задержку когнитивного и моторного развития, а также специфические дисморфические черты лица. Заболевание обусловлено изменениями в нуклеотидной последовательности гена TCF4, кодирующего транскрипционный фактор, имеющий критическое значение для развития и функционирования нервной системы. Хотя спектр патогенных вариантов в TCF4 подробно охарактеризован, феномен их бессимптомного носительства не обсуждается в литературе. В данной работе с использованием баз данных ClinVar и gnomAD идентифицировано 7 патогенных или вероятно патогенных вариантов, встречающихся у здоровых людей: rs1568303086, rs751190049, rs121909121, rs863224934, rs1230192802, rs895426748, rs1603624808. Полученные данные свидетельствуют о необходимости функционального анализа и возможной реклассификации варианта rs1230192802. Выявленные случаи подчеркивают роль вариабельной экспрессивности вариантов в гене TCF4.</p></abstract><trans-abstract xml:lang="en"><p>Pitt-Hopkins syndrome is a rare autosomal dominant disorder characterized by multiple pathological manifestations, including intellectual disability, speech impairment, significant cognitive and motor developmental delays, and distinctive facial dysmorphisms. The condition is caused by alterations in the nucleotide sequence of the TCF4 gene, which encodes a transcription factor critical for nervous system development and function. Although the spectrum of pathogenic variants in TCF4 has been well characterized, their asymptomatic carriage remains poorly documented in the literature. In this study, using the ClinVar and gnomAD databases, we identified seven pathogenic or likely pathogenic variants in healthy individuals: rs1568303086, rs751190049, rs121909121, rs863224934, rs1230192802, rs895426748, and rs1603624808. These findings highlight the need for functional analysis and potential reclassification of the rs1230192802 variant. The observed cases underscore the variable expressivity of TCF4 variants.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синдром Питта-Хопкинса</kwd><kwd>патогенные варианты</kwd><kwd>TCF4</kwd><kwd>здоровые носители</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pitt-Hopkins syndrome</kwd><kwd>pathogenic variants</kwd><kwd>TFC4</kwd><kwd>healthy carriers</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке гранта РНФ № 23-75-01138.</funding-statement><funding-statement xml:lang="en">The study was supported by the Russian Science Foundation (project No. 23-75-01138).</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">Conidi M.E., Bernardi L., Puccio G., et al. 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