<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.25557/2073-7998.2025.11.116-119</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3321</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 Шерешевского–Тернера, обусловленный псевдоизодицентрической Хp хромосомой, содержащей две копии гена SHOX</article-title><trans-title-group xml:lang="en"><trans-title>Turner syndrome caused by a pseudo-isodicentric Xp chromosome containing two copies of the SHOX gene</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>Трохова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Trokhova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</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>Соловова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solovova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</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>Штаут</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Shtaut</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</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>Маркова</surname><given-names>Ж. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Markova</surname><given-names>Zh. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</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>Шилова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shilova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</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>Черных</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernykh</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, ул. Москворечье, д.1</p></bio><bio xml:lang="en"><p>1, Moskvorechie st., Moscow, 115522</p></bio><email xlink:type="simple">chernykh@med-gen.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Медико-генетический научный центр имени академика Н.П. Бочкова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Centre for Medical Genetic</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2025</year></pub-date><volume>24</volume><issue>11</issue><fpage>116</fpage><lpage>119</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Трохова Е.С., Соловова О.А., Штаут М.И., Маркова Ж.Г., Шилова Н.В., Черных В.Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Трохова Е.С., Соловова О.А., Штаут М.И., Маркова Ж.Г., Шилова Н.В., Черных В.Б.</copyright-holder><copyright-holder xml:lang="en">Trokhova E.S., Solovova O.A., Shtaut M.I., Markova Z.G., Shilova N.V., Chernykh V.B.</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/3321">https://www.medgen-journal.ru/jour/article/view/3321</self-uri><abstract><p>В статье описан клинический случай синдрома Шерешевского-Тернера (СШТ) у пациентки 15 лет с мозаицизмом по псевдоизодицентрической Хp хромосоме. Заболевание характеризовалось задержкой полового созревания, первичной аменореей, дисгенезией гонад, гипоплазией матки, гипергонадотропным гипогонадизмом и наличием стигм дизэмбриогенеза. Проведено комплексное цитогенетическое, молекулярно-цитогенетическое и молекулярно-генетическое исследование. В лимфоцитах и клетках буккального эпителия обнаружен мозаицизм с двумя клеточными линиями: один – с моносомией по Х-хромосоме, другой – с одной нормальной Х и одной псевдоизодицентрической Хp хромосомой, несущей 2 копии гена SHOX. Хромосомный микроматричный анализ выявил моносомию по большей части длинного плеча Х-хромосомы и трисомию по ее короткому плечу и проксимальному участку длинного плеча с точкой разрыва в локусе Xq13.3 (75.444.376–155.233.731). Рост пациентки нормальный, что обусловлено наличием двух копий гена SHOX на дериватной хромосоме. Описанный клинический случай расширяет понимание генетических механизмов, лежащих в основе формирования фенотипических проявлений у пациенток с псевдоизодицентрическими Хp хромосомами.</p></abstract><trans-abstract xml:lang="en"><p>The article describes a clinical case of Turner syndrome (TS) in a 15-year-old patient with mosaicism involving a pseudoisodicentric Xp chromosome. The disorder was characterized by delayed puberty, primary amenorrhea, gonadal dysgenesis, uterine hypoplasia, hypergonadotropic hypogonadism, and stigmas of dysembryogenesis. Comprehensive cytogenetic, molecular-cytogenetic, and molecular-genetic studies were conducted. Mosaicism with two cell lines was found in lymphocytes and buccal epithelial cells: one with X chromosome monosomy, the other with one normal X and one pseudoisodicentric Xp chromosome carrying two copies of the SHOX gene. Chromosomal microarray analysis detected monosomy of most of the Xq, and trisomy of the Xp and proximal region of the Xq, with a breakpoint at the Xq13.3 locus (75,444,376–155,233,731). The patient’s normal growth is attributed to the presence of two copies of the SHOX gene on the derivative chromosome. This clinical case enhances the understanding of the genetic mechanisms underlying the phenotypic manifestations of patients with pseudoisodicentric Xp chromosomes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синдром Шерешевского-Тернера</kwd><kwd>мозаицизм</kwd><kwd>моносомия</kwd><kwd>Х-хромосома</kwd><kwd>ген SHOX</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Turner syndrome</kwd><kwd>mosaicism</kwd><kwd>monosomy</kwd><kwd>X chromosome</kwd><kwd>SHOX gene</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Минобрнауки России для ФГБНУ «МГНЦ»</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of the state assignment for the Research Centre for Medical Genetics</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">Меркурьев Д. В., Ахмедова Р. М., Плетенева Э. У. Случай синдрома Шерешевского-Тернера с редкой структурной хромосомной аномалией – псевдоизодицентрической Х-хромосомой. Актуальные вопросы педиатрии. Материалы краевой научно-практической конференции. 2019: 101-105.</mixed-citation><mixed-citation xml:lang="en">Merkuriev D.V., Akhmedova R.M., Pletneva E.U. Sluchay sindroma Shereshevskogo-Ternera s redkoy strukturnoy khromosomnoy anomaliyey – psevdoizoditsentricheskoy KH-khromosomoy. Aktual’nyye voprosy pediatrii. Materialy krayevoy nauchnoprakticheskoy konferentsii [A case of Shereshevsky-Turner syndrome with a rare structural chromosomal abnormality – pseudoisodicentric X chromosome. Current issues in pediatrics. Proceedings of the regional scientific and practical conference]. 2019: 101-105. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Oliveira C. S., Alves C. The role of the SHOX gene in the pathophysiology of Turner syndrome. Endocrinología y Nutrición (English Edition). 2011; 58(8):433-442.</mixed-citation><mixed-citation xml:lang="en">Oliveira C. S., Alves C. The role of the SHOX gene in the pathophysiology of Turner syndrome. Endocrinología y Nutrición (English Edition). 2011; 58(8):433-442.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Dalton P., Coppin B., James R., et al. Three patients with a 45,X/46,X,psu dic(Xp) karyotype. J Med Genet. 1998;35(6):519-24.</mixed-citation><mixed-citation xml:lang="en">Dalton P., Coppin B., James R., et al. Three patients with a 45,X/46,X,psu dic(Xp) karyotype. J Med Genet. 1998;35(6):519-24.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">van der Kamp H.J., Kant S.G., Ruivenkamp C.A., et al. Pseudoisodicentric Xp chromosome [46,X,psu idic(X)(q21.1)] and its effect on growth and pubertal development. Horm Res Paediatr. 2014;81(6):416-21.</mixed-citation><mixed-citation xml:lang="en">van der Kamp H.J., Kant S.G., Ruivenkamp C.A., et al. Pseudoisodicentric Xp chromosome [46,X,psu idic(X)(q21.1)] and its effect on growth and pubertal development. Horm Res Paediatr. 2014;81(6):416-21.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Park S.H., Shim S.H., Chinet M.-U. et al. Pseudoisodicentric X chromosome in a female with primary amenorrhea. J Genet Med. 2008; 5(1):61-64.</mixed-citation><mixed-citation xml:lang="en">Park S.H., Shim S.H., Chinet M.-U. et al. Pseudoisodicentric X chromosome in a female with primary amenorrhea. J Genet Med. 2008; 5(1):61-64.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Tsai A.C., Fine C.A., Yang M., et al. De novo isodicentric X chromosome: 46,X,idic(X)(q24), and summary of literature. Am J Med Genet A. 2006;140(8):923-30.</mixed-citation><mixed-citation xml:lang="en">Tsai A.C., Fine C.A., Yang M., et al. De novo isodicentric X chromosome: 46,X,idic(X)(q24), and summary of literature. Am J Med Genet A. 2006;140(8):923-30.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Chadwick B.P. Characterization of chromatin at structurally abnormal inactive X chromosomes reveals potential evidence of a rare hybrid active and inactive isodicentric X chromosome. Chromosome Res. 2020;28(2):155-169.</mixed-citation><mixed-citation xml:lang="en">Chadwick B.P. Characterization of chromatin at structurally abnormal inactive X chromosomes reveals potential evidence of a rare hybrid active and inactive isodicentric X chromosome. Chromosome Res. 2020;28(2):155-169.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
