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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">endofocus</journal-id><journal-title-group><journal-title xml:lang="ru">FOCUS Эндокринология</journal-title><trans-title-group xml:lang="en"><trans-title>FOCUS. Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-0177</issn><issn pub-type="epub">2713-0185</issn><publisher><publisher-name>ООО "Издательство "Перо"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15829/2713-0177-2023-9</article-id><article-id custom-type="edn" pub-id-type="custom">GPWQSF</article-id><article-id custom-type="elpub" pub-id-type="custom">endofocus-9</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>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group></article-categories><title-group><article-title>Синдром Кляйнфельтера: клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Klinefelter syndrome: a case report</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3178-3581</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арефьева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Arefyeva</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-эндокринолог отделения эндокринологии НКЦЭ ПСПбГМУ им. акад. И. П. Павлова</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><email xlink:type="simple">arefjeva.anna2012@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5189-9365</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волкова</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор кафедры терапии факультетской с курсом эндокринологии, кардиологии и функциональной диагностики с клиникой</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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/0000-0003-4295-1202</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лискер</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lisker</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>зав. отделением эндокринологии НКЦЭ ПСПбГМУ им. акад. И. П. Павлова</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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/0000-0002-6542-7959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Остроухова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ostroukhova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., доцент кафедры терапии факультетской с курсом эндокринологии, кардиологии и функциональной диагностики с клиникой</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</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/0009-0003-4150-5064</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Холудеева</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kholudeeva</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ординатор 2 года отделения эндокринологии</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО Первый Санкт-Петербургский Государственный медицинский университет им. акад. И. П. Павлова Минздрава России</institution></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>10</day><month>05</month><year>2023</year></pub-date><volume>4</volume><issue>1</issue><issue-title>Коморбидность</issue-title><fpage>84</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Арефьева А.Н., Волкова А.Р., Лискер А.В., Остроухова Е.Н., Холудеева Т.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Арефьева А.Н., Волкова А.Р., Лискер А.В., Остроухова Е.Н., Холудеева Т.А.</copyright-holder><copyright-holder xml:lang="en">Arefyeva A.N., Volkova A.R., Lisker A.V., Ostroukhova E.N., Kholudeeva T.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://endofocus.elpub.ru/jour/article/view/9">https://endofocus.elpub.ru/jour/article/view/9</self-uri><abstract><p>Синдром Кляйнфельтера (СК) — генетическое заболевание, связанное с наличием дополнительной Х-хромосомы в кариотипе у мужчин. Наиболее часто встречающийся кариотип — 47ХХY, однако возможны и другие генетические варианты, а также мозаичные формы.</p><p>Клиническая картина чаще всего представлена двусторонней гинекомастией, уменьшением в объёме яичек и бесплодием (азооспермией). Лабораторно выявляется гипергонадотропный гипогонадизм. Для обеспечения вирилизации и должного качества жизни используется заместительная терапия препаратами тестостерона, для восстановления фертильности — вспомогательные репродуктивные технологии с предварительной гормональной подготовкой.</p><p>В настоящей статье представлен клинический случай пациента с СК и рассмотрены варианты реализации репродуктивных планов в случае необструктивной азооспермии.</p></abstract><trans-abstract xml:lang="en"><p>Klinefelter syndrome (KS) is a genetic disease associated with the presence of an extra X-chromosome in the karyotype of men. The most common karyotype is 47XXY, however, other genetic variants are also possible, as well as mosaic forms.</p><p>The clinical picture is most often represented by bilateral gynecomastia, decreased in the volume testicles and infertility (azoospermia). Laboratory revealed hypergonadotropic hypogonadism. Testosterone replacement therapy is used to ensure virilization and the proper quality of life. Assisted reproductive technologies with preliminary hormonal preparation are used to restore fertility.</p><p>This article presents a clinical case of KS and considers options for realization of reproductive plans in the case of non-obstructive azoospermia.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипергонадотропный гипогонадизм</kwd><kwd>кариотипирование</kwd><kwd>синдром Кляйнфельтера</kwd><kwd>TESE</kwd><kwd>ROSI</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hypergonadotropic hypogonadism</kwd><kwd>karyotyping</kwd><kwd>Klinefelter syndrome</kwd><kwd>TESE</kwd><kwd>ROSI</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">Klinefelter HF, Reifenstein EC, Albright F. Syndrome characterized by gynecomastia, aspermatogenesis without A-Leydigism, and increased excretion of follicle-stimulating hormone. 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