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<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="brief-report" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Terapevticheskii arkhiv</journal-id><journal-title-group><journal-title xml:lang="en">Terapevticheskii arkhiv</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапевтический архив</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0040-3660</issn><issn publication-format="electronic">2309-5342</issn><publisher><publisher-name xml:lang="en">LLC Obyedinennaya Redaktsiya</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">32646</article-id><article-id pub-id-type="doi">10.17116/terarkh201688657-62</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Editorial article</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Передовая статья</subject></subj-group><subj-group subj-group-type="article-type"><subject>Short Communication</subject></subj-group></article-categories><title-group><article-title xml:lang="en">CDC73 mutations in young patients with primary hyperparathyroidism: A description of two clinical cases</article-title><trans-title-group xml:lang="ru"><trans-title>Мутации в гене CDC73 у молодых пациенток с первичным гиперпаратиреозом (описание двух клинических случаев)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mamedova</surname><given-names>E O</given-names></name><name xml:lang="ru"><surname>Мамедова</surname><given-names>Е О</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mokrysheva</surname><given-names>N G</given-names></name><name xml:lang="ru"><surname>Мокрышева</surname><given-names>Н Г</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pigarova</surname><given-names>E A</given-names></name><name xml:lang="ru"><surname>Пигарова</surname><given-names>Е А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Przhiyalkovskaya</surname><given-names>E G</given-names></name><name xml:lang="ru"><surname>Пржиялковская</surname><given-names>Е Г</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Voronkova</surname><given-names>I A</given-names></name><name xml:lang="ru"><surname>Воронкова</surname><given-names>И А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vasilyev</surname><given-names>E V</given-names></name><name xml:lang="ru"><surname>Васильев</surname><given-names>Е В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Petrov</surname><given-names>V M</given-names></name><name xml:lang="ru"><surname>Петров</surname><given-names>В М</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorbunova</surname><given-names>V A</given-names></name><name xml:lang="ru"><surname>Горбунова</surname><given-names>В А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rozhinskaya</surname><given-names>L Ya</given-names></name><name xml:lang="ru"><surname>Рожинская</surname><given-names>Л Я</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Belaya</surname><given-names>Zh E</given-names></name><name xml:lang="ru"><surname>Белая</surname><given-names>Ж Е</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tyulpakov</surname><given-names>A N</given-names></name><name xml:lang="ru"><surname>Тюльпаков</surname><given-names>А Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en"></institution></aff><aff><institution xml:lang="ru">Эндокринологический научный центр Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en"></institution></aff><aff><institution xml:lang="ru">Российский онкологический научный центр им. Н.Н. Блохина</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-10-15" publication-format="electronic"><day>15</day><month>10</month><year>2016</year></pub-date><volume>88</volume><issue>10</issue><issue-title xml:lang="en">VOL 88, NO10 (2016)</issue-title><issue-title xml:lang="ru">ТОМ 88, №10 (2016)</issue-title><fpage>57</fpage><lpage>62</lpage><history><date date-type="received" iso-8601-date="2020-04-11"><day>11</day><month>04</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</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://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ter-arkhiv.ru/0040-3660/article/view/32646">https://ter-arkhiv.ru/0040-3660/article/view/32646</self-uri><abstract xml:lang="en"><p>The article describes two clinical cases of severe primary hyperparathyroidism (PHPT) caused by parathyroid carcinoma in young female patients who underwent molecular genetic testing to rule out the hereditary forms of PHPT. In both patients, heterozygous germline nonsense mutations of tumor suppressor gene CDC73 encoding parafibromin (p.R91X and p.Q166X) were identified using next-generation sequencing with Ion Torrent Personal Genome Machine (Thermo Fisher Scientific — Life Technologies, USA). It is the first description of CDC73 mutations in Russia, one of the mutations is described for the first time in the world. Identification of germline mutations in the CDC73 gene in patients with PHPT necessitates regular lifelong screening for other manifestations of hyperparathyroidism-jaw tumor syndrome (HPT-JT), PHPT recurrence due to parathyroid carcinoma as well, and identification of mutation carriers among first-degree relatives.</p></abstract><trans-abstract xml:lang="ru"><p>Представлено описание двух клинических случаев первичного гиперпаратиреоза (ПГПТ) тяжелого течения у молодых больных раком околощитовидной железы, которым проведено молекулярно-генетическое исследование для исключения наследственных форм ПГПТ. Методом высокопроизводительного параллельного секвенирования на полупроводниковом секвенаторе Ion Torrent Personal Genome Machine (Thermo Fisher Scientific — Life Technologies, США) у обеих пациенток выявлены герминальные гетерозиготные нонсенс-мутации в гене — супрессоре опухолевого роста CDC73, кодирующем белок парафибромин: p.R91X и p.Q166X. В России мутации в указанном гене описываются впервые, одна из мутаций описывается впервые в мире. Выявление герминальных мутаций в гене CDC73 у пациентов с ПГПТ требует пожизненного регулярного профилактического обследования для ранней диагностики компонентов синдрома гиперпаратиреоза с опухолью челюсти (hyperparathyroidism-jaw tumor syndrome — HPT-JT), рецидива ПГПТ после хирургического вмешательства, в том числе вследствие рака околощитовидной железы, а также позволяет выявить носителей мутаций среди родственников первой линии родства.</p></trans-abstract><kwd-group xml:lang="en"><kwd>primary hyperparathyroidism</kwd><kwd>hyperparathyroidism-jaw tumor syndrome</kwd><kwd>HPT-JT</kwd><kwd>CDC73</kwd><kwd>parafibromin</kwd><kwd>parathyroid carcinoma</kwd><kwd>next-generation sequencing</kwd><kwd>NGS</kwd><kwd>HPT-JT</kwd><kwd>CDC73</kwd><kwd>NGS</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>первичный гиперпаратиреоз</kwd><kwd>синдром гиперпаратиреоза с опухолью челюсти</kwd><kwd>парафибромин</kwd><kwd>рак околощитовидной железы</kwd><kwd>секвенирование нового поколения</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Мокрышева Н.Г. 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