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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">10.25557/2073-7998.2025.12.80-87</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3351</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Выявление гетерозиготных вариантов в генах LPL и LMF1 у пациентов с тяжёлой гипертриглицеридемией.</article-title><trans-title-group xml:lang="en"><trans-title>Identification of heterozygous variants in the LPL and LMF1 genes in patients with severe hypertriglyceridemia.</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>Кривошеина</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Krivosheina</surname><given-names>M. I.</given-names></name></name-alternatives><email xlink:type="simple">Krivosheina_Maria@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>Штейн</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shtein</surname><given-names>K. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бакалейко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakaleiko</surname><given-names>V. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сокольникова</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolnikova</surname><given-names>P. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алиева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Alieva</surname><given-names>A. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабенко</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Babenko</surname><given-names>A. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костарева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostareva</surname><given-names>A. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ Национальный медицинский исследовательский центр имени В.А. Алмазова Министерства здравоохранения Российской Федерации&#13;
197341, г. Санкт-Петербург, ул. Аккуратова, д. 2</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.A. Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>01</month><year>2026</year></pub-date><volume>24</volume><issue>12</issue><fpage>80</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кривошеина М.И., Штейн К.А., Бакалейко В.В., Сокольникова П.С., Алиева А.С., Бабенко А.Ю., Костарева А.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кривошеина М.И., Штейн К.А., Бакалейко В.В., Сокольникова П.С., Алиева А.С., Бабенко А.Ю., Костарева А.А.</copyright-holder><copyright-holder xml:lang="en">Krivosheina M.I., Shtein K.A., Bakaleiko V.V., Sokolnikova P.S., Alieva A.S., Babenko A.Y., Kostareva A.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/3351">https://www.medgen-journal.ru/jour/article/view/3351</self-uri><abstract><p>Гипертриглицеридемия (ГТГ) – нарушение липидного обмена, характеризующееся повышением уровня триглицеридов (ТГ) в плазме крови более 1,7 ммоль/л. Уровень ТГ ≥10 ммоль/л, по одним литературным данным, или ≥ 11,2 ммоль/л, по другим, считают тяжёлой формой ГТГ. За развитие данной патологии ответственен ряд факторов: патогенные или вероятно патогенные варианты в гене или генах, ассоциированных с ГТГ, наличие метаболических заболеваний, факторы окружающей среды и образ жизни. Наиболее опасным фенотипическим проявлением повышенного уровня ТГ в плазме крови является развитие острого панкреатита, по поводу которого пациенты часто впервые обращаются за медицинской помощью. В данной работе описаны два наблюдаемых нами клинических случая тяжёлой ГТГ, диагностический поиск в которых состоял из молекулярно-генетических и инструментальных методов. В результате исследования биологического материала пациентов путем секвенирования выявлены: в первом случае – гетерозиготные вероятно патогенный вариант в гене LPL и вероятно доброкачественный вариант в гене LMF1, во втором – гетерозиготный вариант неясного клинического значения в гене LMF1. В статье обсуждается возможная причинная роль данных генетических вариантов и сложности клинической интерпретации гетерозиготных причин развития ГТГ.</p></abstract><trans-abstract xml:lang="en"><p>Hypertriglyceridemia (HTG) is a disorder of lipid metabolism characterized by an increase in the level of triglycerides (TG) in blood plasma of more than 1,7 mmol/l. The level of TG ≥10 mmol/l, according to some literature data, or ≥ 11.2 mmol/l, according to others, is considered a severe form of HTG. A number of factors are responsible for the development of this pathology: pathogenic or likely pathogenic variants in the gene or genes associated with HTG, the presence of metabolic diseases, environmental factors, and lifestyle. The most dangerous phenotypic manifestation of elevated TG levels in blood plasma is the development of acute pancreatitis, for which patients often seek medical help for the first time. In this study, we describe two clinical cases of severe HTG that we observed, in which the diagnostic search consisted of molecular genetics and instrumental methods. As a result of the study of the biological material of patients by sequencing, the following were identified: in the first case, a heterozygous, probably pathogenic variant in the LPL gene and a probably benign variant in the LMF1 gene; in the second, a heterozygous variant of unclear clinical significance in the LMF1 gene. The article discusses the possible causal role of these genetic variants and the complexity of the clinical interpretation of heterozygous causes of HTG.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипертриглицеридемия</kwd><kwd>панкреатит</kwd><kwd>сахарный диабет</kwd><kwd>LPL</kwd><kwd>LMF</kwd><kwd>секвенирование по Сэнгеру</kwd><kwd>секвенированиенового поколения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hypertriglyceridemia</kwd><kwd>LMF1</kwd><kwd>LPL</kwd><kwd>Sanger sequencing</kwd><kwd>next-generation sequencing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет гранта РНФ №25-75-30010.</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation grant No. 25-75-30010.</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">Alves M., Laranjeira F., Correia-da-Silva G. 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