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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">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2026-71-4-101-104</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-2477</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>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Вклад диетотерапии при лечении эпилепсии у ребенка с первичной лактазной недостаточностью</article-title><trans-title-group xml:lang="en"><trans-title>The contribution of diet therapy in the treatment of epilepsy in a child with primary lactase deficiency</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9110-6753</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пырьева</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pyrieva</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пырьева Екатерина Анатольевна — к.м.н., доцент кафедры диетологии и нутрициологии ФГБОУ ДПО «РМАНПО» Минздрава России, заведующая лаборатории возрастной нутрициологии ФГБУН «Федеральный исследовательский центр питания, биотехнологии и безопасности пищи».</p><p>109240, Москва, пр. Устьинский, д. 2/14</p></bio><bio xml:lang="en"><p>109240, Moscow</p></bio><email xlink:type="simple">epyrieva@mail.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/0000-0002-6023-8737</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафронова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Safronova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сафронова Адиля Ильгизовна — к.м.н., в.н.с. лаборатории возрастной нутрициологии.</p><p>109240, Москва, пр. Устьинский, д. 2/14</p></bio><bio xml:lang="en"><p>109240, Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-5297-9968</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якубович</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakubovich</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якубович Айина Михайловна — лаборант-исследователь лаборатории возрастной нутрициологии.</p><p>109240, Москва, пр. Устьинский, д. 2/14</p></bio><bio xml:lang="en"><p>109240, Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0531-9315</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукьянова</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukyanova</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лукьянова Екатерина Геннадьевна — врач-детский невролог отделения психоневрологии.</p><p>119620, Москва, ул. Авиаторов, д. 38</p></bio><bio xml:lang="en"><p>119620, Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4653-9867</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крапивкин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Krapivkin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крапивкин Алексей Игорьевич — д.м.н., директор.</p><p>119620, Москва, ул. Авиаторов, д. 38</p></bio><bio xml:lang="en"><p>119620, Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН «Федеральный исследовательский центр питания, биотехнологии и безопасности пищи»; ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Centre of Nutrition, Biotechnology and Food Safety; Russian Medical Academy of Postgraduate Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУН «Федеральный исследовательский центр питания, биотехнологии и безопасности пищи»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Centre of Nutrition, Biotechnology and Food Safety; Russian Medical Academy of Postgraduate Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ «Научно-практический центр специализированной медицинской помощи детям имени В.Ф. Войно-Ясенецкого» ДЗМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.F. Voyno-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2026</year></pub-date><volume>71</volume><issue>4</issue><fpage>101</fpage><lpage>104</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/2477">https://www.ped-perinatology.ru/jour/article/view/2477</self-uri><abstract><p>Эпилепсия у детей представляет собой гетерогенную группу заболеваний, в основе которых лежат сложные взаимодействия генетических, метаболических и внешних факторов. Особый интерес вызывают формы эпилепсии, ассоциированные с мутациями генов натриевых каналов, в частности SCN1A. Несмотря на генетическую природу синдрома, течение заболевания может модифицироваться дополнительными триггерами, включая особенности питания и состояние кишечной микробиоты. В статье представлен клинический случай мальчика, 6 лет, с генетической эпилепсией с фебрильными судорогами плюс (GEFS+), ассоциированной с мутацией SCN1A, сочетавшейся с первичной лактазной недостаточностью. У пациента отмечалась фармакорезистентная судорожная активность с ранним дебютом и частыми афебрильными приступами, несмотря на комбинированную противоэпилептическую терапию. В рамках расширенного диагностического поиска выявлен полиморфизм гена MCM6, подтверждающий первичную гиполактазию. Учитывая корреляцию обострений с употреблением молочных продуктов, была проведена полная их элиминация, что привело к снижению частоты приступов более чем на 70% и улучшению когнитивного и поведенческого профиля ребенка. Случай подчеркивает необходимость междисциплинарного подхода при устойчивых к терапии формах эпилепсии у детей.</p></abstract><trans-abstract xml:lang="en"><p>Epilepsy in children is a heterogeneous group of diseases based on complex interactions of genetic, metabolic, and environmental factors. Of particular interest are the forms of epilepsy associated with mutations of sodium channel genes, in particular SCN1A, which determine the spectrum of disorders united by the concept of “genetic epilepsy with febrile seizures plus” (GEFS+). Despite the genetic nature of the syndrome, the course of the disease can be modified by additional triggers, including nutritional characteristics and the state of the intestinal microbiota. The article presents a clinical case of a 6-year-old boy with genetic epilepsy with febrile seizures plus (GEFS+) associated with the SCN1A mutation, in whom the course of the disease was complicated by primary lactase deficiency. The patient had pharmacoresistant convulsive activity with early onset and frequent afebrile seizures, despite combined antiepileptic therapy. An extended diagnostic search revealed a polymorphism of the MCM6 gene, confirming primary hypolactasia. Taking into account the correlation of exacerbations with the use of dairy products, their complete elimination was carried out, which led to a decrease in the frequency of seizures by more than 70% and an improvement in the cognitive and behavioral profile of the child. The case highlights the need for an interdisciplinary approach in treatment-resistant forms of epilepsy in children.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дети</kwd><kwd>эпилепсия</kwd><kwd>лактазная недостаточность</kwd><kwd>SCN1A</kwd><kwd>GEFS+</kwd></kwd-group><kwd-group xml:lang="en"><kwd>children</kwd><kwd>epilepsy</kwd><kwd>lactase deficiency</kwd><kwd>SCN1A</kwd><kwd>GEFS+</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Научно-исследовательская работа проведена за счет средств субсидии на выполнение государственного задания в рамках Программы поисковых научных исследований на 2025–2027 гг. (тема № FGMF-2025-0008)</funding-statement><funding-statement xml:lang="en">The work was performed at the expense of funds allocated for the implementation of the state task within the framework of the Exploratory Research Program for 2025-2027 years. 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