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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">epilepsia</journal-id><journal-title-group><journal-title xml:lang="en">Epilepsy and paroxysmal conditions</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпилепсия и пароксизмальные состояния</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2077-8333</issn><issn pub-type="epub">2311-4088</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2077-8333/epi.par.con.2024.202</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-1099</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="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group></article-categories><title-group><article-title>Anticonvulsants impacting bone metabolism: interim results from a cross-sectional study</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние антиконвульсантов на метаболизм костной ткани: промежуточные результаты  кросс-секционного исследования</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9930-0892</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сивакова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sivakova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сивакова Наталия Александровна, к.м.н.</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p><p>WoS ResearcherID: I-7015-2018</p></bio><bio xml:lang="en"><p>Natalia A. Sivakova, PhD </p><p>3 Bekhterev Str., Saint Petersburg 192019</p><p>WoS ResearcherID: I-7015-2018</p></bio><email xlink:type="simple">dr.sivakovan@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-4102-0725</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абрамова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абрамова Ирина Викторовна</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p></bio><bio xml:lang="en"><p>Irina V. Abramova </p><p>3 Bekhterev Str., Saint Petersburg 192019</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/0009-0005-4721-1977</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трухина</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Trukhina</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трухина Ирина Юрьевна</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p></bio><bio xml:lang="en"><p>Irina Yu. Trukhina </p><p>3 Bekhterev Str., Saint Petersburg 192019</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/0009-0001-7692-7051</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыбасова</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Rybasova</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рыбасова Варвара Павловна</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p></bio><bio xml:lang="en"><p>Varvara P. Rybasova </p><p>3 Bekhterev Str., Saint Petersburg 192019</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/0000-0002-4658-2195</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Касьянов</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kasyanov</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Касьянов Евгений Дмитриевич, к.м.н.</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p><p>Scopus Author ID: 57205549541</p></bio><bio xml:lang="en"><p>Evgeny D. Kasyanov, PhD </p><p>3 Bekhterev Str., Saint Petersburg 192019</p><p>Scopus Author ID: 57205549541</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/0000-0001-8500-7268</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лукина Лариса Викторовна, к.м.н.</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p><p>Scopus Author ID: 16520904200</p></bio><bio xml:lang="en"><p>Larisa V. Lukina, PhD </p><p>3 Bekhterev Str., Saint Petersburg 192019</p><p>Scopus Author ID: 16520904200</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/0000-0002-7700-2704</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михайлов Владимир Алексеевич, д.м.н.</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p><p>WoS ResearcherID: B-3272-2017</p></bio><bio xml:lang="en"><p>Vladimir A. Mikhailov, Dr. Sci. Med. </p><p>3 Bekhterev Str., Saint Petersburg 192019</p><p>WoS ResearcherID: B-3272-2017</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/0000-0001-7036-5927</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мазо</surname><given-names>Г. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Mazo</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мазо Галина Элевна, д.м.н.</p><p>ул. Бехтерева, д. 3, Санкт-Петербург 192019</p><p>Scopus Author ID: 6603942525</p></bio><bio xml:lang="en"><p>Galina E. Mazo, Dr. Sci. Med. </p><p>3 Bekhterev Str., Saint Petersburg 192019</p><p>Scopus Author ID: 6603942525</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр психиатрии и неврологии им. В.М. Бехтерева» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bekhterev National Medical Research Center for Psychiatry and Neurology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>21</day><month>10</month><year>2024</year></pub-date><volume>16</volume><issue>3</issue><elocation-id>192–201</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Sivakova N.A., Abramova I.V., Trukhina I.Y., Rybasova V.P., Kasyanov E.D., Lukina L.V., Mikhailov V.A., Mazo G.E., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Сивакова Н.А., Абрамова И.В., Трухина И.Ю., Рыбасова В.П., Касьянов Е.Д., Лукина Л.В., Михайлов В.А., Мазо Г.Э.</copyright-holder><copyright-holder xml:lang="en">Sivakova N.A., Abramova I.V., Trukhina I.Y., Rybasova V.P., Kasyanov E.D., Lukina L.V., Mikhailov V.A., Mazo G.E.</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.epilepsia.su/jour/article/view/1099">https://www.epilepsia.su/jour/article/view/1099</self-uri><abstract><sec><title>Background</title><p>Background. Despite a wide range of antiepileptic drugs (AEDs) with an improved pharmacological profile, patients often experience a variety of side effects during long-trem anticonvulsant therapy, among which are osteoporotic disorders. Currently, the mechanisms of AED effect on bone metabolism remain poorly understood, which creates certain difficulties in prevention and treatment of AED-induced osteoporosis.</p></sec><sec><title>Objective</title><p>Objective: to study bone mineral density and laboratory parameters of bone metabolism in patients with epilepsy and longterm AED administration.</p></sec><sec><title>Material and methods</title><p>Material and methods. A cross-sectional study included two comparison groups: 100 adult patients with epilepsy receiving AEDs for more than 12 months and 58 healthy volunteers without taking AEDs. All participants underwent general clinical examination, computed tomography (CT) densitometry at three time points (L1, L2 and femoral neck) and laboratory tests of mineral metabolism.</p></sec><sec><title>Results</title><p>Results. According to CT-densitometry results, a decrease in bone mineral density was detected in the majority of participants from both study groups. While assessing an impact of osteoporosis risk factors on bone tissue in epileptic patients, low motor activity and duration of AED therapy were the most significant, which was associated with lower bone mineral density indices. The study of laboratory mineral metabolism indicators revealed significant inter-group differences in indicators such as ionized calcium, 25-hydroxy-calciferol, free thyroxine and prolactin (p(U)=0.044, p(U)=0.040, p(U)=0.001, p(U)=0.003, respectively).</p></sec><sec><title>Conclusion</title><p>Conclusion. The intermediate study results showed that long-term anticonvulsant use negatively affected bone metabolism in patients suffering from epilepsy. The data obtained point at need for further in-depth study of AED therapy effect on mineral metabolism.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Актуальность</title><p>Актуальность. Несмотря на широкий выбор противоэпилептических препаратов (ПЭП) с улучшенным фармакологическим профилем, нередко при их длительном приеме пациенты испытывают разнообразные побочные эффекты, одними из которых являются остеопоротические нарушения. Механизмы влияния ПЭП на костный метаболизм в настоящее время остаются недостаточно изученными, что создает определенные сложности в профилактике и лечении антиконвульсант-индуцированного остеопороза.</p></sec><sec><title>Цель</title><p>Цель: изучить минеральную плотность костной ткани и лабораторные параметры костного обмена у больных эпилепсией, длительно принимающих ПЭП.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Проведено кросс-секционное исследование с включением двух групп сравнения – 100 взрослых пациентов с эпилепсией, получающие ПЭП более 12 мес, и 58 здоровых добровольцев без приема ПЭП. Всем участникам выполняли общеклиническое обследование, компьютерную томографическую (КТ) денситометрию в трех точках (L1, L2 и шейка бедра), лабораторные тесты минерального обмена. </p></sec><sec><title>Результаты</title><p>Результаты. По результатам КТ-денситометрии снижение минеральной плотности костной ткани выявлено у большинства участников в обеих группах. При оценке влияния риск-факторов остеопороза на костную ткань в группе больных эпилепсией наиболее значимыми были низкая двигательная активность и длительность ПЭП-терапии, что связано с более низкими показателями минеральной плотности костной ткани. Исследование лабораторных показателей минерального обмена выявило статистически значимые различия между группами по таким индикаторам, как ионизированный кальций, 25-гидроксикальциферол, свободный тироксин и пролактин (p(U)=0,044, p(U)=0,040, p(U)=0,001, p(U)=0,003 соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Промежуточные результаты исследования продемонстрировали, что длительное применение антиконвульсантов оказывает негативное влияние на костный метаболизм у пациентов, страдающих эпилепсией. Полученные данные указывают на необходимость дальнейшего углубленного изучения влияния терапии ПЭП на минеральный обмен.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Эпилепсия</kwd><kwd>остеопороз</kwd><kwd>остеопения</kwd><kwd>антиконвульсанты</kwd><kwd>противоэпилептические препараты</kwd><kwd>ПЭП</kwd><kwd>минеральная плотность костной ткани</kwd><kwd>МПКТ</kwd><kwd>костный метаболизм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Epilepsy</kwd><kwd>osteoporosis</kwd><kwd>osteopenia</kwd><kwd>anticonvulsants</kwd><kwd>antiepileptic drugs</kwd><kwd>AEDs</kwd><kwd>bone mineral density</kwd><kwd>BMD</kwd><kwd>bone metabolism</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке Российского научного фонда (грант № 23-25-00104) (https://rscf.ru/project/23-25-00104/)</funding-statement><funding-statement xml:lang="en">The study was supported by the Russian Science Foundation (grant No. 23-2500104) (https://rscf.ru/project/23-25-00104/)</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">Shen C., Chen F., Zhang Y., et al. 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