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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Consilium Medicum</journal-id><journal-title-group><journal-title xml:lang="en">Consilium Medicum</journal-title><trans-title-group xml:lang="ru"><trans-title>Consilium Medicum</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Consilium Medicum</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-1753</issn><issn publication-format="electronic">2542-2170</issn><publisher><publisher-name xml:lang="en">Consilium Medicum</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">706686</article-id><article-id pub-id-type="doi">10.26442/20751753.2026.6.203704</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The effect of vitamin D<sub>3</sub> on the epidermal barrier in elderly patients</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние витамина D<sub>3</sub> на эпидермальный барьер у пожилых пациентов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4837-8489</contrib-id><contrib-id contrib-id-type="spin">2330-2758</contrib-id><name-alternatives><name xml:lang="en"><surname>Perlamutrov</surname><given-names>Yuri N.</given-names></name><name xml:lang="ru"><surname>Перламутров</surname><given-names>Юрий Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Prof.</p></bio><bio xml:lang="ru"><p>д-р мед. наук., проф., зав. каф. кожных и венерических болезней</p></bio><email>kirilenkoav_med@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1049-0846</contrib-id><name-alternatives><name xml:lang="en"><surname>Martynenko</surname><given-names>Alexander V.</given-names></name><name xml:lang="ru"><surname>Мартыненко</surname><given-names>Александр Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Prof., Acad. RAE</p></bio><bio xml:lang="ru"><p>акад. РАО, д-р мед. наук, проф., зав. каф. социальной медицины и социальной работы</p></bio><email>kirilenkoav_med@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-6254-7469</contrib-id><name-alternatives><name xml:lang="en"><surname>Urakova</surname><given-names>Anna V.</given-names></name><name xml:lang="ru"><surname>Уракова</surname><given-names>Анна Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Senior Clin. Lab., Diagn.</p></bio><bio xml:lang="ru"><p>ст. лаборант каф. кожных и венерических болезней</p></bio><email>kirilenkoav_med@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian University of Medicine</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Российский университет медицины» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-06-20" publication-format="electronic"><day>20</day><month>06</month><year>2026</year></pub-date><volume>28</volume><issue>6</issue><issue-title xml:lang="en">DERMATOLOGY: POSTOPERATIVE SKIN SCARRING AND ALLERGOLOGY</issue-title><issue-title xml:lang="ru">ДЕРМАТОЛОГИЯ: ПОСЛЕОПЕРАЦИОННЫЕ РУБЦОВЫЕ ИЗМЕНЕНИЯ КОЖИ И АЛЛЕРГОЛОГИЯ</issue-title><fpage>415</fpage><lpage>420</lpage><history><date date-type="received" iso-8601-date="2026-04-23"><day>23</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-05-12"><day>12</day><month>05</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2026</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://consilium.orscience.ru/2075-1753/article/view/706686">https://consilium.orscience.ru/2075-1753/article/view/706686</self-uri><abstract xml:lang="en"><p><bold>Background. </bold>Currently, more and more attention is being paid to the role of vitamin D<sub>3</sub> in the development of dermatological pathologies, especially among the elderly population. Cholecalciferol is known for its ability to affect the epidermal barrier, exerting an anti-inflammatory effect by influencing the proliferation and differentiation of keratinocytes, as well as the formation of the hydrolipid mantle of the skin. Given the inevitable age-related changes in vitamin D<sub>3</sub> metabolism and the increasing prevalence of skin diseases among the geriatric population, this study aims to investigate the relationship between cholecalciferol deficiency and the functional activity of the epidermal barrier in older adults.</p> <p><bold>Aim. </bold>The aim of the study was to analyze the effect of vitamin D<sub>3</sub> deficiency on the functional activity of the epidermal barrier and determine the effectiveness of its use in combination with other therapies in geriatric patients.</p> <p><bold>Materials and methods.</bold> A single-center a prospective comparative clinical trial included 80 geriatric patients aged 67–89 years with confirmed skin diseases (true and microbial eczema, allergic dermatitis, and erythematous diaper rash). To assess the functional activity of the epidermal barrier, a comprehensive diagnostic procedure was performed at the initial stage of the study, including corneometry and pH-metry using the Cutometr Multi Probe Adapter MPA 580 Courage+Khazaka electronic GmbH device. All patients had their serum cholecalciferol levels determined, and a vitamin D<sub>3</sub>-containing drug was prescribed based on the results. The impact and effectiveness of the treatment were analyzed based on the dynamics of skin hydration and skin pH levels obtained 12 and 28 weeks after the start of therapy.</p> <p><bold>Results.</bold> In the course of the study, it was found that 100% of geriatric patients with verified dermatoses (true and microbial eczema, allergic dermatitis, erythematous diaper rash) had a deficiency in serum levels of vitamin D<sub>3</sub>, and an assessment of the functional activity of the epidermal barrier based on the results of the therapy showed a more pronounced and persistent improvement in hydration and normalization of skin pH in patients who received complex therapy with cholecalciferol.</p> <p><bold>Conclusion. </bold>The study's findings demonstrate the significant impact of vitamin D<sub>3</sub> deficiency on the functional activity of the epidermal barrier in elderly patients, contributing to the development of dermatological diseases. Implementing recommendations for correcting vitamin D<sub>3</sub> levels may play a fundamental role in maintaining skin homeostasis and the overall physical well-being of geriatric patients.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> В настоящее время все больше внимания уделяется роли витамина D<sub>3</sub> в развитии дерматологических патологий, особенно среди пожилого населения. Холекальциферол известен своей способностью влиять на эпидермальный барьер, оказывая противовоспалительный эффект путем воздействия на пролиферацию и дифференциацию кератиноцитов, а также на формирование гидролипидной мантии кожи. В условиях неизбежных возрастных изменений метаболизма витамина D<sub>3</sub> и повышения распространенности кожных заболеваний среди гериатрической популяции данное исследование направлено на выявление взаимосвязи дефицита холекальциферола с нарушением функциональной активности эпидермального барьера у пожилых людей.</p> <p><bold>Цель. </bold>Оценить влияние дефицита холекальциферола на функциональную активность эпидермального барьера и эффективность его применения в рамках комплексной терапии у гериатрических пациентов.</p> <p><bold>Материалы и методы. </bold>В одноцентровое проспективное сравнительное клиническое исследование включены 80 гериатрических пациентов в возрасте 67–89 лет с подтвержденными заболеваниями кожи (с истинной и микробной экземой, аллергическим дерматитом, эритематозной опрелостью). Для оценки функциональной активности эпидермального барьера у участников на начальном этапе исследования осуществлялась комплексная диагностика, включающая корне- и рН-метрию при помощи аппарата Cutometr Multi Probe Adapter MPA 580 Courage+Khazaka electronic GmbH. Всем пациентам определен уровень холекальциферола в сыворотке крови, по результатам чего назначали препарат, содержащий витамин D<sub>3</sub>. Влияние и эффективность проводимого лечения анализировали на основании динамики показателей увлажненности кожного покрова и уровня рН кожи, полученных через 12 и 28 нед от начала терапии.</p> <p><bold>Результаты. </bold>Установлено, что у 100% гериатрических пациентов с верифицированными дерматозами (истинной и микробной экземой, аллергическим дерматитом, эритематозной опрелостью) наблюдался дефицит сывороточного уровня витамина D<sub>3</sub>, а оценка функциональной активности эпидермального барьера по результатам проведенной терапии показала более выраженное и стойкое улучшение гидратации и нормализации рН кожи у пациентов, получавших комплексную терапию с применением холекальциферола.</p> <p><bold>Заключение. </bold>Полученные результаты исследования доказывают существенное влияние дефицита витамина D<sub>3</sub> на функциональную активность эпидермального барьера у пожилых пациентов, что способствует развитию дерматологических заболеваний. Внедрение рекомендаций по коррекции уровня витамина D<sub>3</sub> может иметь основополагающую роль в поддержании гомеостаза кожи и общего соматического состояния гериатрических пациентов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>vitamin D</kwd><kwd>cholecalciferol</kwd><kwd>aged</kwd><kwd>skin aging</kwd><kwd>eczema</kwd><kwd>dermatitis</kwd><kwd>diaper rash</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>витамин D</kwd><kwd>холекальциферол</kwd><kwd>пожилые пациенты</kwd><kwd>старение кожи</kwd><kwd>экзема</kwd><kwd>дерматит</kwd><kwd>опрелость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Agrawal R, Hu A, Bollag WB. The skin and inflamm-aging. Biology (Basel). 2023;12(11):1396. DOI:10.3390/biology12111396</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Boismal F, Serror K, Dobos G, et al. Skin aging: Pathophysiology and innovative therapies. 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