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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">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">630936</article-id><article-id pub-id-type="doi">10.26442/00403660.2024.04.202690</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные 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">Features of the effect of a probiotic, containing Lactobacillus and Bifidobacterium on the intestinal microbiota and clinical symptoms of irritable bowel syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности влияния пробиотика, содержащего Lactobacillus и Bifidobacterium, на микробиоту кишечника и клинические симптомы синдрома раздраженного кишечника</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5484-0537</contrib-id><name-alternatives><name xml:lang="en"><surname>Khalaidzheva</surname><given-names>Kseniia N.</given-names></name><name xml:lang="ru"><surname>Халаиджева</surname><given-names>Ксения Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>аспирант каф. клинической фармакологии и пропедевтики внутренних болезней Института клинической медицины им. Н.В. Склифосовского</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-7037-2375</contrib-id><name-alternatives><name xml:lang="en"><surname>Nikitina</surname><given-names>Natal'ia V.</given-names></name><name xml:lang="ru"><surname>Никитина</surname><given-names>Наталья Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>зав. гастроэнтерологическим отд-нием</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-5432-2791</contrib-id><name-alternatives><name xml:lang="en"><surname>Astrashkova</surname><given-names>Oksana V.</given-names></name><name xml:lang="ru"><surname>Астрашкова</surname><given-names>Оксана Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>врач-гастроэнтеролог отд-ния гастроэнтерологии</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0535-2916</contrib-id><name-alternatives><name xml:lang="en"><surname>Drozdov</surname><given-names>Vladimir N.</given-names></name><name xml:lang="ru"><surname>Дроздов</surname><given-names>Владимир Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., проф. каф. клинической фармакологии и пропедевтики внутренних болезней Института клинической медицины им. Н.В. Склифосовского</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7234-4185</contrib-id><name-alternatives><name xml:lang="en"><surname>Melkonyan</surname><given-names>George G.</given-names></name><name xml:lang="ru"><surname>Мелконян</surname><given-names>Георгий Геннадьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, глав. врач, проф. каф. хирургии</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shikh</surname><given-names>Evgenia V.</given-names></name><name xml:lang="ru"><surname>Ших</surname><given-names>Евгения Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>д-р мед. наук, проф., зав. каф. клинической фармакологии и пропедевтики внутренних болезней Института клинической медицины им. Н.В. Склифосовского, дир. Института профессионального образования</p></bio><email>Kseniyakhalaidzheva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Sechenov First Moscow State Medical University (Sechenov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Hospital for War Veterans No. 3</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Госпиталь для ветеранов войн №3» Департамента здравоохранения г. Москвы</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian Medical Academy of Continuous Professional Education</institution></aff><aff><institution xml:lang="ru">ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-05-02" publication-format="electronic"><day>02</day><month>05</month><year>2024</year></pub-date><volume>96</volume><issue>4</issue><issue-title xml:lang="en">Issues of diagnostics of internal diseases</issue-title><issue-title xml:lang="ru">Вопросы диагностики внутренних болезней</issue-title><fpage>356</fpage><lpage>363</lpage><history><date date-type="received" iso-8601-date="2024-04-25"><day>25</day><month>04</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-04-25"><day>25</day><month>04</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2024</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/630936">https://ter-arkhiv.ru/0040-3660/article/view/630936</self-uri><abstract xml:lang="en"><p><bold>Background. </bold>One of the important links in the pathogenesis of irritable bowel syndrome (IBS) is a change in the composition of the microbiota, and therefore, the use of probiotics in complex therapy can be considered as a pathogenetic treatment of this functional disease.</p> <p><bold>Aim. </bold>To study the effectiveness of probiotic use on the composition of the intestinal microbiota and the dynamics of symptoms in patients with IBS with predominance of diarrhea (IBS-D) or constipation (IBS-C).</p> <p><bold>Materials and methods. </bold>10 patients with IBS-D and 7 patients with IBS-C who took a probiotic for 28 days, which included: <italic>Lactobacillus</italic> <italic>acidophilus</italic> 1.25×10<sup>9</sup> CFU, <italic>Bifidobacterium</italic> <italic>lactis</italic> – 1.25×10<sup>9</sup> CFU, <italic>Lactobacillus</italic> <italic>paracasei</italic> – 1.25×10<sup>9</sup> CFU, <italic>Lactobacillus</italic> <italic>rhamnosus</italic> – 1.25×10<sup>9</sup> CFU. The dynamics of symptoms was assessed using the Gastrointestinal Symptom Rating Scale, and the composition of the microbiota before and after taking the probiotic was analyzed by sequencing 16S pRNA of stool samples.</p> <p><bold>Results. </bold>In both groups, we found a statistically significant decrease in the level of <italic>Proteobacteria</italic> and an increase in <italic>Firmicutes</italic>. In patients with IBS-C, there was a decrease in <italic>Negativicutes</italic>, which, on the contrary, increased in patients with IBS-D. Shannon's diversity index in patients with IBS-C was statistically significantly lower than in patients with IBS-D 1.55 vs 2.74 (<italic>p</italic>=0.1). Against the background of the application, there was an increase in microbial diversity in patients with IBS-D, it increased to 3.01, and in patients with IBS-C to 2.68. Against the background of changes in the microbiota, there was a positive dynamics of disease symptoms against the background of taking probiotics.</p> <p><bold>Conclusion. </bold>The results obtained reflect the positive effect of probiotics in patients with IBS-D and IBS-C, which makes it possible to clarify the role of microbiota in the development of IBS and recommend their use as part of complex therapy for this disease.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Одним из важных звеньев патогенеза синдрома раздраженного кишечника (СРК) является изменение состава кишечной микробиоты (МБК), в связи с чем применение пробиотиков в комплексной терапии может быть рассмотрено как патогенетическое лечение данного функционального заболевания.</p> <p><bold>Цель. </bold>Изучить эффективность применения пробиотика на состав МБК и динамику симптомов у пациентов с СРК с преобладанием диареи (СРК-Д) или запора (СРК-З).</p> <p><bold>Материалы и методы.</bold> Исследованы 10 пациентов с СРК-Д и 7 больных с СРК-З, в течение 28 дней принимавших пробиотик, в состав которого входили <italic>Lactobacillus</italic> <italic>acidophilus</italic> 1,25×10<sup>9</sup> KOE, <italic>Bifidobacterium</italic> <italic>lactis</italic> – 1,25×10<sup>9</sup> KOE, <italic>Lactobacillus</italic> <italic>paracasei</italic> – 1,25×10<sup>9</sup> KOE, <italic>Lactobacillus</italic> <italic>rhamnosus</italic> – 1,25×10<sup>9</sup> KOE. Динамика симптомов оценена при помощи опросника Gastrointestinal Symptom Rating Scale, а также проанализирован состав МБК до и после приема пробиотика методом секвенирования 16S рРНК образцов кала.</p> <p><bold>Результаты. </bold>В обеих группах нами обнаружено статистически значимое снижение уровня <italic>Proteobacteria</italic> и повышение <italic>Firmicutes</italic>. У пациентов с СРК-З отмечалось уменьшение <italic>Negativicutes</italic>, которые, напротив, увеличились у пациентов с СРК-Д. Индекс á-разнообразия Шеннона у больных с СРК-З был статистически значимо ниже, чем у больных с СРК-Д: 1,55 vs 2,74 (<italic>р</italic>=0,1). На фоне применения отмечалось увеличение микробного разнообразия: у больных с СРК-Д до 3,01, а у больных с СРК-З – до 2,68. На фоне изменений МБК отмечали положительную динамику симптомов заболевания на фоне приема пробиотика.</p> <p><bold>Заключение. </bold>Полученные результаты отражают положительное влияние пробиотиков у пациентов с СРК-Д и СРК-З, что позволяет уточнить роль МБК в развитии СРК и рекомендовать их прием в составе комплексной терапии данного заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>microbiota</kwd><kwd>sequencing</kwd><kwd>probiotic</kwd><kwd>irritable bowel syndrome</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>микробиота</kwd><kwd>секвенирование</kwd><kwd>пробиотик</kwd><kwd>синдром разраженного кишечника</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lacy BE, Mearin F, Chang L, et al. Bowel Disorders. Gastroenterology. 2016;S0016-5085(16)00222-5. DOI:10.1053/J.GASTRO.2016.02.031</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Lovell RM, Ford AC. 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