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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">pmedpharm</journal-id><journal-title-group><journal-title xml:lang="ru">Фармация и фармакология</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacy &amp; Pharmacology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2307-9266</issn><issn pub-type="epub">2413-2241</issn><publisher><publisher-name>Pyatigorsk Medical and Pharmaceutical Institute - branch of Volgograd State Medical Univer</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.19163/2307-9266-2025-13-6-487-499</article-id><article-id custom-type="elpub" pub-id-type="custom">pmedpharm-1762</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>ОРИГИНАЛЬНАЯ СТАТЬЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Влияние генетического варианта CYP3A4*22 и уровня экспрессии плазменной микроРНК miR-27b на равновесную концентрацию силодозина и результаты терапии у пациентов с доброкачественной гиперплазией предстательной железы: проспективное обсервационное исследование</article-title><trans-title-group xml:lang="en"><trans-title>Impact of CYP3A4*22 Genetic Variant and Plasma microRNA mir-27b Expression Level on Silodosin Steady-State Concentration and Therapy Outcomes in Patients with Benign Prostatic Hyperplasia: A Prospective Observational Trial</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7737-1534</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаев</surname><given-names>Ш. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaev</surname><given-names>Sh. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, лаборант кафедры эндоскопической урологии, ФГБОУ ДПО РМАНПО Минздрава России.</p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Medicine), technician of the Department of Endoscopic Urology of Russian Medical Academy of Continuous Professional Education. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p></bio><email xlink:type="simple">luon@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/0000-0003-4013-4831</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буре</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bure</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории медицинской генетики ФГАОУ ВО Первый МГМУ имени И.М. Сеченова Минздрава России (Сеченовский Университет); старший научный сотрудник отдела предиктивных и прогностических биомаркеров НИИ молекулярной и персонализированной медицины ФГБОУ ДПО РМАНПО Минздрава России. </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 119991, г. Москва, ул. Трубецкая, д. 8, стр. 2.</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Biology), Leading Researcher of the Laboratory of Medical Genetics of the Sechenov First Moscow State Medical University (Sechenov University; Leading Researcher of the Department of Predictive and Prognostic Biomarkers of the Research Institute of Molecular and Personalized Medicine of the Russian Medical Academy of Continuous Professional Education. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>8 Trubetskaya Str., bldg. 2, Moscow, Russia, 119991.</p></bio><email xlink:type="simple">bureira@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1285-7357</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шатохин</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shatokhin</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, профессор кафедры эндоскопической урологии ФГБОУ ДПО РМАНПО Минздрава России; врач уролог-андролог, ЧУЗ «Центральная клиническая больница «РЖД-медицина.</p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 125310, г. Москва, ул. Волоколамское шоссе, д. 84.</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Professor, Professor of the Department of Endoscopic Urology of Russian Medical Academy of Continuous Professional Education; urologist andrologist of Central Hospital «Russian Railways-Medicine». </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>84 Volokolamskoye Hwy., Moscow, Russia, 125310.</p><p> </p></bio><email xlink:type="simple">sh.77@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9001-1499</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаев</surname><given-names>Ш. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaev</surname><given-names>Sh. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник, заведующий отделом предиктивных и прогностических биомаркеров НИИ молекулярной и персонализированной медицины ФГБОУ ДПО РМАНПО Минздрава России; старший научный сотрудник отдела фармакогенетики и персонализированной терапии Центра геномных исследований мирового уровня «Центр предиктивной генетики, фармакогенетики и персонализированной терапии», ФГБНУ РНЦХ им. акад. Б.В. Петровского.</p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 119991, г. Москва, Абрикосовский пер., д. 2.</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Biology), Head of the Department of Predictive and Prognostic Biomarkers of the Research Institute of Molecular and Personalized Medicine of the Russian Medical Academy of Continuous Professional Education; Leading Researcher of the Department of Pharmacogenetics and Personalized Therapy at the World-class Center for Genomic Research "Center for Predictive Genetics, Pharmacogenetics and Personalized Therapy", Russian Scientific Center of Surgery named after Academician B.V. Petrovsky. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>2 Abrikosovsky Ln., Moscow, Russia, 119991.</p></bio><email xlink:type="simple">abdullaevsp@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8555-5969</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бочков</surname><given-names>П. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bochkov</surname><given-names>P. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник отдела предиктивных и прогностических биомаркеров НИИ молекулярной и персонализированной медицины ФГБОУ ДПО РМАНПО Минздрава России; заместитель директора по науке ГБУЗ «МНПЦЛИ ДЗМ». </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 115580, г. Москва, Ореховый бульвар, д. 49, корп. 1.</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Biology), Leading Researcher of the Department of Predictive and Prognostic Biomarkers, Research Institute of Molecular and Personalized Medicine of Russian Medical Academy of Continuous Professional Education; Deputy Director for Science of the Moscow Scientific and Practical Laboratory Research Center (Moscow, Russia). </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>49 Orekhovy Blvd., bldg. 1, Moscow, Russia, 115580.</p><p> </p></bio><email xlink:type="simple">bok-of@yandex.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-2744-2752</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тучкова</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tuchkova</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник отдела предиктивных и прогностических биомаркеров НИИ молекулярной и персонализированной медицины, ФГБОУ ДПО РМАНПО Минздрава России; младший научный сотрудник отдела фармакогенетики и персонализированной терапии Центра геномных исследований мирового уровня «Центр предиктивной генетики, фармакогенетики и персонализированной терапии», ФГБНУ РНЦХ им. акад. Б.В. Петровского. </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 119991, г. Москва, Абрикосовский пер., д. 2.</p></bio><bio xml:lang="en"><p>Junior Researcher of the Department of Predictive and Prognostic Biomarkers of the Research Institute of Molecular and Personalized Medicine of Russian Medical Academy of Continuous Professional Education; Junior Researcher of the Department of Pharmacogenetics and Personalized Therapy at the World-class Center for Genomic Research "Center for Predictive Genetics, Pharmacogenetics and Personalized Therapy", Russian Scientific Center of Surgery named after Academician B.V. Petrovsky. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>2 Abrikosovsky Ln., Moscow, Russia, 119991.</p></bio><email xlink:type="simple">svetlana.tuch1998@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9307-4994</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мирзаев</surname><given-names>К. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Mirzaev</surname><given-names>K. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, доцент, профессор кафедры клинической фармакологии и терапии им. академика Б.Е. Вотчала, ФГБОУ ДПО РМАНПО Минздрава России; заместитель руководителя Центра геномных исследований мирового уровня «Центр предиктивной генетики, фармакогенетики и персонализированной терапии», ФГБНУ РНЦХ им. акад. Б.В. Петровского. </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 119991, г. Москва, Абрикосовский пер., д. 2.</p><p> </p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Assistant Professor, Vice Rector for Research and Innovation, Director of the Research Institute of Molecular and Personalized Medicine, Professor of the Department of Clinical Pharmacology and Therapy named after academician B.E. Votchal, Russian Medical Academy of Continuous Professional Education; Deputy Head of the Department of Pharmacogenetics and Personalized Therapy at the World-class Center for Genomic Research "Center for Predictive Genetics, Pharmacogenetics and Personalized Therapy", Russian Scientific Center of Surgery named after Academician B.V. Petrovsky. </p><p> </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>2 Abrikosovsky Ln., Moscow, Russia, 119991.</p></bio><email xlink:type="simple">karin05doc@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7531-1511</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лоран</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Loran</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, заведующий кафедрой урологии и хирургической андрологии, ФГБОУ ДПО РМАНПО Минздрава России; академик РАН. </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p> </p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Professor, Head of the Department of Urology and Surgical Andrology of Russian Medical Academy of Continuous Professional Education; Academician of the Russian Academy of Sciences. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p></bio><email xlink:type="simple">olegloran@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/0000-0002-4496-3680</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сычев</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sychev</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор, заведующий кафедрой клинической фармакологии и терапии им. академика Б.Е. Вотчала, ФГБОУ ДПО РМАНПО Минздрава России; научный руководитель Центра геномных исследований мирового уровня «Центр предиктивной генетики, фармакогенетики и персонализированной терапии», ФГБНУ РНЦХ им. акад. Б.В. Петровского; академик РАН. </p><p>Россия, 125993, г. Москва, ул. Баррикадная, д. 2/1, стр. 1.</p><p>Россия, 119991, г. Москва, Абрикосовский пер., д. 2.</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Professor, Rector, Head of Department of Clinical Pharmacology and Therapy named after academician B.E. Votchal, Russian Medical Academy of Continuous Professional Education; Academician of the Russian Academy of Sciences; Head of the Department of Pharmacogenetics and Personalized Therapy at the World-class Center for Genomic Research "Center for Predictive Genetics, Pharmacogenetics and Personalized Therapy", Russian Scientific Center of Surgery named after Academician B.V. Petrovsky. </p><p>2/1 Barrikadnaya Str., bldg. 1, Moscow, Russia, 125993.</p><p>2 Abrikosovsky Ln., Moscow, Russia, 119991.</p></bio><email xlink:type="simple">dimasychev@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение дополнительного профессионального  образования «Российская медицинская академия непрерывного профессионального образования»  Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy of Continuous Professional Education.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное учреждение дополнительного профессионального  образования «Российская медицинская академия непрерывного профессионального образования»  Министерства здравоохранения Российской Федерации.&#13;
2. Федеральное государственное автономное образовательное учреждение высшего образования Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский Университет).</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Russian Medical Academy of Continuous Professional Education.&#13;
2. Sechenov First Moscow State Medical University (Sechenov University).</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное учреждение дополнительного профессионального  образования «Российская медицинская академия непрерывного профессионального образования»  Министерства здравоохранения Российской Федерации.&#13;
2. Частное учреждение здравоохранения «Центральная клиническая больница «РЖД-медицина».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Russian Medical Academy of Continuous Professional Education.&#13;
2. Central Hospital «Russian Railways-Medicine».</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное учреждение дополнительного профессионального  образования «Российская медицинская академия непрерывного профессионального образования»  Министерства здравоохранения Российской Федерации.&#13;
2. Федеральное государственное бюджетное научное учреждение «Российский научный центр хирургии имени академика Б.В. Петровского».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Russian Medical Academy of Continuous Professional Education.&#13;
2. Russian Scientific Center of Surgery named after Academician B.V. Petrovsky.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное учреждение дополнительного профессионального  образования «Российская медицинская академия непрерывного профессионального образования»  Министерства здравоохранения Российской Федерации.&#13;
2. Государственное бюджетное учреждение здравоохранения города Москвы «Московский научно-практический центр лабораторных исследований Департамента здравоохранения города Москвы».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Russian Medical Academy of Continuous Professional Education.&#13;
2. Moscow Scientific and Practical Laboratory Research Center.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>11</month><year>2025</year></pub-date><volume>13</volume><issue>6</issue><fpage>487</fpage><lpage>499</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абдуллаев Ш.П., Буре И.В., Шатохин М.Н., Абдуллаев Ш.П., Бочков П.О., Тучкова С.Н., Мирзаев К.Б., Лоран О.Б., Сычев Д.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Абдуллаев Ш.П., Буре И.В., Шатохин М.Н., Абдуллаев Ш.П., Бочков П.О., Тучкова С.Н., Мирзаев К.Б., Лоран О.Б., Сычев Д.А.</copyright-holder><copyright-holder xml:lang="en">Abdullaev S.P., Bure I.V., Shatokhin M.N., Abdullaev S.P., Bochkov P.O., Tuchkova S.N., Mirzaev K.B., Loran O.B., Sychev D.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.pharmpharm.ru/jour/article/view/1762">https://www.pharmpharm.ru/jour/article/view/1762</self-uri><abstract><p>Несмотря на доказанную эффективность силодозина при симптомах нижних мочевых путей (СНМП), сохраняется значительная межиндивидуальная вариабельность ответа на фармакотерапию и развитие нежелательных явлений. Потенциальными факторами такой вариабельности являются фармакогенетические и эпигенетические механизмы регуляции метаболизма препарата.</p><sec><title>Цель</title><p>Цель. Оценить влияние полиморфизма CYP3A4*22 и уровня циркулирующей микроРНК miR-27b на фармакокинетику, эффективность и безопасность силодозина у пациентов с доброкачественной гиперплазией предстательной железы (ДГПЖ).</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование включено 98 пациентов с СНМП при ДГПЖ, которым назначался силодозин 8 мг/сут в течение 8 недель. Оценивались динамика IPSS и QoL, частота нежелательных явлений. Равновесная минимальная концентрация силодозина (Css) определялась методом ВЭЖХ-МС/МС. Генотипирование по CYP3A4*22 проводили методом ПЦР в реальном времени. Уровень экспрессии плазменной miR-27b определяли с помощью RT-qPCR.</p></sec><sec><title>Результаты</title><p>Результаты. Пациенты с генотипом CT (12,2%) имели достоверно более высокие значения Css по сравнению с носителями генотипа CC (13,44 [6,35; 16,6] против 6,15 [3,10; 11,31] нг/мл; p=0,005717). Несмотря на это, снижение выраженности симптомов по IPSS и улучшение QoL были сопоставимыми в обеих группах (p &gt;0,05). Корреляции между Css и динамикой IPSS выявлено не было (rs=-0,115554, p=0,257195). Уровни miR-27b не различались между генотипами и не коррелировали ни с Css, ни с клиническими исходами. Структура нежелательных явлений соответствовала установленному профилю безопасности силодозина; статистически значимых различий между генотипическими группами не установлено.</p></sec><sec><title>Заключение</title><p>Заключение. Носительство полиморфизма CYP3A4*22 ассоциируется с повышенной экспозицией силодозина, однако клиническая эффективность терапии остаётся независимой от указанного генетического маркёра. Данные о роли miR-27b в регуляции фармакокинетики и клинических исходов в данной популяции не подтвердились.</p></sec></abstract><trans-abstract xml:lang="en"><p>Despite the proven efficacy of silodosin for lower urinary tract symptoms (LUTSs), significant interindividual variability in response to pharmacotherapy and the development of adverse events persists. Potential factors for this variability include pharmacogenetic and epigenetic mechanisms regulating drug metabolism.</p><sec><title>The aim</title><p>The aim. To investigate the impact of CYP3A4*22 polymorphism and circulating microRNA miR-27b level on the pharmacokinetics, efficacy, and safety of silodosin in patients with benign prostatic hyperplasia (BPH).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study included 98 patients with LUTS due to BPH who were prescribed silodosin 8 mg/day for 8 weeks. IPSS and QoL dynamics, and the frequency of adverse events were assessed. The steady-state minimum concentration of silodosin (Css) was determined by HPLC-MS/MS. Genotyping for CYP3A4*22 was performed by real-time PCR. The expression level of plasma miR-27b was determined using RT-qPCR.</p></sec><sec><title>Results</title><p>Results. Patients with the CT genotype (12.2%) had significantly higher Css values compared to carriers of the CC genotype (13.44 [6.35; 16.6] vs 6.15 [3.10; 11.31] ng/mL; p = 0.005717). Despite this, the reduction in symptom severity according to IPSS and improvement in QoL were comparable in both groups (p &gt;0.05). No correlation was found between Css and IPSS dynamics (rs = -0.115554, p = 0.257195). MiR-27b levels did not differ between genotypes and did not correlate with either Css or clinical outcomes. The structure of adverse events corresponded to the established safety profile of silodosin; no statistically significant differences were found between genotypic groups.</p></sec><sec><title>Conclusion</title><p>Conclusion. Carrying the CYP3A4*22 polymorphism is associated with increased silodosin exposure, but the clinical efficacy of therapy remains independent of this genetic marker. Data on the role of miR-27b in regulating pharmacokinetics and clinical outcomes in this population were not confirmed.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>силодозин</kwd><kwd>CYP3A4*22</kwd><kwd>фармакогенетика</kwd><kwd>микроРНК</kwd><kwd>miR-27b</kwd><kwd>доброкачественная гиперплазия предстательной железы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>silodosin</kwd><kwd>CYP3A4*22</kwd><kwd>pharmacogenetics</kwd><kwd>microRNA</kwd><kwd>miR-27b</kwd><kwd>benign prostatic hyperplasia</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа была выполнена при поддержке гранта Российского научного фонда (проект № 23-15-00310; https://rscf.ru/project/23-15-00310/).</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation grant (project No. 23-15-00310; https://rscf.ru/project/23-15-00310/).</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">Chughtai B., Forde J.C., Thomas D.D., Laor L., Hossack T., Woo H.H., Te A.E., Kaplan S.A. 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