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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2026-2959</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-2959</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Взаимосвязь экспрессии β1-  и β2-адренорецепторов с фиброзным ремоделированием миокарда у пациентов с ишемической болезнью сердца и артериальной гипертензией</article-title><trans-title-group xml:lang="en"><trans-title>Expression patterns of β1- and β2-adrenergic receptors as a reflection of myocardial structural remodeling in ischemic heart disease</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8543-6027</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Степанов Иван Вадимович, канд. мед. наук, заведующий патологоанатомическим отделением, врач-патологоанатом</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">i_v_stepanov@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/0000-0003-3667-9599</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Реброва</surname><given-names>Т. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Rebrova</surname><given-names>T. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Реброва Татьяна Юрьевна, канд. мед. наук, научный сотрудник, лаборатория молекулярно-клеточной патологии и генодиагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">rebrova@cardio-tomsk.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/0000-0002-4004-2497</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондратьева</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondratyeva</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кондратьева Дина Степановна, д-р биол. наук, старший научный сотрудник, лаборатория молекулярно-клеточной патологии и генодиагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">dina@cardio-tomsk.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/0000-0001-7361-2161</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муслимова</surname><given-names>Э. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Muslimova</surname><given-names>E. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Муслимова Эльвира Фаритовна, канд. мед. наук, научный сотрудник, лаборатория молекулярно-клеточной патологии и генодиагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">muslimova@cardio-tomsk.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/0000-0003-4049-8715</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андреев</surname><given-names>С. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreev</surname><given-names>S. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андреев Сергей Леонидович, канд. мед. наук, старший научный сотрудник, отделение сердечно-сосудистой хирургии</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">cardiolog@cardio-tomsk.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/0000-0002-5638-3034</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фальковская</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Falkovskaya</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фальковская Алла Юрьевна, д-р мед. наук, заведующий отделением артериальных гипертоний</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">alla@cardio-tomsk.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/0000-0003-4066-869X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Личикаки</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lichikaki</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Личикаки Валерия Анатольевна, канд. мед. наук, научный сотрудник, отделение артериальных гипертоний</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">ichikaki@cardio-tomsk.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/0000-0001-6066-3998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афанасьев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Afanasyev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Афанасьев Сергей Александрович, д-р мед. наук, профессор, заведующий лабораторией молекулярно-клеточной патологии и генодиагностики</p><p>634012, Российская Федерация, Томск, ул. Киевская, 111а</p></bio><bio xml:lang="en"><p>111a, Kievskaya str., Tomsk, 634012, Russian Federation</p></bio><email xlink:type="simple">tursky@cardio-tomsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр Российской академии наук (НИИ кардиологии Томского НИМЦ)<country>Россия</country></aff><aff xml:lang="en">Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences (Cardiology Research Institute, Tomsk NRMC)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>17</day><month>04</month><year>2026</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>2959</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Степанов И.В., Реброва Т.Ю., Кондратьева Д.С., Муслимова Э.Ф., Андреев С.Л., Фальковская А.Ю., Личикаки В.А., Афанасьев С.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Степанов И.В., Реброва Т.Ю., Кондратьева Д.С., Муслимова Э.Ф., Андреев С.Л., Фальковская А.Ю., Личикаки В.А., Афанасьев С.А.</copyright-holder><copyright-holder xml:lang="en">Stepanov I.V., Rebrova T.Y., Kondratyeva D.S., Muslimova E.F., Andreev S.L., Falkovskaya A.Y., Lichikaki V.A., Afanasyev S.A.</copyright-holder><license 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.sibjcem.ru/jour/article/view/2959">https://www.sibjcem.ru/jour/article/view/2959</self-uri><abstract><sec><title>Введение</title><p>Введение. Хроническая ишемическая болезнь сердца (ИБС) сопровождается прогрессирующим ремоделированием миокарда, обусловленным одновременным влиянием как ишемического фактора, так и гемодинамической нагрузки. При этом длительная активация симпатической нервной системы сопровождается изменением β-адренергической сигнализации, что может влиять на выраженность и топографию фиброзной перестройки миокарда.</p></sec><sec><title>Цель</title><p>Цель: оценить взаимосвязь параметров экспрессии β1- и β2-адренорецепторов в кардиомиоцитах с различными паттернами миокардиального фиброза у пациентов с хронической ИБС и определить влияние сопутствующей артериальной гипертензии (АГ) на особенности ремоделирования миокарда.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В пилотное исследование были включены 29 пациентов с хронической ИБС, которым выполнялось плановое аортокоронарное шунтирование. В зависимости от наличия АГ пациенты были распределены на группы с ИБС (n = 17) и с ИБС + АГ (n = 12). Гистологически анализировали образцы ушка правого предсердия. Выраженность и топографию фиброза оценивали при окраске по Ван Гизону. Иммуногистохимически определяли интенсивность экспрессии ADRB1 и ADRB2 в кардиомиоцитах. Ассоциации анализировали с использованием коэффициента Спирмена и модели пропорциональных шансов после включения переменной АГ в регрессионную модель.</p></sec><sec><title>Результаты</title><p>Результаты. Фиброз был выявлен во всех случаях. Общая выраженность фиброза между группами не различалась, однако при сочетании ИБС с АГ отмечалось изменение распределения субэпикардиального фиброза (p = 0,008). В объединенной выборке снижение интенсивности экспрессии ADRB1 было ассоциировано с большей выраженностью субэндокардиального фиброза (ρ = −0,49; p = 0,007); связь сохранялась и после учета наличия АГ (OR = 0,17; p = 0,014). Для ADRB2 была выявлена отрицательная корреляция с выраженностью субэпикардиального фиброза (ρ = −0,43; p = 0,020), однако после включения переменной АГ в регрессионную модель статистическая значимость ослабевала (p = 0,074).</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные указывают на неоднородность фиброзной перестройки миокарда при хронической ИБС. Снижение экспрессии β1- адренорецепторов связано преимущественно с субэндокардиальным направлением ремоделирования и сохраняет независимый характер, тогда как влияние β2-адренорецепторов на субэпикардиальный фиброз менее устойчиво и частично определяется клиническим фенотипом. АГ выступает фактором, модифицирующим топографию фиброзной перестройки.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Chronic ischemic heart disease (IHD) is characterized by progressive myocardial remodeling caused by the combined effects of persistent ischemia and hemodynamic overload. Sustained activation of the sympathetic nervous system leads to alterations in β-adrenergic signaling, which may influence both the extent and spatial distribution of myocardial fibrosis.</p></sec><sec><title>Aim</title><p>Aim: To evaluate the association between β1- and β2-adrenergic receptor expression in cardiomyocytes and topographic patterns of myocardial fibrosis in patients with chronic IHD, and to determine the modifying effect of concomitant arterial hypertension on myocardial remodeling.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. This pilot study included 29 patients with chronic IHD undergoing elective coronary artery bypass grafting. According to the presence of hypertension, patients were stratified into an IHD group (n = 17) and an IHD with hypertension group (n = 12). Right atrial appendage specimens were analyzed. The extent and distribution of fibrosis were assessed using Van Gieson staining. Immunohistochemistry was performed to determine ADRB1 and ADRB2 expression intensity in cardiomyocytes. Associations were evaluated using Spearman’s rank correlation and proportional odds regression adjusted for arterial hypertension.</p></sec><sec><title>Results</title><p>Results. Myocardial fibrosis was present in all cases. Although the overall burden of fibrosis did not differ between groups, patients with concomitant arterial hypertension demonstrated a distinct distribution of subepicardial fibrosis (p = 0.008). In the pooled cohort, lower ADRB1 expression intensity was significantly associated with greater subendocardial fibrosis severity (ρ = −0.49; p = 0.007), and this relationship remained independent after arterial hypertension (OR = 0.17; p = 0.014). ADRB2 expression intensity showed an inverse correlation with subepicardial fibrosis (ρ = −0.43; p = 0.020); however, statistical significance was attenuated after adjustment for arterial hypertension (p = 0.074).</p></sec><sec><title>Conclusions</title><p>Conclusions. These findings support the concept of spatial heterogeneity in myocardial fibrotic remodeling in chronic IHD. Reduced β1-adrenergic receptor expression is independently associated with subendocardial remodeling, consistent with an ischemia-driven pattern of injury. In contrast, the relationship between β2- adrenergic receptor expression and subepicardial fibrosis appears less robust and partially influenced by clinical phenotype. Arterial hypertension modifies the topographic distribution of fibrosis without increasing its overall burden.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>β-адренорецепторы</kwd><kwd>ишемическая  болезнь  сердца</kwd><kwd>артериальная  гипертензия</kwd><kwd>миокардиальный  фиброз</kwd><kwd>ремоделирование</kwd><kwd>иммуногистохимия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>β-adrenergic receptors</kwd><kwd>ischemic heart disease</kwd><kwd>arterial hypertension</kwd><kwd>myocardial fibrosis</kwd><kwd>cardiac remodeling</kwd><kwd>immunohistochemistry</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>исследование выполнено в рамках государственного задания Министерства науки и высшего образования Российской Федерации, № государственной регистрации 122020300183-4.</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">Parichatikanond W., Duangrat R., Kurose H., Mangmool S. 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