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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2022-7.4.22</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-3660</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Изменения соматосенсорных вызванных потенциалов у крыс, перенёсших обратимую церебральную ишемию</article-title><trans-title-group xml:lang="en"><trans-title>Changes in somatosensory evoked potentials in rats following transient cerebral ischemia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4199-5318</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сысоев</surname><given-names>Ю. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sysoev</surname><given-names>Yu. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сысоев Юрий Игоревич – кандидат биологических наук, доцент кафедры фармакологии и клинической фармакологии, ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России; научный сотрудник лаборатории нейропротезов, Институт трансляционной биомедицины, ФГБОУ ВО «Санкт-Петербургский государственный университет»; старший научный сотрудник лаборатории нейромодуляции двигательных и висцеральных функций, ФГБУН «Институт физиологии им. И.П. Павлова» РАН; научный сотрудник лаборатории направленной внутримозговой доставки препаратов, ФГБУН «Институт мозга человека им. Н.П. Бехтеревой» РАН</p><p>197376, г. Санкт-Петербург, ул. Профессора Попова, 4; 199034, г. Санкт-Петербург, Университетская наб., 7-9, пом. 1050; 199034, г. Санкт-Петербург, наб. Макарова, 6; 197376, г. Санкт-Петербург, ул. Академика Павлова, 12А </p></bio><bio xml:lang="en"><p>Yuriy I. Sysoev – Cand. Sc. (Biol.), Associate Professor at the Department of Pharmacology and Clinical Pharmacology, Saint Petersburg State Chemical and Pharmaceutical University; Research Officer at the Laboratory of Neuroprosthetics, Institute of Translational Biomedicine, Saint Petersburg State University; Senior Research Officer at the Laboratory of Neuromodulation of Motor and Visceral Functions, Pavlov Institute of Physiology, Russian Academy of Sciences; Research Officer at the Laboratory of Targeted Intra-Brain Drug Delivery, N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</p><p>Professora Popova str. 4, Saint Petersburg 197376; Universitetskaya embankment 7-9, unit 1050, Saint Petersburg 199034; Makarova embankment 6, Saint Petersburg 199034; Akademika Pavlova str. 12A, Saint Petersburg 197376</p></bio><email xlink:type="simple">susoyev92@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/0000-0002-4690-1811</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Приходько</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Prikhodko</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Приходько Вероника Александровна – аспирант, ассистент кафедрыфармакологиииклиническойфармакологии, ФГБОУВО«Санкт-Петербургскийгосударственныйхимико-фармацевтический университет» Минздрава России; младший научный сотрудник лаборатории направленной внутримозговой доставки препаратов, ФГБУН «Институт мозга человека им. Н.П. Бехтеревой» РАН</p><p>197376, г. Санкт-Петербург, ул. Профессора Попова, 4; 197376, г. Санкт-Петербург, ул. Академика Павлова, 12А </p></bio><bio xml:lang="en"><p>Veronika A. Prikhodko – Postgraduate, Teaching Assistant at the Department of Pharmacology and Clinical Pharmacology, Saint Petersburg State Chemical and Pharmaceutical University; Junior Research Officer at the Laboratory of Targeted Intra-Brain Drug Delivery, N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</p><p>Professora Popova str. 4, Saint Petersburg 197376; Akademika Pavlova str. 12A, Saint Petersburg 197376</p></bio><email xlink:type="simple">veronika.prihodko@pharminnotech.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1343-4663</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титович</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Titovich</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Титович Ирина Александровна – кандидат биологических наук, доцент кафедры фармакологии и клинической фармакологии</p><p>197376, г. Санкт-Петербург, ул. Профессора Попова, 4</p></bio><bio xml:lang="en"><p>Irina A. Titovich – Cand. Sc. (Biol.), Associate Professor at the Department of Pharmacology and Clinical Pharmacology</p><p>Professora Popova str. 4, Saint Petersburg 197376</p></bio><email xlink:type="simple">irina.titovich@pharminnotech.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7972-1286</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карев</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Karev</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карев Вадим Евгеньевич – доктор медицинских наук, руководитель отдела тканевых и патоморфологических методов исследования</p><p>197022, г. Санкт-Петербург, ул. Профессора Попова, 9</p></bio><bio xml:lang="en"><p>Vadim E. Karev – Dr. Sc. (Med.), Head of the Department of Tissue and Pathomorphological Research Methods</p><p>Professora Popova str. 9, Saint Petersburg 197022</p></bio><email xlink:type="simple">vadimkarev@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/0000-0003-4294-5531</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оковитый</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Okovityy</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Владимирович Оковитый – доктор медицинских наук, заведующий кафедрой фармакологии и клинической фармакологии, ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России; заведующий лабораторией направленной внутримозговой доставки препаратов, ФГБУН «Институт мозга человека им. Н.П. Бехтеревой» РАН</p><p>197376, г. Санкт-Петербург, ул. Профессора Попова, 4; 197376, г. Санкт-Петербург, ул. Академика Павлова, 12А</p></bio><bio xml:lang="en"><p>Sergey V. Okovityy – Dr. Sc. (Med.), Professor, Head of the Department of Pharmacology and Clinical Pharmacology, Saint Petersburg State Chemical and Pharmaceutical University; Head  of the Laboratory of Targeted Intra-Brain Drug Delivery, N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</p><p>Professora Popova str. 4, Saint Petersburg 197376</p></bio><email xlink:type="simple">sergey.okovity@pharminnotech.com</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России; &#13;
Институт трансляционной биомедицины, ВО «Санкт-Петербургский государственный университет»; &#13;
ФГБУН «Институт физиологии им. И.П. Павлова» РАН; &#13;
ФГБУН «Институт мозга человека им. Н.П. Бехтеревой» РАН</institution></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical and Pharmaceutical University; &#13;
Institute of Translational Biomedicine, Saint Petersburg State University; &#13;
Pavlov Institute of Physiology, Russian Academy of Sciences; &#13;
N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России; &#13;
ФГБУН «Институт мозга человека им. Н.П. Бехтеревой»</institution></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical and Pharmaceutical University; &#13;
N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России</institution></aff><aff xml:lang="en"><institution>Saint Petersburg State Chemical and Pharmaceutical University</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБУ «Детский научно-клинический центр инфекционных болезней Федерального медико-биологического агентства»</institution></aff><aff xml:lang="en"><institution>Pediatric Research and Clinical Center for Infectious Diseases under the Federal Medical Biological Agency</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Минздрава России; &#13;
ФГБУН «Институт мозга человека им. Н.П. Бехтеревой» РАН</institution></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical and Pharmaceutical University; &#13;
N.P. Bekhtereva Institute of the Human Brain of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>03</day><month>09</month><year>2022</year></pub-date><volume>7</volume><issue>4</issue><fpage>190</fpage><lpage>200</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сысоев Ю.И., Приходько В.А., Титович И.А., Карев В.Е., Оковитый С.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сысоев Ю.И., Приходько В.А., Титович И.А., Карев В.Е., Оковитый С.В.</copyright-holder><copyright-holder xml:lang="en">Sysoev Y.I., Prikhodko V.A., Titovich I.A., Karev V.E., Okovityy S.V.</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.actabiomedica.ru/jour/article/view/3660">https://www.actabiomedica.ru/jour/article/view/3660</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Церебральная ишемия, индуцируемая путём временной окклюзии среднемозговой артерии, является одной из наиболее популярных моделей ишемического инсульта для оценки нейропротекторной активности новых лекарственных средств. Возможность использования нейрофизиологических методов (электроэнцефалографии, электрокортикографии, регистрации вызванных потенциалов и др.) для оценки эффективности новых фармакотерапевтических методик с использованием вышеуказанной модели представляет большой интерес для биомедицинских исследований.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: выявление характерных изменений соматосенсорных вызванных потенциалов, возникающих у крыс при церебральной ишемии, вызванной окклюзией среднемозговой артерии.</p></sec><sec><title>Методы</title><p>Методы. Эксперименты были выполнены на 18 белых беспородных крысахсамцах, разделённых на три группы по 6 особей: 1) контроль (условно здоровые животные); 2) ИШ-30 (30-минутная окклюзия среднемозговой артерии); 3) ИШ-45 (45-минутная окклюзия). На 7-е сутки после операции проводили регистрацию ответов коры при токовой стимуляции n. ischiadicus поочерёдно с правой и левой стороны. Для пиков N1, P2, N2, P3 и N3 кривых ответов измеряли амплитуды и латентность, а также амплитуды и длительность межпиковых интервалов. Для оценки связи между длительностью ишемии и значениями оцениваемых показателей рассчитывали коэффициент ранговой корреляции Спирмена, для оценки тесноты связи между признаками использовали шкалу Чеддока.</p></sec><sec><title>Результаты</title><p>Результаты. У крыс, перенёсших церебральную ишемию, было показано снижение амплитуд отдельных пиков ипсии контралатеральных соматосенсорных потенциалов, вызванных стимуляцией n. ischiadicus. Для ишемизированного полушария было характерно снижение амплитуды пиков P2 и N3, межпикового интервала P3–N3 ипсилатеральных ответов, амплитуды пика P3 и длительности межпикового интервала N2–P3 контралатеральных ответов.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные указывают на то, что метод регистрации и анализа соматосенсорных вызванных потенциалов может быть использован как инструмент оценки функционального состояния проводящих путей головного мозга у крыс, перенёсших церебральную ишемию.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Cerebral ischemia induced by transient middle cerebral artery occlusion is one of the most popular ischemic stroke models used to evaluate drug candidates with neuroprotective properties. The possibilities of combining this model with neurophysiological techniques (e.g., electroencephalography, electrocorticography, evoked potential registration, etc.) to assess the effectiveness of novel pharmacotherapeutic strategies appear to be of great interest to current biomedical research.</p></sec><sec><title>The aim</title><p>The aim. Identifying specific changes in somatosensory evoked potentials occurring after cerebral ischemia induced by middle cerebral artery occlusion in rats.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. A total number of 18 white outbred male rats were randomized into 3 groups by 6 animals in each: 1) control (presumably healthy animals); 2) ischemia-30 (30-minute middle cerebral artery occlusion); 3) ischemia-45 (45-minute occlusion). At post-surgery day 7, cortical responses to sequential electrical stimulation of left and right n. ischiadicus were registered. N1, P2, N2, P3, and N3 peak latencies and amplitudes, peak-to-peak interval durations and amplitudes were calculated. Spearman’s rank correlation coefficients were used to assess the relationship between ischemia duration and evoked potential parameters, and the Chaddock scale was used to qualitatively evaluate the strength of correlations.</p></sec><sec><title>Results</title><p>Results. The rats subjected to cerebral ischemia demonstrated a decrease in some of the peak amplitudes of the ipsi- and contralateral somatosensory potentials evoked by n. ischiadicus stimulation. In the injured hemisphere, decreased P2 and N3 peak and P3–N3 interval amplitudes were registered ipsilaterally, and decreased P3 peak amplitudes and N2–P3 interval durations were observed contralaterally.</p></sec><sec><title>Conclusions</title><p>Conclusions. The obtained data suggest that somatosensory evoked potential registration and analysis can be used to evaluate the functional state of central nerve tracts in rats subjected to cerebral ischemia.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ишемический инсульт</kwd><kwd>церебральная ишемия</kwd><kwd>электроэнцефалография</kwd><kwd>электрокортикография</kwd><kwd>соматосенсорные вызванные потенциалы</kwd><kwd>крысы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ischemic stroke</kwd><kwd>brain ischemia</kwd><kwd>electroencephalography</kwd><kwd>electrocorticography</kwd><kwd>evoked potentials</kwd><kwd>somatosensory</kwd><kwd>rats</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках проекта № 93022798 ФГБОУ ВО СПбГУ и поддержана грантом Российского научного фонда (РНФ) 22-15-00092. Работа выполнена с использованием оборудования ЦКП «Аналитический центр ФГБОУ ВО СПХФУ Минздрава России» в рамках соглашения № 075-15-2021-685 от 26.07.2021 при финансовой поддержке Минобрнауки России.</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">Muzyka IM, Estephan B. Somatosensory evoked potentials. Handb Clin Neurol. 2019; 160: 523-540. doi: 10.1016/B978-0-44464032-1.00035-7</mixed-citation><mixed-citation xml:lang="en">Muzyka IM, Estephan B. Somatosensory evoked potentials. Handb Clin Neurol. 2019; 160: 523-540. doi: 10.1016/B978-0-44464032-1.00035-7</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Алифирова В.М., Толмачев И.В., Королева Е.С., Кучерова К.С. 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