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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="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">I.P. Pavlov Journal of Higher Nervous Activity</journal-id><journal-title-group><journal-title xml:lang="en">I.P. Pavlov Journal of Higher Nervous Activity</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал высшей нервной деятельности им. И.П. Павлова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-4677</issn><issn publication-format="electronic">3034-5316</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">652062</article-id><article-id pub-id-type="doi">10.31857/S0044467724060033</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ОБЗОРЫ И ТЕОРЕТИЧЕСКИЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The role of action depolymerization in the changes of inhibitory control during long-term potentiation of excitatory transmission in the rat hippocampus</article-title><trans-title-group xml:lang="ru"><trans-title>Роль деполимеризации актина в изменении тормозных влияний на долговременную потенциацию возбуждающих синапсов гиппокампа крыс</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kudryashova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Кудряшова</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>iv_kudryashova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Higher Nervous Activity and Neurophysiology RAS</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение науки «Институт высшей нервной деятельности и нейрофизиологии РАН»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-11" publication-format="electronic"><day>11</day><month>12</month><year>2024</year></pub-date><volume>74</volume><issue>6</issue><fpage>667</fpage><lpage>686</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0044-4677/article/view/652062">https://innoscience.ru/0044-4677/article/view/652062</self-uri><abstract xml:lang="en"><p>The plasticity of<italic> </italic>inhibitory resposes during CA3-CA1 long-term potentiation (LTP) in<italic> </italic>the rat hippocampal slices was studied by<italic> </italic>the method of<italic> </italic>paired-pulse stimulation. Coefficients of<italic> </italic>inhibition were estimated by<italic> </italic>the differences between IPSP dependent and independent paired-pulse plasticity. In<italic> </italic>the experimental group high frequency stimulation of<italic> </italic>Schaffer collaterals was delivered under jasplakinolide exposure, this inhibitor of<italic> </italic>actin depolymerization is<italic> </italic>used also as<italic> </italic>activator of<italic> </italic>actin polymerization. It<italic> </italic>was shown that the feature of<italic> </italic>LTP development after induction with blockade of actin depolymerization include altered modification profile of<italic> </italic>inhibition, specifically involved in<italic> </italic>resposes to<italic> </italic>paired-pulse stimulation. Initial enhancement of inhibition depended on the value before tetanization. Therefore this factor may be responsible for between-group differences and it was taken into account in the evaluation of specific for posttetanic depolymerization changes. In result, this phase is related to disinhibition disorder during LTP consolidation and maintenance. It may be assumed that coordinating role of actin cytoskeleton is essential for balanced modifications of excitatory and inhibitory transmission during long-term plasticity.</p></abstract><trans-abstract xml:lang="ru"><p>Для исследования изменения эффективности торможения при долговременной потенциации в поле СА1 переживающих срезов гиппокампа крыс был использован метод парной стимуляции. Коэффициенты торможения вычисляли по соотношению зависимых и независимых от ТПСП реакций. В экспериментальной группе срезов тетанизация коллатералей Шаффера производиласть на фоне джасплакинолида, ингибитора деполимеризации, применяемого также для индукции полимеризации актина. Обнаружено, что особенности развития СА1 LTP при индукции на фоне блокады деполимеризации актина включают изменение динамики модификаций тормозного компонента реакций на парную стимуляцию. Первоначальное усиление торможения зависело от его исходного уровня, и изменения при аппликации джасплакиналида до начала тетанизации могут быть главной причиной межгрупповых различий. Поэтому этот фактор учитывался при анализе изменений, специфичных для блокады ранней фазы деполимеризации актина. Показано, что к ним относится нарушение процесса растормаживания в фазе консолидации и поддержания LTP. Предполагается, что координирующая роль актинового цитоскелета определяет сбалансированность долговременных модификаций возбуждающих и тормозных синапсов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hippocampus</kwd><kwd>long-term potentiation</kwd><kwd>synaptic destabilization</kwd><kwd>actin depolymerization</kwd><kwd>jasplakinolide</kwd><kwd>disinhibition</kwd><kwd>disynaptic inhibitory potentials</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гиппокамп</kwd><kwd>долговременная потенциация</kwd><kwd>дестабилизации синапсов</kwd><kwd>деполимеризация актина</kwd><kwd>джасплакинолид</kwd><kwd>растормаживание</kwd><kwd>бисинаптическое торможение</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>АААА-А17-117092040002-6</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Кудряшова И.В. 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