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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">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">30538</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2022-26-1-69-78</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physiology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физиология</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">Astragalus membranaceus infusion effect on rats learning in the radial maze</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние настоя Astragalus membranaceus на обучение крыс в радиальном лабиринте</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8043-3142</contrib-id><name-alternatives><name xml:lang="en"><surname>Karetnikova</surname><given-names>Alena Yu.</given-names></name><name xml:lang="ru"><surname>Каретникова</surname><given-names>А. Ю.</given-names></name></name-alternatives><email>ndurnova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1714-9165</contrib-id><name-alternatives><name xml:lang="en"><surname>Matvienko</surname><given-names>Uliana A.</given-names></name><name xml:lang="ru"><surname>Матвиенко</surname><given-names>У. А.</given-names></name></name-alternatives><email>ndurnova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7825-3620</contrib-id><name-alternatives><name xml:lang="en"><surname>Savinova</surname><given-names>Daria A.</given-names></name><name xml:lang="ru"><surname>Савинова</surname><given-names>Д. А.</given-names></name></name-alternatives><email>ndurnova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4954-4717</contrib-id><name-alternatives><name xml:lang="en"><surname>Denikaeva</surname><given-names>Elvira A.</given-names></name><name xml:lang="ru"><surname>Деникаева</surname><given-names>Э. А.</given-names></name></name-alternatives><email>ndurnova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4628-9519</contrib-id><name-alternatives><name xml:lang="en"><surname>Durnova</surname><given-names>Natalya A.</given-names></name><name xml:lang="ru"><surname>Дурнова</surname><given-names>Н. А.</given-names></name></name-alternatives><email>ndurnova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saratov State Medical University</institution></aff><aff><institution xml:lang="ru">Саратовский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-03-21" publication-format="electronic"><day>21</day><month>03</month><year>2022</year></pub-date><volume>26</volume><issue>1</issue><issue-title xml:lang="en">PHYSIOLOGY</issue-title><issue-title xml:lang="ru">ФИЗИОЛОГИЯ</issue-title><fpage>69</fpage><lpage>78</lpage><history><date date-type="received" iso-8601-date="2022-03-21"><day>21</day><month>03</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Karetnikova A.Y., Matvienko U.A., Savinova D.A., Denikaeva E.A., Durnova N.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Каретникова А.Ю., Матвиенко У.А., Савинова Д.А., Деникаева Э.А., Дурнова Н.А.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Karetnikova A.Y., Matvienko U.A., Savinova D.A., Denikaeva E.A., Durnova N.A.</copyright-holder><copyright-holder xml:lang="ru">Каретникова А.Ю., Матвиенко У.А., Савинова Д.А., Деникаева Э.А., Дурнова Н.А.</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/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/30538">https://journals.rudn.ru/medicine/article/view/30538</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Relevance. Treatment of cognitive impairment is a serious problem for modern medicine. Alzheimer’s disease and Parkinson’s disease are chronic progressive neurodegenerative diseases and the most common cause of progressive dementia in the elderly. There is no effective therapy for these diseases, so it is necessary to search for integrated therapies, including herbal medicine. The aim was to study a short-term and long-term memory of rats in the test «eight-arm radial maze» under the infl of repeated administration of an aqueous extract of the herb Astragalus membranaceus (Fisch.) Bunge. Materials and Methods. The experiment was carried out on 18 non-linear rats, divided into 3 groups - control and 2 experimental. For 21 days, the animals received daily intragastric caffeine at a dose of 5 mg/kg, infusion an aqueous extract of Astragalus membranaceus (Fisch.) Bunge at a dose of 100 mg/kg. The control was injected with drinking water by weight. To study the cognitive functions of the maze, performing two series of tests - at 2-7 and 16-21. Results and Discussion. In the course of the study, it was found that when the animals were tested for 2-7 days, there were no signifi changes between the groups. With an increase in the duration of administration of the test substances by the 16-21 days of the experiment, in the second test series, an increase in memory points was observed both in the second (caffeine, 5 mg/kg) and in the third ( Astragalus membranaceus (Fisch.) Bunge, 100 mg/kg) of the experimental groups. Conclusion. The introduction of caffeine at a dosage of 5 mg/kg infl d the activation of short-term and long-term memory with a duration of more than 17 days of administration - at the 2nd stage of testing. Astragalus membranaceus (Fisch.) Bunge (100 mg/kg) caused the activation of working and long-term spatial memory from the 16th day of the experiment - on the 2nd series of tests.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Актуальность . Лечение когнитивных нарушений представляет собой серьезную проблему современной медицины. Болезнь Альцгеймера и болезнь Паркинсона являются хроническими прогрессирующим нейродегенеративными заболеваниями и наиболее распространенной причиной развития прогрессирующей деменции у пожилых людей. Эффективной терапии этих заболеваний не существует, поэтому необходим поиск интегрированных методы лечения, включая фитотерапию. Цель исследования - изучение кратковременной и долговременной памяти крыс в тесте «восьмирукавный радиальный лабиринт» под влиянием многократного введения настоя травы астрагала перепончатого ( Astragalus membranaceus (Fisch.) Bunge). Материалы и методы . Эксперимент был проведен на 18 нелинейных крысах, разделенных на 3 группы - контрольную и 2 опытные. Животные в течение 21-х суток ежедневно внутрижелудочно получали кофеин в дозе 5 мг/кг, настой астрагала перепончатого в дозе 100 мг/кг. Контрольной группе вводили питьевую воду по массе. Для изучения когнитивных функций проводили тест радиальный лабиринт, выполняя две серии тестирований - на 2-7 и 16-21 сутки. Результаты и обсуждение . В ходе проведенного исследования было установлено, что при продолжительности тестирования животных на протяжении 2-7 дней, значимые изменения между группами отсутствовали. При увеличении длительности введения исследуемых веществ к 16-21 суткам эксперимента при второй серии тестирования наблюдалось увеличение баллов памяти как у второй (кофеин, 5 мг/кг), так и у третьей (астрагал перепончатый, 100 мг/кг) опытных групп. Выводы . Введение кофеина в дозировке 5 мг/кг влияло на активацию кратковременной и долговременной памяти при продолжительности введения более 17-ти суток- на 2-ом этапе тестирования. Астрагал перепончатый (100 мг/кг) вызывал активацию рабочей и долговременной пространственной памяти с 16-х суток эксперимента - на 2-ой серии тестов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Astragalus membranaceus (Fisch.) Bunge</kwd><kwd>infusion</kwd><kwd>extract</kwd><kwd>cognitive functions</kwd><kwd>behavioral responses</kwd><kwd>caffeine</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Astragalus membranaceus (Fisch.) Bunge</kwd><kwd>настой</kwd><kwd>экстракт</kwd><kwd>когнитивные функции</kwd><kwd>поведенческие реакции</kwd><kwd>кофеин</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">May BH, Lit M, Xue C, Yang A.W, Zhang AL, Owens MD, Head R, Cobiac L, Li CG, Hugel H, Story DF. 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