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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestim-356</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>КЛИНИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ИНТРАНАЗАЛЬНОЙ АППЛИКАЦИИ ГАММА-АМИНОМАСЛЯНОЙ КИСЛОТЫ НА ПРОЦЕССЫ ЗАПОМИНАНИЯ У КРЫС В УСЛОВИЯХ ГИПОКСИИ</article-title><trans-title-group xml:lang="en"><trans-title>IMPACT OF THE INTRANASAL APPLICATION OF GAMMA-AMINOBUTYRIC ACID ON THE MEMORY PROCESSES OF RATS UNDER HYPOXIA CONDITIONS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миронова</surname><given-names>Г. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mironova</surname><given-names>G. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, ст. науч. сотрудник.</p></bio><bio xml:lang="en"><p>Ph. D. (Biol.), Senior researcher.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пашкевич</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkevich</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, заведующий лабораторией.</p></bio><bio xml:lang="en"><p>Ph. D. (Biol.), Head of the Laboratory.</p></bio><email xlink:type="simple">skypasht@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физиологии НАН Беларуси</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Institute of Physiology of the National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>01</day><month>03</month><year>2017</year></pub-date><volume>0</volume><issue>1</issue><fpage>103</fpage><lpage>110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Миронова Г.П., Пашкевич С.Г., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Миронова Г.П., Пашкевич С.Г.</copyright-holder><copyright-holder xml:lang="en">Mironova G.P., Pashkevich S.G.</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://vestimed.belnauka.by/jour/article/view/356">https://vestimed.belnauka.by/jour/article/view/356</self-uri><abstract><p>В экспериментах на 22 половозрелых крысах-самцах, у которых в челночной камере предварительно выработан условный рефлекс избегания, установлено, что после однократной аппликации гамма-аминомасляной кислоты (3 мг/мл в объеме 20 мкл) на слизистую оболочку полости носа крыс процесс угасания условного рефлекса замедляется на 2–3 недели по сравнению с контролем. Интраназальная аппликация гамма-аминомасляной кислоты, предшествующая 5-минутной гипобарической гипоксии, способствует восстановлению естественного угасания условного рефлекса, характерного для контрольных животных. Таким образом, воздействие на вомероназальный орган крыс классического тормозного медиатора вызывает перестройку интегративной деятельности мозга и способствует улучшению механизмов обучения и памяти, которыепри снижении напряжения кислорода в тканях мозга весьма уязвимы.</p></abstract><trans-abstract xml:lang="en"><p>In the experiments on 22 adult male rats with a conditioned reflex of avoidance prepared in the shuttle chamber, it was found that a single application of gamma-amino butyric acid (3 mg/ml in a volume of 20 μl) at the nasal mucosa of rats was accompanied by deceleration of the extinction process of the conditioned reflex to 2–3 weeks compared with controls. The intranasal application of gamma-amino butyric acid before hypobaric hypoxia (5 min) contributed to the restoration of the natural pattern of extinction of the conditioned reflex, which was typical for the control animals.Thus, the impact of classical inhibitory neurotransmitter on the vomeronasal organ in rats was characterized by the restructuring of the integrative activity of the brain and the improvement of learning and memory mechanisms that were vulnerable to reduced oxygen tension in the brain tissues.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>условный рефлекс</kwd><kwd>интраназальная аппликация</kwd><kwd>гамма-аминомасляная кислота</kwd><kwd>гипобарическая гипоксия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>conditioned reflex</kwd><kwd>intranasal application</kwd><kwd>gamma-amino butyric acid</kwd><kwd>hypobaric hypoxia</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Целкова, И. 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