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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">scbmt</journal-id><journal-title-group><journal-title xml:lang="ru">БИОМЕДИЦИНА</journal-title><trans-title-group xml:lang="en"><trans-title>Journal Biomed</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-5982</issn><issn pub-type="epub">2713-0428</issn><publisher><publisher-name>Scientific center of biomedical technologies of Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33647/2074-5982-18-4-94-101</article-id><article-id custom-type="elpub" pub-id-type="custom">scbmt-1434</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>РЕЛЕВАНТНОЕ И АЛЬТЕРНАТИВНОЕ БИОМОДЕЛИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RELEVANT AND ALTERNATIVE BIOMODELLING</subject></subj-group></article-categories><title-group><article-title>Ультраструктурная характеристика аксодендритических и аксосоматических синапсов в орбитофронтальной коре белых лабораторных крыс на фоне малобелковой пищи после острого звукового воздействия</article-title><trans-title-group xml:lang="en"><trans-title>Ultrastructural Characteristics of Axodendritic and Axosomatic Synapses in the Orbitofrontal Cortex of White Laboratory Rats Associated with Low-Protein Food after Acute Sound Exposure</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>Султанлы</surname><given-names>М. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Sultanly</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Султанлы Мая Эльхан гызы</p><p>AZ1100, Баку, ул. Шариф-заде, 2</p></bio><bio xml:lang="en"><p>Maya E. Sultanly</p><p>AZ1100, Baku, Sharif-zade Str., 2</p></bio><email xlink:type="simple">msultanli80@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт физиологии им. акад. А. Караева Национальной академии наук Азербайджана</institution><country>Азербайджан</country></aff><aff xml:lang="en"><institution>Research Institute of Physiology named after Acad. A. Karaev of the National Academy of Sciences of Azerbaijan</institution><country>Azerbaijan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2022</year></pub-date><volume>18</volume><issue>4</issue><fpage>94</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Султанлы М.Э., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Султанлы М.Э.</copyright-holder><copyright-holder xml:lang="en">Sultanly M.E.</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://journal.scbmt.ru/jour/article/view/1434">https://journal.scbmt.ru/jour/article/view/1434</self-uri><abstract><p>Цель работы – изучить состояние аксодендритических (ADS) и аксосоматических (ASS) синапсов в I–IV слоях орбитофронтальной коры (ОФК) половозрелых белых лабораторных крыс в условиях балансированной и малобелковой пищи после острого звукового воздействия. Опыты выполнены на 64-х белых нелинейных половозрелых лабораторных крысах-самцах массой 180–230 г (8 – интактных, 56 – экспериментальных). После непрерывного звонка интенсивностью 120 дБ в течение 120 с 56 крыс разделены на 2 группы: с балансированной пищей (контрольная – 28) и малобелковой пищей (основная – 28); с двумя подгруппами, в каждой из них: стресс-устойчивые (по 12) и стресс-неустойчивые (по 16 животных). Приём воды – без ограничений. Животные из эксперимента выведены на 10-е, 20-е, 30-е и 40-е сут после звукового воздействия. Параллельно с гистологическими и иммуногистохимическими анализами образцы I–IV слоёв ОФК изучены также трансмиссионной электронной микроскопией. Электронно-микроскопические изменения строения ADS и ASS выявлены во всех слоях ОФК. Отмечены нарушения тонкой структуры как пресинаптического, так и постсинаптического полюсов. Максимальная выраженность ультраструктурных изменений присуща ADS поверхностного (I, молекулярного), наружного зернистого (II), пирамидного (III) и внутреннего зернистого (IV) слоёв ОФК. Дезорганизация ASS отмечена преимущественно в контактах, постсинаптический полюс которых сформирован телами мелких пирамидных нейронов III слоя, а также пирамидных и звёздчатых нейронов IV слоя ОФК. Во всех сроках наблюдений нарушения тонкой организации наиболее выражены у стресс-неустойчивых животных основной группы опытов, особенно на 10-е и 20-е сут после воздействия. Острое звуковое воздействие инициирует нарушения тонкой организации аксодендритических и аксосоматических синапсов в I–IV слоях ОФК белых лабораторных крыс. Очаговая деструкция части отмеченных синапсов у крыс с малобелковой пищей после острого аудиогенного стресса имеет необратимый характер.</p></abstract><trans-abstract xml:lang="en"><p>This paper investigates the state of axodendritic (ADS) and axosomatic (ASS) synapses in orbitofrontal cortex (OFC) layers I-IV of adult white laboratory rats associated with balanced and low-protein food after acute sound exposure. Experiments were performed on 64 white non-linear sexually mature laboratory male rats weighing 180–230 g (eight intact, 56 experimental). After a continuous call with an intensity of 120 db for 120 seconds, 56 rats were divided into two groups: those receiving balanced (control – 28) and low-protein food (basic – 28). Each of these two groups was divided into two subgroups: stress-resistant (12 animals in each) and stress-unstable animals (16 animals in each). Water intake was unlimited. The animals were removed from the experiment on the 10th, 20th, 30th, and 40th day after sound exposure. Along with histological and immunohistochemical analysis, the samples of OFC layers I–IV were studied by transmission electron microscopy. Electron microscopic changes in the structure of ADS and ASS were found in all OFC layers. Violations of the fine structure of both the presynaptic and postsynaptic poles were noted. The maximum severity of ultrastructural changes was observed in the ADS of the surface (I, molecular), outer granular (II), pyramidal (III), and inner granular (IV) OFC layers. ASS disorganization was noted mainly in contacts, the postsynaptic pole of which was formed by the bodies of small pyramidal neurons of layer III, as well as pyramidal and stellate neurons of layer IV of the OFC. During all periods of observation, violations of fine organization were most pronounced in stress-unstable animals of the main experimental group, especially on the 10th and 20th day after exposure. Acute sound exposure initiates disturbances in the fine organization of axodendritic and axosomatic synapses in OFC layers I–IV of white laboratory rats. Focal destruction of a part of the noted synapses in rats with a low-protein diet after acute auditory stress is irreversible.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>орбитофронтальная кора</kwd><kwd>мозг</kwd><kwd>электронная микроскопия</kwd><kwd>крыса</kwd><kwd>стресс</kwd><kwd>малобелковая пища</kwd></kwd-group><kwd-group xml:lang="en"><kwd>orbitofrontal cortex</kwd><kwd>brain</kwd><kwd>electron microscopy</kwd><kwd>rat</kwd><kwd>stress</kwd><kwd>low-protein food</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">Кузнецова Г.Д. Аудиогенные судороги у крыс разных генетических линий. Журнал ВНД. 1998;48(1):143–152.</mixed-citation><mixed-citation xml:lang="en">Kuznetsova G.D. Audiogennye sudorogi u krys raznykh geneticheskikh liniy [Audiogenic seizures in rats of different genetic lines]. Zhurnal VND [Journal of Higher Nervous Activity]. 1998;48(1):143–152. 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