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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2014-5-49-54</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-220</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>УЛЬТРАСТРУКТУРА СИНАПСОВ В ГИППОКАМПЕ КРЫС В ПРОЦЕССЕ СТАРЕНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>ULTRASTRUCTURE OF SYNAPSES IN THE HIPPOCAMPUS OF RATS IN AGING</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>Максимова</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimova</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максимова Ксения Юрьевна - аспирант кафедры гистологии, эмбриологии и цитологии</p></bio><bio xml:lang="en"/><email xlink:type="simple">kseniya.maksimova.88@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Логвинов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Logvinov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Логвинов Сергей Валентинович - доктор медицинских наук, профессор, зав. кафедрой гистологии, эмбриологии и цитологии</p></bio><bio xml:lang="en"/><email xlink:type="simple">kseniya.maksimova.88@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стефанова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stefanova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат биологических наук, научный сотрудник</p></bio><email xlink:type="simple">kseniya.maksimova.88@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный медицинский университет, Томск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University, Tomsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт цитологии и генетики СО РАН, Новосибирск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Cytology and Genetics SB RAS, Novosibirsk</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2014</year></pub-date><volume>13</volume><issue>5</issue><fpage>49</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Максимова К.Ю., Логвинов С.В., Стефанова Н.А., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Максимова К.Ю., Логвинов С.В., Стефанова Н.А.</copyright-holder><copyright-holder xml:lang="en">Maksimova K.Y., Logvinov S.V., Stefanova N.A.</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://bulletin.ssmu.ru/jour/article/view/220">https://bulletin.ssmu.ru/jour/article/view/220</self-uri><abstract><p>Цель исследования – изучить возрастные изменения ультраструктуры синапсов СА1-региона гиппокампа крыс линии Wistar и преждевременно стареющих крыс линии OXYS.</p><sec><title>Материал и методы</title><p>Материал и методы. Для оценки изменений синаптоархитектоники фотографировали по 15 случайно выбранных полей зрения пирамидного слоя СА1-региона гиппокампа с пяти срезов при стандартном увеличении 10 000. Определяли количество межнейрональных контактов (площадь поля зрения – 50 мкм2) и высчитывали численную плотность синапсов на 100 мкм2. Подсчитывали количество определенных контактов с асимметричной и симметричной организацией системы субсинаптических единиц, перфорированные, гипертрофированные контакты. Подразделяли синапсы по протяженности активной зоны контакта.</p></sec><sec><title>Результаты</title><p>Результаты. Проведенное исследование показало, что существенные различия в ультраструктурной организации синапсов между линиями наблюдаются уже в 4-месячном возрасте. Численная плотность синапсов в этой возрастной группе у крыс OXYS была значимо выше, чем у Wistar. Ультраструктура синапсов СА1-региона гиппокампа крыс в возрасте 18 мес в большей степени была подвержена патологическим изменениям пресинаптических отростков и мембраны у преждевременно стареющих крыс в отличии от линии контроля. Показатель численной плотности контактов  18-месячных крыс OXYS был значимо ниже, чем у линии Wistar. Выявленные межлинейные различия по степени изменений синапсов могут свидетельствовать в пользу разной чувствительности к окислительному стрессу крыс исследуемых линий.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to examine age-related changes in the ultrastructure of synapses in the CA1 region of the hippocampus of Wistar rats and premature aging OXYS rats.</p><p>To assess changes of the sinaptoarhitectonics photographed on 15 randomly chosen fields of view of the pyramidal layer of the CA1 region of the hippocampus with five slices at a standard magnification of 10000. It was determined the amount of mineral contacts (size of the field of view is 50 μm2) and calculated numerical density of synapses per 100 μm2. The number of contacts with asymmetric and symmetric organization sistemasubsidiaries units, perforated, hypertrophic contacts are counted.</p><p>The study showed that there are significant differences in the ultrastructural organization of the synapses between the lines, already 4 months old. The numerical density of snaps in this age group OXYS rats was significantly higher than that of Wistar. Ultrastructure of synapses in the CA1 region of the hippocampus of rats at the age of 18 months more bulupodadan pathological essentiaompetencies processes and membrane prematurely senescent rats in contrast to the control line. The numerical indicator of protect contents 18-month-old rats OXYS was significantly lower than in Wistar.</p><p>Identified interstrain differences in the degree of changes of synapses can testify in favor of a different sensitivity to oxidative stress in rats investigated lines.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синапс</kwd><kwd>возрастные изменения</kwd><kwd>гиппокамп</kwd><kwd>преждевременно стареющие крысы OXYS</kwd></kwd-group><kwd-group xml:lang="en"><kwd>synapse</kwd><kwd>age-related changes</kwd><kwd>hippocampus</kwd><kwd>senescence-accelerated OXYS rats</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">Никольский Е.Е. Молекулярные механизмы передачи информации через синапсы химического типа // Казанский мед. журн. 2010. Т. 91, № 4. С. 433–437.</mixed-citation><mixed-citation xml:lang="en">Nikolsky Ye.Ye. 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