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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-746</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>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Сезонная изменчивость архитектоники гиппокампа рыжей полевки (Clethrionomys glareolus, Rodentia)</article-title><trans-title-group xml:lang="en"><trans-title>Seasonal variability of the hippocampus architectonics in bank vole (Clethrionomys glareolus, Rodentia)</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>Яскин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yaskin</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яскин Владимир Александрович — кандидат биологических наук, старший научный сотрудник кафедры зоологии позвоночных биологического факультета МГУ.</p><p>119234, Москва, Ленинские горы, д. 1, стр. 12, тел. 8-495-939-45-78</p></bio><bio xml:lang="en"><p>Lomonosov Moscow State University</p></bio><email xlink:type="simple">yaskin_v@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Vertebrate Zoology, School of Biology.&#13;
Leninskiye gory 1—12, Moscow, 119134</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>04</day><month>07</month><year>2019</year></pub-date><volume>74</volume><issue>2</issue><elocation-id>129–134</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Яскин В.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Яскин В.А.</copyright-holder><copyright-holder xml:lang="en">Yaskin V.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://vestnik-bio-msu.elpub.ru/jour/article/view/746">https://vestnik-bio-msu.elpub.ru/jour/article/view/746</self-uri><abstract><p>Прослежена сезонно-возрастная изменчивость архитектоники гиппокампа рыжей полевки (Clethrionomys glareolus) из природной популяции (Московская область). Сравнивали животных осенней генерации на трех этапах жизненного цикла: осенью (возраст 1-3 мес.), в период зимнего уменьшения массы мозга (5-7 мес.) и после весеннего «скачка роста» (9-11 мес.) в летний период. Зимняя выборка отличалась статистически достоверно меньшей (p&lt;0,05) площадью среза как зубчатой извилины, так и поля CA3 гиппокампа. Близким по величине зимним уменьшением площади профильного поля характеризовались все изученные отделы гиппокампального комплекса: молекулярный и гранулярный слои зубчатой извилины, а также слои пирамидных клеток и волокон поля СА3 гиппокампа (9,4-13,3%). В весенний период рост гиппокампального комплекса возобновлялся. У перезимовавших полевок в летний период размер отделов гиппокампа был больше, чем у полевок в зимней выборке на 5,4-27,3%. Полученные результаты свидетельствуют о значительной морфологической пластичности основных структурных компонентов гиппокампа в связи с воздействием сезонных факторов у незимоспящих грызунов.</p></abstract><trans-abstract xml:lang="en"><p>The seasonal and age variability of the hippocampus of the bank vole (Clethrionomys glareolus) from the natural population (Moscow region) was traced. The animals of the autumn generation were compared at three stages of the life cycle: in the fall (1-3 months old), during the winter decrease in brain mass (5-7 months), after the spring «growth spurt» (9-11 months). The winter sample differed statistically significantly smaller (p&lt;0,05) section area of both the dentate gyrus and the CA3 field of the hippocampus. All the studied divisions of the hippocampal complex - molecular and granular layers of the dentate gyrus, layers of pyramidal cells and fibers of the CA3 field of the hippocampus were characterized by a similar winter decrease (9,4-13,3%). In spring, there was a regrowth in all parts of the hippocampal complex. In the summertime in overwintered voles, the size of the hippocampal divisions was larger than that in the winter sample by 5,4-27,3%. The results indicate a significant morphological plasticity of the main structural components of the hippocampus due to the influence of seasonal factors in non-winter-sleeping rodents.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гиппокамп</kwd><kwd>зубчатая извилина</kwd><kwd>архитектоника</kwd><kwd>морфологическая пластичность</kwd><kwd>сезонная изменчивость</kwd><kwd>рыжая полевка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hippocampus</kwd><kwd>dentate gyrus</kwd><kwd>architectonics</kwd><kwd>morphological plasticity</kwd><kwd>seasonal variability</kwd><kwd>bank vole</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы госзадания «Изучение адаптаций позвоночных животных методами сравнительной и функциональной морфологии», ч. 2, номер ЦИТИС: АААА-А16-116021660071-1</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Dehnel A. 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