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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">vestib</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия биологических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Biological Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-8940</issn><issn pub-type="epub">2524-230X</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">vestib-292</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>Статьи</subject></subj-group></article-categories><title-group><article-title>РАДИАЦИОННОЕ ПОРАЖЕНИЕ СПЕРМАТОГЕННЫХ КЛЕТОК И ЭПИДИДИМАЛЬНЫХ СПЕРМАТОЗОИДОВ КРЫС ЛИНИИ ВИСТАР ПОСЛЕ ВНЕШНЕГО ОБЛУЧЕНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>RADIATION INJURY SPERMATOGENIC CELLS AND SPERMATOZOA RATS WISTAR AFTER EXTERNAL 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>Верещако</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Vereschako</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, вед. науч. сотрудник</p></bio><bio xml:lang="en"><p>Ph. D. (Biol.), Leading researcher</p></bio><email xlink:type="simple">natalya-chueshova@tut.by</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>Чуешова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chueshova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотрудник</p></bio><bio xml:lang="en"><p>Researcher</p></bio><email xlink:type="simple">natalya-chueshova@tut.by</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>Цуканова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsukanova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник</p></bio><bio xml:lang="en"><p>Junior researcher</p></bio><email xlink:type="simple">elenatsukanova14@gmail.com</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>Бакшаева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakshayeva</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотрудник</p></bio><bio xml:lang="en"><p>Researcher</p></bio><email xlink:type="simple">m.bakshaeva@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт радиобиологии НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Radiobiology of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>04</day><month>08</month><year>2017</year></pub-date><volume>0</volume><issue>2</issue><fpage>40</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Верещако Г.Г., Чуешова Н.В., Цуканова Е.В., Бакшаева М.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Верещако Г.Г., Чуешова Н.В., Цуканова Е.В., Бакшаева М.А.</copyright-holder><copyright-holder xml:lang="en">Vereschako G.G., Chueshova N.V., Tsukanova E.V., Bakshayeva M.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://vestibio.belnauka.by/jour/article/view/292">https://vestibio.belnauka.by/jour/article/view/292</self-uri><abstract><p>Изучено влияние внешнего ионизирующего облучения в дозе 1,0 Гр на репродуктивную систему крыс-самцов. Установлено, что в начальном периоде после облучения наблюдается ускорение процесса сперматогенеза, что подтверждается повышением количества сперматогоний, прелептотенных сперматоцитов, сперматоцитов первого порядка и округлых сперматид. Одновременно отмечаются снижение числа эпидидимальных сперматозоидов и их жизнеспособность, значительная гибель зрелых половых клеток путем апоптоза и некроза. Активность глицеральдегид-3- фосфатдегидрогеназы (ГФДГ) и акрозина в эпидидимальных сперматозоидах на 3-и сутки после облучения уменьшается, в то же время в отдаленном периоде активность ГФДГ в этом периоде не отличается от контроля при повышенном уровне акрозина (почти в 2,8 раза). Ухудшение количественных и качественных характеристик эпидидимальных сперматозоидов у облученных животных, по-видимому, приведет к снижению фертильности экспериментальных животных. </p></abstract><trans-abstract xml:lang="en"><p>It was studied the effect of external radiation (1.0 Gy) on the reproductive system of male rats. It is established that in the initial period after irradiation, acceleration of the process of spermatogenesis is observed, which is confirmed by an increase in the number of spermatogonia, preleptotene spermatocytes, and spermatocytes of the first order and round spermatids. Simultaneously, a decrease in the number of epididymal spermatozoa and their viability, a significant death of mature sex cells by apoptosis and necrosis. The activity of GDD and acrosin in epididymal spermatozoa decreases on the 3rd day after irradiation, while in the long-term period the activity of GFDG does not differ from control at an increased level of acrosin (almost 2.8 times). The deterioration of quantitative and qualitative characteristics of epididymal spermatozoa in irradiated animals, apparently, will lead to a decrease in the fertility of experimental animals.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>внешнее облучение в дозе 1</kwd><kwd>0 Гр</kwd><kwd>репродуктивная система крыс-самцов</kwd><kwd>сперматогенез</kwd><kwd>сперматозоиды</kwd><kwd>жизнеспособность</kwd><kwd>индекс фрагментации ДНК (индекс DFI)</kwd><kwd>апоптоз</kwd><kwd>глицеральдегид-3-фосфатдегидрогеназа</kwd><kwd>акрозин</kwd><kwd>фруктоза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>external exposure at dose 1.0 Gy</kwd><kwd>male rats reproductive systems</kwd><kwd>spermatogenesis</kwd><kwd>spermatozoa</kwd><kwd>viability</kwd><kwd>DNA fragmentation index (index DFI)</kwd><kwd>apoptosis</kwd><kwd>glyceraldehyde-3-phosphate dehydrogenase (GAPDH)</kwd><kwd>acrosyn</kwd><kwd>fructose</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">Медицинские лабораторные технологии: руководство по клин. лаб. диагностике: в 2 т. / В. 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