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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2018-17-2-78-83</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-170</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 (ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (EXPERIMENTAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Структурно-функциональная характеристика эндотелиальных клеток сосудов сердца новорожденной крысы (иммуногистохимическое исследование)</article-title><trans-title-group xml:lang="en"><trans-title>Structural and functional characteristics of endothelial cells of vessels of the heart of newborn rats (immunohistochemical study)</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>Чумасов</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Chumasov</surname><given-names>E. I.</given-names></name></name-alternatives><email xlink:type="simple">iemmorphol@yandex.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>Петрова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>E. S.</given-names></name></name-alternatives><email xlink:type="simple">iemmorphol@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коржевский</surname><given-names>Д. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Korzhevskii</surname><given-names>D. E.</given-names></name></name-alternatives><email xlink:type="simple">iemmorphol@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Институт экспериментальной медицины»; Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургская государственная академия ветеринарной медицины»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Institution «Institute of Experimental Medicine»; Federal State Budgetary Educational Institution of Higher Education «St. Petersburg State Academy of Veterinary Medicine»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Институт экспериментальной медицины»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Institution «Institute of Experimental Medicine»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2018</year></pub-date><volume>17</volume><issue>2</issue><fpage>78</fpage><lpage>83</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чумасов Е.И., Петрова Е.С., Коржевский Д.Э., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Чумасов Е.И., Петрова Е.С., Коржевский Д.Э.</copyright-holder><copyright-holder xml:lang="en">Chumasov E.I., Petrova E.S., Korzhevskii D.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://www.microcirc.ru/jour/article/view/170">https://www.microcirc.ru/jour/article/view/170</self-uri><abstract><p>Цель работы - с помощью гистологических методов и иммуногистохимического маркирования фактора Виллебранда (фВ) изучить состояние эндотелиальных клеток (ЭК) кровеносного русла сердца новорожденных крыс. Иммуногистохимическое исследование проводили на крысах Вистар 1-го дня постнатального развития (n=6). Установлено, что ЭК формирующихся сосудов сердца новорожденной крысы находятся на разных стадиях морфологической и функциональной дифференцировки в зависимости от топографии. Наиболее выраженной фВ-иммунореактивностью в этот срок обладают ЭК интимы восходящего ствола аорты до клапанов, а также коронарных артерий и их ветвей, расположенных в эпикарде и миокарде в области верхней трети желудочков. В то же время в ЭК сосудов микроциркуляторного русла миокарда, а также эндотелия эндокарда ушек и желудочков реакция на фВ в этот срок еще слабо выражена или отсутствует. На светооптическом уровне продемонстрированы морфологические особенности ЭК, варибельность и размеры фВ+-гранул, свидетельствующие о различной зрелости эндотелия сосудов сердца новорожденных животных.</p></abstract><trans-abstract xml:lang="en"><p>The study is aimed to investigate the pattern of cytodifferentiation of developing endothelial cells (EC) of microcirculatory bed of the heart of newborn rats using light microscopy and immunohistochemical labeling of von Willebrand factor (vWF). Immunohistochemical study was carried out on Wistar rats on the postnatal day 1 (n=6). For the first time, EC of the developing vessels of the heart of newborn rats were found to be on different stages of cytodifferentiation. Most pronounced structural and functional maturity at this developmental stage was typical for EC of intima of aorta, coronary vessels, middle and small arteries and arterioles of the myocardium in the upper third of the ventricles. Endothelium of these vessels demonstrates strong vWF-immunoreactivity, while in the developing capillaries of the sinusoidal type of the subepicardial region and ventricular endocardium, the vWF-immunoreaction at this time period is still weak or absent. Morphological pattern and variability of sizes of vWF-immunoreactive granules of endothelium has been established. Signs of secretion in the EC were revealed. Synthesis, accumulation, and exocytosis of vWF are suggested to be associated with the degree of cytodifferentiation of EC.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эндотелиальные клетки</kwd><kwd>фактор Виллебранда</kwd><kwd>сердце</kwd><kwd>кровеносные сосуды</kwd><kwd>иммуногистохимия</kwd><kwd>новорожденные крысы</kwd><kwd>endothelial cells</kwd><kwd>von Willebrand factor</kwd><kwd>heart</kwd><kwd>blood vessels</kwd><kwd>immunohistochemistry</kwd><kwd>newborn 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">Афанасьев Ю. И., Горячкина В. Г. Сердечно-сосудистая система: рук-во по гистологии. Т. 2 / под ред. Р. К. Данилова. - 2-е изд. - СПб.: СпецЛит, 2011. - С. 241-296. [Afanasyev YuI, Goryachkina VG. Cardiovascular system. R.K. Danilov, editor. Textbook on histology. 2nd ed. St. Petersburg: SpecLit; 2011. V. 2: 241-296. 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