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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">jsms</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Siberian Medical Sciences</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Siberian Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-1174</issn><publisher><publisher-name>Federal state budgetary educational institution of higher education "Novosibirsk state medical university" of  Ministry of Health of the Russian Federation (FSBEI HE NSMU MOH Russia)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31549/2542-1174-2022-6-1-80-92</article-id><article-id custom-type="elpub" pub-id-type="custom">jsms-795</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Тканевый и ультраструктурный анализ печени крыс препубертатного возраста при субтоксическом воздействии кадмия и свинца</article-title><trans-title-group xml:lang="en"><trans-title>Tissue and ultrastructural analysis of the liver of prepubertal rats under subtoxic exposure to cadmium and lead</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>Елясин</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Elyasin</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, доцент кафедры анатомии человека им. акад. Ю.И. Бородина </p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p> Cand. Sci. (Med.), Assistant Professor, Yu.I. Borodin Department of Human Anatomy</p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><email xlink:type="simple">elyasin@ngs.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>Залавина</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zalavina</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, профессор, заведующий кафедрой гистологии,эмбриологии и цитологии им. проф. М.Я. Субботина</p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor, Head, M.Ya. Subbotin Department of Histology, Embryology and Cytology </p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Машак</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mashak</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р мед. наук, профессор, заведующий кафедрой анатомии  человека им. акад. Ю.И. Бородина </p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p> Dr. Sci. (Med.), Professor, Head, Yu.I. Borodin Department of Human Anatomy </p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Равилова</surname><given-names>Ю. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Ravilova</surname><given-names>Yu. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. мед. наук, старший преподаватель кафедры фармакологии, клинической фармакологии и доказательной медицины </p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p> Cand. Sci. (Med.), Senior Lecturer, Department of Pharmacology, Clinical Pharmacology and Evidence-Based Medicine </p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Машак</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mashak</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р мед. наук, профессор кафедры гистологии, эмбриологии ицитологии им. проф. М.Я. Субботина </p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p> Dr. Sci. (Med.), Professor, M.Ya. Subbotin Department of Histology, Embryology and Cytology </p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Айдагулова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aidagulova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р биол. наук, профессор, заведующий лабораторией клеточной биологии и фундаментальных основ репродукции Центральной научно-исследовательской лаборатории  </p><p> 630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p> Dr. Sci. (Biol.), Professor, Head, Laboratory of Cell Biology and Fundamentals of Reproduction, Central Research Laboratory </p><p>52, Krasny prosp., Novosibirsk, 630091, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2022</year></pub-date><volume>0</volume><issue>1</issue><fpage>80</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Елясин П.А., Залавина С.В., Машак А.Н., Равилова Ю.Р., Машак С.В., Айдагулова С.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Елясин П.А., Залавина С.В., Машак А.Н., Равилова Ю.Р., Машак С.В., Айдагулова С.В.</copyright-holder><copyright-holder xml:lang="en">Elyasin P.A., Zalavina S.V., Mashak A.N., Ravilova Y.R., Mashak S.V., Aidagulova S.V.</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://jsms.elpub.ru/jour/article/view/795">https://jsms.elpub.ru/jour/article/view/795</self-uri><abstract><p>С помощью световой и электронной микроскопии изучено влияние интоксикации сульфатом кадмия (Cd) и ацетатом свинца (Pb) в течение 3 нед на архитектонику паренхимы печени и ультраструктурные особенности гепатоцитов 40 крысят-самцов Вистар препубертатного возраста с учетом модели классической печеночной дольки. Животные были разделены на 4 группы: 1-я – контроль; 2-я – раствор сульфата кадмия в дозе 0.5 мг/кг; 3-я – раствор ацетата свинца 10 мг/кг; 4-я – сочетание указанных растворов. По данным стереологического анализа полутонких срезов статистически значимые показатели перипортальных зон отражают увеличение объема гепатоцитов при воздействии Cd (2-я и 4-я группы). Во всех группах, за исключением 3-й (Pb), выявлено увеличение паренхиматозного компартмента в порто-венулярном градиенте, свидетельствующее о формировании «баллонной» дистрофии. Во всех опытных группах для перипортальной зоны печеночной дольки характерной особенностью ультраструктуры гепатоцитов было статистически значимое снижение объемной плотности эндоплазматической сети; для центролобулярной зоны – митохондрий; для перивенулярной зоны – митохондрий и ядер гепатоцитов. Формирование аутофагосом с признаками утилизации преимущественно митохондрий обращало на себя внимание в группах с воздействием Pb. Патологические изменения компенсированы усилением транссинусоидального обмена и наличием комплексов органелл биосинтеза.</p></abstract><trans-abstract xml:lang="en"><p>Using light and electron microscopy, the effect of intoxication with cadmium sulfate (Cd) and lead acetate (Pb) for 3 weeks on the architectonics of the liver parenchyma and ultrastructural features of hepatocytes of 40 prepubertal male Wistar rats was studied, taking into account the model of the classical hepatic lobule. Animals were divided into 4 groups: 1st – control; 2nd – cadmium sulfate solution at a dose of 0.5 mg/kg; 3rd – lead acetate solution 10 mg/kg; 4th – a combination of these solutions. According to stereological analysis of semi-thin sections, statistically significant indicators of periportal zones reflect an increase in the volume of hepatocytes when exposed to Cd (2nd and 4th groups). In all groups, with the exception of the 3rd one (Pb), an increase in the parenchymal compartment in the porto-central gradient was revealed, indicating the formation of hepatocellular ballooning. In all experimental groups, for the periportal zone of the hepatic lobule, a characteristic feature of the ultrastructure of hepatocytes was a statistically significant decrease in the volumetric density of the endoplasmic reticulum; for the centrilobular zone – of mitochondria; for the perivenular zone – mitochondria and nuclei of hepatocytes. The formation of autophagosomes with signs of predominantly mitochondrial utilization attracted attention in groups exposed to Pb. Pathological changes are compensated by increased transsinusoidal metabolism and complexes of biosynthesis organelles.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>печень</kwd><kwd>тяжелые металлы</kwd><kwd>крысы препубертатного возраста</kwd><kwd>тканевый анализ</kwd><kwd>ультраструктура</kwd><kwd>морфометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>liver</kwd><kwd>heavy metals</kwd><kwd>prepubertal rats</kwd><kwd>tissue analysis</kwd><kwd>ultrastructure</kwd><kwd>morphometry</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">Mitra P., Sharma S., Purohit P., Sherma P. Clinical and molecular aspects of lead toxicity: An update // Crit. Rev. Clin. Lab. Sci. 2017;54(7–8):506–528. doi: 10.1080/10408363.2017.1408562.</mixed-citation><mixed-citation xml:lang="en">Mitra P., Sharma S., Purohit P., Sherma P. Clinical and molecular aspects of lead toxicity: An update. 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