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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">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15372/SSMJ20200607</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-520</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>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOMEDICINE</subject></subj-group></article-categories><title-group><article-title>Токсическое действие медно-цинковой колчеданной руды на эритропоэз в условиях хронического эксперимента</article-title><trans-title-group xml:lang="en"><trans-title>Toxic effect of copper-zinc pyrite ore on erythropoiesis in chronic experiment</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8413-5484</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиякаева</surname><given-names>К. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Ziyakaeva</surname><given-names>K. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клара Рашитовна Зиякаева</p><p>450008, Уфа, ул. Ленина, 3</p></bio><bio xml:lang="en"><p>Klara R. Ziyakaeva</p><p>450008, Ufa, Lenin str., 3</p></bio><email xlink:type="simple">klazia@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>Каюмова</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Kayumova</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алия Фаритовна Каюмова - доктор медицинских наук, профессор.</p><p>450008, Уфа, ул. Ленина, 3</p></bio><bio xml:lang="en"><p>Aliya F. Kayumova - doctor of medical sciences, professor.</p><p>450008, Ufa, Lenin str., 3</p></bio><email xlink:type="simple">annikachka@live.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Башкирский государственный медицинский университет Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State Medical University of Minzdrav of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2020</year></pub-date><volume>40</volume><issue>6</issue><fpage>70</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зиякаева К.Р., Каюмова А.Ф., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Зиякаева К.Р., Каюмова А.Ф.</copyright-holder><copyright-holder xml:lang="en">Ziyakaeva K.R., Kayumova A.F.</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://sibmed.elpub.ru/jour/article/view/520">https://sibmed.elpub.ru/jour/article/view/520</self-uri><abstract><p>Природные руды содержат большое количество вредных для здоровья человека компонентов. У работников горно-обогатительных предприятий, длительно контактирующих с этими природными элементами, нередко диагностируется анемия, патогенез которой изучен недостаточно. Цель исследования - детализировать механизмы нарушений эритрона при длительной интоксикации крыс природным комплексом соединений тяжелых металлов, входящих в состав медно-цинковой колчеданной руды.</p><sec><title>Материал и методы</title><p>Материал и методы. Работа выполнена на 60 белых нелинейных крысах-самцах возраста 3-4 месяца, весом 220,52 ± 15,51 г. Животным опытной группы (n = 40) ежедневно за час до стандартного кормления перорально вводили водную суспензию порошка медно-цинковой колчеданной руды в хлебном мякише в течение 75-120 дней. Забор крови и костного мозга у крыс опытной группы осуществляли на 75-е, 90-е, 105-е и 120-е сутки, у крыс контрольной группы (n = 20) - на 75-е и 105-е сутки эксперимента. Центральное звено эритрона оценивали по количеству и составу эритробластических островков (ЭО) костного мозга, количеству свободных макрофагов, коэффициентам вовлечения в эритропоэз колониеобразующих единиц эритроцитарных (КОЕ-Э) и макрофагов.</p><p>Результаты и их обсуждение. В периферической крови крыс опытной группы количество эритроцитов и содержание гемоглобина было достоверно меньше контрольных значений на 90-е и 120-е сутки, число ретикулоцитов - больше на 75-е, 105-е и 120-е сутки. В костном мозге животных опытной группы встречались лишь единичные ЭО 1-го и 2-го классов зрелости. На протяжении всего эксперимента содержание свободных макрофагов и ЭО с ретикулоцитарной короной в их костном мозге было повышенным, а концентрация связанного железа и сывороточного эритропоэтина в крови - напротив, пониженной. Показатель интенсивности вовлечения КОЕ-Э в эритропоэз был меньше контрольных значений в 2 раза на 105-е и 120-е сутки.</p></sec><sec><title>Заключение</title><p>Заключение. При длительном пероральном введении медно-цинковой колчеданной руды в костном мозге крыс угнетается процесс образования ЭО de novo путем дестабилизации контактов свободных костно-мозговых макрофагов с молодыми эритроидными клетками. В сыворотке крови снижается содержание эритропоэтина и связанного железа, что в совокупности с изменением характера эритропоэза приводит к уменьшению количества эритроцитов и гемоглобина в периферической крови.</p></sec></abstract><trans-abstract xml:lang="en"><p>Natural ores contain a large number of harmful components for human health. Workers of mining and processing enterprises, who have long-term contact with these natural elements, are often diagnosed with anemia, that pathogenesis is not sufficiently studied. Aim of the study was to detail the mechanisms of rats’ erythron disorders in the long-termintoxication by natural complex of heavy metal compounds of copper-zinc pyrite ore.</p><sec><title>Material and methods</title><p>Material and methods. The work was performed on 60 white non-linear male rats aged 3-4 months weighing 220,52 ± 15,51 g. The experimental group of animals (n = 40) were injected orally with water suspension of copper-zinc powder in a bread crumb an hour before standard feeding during 75-120 days. The blood and bone marrow of experimental groups of rats were carried out on the 75-th, 90-th, 105-th and 120-th days of the experiment. The blood and bone marrow of rats’ control groups were studied on the 75-th and 105-th day. The central part of erythron was assessed by the number and composition of the erythroblastic islets (EI) of bone marrow, the number of free macrophages, the coefficients of involvement of colonyforming units of red blood cells (CFU-E) and macrophages into erythropoiesis.</p></sec><sec><title>Results</title><p>Results. In the peripheral blood of experimental rats the number of red blood cells and the content of hemoglobin were reliably less than the control values on the 90-th and 120-th day, the number of reticulocytes was exceeded the control group on the 75-th, 105-th and 120-th day. In the bone marrow of experimental rats there were only a single EI1 and EI2 classes of maturity. Throughout the experiment, the content of free macrophages and EI with reticulocytes «crown» in the bone marrow of rats was elevated, and the concentration of iron and erythropoietin in the blood, on the contrary, was reduced. The intensity of CFU-E involvement in the erythropoiesis was less than the control level by 2 times on 105th and 120th days of the experiment.</p></sec><sec><title>Conclusion</title><p>Conclusion. With long-term introduction of copper-zinc pyrite ore in the bone marrow of rats the process of formation of EI de novo is suppressed by destabilizing the contact of free bone macrophages with young red blood cells. There is reduces in the content of serum erythropoietin and bound iron, that combines with the change of erythropoiesis nature, leads to decreasing of the number of mature red blood cells and content of hemoglobin in the peripheral blood.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>эритропоэз</kwd><kwd>эритробластический островок</kwd><kwd>эритроциты</kwd><kwd>тяжелые металлы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>erythropoiesis</kwd><kwd>erythroblastic islet</kwd><kwd>red blood cells</kwd><kwd>heavy metals</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">Островская С.С., Шаторная В.Ф., Бельская Ю.А. 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