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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">medlit</journal-id><journal-title-group><journal-title xml:lang="ru">Гигиена и санитария</journal-title><trans-title-group xml:lang="en"><trans-title>Hygiene and Sanitation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-9900</issn><issn pub-type="epub">2412-0650</issn><publisher><publisher-name>Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47470/0016-9900-2023-102-4-397-401</article-id><article-id custom-type="edn" pub-id-type="custom">hwckht</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-3089</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>ПРОФИЛАКТИЧЕСКАЯ ТОКСИКОЛОГИЯ И ГИГИЕНИЧЕСКОЕ НОРМИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PREVENTIVE TOXICOLOGY AND HYGIENIC STANDARTIZATION</subject></subj-group></article-categories><title-group><article-title>Экспериментальное изучение морфологических изменений сердца и сосудов в динамике хронической фтористой интоксикации</article-title><trans-title-group xml:lang="en"><trans-title>Experimental study of morphological changes in the heart and blood vessels in the course of chronic fluoride intoxication</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3692-2616</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бугаева</surname><given-names>Мария Сергеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Bugaeva</surname><given-names>Maria S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. биол. наук, ст. науч. сотр. лаб. молекулярно-генетических и экспериментальных исследований ФГБНУ «Научно-исследовательский институт комплексных проблем гигиены и профессиональных заболеваний», 654041, Новокузнецк.</p><p>e-mail: bugms14@mail.ru</p></bio><bio xml:lang="en"><p>MD, PhD, senior researcher of the molecular-genetic and experimental study laboratory, Research Institute for Complex Problems of Hygiene and Occupational Diseases, Novokuznetsk, 654041, Russian Federation.</p><p>e-mail: bugms14@mail.ru</p></bio><email xlink:type="simple">bugms14@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5821-3100</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бондарев</surname><given-names>Олег И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bondarev</surname><given-names>Oleg I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7008-1035</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ядыкина</surname><given-names>Татьяна К.</given-names></name><name name-style="western" xml:lang="en"><surname>Yadykina</surname><given-names>Tatyana K.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4797-7842</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жукова</surname><given-names>Анна Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukova</surname><given-names>Anna G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1127-6980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>Надежда Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailova</surname><given-names>Nadezhda N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт комплексных проблем гигиены и профессиональных заболеваний»; Новокузнецкий государственный институт усовершенствования врачей – филиал ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute for Complex Problems of Hygiene and Occupational Diseases; Novokuznetsk State Institute for Further Training of Physicians — Branch Campus of the “Russian Medical Academy of Continuous Professional Education” of the Ministry of Healthcare of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт комплексных проблем гигиены и профессиональных заболеваний»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute for Complex Problems of Hygiene and Occupational Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>29</day><month>05</month><year>2023</year></pub-date><volume>102</volume><issue>4</issue><fpage>397</fpage><lpage>401</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бугаева М.С., Бондарев О.И., Ядыкина Т.К., Жукова А.Г., Михайлова Н.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Бугаева М.С., Бондарев О.И., Ядыкина Т.К., Жукова А.Г., Михайлова Н.Н.</copyright-holder><copyright-holder xml:lang="en">Bugaeva M.S., Bondarev O.I., Yadykina T.K., Zhukova A.G., Mikhailova N.N.</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.rjhas.ru/jour/article/view/3089">https://www.rjhas.ru/jour/article/view/3089</self-uri><abstract><sec><title>Введение</title><p>Введение. Клиническими исследованиями подтверждено развитие комплекса неспецифических изменений внутренних органов при хронической фтористой интоксикации. Накопление фтора в организме инициирует свободнорадикальное окисление, способствует развитию патологических процессов в сердце на фоне дисбаланса про-, антиоксидантов и эндотелиальной дисфункции сосудов. Патологическая активация клеток интимы приводит к несбалансированной продукции повреждающих факторов, изменениям в системе гемостаза, влечёт за собой морфофункциональные нарушения органов.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Эксперименты проведены на 120 белых крысах-самцах. Осуществлено морфологическое исследование сердца и сосудов на 1-й, 3-й, 6-й, 9-й и 12-й неделях хронической фтористой интоксикации.</p></sec><sec><title>Результаты</title><p>Результаты. Для первой — третьей недель эксперимента характерно сохранение морфоструктуры сердечной мышцы на фоне показанной ранее компенсаторной активации компонентов редокс-сигнальной системы, обеспечивающей снижение интенсивности свободнорадикальных процессов. С увеличением продолжительности воздействия фторида натрия (6–9 нед) наблюдается нарастание несостоятельности данных механизмов, что проявляется развитием дегенеративных изменений в миокарде, прогрессирующих до 12-й недели эксперимента. Описанные изменения коррелируют с развитием эндотелиоза, дегенеративных и фибропластических процессов, расстройств кровообращения в сосудах сердца и других органов.</p></sec><sec><title>Ограничения исследования</title><p>Ограничения исследования. Результаты гистологического исследования носят описательный характер.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные результаты имеют практическое значение для разработки эффективных способов своевременной органопротекторной профилактики и коррекции патоморфологических нарушений в зависимости от органоспецифических особенностей и длительности фтористой интоксикации.</p><p>Соблюдение этических стандартов. Экспериментальные исследования осуществлены в период 2012–2019 гг. Содержание, кормление и выведение животных из эксперимента проводили в соответствии с требованиями приказа Минздравсоцразвития России «Об утверждении правил лабораторной практики» (№ 708н от 23.08.2010 г.), приказа Минздрава РФ «Об утверждении Правил надлежащей лабораторной практики» (№ 199н от 01.04.2016 г.), а также Руководства по содержанию и использованию лабораторных животных (Guide for the Care and Use of Laboratory Animals) 1996 г. На проведение исследований были получены разрешения биоэтического комитета ФГБНУ «Научно-исследовательский институт комплексных проблем гигиены и профессиональных заболеваний» (протокол № 1 от 19.01.2012 г., протокол № 3 от 26.11.2018 г.).</p></sec><sec><title>Участие авторов</title><p>Участие авторов: Бугаева М.С. — концепция и дизайн исследования, сбор и обработка материала, написание текста; Бондарев О.И. — сбор и обработка материала; Ядыкина Т.К. — сбор и обработка материала, редактирование; Жукова А.Г. — сбор и обработка материала, статистическая обработка, редактирование; Михайлова Н.Н. — концепция исследования, редактирование. Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы декларируют отсутствие явных и потенциальных конфликтов интересов в связи с публикацией данной статьи.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело финансовой поддержки.</p></sec><sec><title>Поступила</title><p>Поступила: 25.01.2023 / Принята к печати: 24.03.2023 / Опубликована: 29.05.2023</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Clinical studies have shown the development of a complex of non-specific changes in internal organs due to chronic fluoride intoxication. The accumulation of fluorine in the body initiates free radical oxidation, promotes the development of pathological processes in the heart against the background of an imbalance between pro- and antioxidants, and vascular endothelial dysfunction. Pathological activation of intima cells leads to unbalanced production of damaging factors, changes in the hemostasis system, and entails morphological and functional disorders of organs.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The experiments were carried out on one hundred twenty white male rats. A morphological study of the heart, blood vessels was performed out at 1, 3, 6, 9 and 12 weeks of chronic fluoride intoxication.</p></sec><sec><title>Results</title><p>Results. The 1st-3rd weeks of the experiment are characterized by the preservation of the morphological structure of the cardiac muscle against the background of the previously shown a compensatory activation of the components of the redox-signalling system, which provided a decrease in the intensity of free radical processes. With an increase in the duration of exposure to sodium fluoride (6–9 weeks) these mechanisms failure was noted, which was manifested by the development of degenerative changes in the myocardium, progressing up to the 12th week of the experiment. The described changes correlated with the development of endotheliosis, degenerative and fibroplastic processes, circulatory disorders in the vessels of the heart and other organs.</p></sec><sec><title>Limitations</title><p>Limitations. Histological findings are descriptive.</p></sec><sec><title>Conclusion</title><p>Conclusion. The results obtained are of practical importance for the elaboration of effective methods for timely organ-protective prevention and correction of pathomorphological disorders, depending on the organ-specific features and duration of fluoride intoxication.</p><p>Compliance with ethical standards. Experimental studies were carried out in the period 2012-2019. The keeping, feeding and withdrawal animals from the experiment were carried out in accordance with the requirements of the Order of the Ministry of Health and Social Development of Russia of the Russian Federation “On approval of the Rules of Laboratory Practice” (No. 708n of 23.08.2010), of the Order of the Ministry of Health of the Russian Federation “On approval of the Rules of Good Laboratory Practice” (No. 199n of 01.04.2016), as well as the Guide for the Care and Use of Laboratory Animals (1996). Permission to conduct studies was obtained from the Bioethical Committee of the Research Institute for Complex Problems of Hygiene and Occupational Diseases (protocol No. 1 of January 19, 2012, protocol No. 3 of November 26, 2018).</p></sec><sec><title>Contribution</title><p>Contribution: Bugaeva M.S. — concept and design of the study, collection and processing of material, writing a text; Bondarev O.I. — collection and processing of material; Yadykina T.K. — collection and processing of material, editing; Zhukova A.G. — collection and processing of material, statistical processing, editing; Mikhailova N.N. — concept of the study, editing. All authors are responsible for the integrity of all parts of the manuscript and approval of the manuscript final version.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Acknowledgement</title><p>Acknowledgement. The study had no sponsorship.</p></sec><sec><title>Received</title><p>Received: January 25, 2023 / Accepted: March 24, 2023 / Published: May 29, 2023</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фторид натрия</kwd><kwd>сердце</kwd><kwd>сосуды</kwd><kwd>редокс-сигнальная система</kwd><kwd>эндотелиоз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sodium fluoride</kwd><kwd>heart</kwd><kwd>vessels</kwd><kwd>redox signaling system</kwd><kwd>endotheliosis</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">Рослая H.A., Лихачева Е.И., Оранский И.Е., Одинокая В.А., Плот-ко Э.Г., Жовтяк Е.П. и др. Клинико-патогенетические особенности хронической профессиональной интоксикации соединениями фтора в современных условиях. 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