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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Genetics</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-6758</issn><issn publication-format="electronic">3034-5103</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">667194</article-id><article-id pub-id-type="doi">10.31857/S0016675824090027</article-id><article-id pub-id-type="edn">afavql</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ОБЩАЯ ГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Nematode <italic>Caenorhabditis elegans</italic> as an object for testing the genotoxicity of chemical compounds</article-title><trans-title-group xml:lang="ru"><trans-title>Нематода <italic>Caenorhabditis elegans</italic> как объект для тестирования генотоксичности химических соединений</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Abilev</surname><given-names>S. K.</given-names></name><name xml:lang="ru"><surname>Абилев</surname><given-names>С. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abilev@vigg.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Machigov</surname><given-names>E. M.</given-names></name><name xml:lang="ru"><surname>Мачигов</surname><given-names>Э. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abilev@vigg.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abilev@vigg.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Marsova</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Марсова</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abilev@vigg.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vavilov Institute of General Genetics Russian Academy of Science</institution></aff><aff><institution xml:lang="ru">Институт общей генетики им. Н.И. Вавилова Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-10" publication-format="electronic"><day>10</day><month>09</month><year>2024</year></pub-date><volume>60</volume><issue>9</issue><fpage>10</fpage><lpage>15</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://transsyst.ru/0016-6758/article/view/667194">https://transsyst.ru/0016-6758/article/view/667194</self-uri><abstract xml:lang="en"><p>In connection with the requirements of International and national organizations to comply with the principles of humanization of experiments using animals, alternative test systems are being searched and tested to replace animals in ecological, toxicological and genotoxicological studies. One such alternative may be the nematode <italic>Caenorhabditis elegans</italic>, which has a biotransformation system of chemical compounds similar to the mammalian system. The genotoxicity of the pesticides paraquat and the antibacterial agent furacilin was studied on <italic>C. elegans </italic>by horizontal gel electrophoresis of total DNA in order to assess its integrity. It has been shown that paraquat in concentrations of 0.01 to 0.05 mol/l and furacilin f in concentrations of 0.0001 and 0.00025 mol/l, caused DNA breaks in nematode cells. The antioxidant N-acetylcysteine at a concentration of 0.01 mol/l reduced the genotoxicity of both compounds.</p></abstract><trans-abstract xml:lang="ru"><p>В связи с требованиями международных и национальных организаций к соблюдению принципов гуманизации экспериментов с использованием животных проводится поиск и апробация альтернативных тест-систем для замены животных в эколого-токсикологических и генотоксикологических исследованиях. Одной из таких альтернатив может быть нематода <italic>Caenorhabditis elegans, </italic>которая обладает системой биотрансформации химических соединений, аналогичной системе млекопитающих. Проведено изучение генотоксичности пестицида параквата и антибактериального средства фурацилина на <italic>C. elegans </italic>методом горизонтального гель-электрофореза тотальной ДНК с целью оценки ее целостности. Показано, что паракват в концентрациях 0,01 моль/л и фурацилин в концентрациях 0,0001 и 0,00025 моль/л индуцировали разрывы ДНК в клетках нематоды. Антиоксидант N-ацетилцистеин в концентрации 0,01 моль/л снижал генотоксичность обоих соединений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Caenorhabditis elegans</kwd><kwd>DNA breaks</kwd><kwd>gelelectrophoresis</kwd><kwd>paraquat</kwd><kwd>furacilin</kwd><kwd>N-acetylcysteine</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Caenorhabditis elegans</kwd><kwd>разрывы ДНК</kwd><kwd>гель-электрофорез</kwd><kwd>паракват</kwd><kwd>фурацилин</kwd><kwd>N-ацетилцистеин</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>122022600163-7</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Russell, W.M.S. , Burch, R.L. 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