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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">RUDN Journal of Ecology and Life Safety</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Ecology and Life Safety</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2310</issn><issn publication-format="electronic">2408-8919</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">43658</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2025-33-1-68-77</article-id><article-id pub-id-type="edn">COGPEE</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Biogeochemistry</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Биогеохимия</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">Biochemical assessment of the effect of the antibiotic erythromycin on the river snail (Viviparus viviparus L.)</article-title><trans-title-group xml:lang="ru"><trans-title>Биохимическая оценка действия антибиотика эритромицина на моллюсков живородка речная (Viviparus viviparus L.)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8329-7855</contrib-id><name-alternatives><name xml:lang="en"><surname>Tishina</surname><given-names>Ekaterina A.</given-names></name><name xml:lang="ru"><surname>Тишина</surname><given-names>Екатерина Александровна</given-names></name></name-alternatives><bio xml:lang="en"><p>Head of the Educational Laboratory of Applied Chemistry</p></bio><bio xml:lang="ru"><p>заведующая учебной лабораторией прикладной химии</p></bio><email>89266182591@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8917-7392</contrib-id><contrib-id contrib-id-type="spin">2250-9950</contrib-id><name-alternatives><name xml:lang="en"><surname>Droganova</surname><given-names>Tatiana S.</given-names></name><name xml:lang="ru"><surname>Дроганова</surname><given-names>Татьяна Сергеевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Senior Lecturer at the Department of Theoretical and Applied Chemistry</p></bio><bio xml:lang="ru"><p>старший преподаватель кафедры теоретической и прикладной химии</p></bio><email>tatyanadroganova@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5459-3054</contrib-id><contrib-id contrib-id-type="spin">9605-2840</contrib-id><name-alternatives><name xml:lang="en"><surname>Polikarpova</surname><given-names>Lyudmila V.</given-names></name><name xml:lang="ru"><surname>Поликарпова</surname><given-names>Людмила Викторовна</given-names></name></name-alternatives><bio xml:lang="en"><p>Researcher at the Educational and Scientific Laboratory of Ecological Biochemistry</p></bio><bio xml:lang="ru"><p>научный сотрудник учебно-научной лаборатории экологической биохимии</p></bio><email>judmilapolikarpova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8219-8876</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrov</surname><given-names>Andrew L.</given-names></name><name xml:lang="ru"><surname>Петров</surname><given-names>Андрей Леонидович</given-names></name></name-alternatives><bio xml:lang="en"><p>Laboratory Assistant for the production of bacterial preparations</p></bio><bio xml:lang="ru"><p>лаборант производства бактерийных препаратов</p></bio><email>unodeldiablo@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal State University of Education</institution></aff><aff><institution xml:lang="ru">Государственный университет просвещения</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Medical Immunobiological preparations “Microgen”</institution></aff><aff><institution xml:lang="ru">Научно-производственное объединение по медицинским иммунобиологическим препаратам «Микроген»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-04-01" publication-format="electronic"><day>01</day><month>04</month><year>2025</year></pub-date><volume>33</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>68</fpage><lpage>77</lpage><history><date date-type="received" iso-8601-date="2025-04-05"><day>05</day><month>04</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Tishina E.A., Droganova T.S., Polikarpova L.V., Petrov A.L.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Тишина Е.А., Дроганова Т.С., Поликарпова Л.В., Петров А.Л.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Tishina E.A., Droganova T.S., Polikarpova L.V., Petrov A.L.</copyright-holder><copyright-holder xml:lang="ru">Тишина Е.А., Дроганова Т.С., Поликарпова Л.В., Петров А.Л.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/ecology/article/view/43658">https://journals.rudn.ru/ecology/article/view/43658</self-uri><abstract xml:lang="en"><p>The activity of the complex of acid deoxyribonucleases (DNases) and ribonucleases (RNases) of the hepatopancreas of the river snail ( Viviparus viviparus L.) was studied under normal conditions and under acute exposure to erythromycin. An increase in the activity of acidic DNases has been established, while the nature of the change in RNase activity is less significant. Based on the experimental data obtained, a significant effect of erythromycin on the river snail ( Viviparus viviparus L.), manifested at the biochemical level, was established. The possibility of using changes in the activity of hepatopancreas nucleases of the common river snail as markers of pollution of aquatic ecosystems has been demonstrated.</p></abstract><trans-abstract xml:lang="ru"><p>Исследована активность комплекса кислых дезоксирибонуклеаз (ДНКаз) и рибонуклеаз (РНКаз) гепатопанкреаса моллюска живородка речная ( Viviparus viviparus L.) в норме и при остром воздействии эритромицина. Установлено увеличение активности кислых ДНКаз, тогда как характер изменения активности РНКаз является менее значимым. На основании полученных экспериментальных данных было установлено существенное влияние эритромицина на моллюсков живородка речная ( Viviparus viviparus L.), проявляющееся на биохимическом уровне. Показана возможность использования изменения активности нуклеаз гепатопанкреаса живородки речной в качестве маркеров загрязнения водных экосистем.</p></trans-abstract><kwd-group xml:lang="en"><kwd>water bodies</kwd><kwd>erythromycin</kwd><kwd>nucleases</kwd><kwd>RNase</kwd><kwd>DNAase</kwd><kwd>river snail</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>водные объекты</kwd><kwd>эритромицин</kwd><kwd>нуклеазы</kwd><kwd>РНКаза</kwd><kwd>ДНКаза</kwd><kwd>живородка речная</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Cromwell GL. Why and how antibiotics are used in swine production. 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