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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">zurniimtpe</journal-id><journal-title-group><journal-title xml:lang="ru">Медицина труда и промышленная экология</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Occupational Health and Industrial Ecology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1026-9428</issn><issn pub-type="epub">2618-8945</issn><publisher><publisher-name>FSBSI “Izmerov Research Institute of Occupational Health”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31089/1026-9428-2025-65-7-477-483</article-id><article-id custom-type="edn" pub-id-type="custom">lrikcj</article-id><article-id custom-type="elpub" pub-id-type="custom">zurniimtpe-3879</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORTS</subject></subj-group></article-categories><title-group><article-title>Особенности поведения антибиотика тетрациклина гидрохлорида в почвенной среде</article-title><trans-title-group xml:lang="en"><trans-title>Features of the behavior of the antibiotic tetracycline hydrochloride in the soil environment</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9311-9910</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антропова</surname><given-names>Наталья Сергеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Antropova</surname><given-names>Natalia S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Младший научный сотрудник отдела физико-химических исследований и экотоксикологии</p><p>e-mail: NAntropova@cspfmba.ru</p></bio><bio xml:lang="en"><p>Junior Researcher of the Department of Physical and Chemical Research and Ecotoxicology</p><p>e-mail: NAntropova@cspfmba.ru</p></bio><email xlink:type="simple">NAntropova@cspfmba.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/0000-0002-8194-1536</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стрелецкий</surname><given-names>Алексей Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Streletskiy</surname><given-names>Alexey V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старший научный сотрудник отдела физико-химических исследований и экотоксикологии, канд. хим. наук</p><p>e-mail: AStreletsky@cspfmba.ru</p></bio><bio xml:lang="en"><p>Senior Researcher of the Department of Physical and Chemical Research and Ecotoxicology, Cand. of Sci. (Chem.)</p><p>e-mail: AStreletsky@cspfmba.ru</p></bio><email xlink:type="simple">AStreletsky@cspfmba.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/0000-0003-2275-9010</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ушакова</surname><given-names>Ольга Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Ushakova</surname><given-names>Olga V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ведущий научный сотрудник отдела гигиены, канд. мед. наук</p></bio><bio xml:lang="en"><p>Leading Researcher of the Hygiene Department, Cand. of Sci. (Med.)</p></bio><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/0000-0002-7942-8004</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юдин</surname><given-names>Сергей Михайлович</given-names></name><name name-style="western" xml:lang="en"><surname>Yudin</surname><given-names>Sergey M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>И.о. генерального директора, д-р мед. наук, профессор</p></bio><bio xml:lang="en"><p>Acting Director General, Dr. of Sci. (Med.), Professor</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Центр стратегического планирования и управления медико-биологическими рисками здоровью» ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center for Strategic Planning and Management of Biomedical Health Risks</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>09</month><year>2025</year></pub-date><volume>65</volume><issue>7</issue><fpage>477</fpage><lpage>483</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Антропова Н.С., Стрелецкий А.В., Ушакова О.В., Юдин С.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Антропова Н.С., Стрелецкий А.В., Ушакова О.В., Юдин С.М.</copyright-holder><copyright-holder xml:lang="en">Antropova N.S., Streletskiy A.V., Ushakova O.V., Yudin S.M.</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.journal-irioh.ru/jour/article/view/3879">https://www.journal-irioh.ru/jour/article/view/3879</self-uri><abstract><sec><title>Введение</title><p>Введение. Загрязнение окружающей среды тетрациклином обусловлено как выбросами фармацевтических производств, так и внесением остатков антибиотика с навозом в качестве удобрения, что требует разработки методов очистки, мониторинга содержания и изучения стабильности вещества в почве для снижения экологических рисков.</p><p>Цель исследования — изучение стабильности тетрациклина и определение продуктов его трансформации в почвенной среде.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Подготовка стандартных растворов тетрациклина и загрузка их в почву. Экстракция тетрациклина из почвы буфером ЭДТА-Макилвейна с последующей очисткой твердофазной экстракцией. Анализ экстрактов методом хроматографии с тандемной масс-спектрометрией для количественного и качественного определения исходного вещества и продуктов его трансформации. Сравнительный анализ масс-спектров почвенных экстрактов для выявления новых продуктов распада и оценки скорости деградации.</p></sec><sec><title>Результаты</title><p>Результаты. В почве тетрациклин подвергается постепенной трансформации с периодом полураспада 5–7 суток для дерново-подзолистой почвы и 8–12 суток для чернозёма; при этом накапливаются продукты декарбоксамидирования, дезаминирования и дегидроксилирования, а также обнаружены ранее неописанные соединения (m/z 679 и 701) с предполагаемой димерной структурой. Независимо от типа почвы состав продуктов трансформации был одинаковым, что свидетельствует о сходных механизмах разложения антибиотика в различных почвенных условиях.</p></sec><sec><title>Ограничения исследования</title><p>Ограничения исследования. Исследование проводилось в лабораторных условиях с использованием искусственно загрязнённых образцов почвы, что может не полностью отражать сложность и разнообразие реальных почвенных экосистем и природных процессов трансформации тетрациклина. Были изучены только два типа почвы (дерново-подзолистая и чернозём), в то время как в природе встречается гораздо большее разнообразие почв с разными физико-химическими свойствами, которые могут существенно влиять на скорость и характер распада антибиотика. Продукты распада были идентифицированы только по масс-спектрометрическим данным без подтверждения их структуры с помощью дополнительных методов (например, ЯМР-спектроскопии), что оставляет вероятность ошибочной интерпретации состава продуктов.</p></sec><sec><title>Выводы</title><p>Выводы. Тетрациклин в почве быстро разлагается с образованием новых, в том числе ранее не описанных продуктов трансформации, что может существенно влиять на экологическую безопасность и требует дальнейшего изучения их свойств и последствий для окружающей среды.</p></sec><sec><title>Этика</title><p>Этика. Исследование не требует предоставления заключения комитета по биомедицинской этике или иных документов.</p></sec><sec><title>Участие авторов</title><p>Участие авторов:Антропова Н.А. — сбор и обработка материала, выполнение экспериментальной работы, написание текста, редактирование;Стрелецкий А.В. — концепция и дизайн исследования, сбор и обработка материала, выполнение экспериментальной работы, статистическая обработка, написание текста, редактирование;Ушакова О.В. — концепция и дизайн исследования, редактирование;Юдин С.М. — редактирование.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование проведено при финансовой поддержке в рамках государственного задания.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы заявляют об отсутствии конфликта интересов.</p></sec><sec><title>Дата поступления</title><p>Дата поступления: 29.07.2025 / Дата принятия к печати: 02.08.2025 / Дата публикации: 05.09.2025</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Pollution of the environment with tetracycline is caused by both emissions from pharmaceutical production and the introduction of antibiotic residues with manure as fertilizer, which requires the development of methods for cleaning, monitoring the content and studying the stability of the substance in the soil to reduce environmental risks.</p><p>The study aims to investigate the stability of tetracycline and the determination of its transformation products in the soil environment.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Preparation of standard tetracycline solutions and their loading into the soil. Extraction of tetracycline from soil with EDTA-McIlwain buffer followed by purification by solid phase extraction. Analysis of extracts by chromatography with tandem mass spectrometry for quantitative and qualitative determination of the starting material and its transformation products. Comparative analysis of mass spectra of soil extracts to identify new decomposition products and assess the rate of degradation.</p></sec><sec><title>Results</title><p>Results. In soil, tetracycline undergoes gradual transformation with a half-life of 5–7 days for sod-podzolic soil and 8–12 days for chernozem; at the same time, decarboxamidation, deamination and dehydroxylation products accumulate, and researchers have also discovered previously undescribed compounds (m/z 679 and 701) with a suspected dimeric structure. Regardless of the type of soil, the composition of the transformation products was the same, which indicates similar mechanisms of antibiotic decomposition in different soil conditions.</p></sec><sec><title>Limitations</title><p>Limitations. The authors conducted the study in laboratory conditions using artificially contaminated soil samples, which may not fully reflect the complexity and diversity of real soil ecosystems and natural tetracycline transformation processes. They studied only two types of soil (sod-podzolic and chernozem), while in nature there is a much greater variety of soils with different physico-chemical properties that can significantly affect the rate and nature of the breakdown of the antibiotic. Experts identified the decay products only from mass spectrometric data without confirming their structure using additional methods (for example, NMR-spectroscopy), which leaves the possibility of erroneous interpretation of the composition of the products.</p></sec><sec><title>Conclusions</title><p>Conclusions. Tetracycline decomposes rapidly in the soil to form new transformation products, including previously undescribed ones, which can significantly affect environmental safety and requires further study of their properties and consequences for the environment.</p></sec><sec><title>Ethics</title><p>Ethics. The study does not require the provision of an opinion from the biomedical Ethics Committee or other documents.</p></sec><sec><title>Contributions</title><p>Contributions:Antropova N.A. — collecting and processing material, performing experimental work, writing text, editing;Streletskiy A.V. — concept and design of research, collection and processing of material, experimental work, statistical processing, text writing, editing;Ushakova O.V. — research concept and design, editing;Yudin S.M. — editing.</p></sec><sec><title>Funding</title><p>Funding. The study was conducted with financial support as part of a government assignment.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Received</title><p>Received: 29.07.2025 / Accepted: 02.08.2025 / Published: 05.09.2025</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>почва</kwd><kwd>хроматография</kwd><kwd>тетрациклин</kwd><kwd>масс-спектрометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>soil</kwd><kwd>chromatography</kwd><kwd>tetracycline</kwd><kwd>mass spectrometry</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">Forsberg K.J., Reyes A., Wang B., Selleck E.M., Sommer M.O., Dantas G. The shared antibiotic resistome of soil bacteria and human pathogens. 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