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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">toxreview</journal-id><journal-title-group><journal-title xml:lang="ru">Токсикологический вестник</journal-title><trans-title-group xml:lang="en"><trans-title>Toxicological Review</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-7922</issn><issn pub-type="epub">3034-4611</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">10.47470/0869-7922-2022-30-3-139-148</article-id><article-id custom-type="elpub" pub-id-type="custom">toxreview-609</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Масс-спектрометрия низкого разрешения в метаболическом профилировании биологических образцов. Совершенствование метода</article-title><trans-title-group xml:lang="en"><trans-title>Low-resolution GC-MS in metabolic profiling of biological samples with the mass spectrometry. Updating of the method</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2911-1260</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уколов</surname><given-names>Антон Игоревич</given-names></name><name name-style="western" xml:lang="en"><surname>Ukolov</surname><given-names>Anton Igorevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат химических наук, заместитель заведующего отделом токсикологии ФГУП «НИИ ГПЭЧ» ФМБА России, 188663, г.п. Кузьмоловский, Ленинградская область.</p><p>e-mail: Ukolov.ai@gpech.ru</p></bio><bio xml:lang="en"><p>PhD, deputy head of toxicological department FSUE "Research Institute of Hygiene, Occupational Pathology and Human Ecology", FMBA of Russia, g.p. Kuzmolovskii, 188663, Leningrad region, Russian Federation.</p><p>e-mail: Ukolov.ai@gpech.ru</p></bio><email xlink:type="simple">ukolov.ai@gpech.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГУП «НИИ гигиены, профпатологии и экологии человека» ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Hygiene, Occupational Pathology and Human Ecology, FMBA</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2022</year></pub-date><volume>30</volume><issue>3</issue><fpage>139</fpage><lpage>148</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Уколов А.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Уколов А.И.</copyright-holder><copyright-holder xml:lang="en">Ukolov A.I.</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.toxreview.ru/jour/article/view/609">https://www.toxreview.ru/jour/article/view/609</self-uri><abstract><sec><title>Введение</title><p>Введение. Внедрение метаболомных подходов в практику токсикологических исследований, а также расширение методических возможностей лаборатории по определению низкомолекулярных, метаболических биомаркеров эффекта позволяет более эффективно проводить обнаружение и идентификацию новых биомаркеров. Цель работы — разработка методических подходов к метаболическому профилированию биологических образцов методом ГХ-МС низкого разрешения.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Для метаболического профилирования образцов плазмы крови и мочи использовали газовые хроматомасс-спектрометры Shimadzu QP2010plus или Agilent 5975C. Для обработки результатов применяли оптимизированные базы аналитических характеристик эндогенных соединений и систему AMDIS, для идентификации обнаруженных соединений использовали NIST/EPA/NIH 2020. Статистическую обработку осуществляли с помощью «STATISTICA».</p></sec><sec><title>Результаты</title><p>Результаты. Разработана двухстадийная процедура подготовки образцов плазмы крови и мочи для анализа методом ГХ-МС, подобрана смесь внутренних стандартов, определен перечень соединений — эндогенных метаболитов, оценены метрологические характеристики их определения. База данных масс-спектров ионизации электронами и газохроматографических индексов удерживания компонентов метаболического профиля плазмы крови крыс была зарегистрирована (Свидетельство о регистрации базы данных 2021622005 от 23.09.2021).</p></sec><sec><title>Ограничения исследования</title><p>Ограничения исследования. Перечень аналитов, пригодных для определения методом газовой хроматографии, ограничен летучими и условно летучими соединениями.</p></sec><sec><title>Заключение</title><p>Заключение. Использование оптимизированной базы данных метаболитов образца, подготовленного к анализу по стандартизированной процедуре, позволяет отфильтровать аналиты с низкой воспроизводимостью. Небольшие (до 100) базы хроматоспектральных данных позволяют повысить надежность идентификации, исключить влияние дрейфа времен удерживания, и в результате повысить статистическую мощность всего эксперимента, без увеличения количества лабораторных животных.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The introduction of metabolomic approaches into the practice of toxicological studies, as well as the expansion of the methodological capabilities of the laboratory for the determination of low-molecular, metabolic biomarkers of the effect, makes it possible to more effectively detect and identify new biomarkers.</p></sec><sec><title>Material and methods</title><p>Material and methods. For metabolic profiling of blood plasma and urine samples, Shimadzu QP2010plus or Agilent 5975C gas chromatomass spectrometers were used. The results were processed using optimized databases of analytical characteristics of endogenous compounds and the AMDIS system; NIST/EPA/NIH 2017 was used to identify the detected compounds. Statistical processing was performed using Statistica.</p></sec><sec><title>Results</title><p>Results. A two-stage procedure for preparing blood plasma and urine samples for analysis by GC-MS was developed, a mixture of internal standards was selected, a list of compounds — endogenous metabolites was determined, and the metrological characteristics of their determination were evaluated.</p></sec><sec><title>Limitations</title><p>Limitations. The list of analytes suitable for determination by GC-MS is limited to volatile and conditionally volatile compounds.</p></sec><sec><title>Conclusion</title><p>Conclusion. Using an optimized database of sample metabolites prepared for analysis according to a standardized procedure allows filtering out analytes with low reproducibility. Small (up to 100) chromatospectral databases make it possible to increase the reliability of identification, eliminate the effect of retention time drift, and, as a result, increase the statistical power of the entire experiment without increasing the number of laboratory animals.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>газовая хроматография</kwd><kwd>масс-спектрометрия</kwd><kwd>нецелевая метаболимика</kwd><kwd>токсикометаболомика</kwd><kwd>кровь</kwd><kwd>моча</kwd></kwd-group><kwd-group xml:lang="en"><kwd>GC-MS</kwd><kwd>untargeted metabolomics</kwd><kwd>toxicometabolomics</kwd><kwd>blood</kwd><kwd>urine</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">Гончаров Н.В., Уколов А.И., Орлова Т.И., Мигаловская Е.Д., Войтенко Н.Г. Метаболомика: на пути интеграции биохимии, аналитической химии, информатики. 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