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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">10.47470/0016-9900-2025-104-11-1539-1544</article-id><article-id custom-type="edn" pub-id-type="custom">dabway</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-5306</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>МЕТОДЫ ГИГИЕНИЧЕСКИХ ИССЛЕДОВАНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METHODS OF HYGIENIC AND EXPERIMENTAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Разработка экспресс-метода количественного определения жирных кислот в моче на основе хромато-масс-спектрометрического анализа</article-title><trans-title-group xml:lang="en"><trans-title>Developing an express method for quantification of fatty acids in urine based on chromatography-mass spectrometric analysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2344-3037</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нурисламова</surname><given-names>Татьяна Валентиновна</given-names></name><name name-style="western" xml:lang="en"><surname>Nurislamova</surname><given-names>Tatiana V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор биол. наук, зав. отд. химико-аналитических методов исследования ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: nurtat@fcrisk.ru</p></bio><bio xml:lang="en"><p>DSc (Biology), head of the Department of chemical and analytical research methods, Federal Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: nurtat@fcrisk.ru</p></bio><email xlink:type="simple">nurtat@fcrisk.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/0009-0003-8340-6726</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Терентьев</surname><given-names>Геннадий Ильич</given-names></name><name name-style="western" xml:lang="en"><surname>Terentyev</surname><given-names>Gennady I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Науч. сотр. отд. химико-аналитических методов исследования ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: 2715743@mail.ru</p></bio><bio xml:lang="en"><p>Senior researcher, Department of chemical and analytical research methods, Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: 2715743@mail.ru</p></bio><email xlink:type="simple">2715743@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/0009-0002-4189-9588</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якушева</surname><given-names>Екатерина Андреевна</given-names></name><name name-style="western" xml:lang="en"><surname>Yakusheva</surname><given-names>Ekaterina A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Химик лаб. методов газовой хроматографии отд. химико-аналитических методов исследования ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: yakusheva@fcrisk.ru</p></bio><bio xml:lang="en"><p>Chemist, Laboratory of gas chromatography methods, Department of chemical and analytical research methods, Federal Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: yakusheva@fcrisk.ru</p></bio><email xlink:type="simple">yakusheva@fcrisk.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/0000-0003-3030-3275</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колмогорцева</surname><given-names>Дарья Юрьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmogortseva</surname><given-names>Darya Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мл. науч. сотр. лаб. методов газовой хроматографии отд. химико-аналитических методов исследования ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: subbotina@fcrisk.ru</p></bio><bio xml:lang="en"><p>Junior researcher, Laboratory of gas chromatography methods, Department of chemical and analytical research methods, Federal Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: subbotina@fcrisk.ru</p></bio><email xlink:type="simple">subbotina@fcrisk.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/0000-0002-7738-6832</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лир</surname><given-names>Дарья Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Lir</surname><given-names>Darya N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, вед. научн. сотр. – зав. отд. анализа риска для здоровья, доцент, ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: lir@fcrisk.ru</p></bio><bio xml:lang="en"><p>PhD (Medicine), leading researcher, head of the Department of health risk analysis, Federal Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: lir@fcrisk.ru</p></bio><email xlink:type="simple">lir@fcrisk.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/0000-0002-3594-2650</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суворов</surname><given-names>Дмитрий Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Suvorov</surname><given-names>Dmitry V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Науч. сотр. отд. анализа риска для здоровья ФБУН «ФНЦ МПТ УРЗН», 614045, Пермь, Россия</p><p>e-mail: suvorov@fcrisk.ru</p></bio><bio xml:lang="en"><p>Researcher, Department of Health Risk Analysis, Federal Research Center for Medical and Preventive Technologies for Public Health Risk Management, Perm, 614045, Russian Federation</p><p>e-mail: suvorov@fcrisk.ru</p></bio><email xlink:type="simple">suvorov@fcrisk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Федеральный научный центр медико-профилактических технологий управления рисками здоровью населения» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Center for Medical and Preventive Health Risk Management Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>20</day><month>12</month><year>2025</year></pub-date><volume>104</volume><issue>11</issue><fpage>1539</fpage><lpage>1544</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нурисламова Т.В., Терентьев Г.И., Якушева Е.А., Колмогорцева Д.Ю., Лир Д.Н., Суворов Д.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Нурисламова Т.В., Терентьев Г.И., Якушева Е.А., Колмогорцева Д.Ю., Лир Д.Н., Суворов Д.В.</copyright-holder><copyright-holder xml:lang="en">Nurislamova T.V., Terentyev G.I., Yakusheva E.A., Kolmogortseva D.Y., Lir D.N., Suvorov D.V.</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/5306">https://www.rjhas.ru/jour/article/view/5306</self-uri><abstract><sec><title>Введение</title><p>Введение. Количественное определение в биологических средах организма жирных кислот (ЖК) позволяет оценить их поступление с пищей, участие в биохимических процессах и роль в физиологических функциях, таких как нормальная работа мозга, сердца, а также здоровье кожи и волос.</p><p>Цель исследования – разработка экспресс-метода количественного определения жирных кислот в моче на основе хромато-масс-спектрометрического анализа для оценки пищевого статуса.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. При подготовке проб мочи к химическому анализу жирных кислот проводили щелочное метилирование, обрабатывая биопробы метилатом калия, что позволило быстро и количественно метилировать как свободные жирные кислоты, так и триглицериды. Для разделения эфиров жирных кислот применяли капиллярную колонку с неподвижной жидкой фазой FFAP с программируемым режимом нагрева до температуры плюс 70–245 °С. Масс-спектрометр – квадрупольный, с ионизацией электронами (70 эв).</p></sec><sec><title>Результаты</title><p>Результаты. Разработанный экспресс-метод на основе ХМС позволяет изучать состав ЖК в моче, идентифицируя 34 их производных в диапазоне концентраций от 0,004 до 9,975 мкг/см3. Экспресс-метод характеризуется высоким пределом количественного определения (0,01 мкг/см3) с требуемой точностью. В процессе исследований обнаружены максимальные концентрации жирных кислот – эйкозатриеновой (у 100% здоровых лиц, 3,608 мкг/см3, диапазон концентраций: min 1,716 мкг/см3, max 9,975 мкг/см3) и трикозановой (у 91,2% здоровых лиц, 0,351 мкг/см3, диапазон концентраций: min 0,004 мкг/см3, max 2,531 мкг/см3).</p><p>Ограничения исследования могут быть связаны с необходимостью исключения определения неполного спектра жирных кислот, таких как оксикислоты.</p></sec><sec><title>Заключение</title><p>Заключение. Метаболомный анализ мочи по жирнокислотному составу для оценки пищевого статуса и определения биомаркёров, характеризующих изменения алиментарного фактора, может стать перспективным направлением исследований.</p><p>Соблюдение этических стандартов. Исследование одобрено локальным этическим комитетом ФБУН «Федеральный научный центр медико-профилактических технологий управления рисками здоровью населения» Роспотребнадзора (протокол заседания № 1 от 21.04.2025 г.). Все участники дали информированное добровольное письменное согласие на участие в исследовании. </p></sec><sec><title>Участие авторов</title><p>Участие авторов: Нурисламова Т.В., Лир Д.Н. – концепция и дизайн исследования, редактирование; Терентьев Г.И. – сбор и обработка материала, анализ полученных данных, написание текста; Субботина Д.Ю., Якушева Е.А. – сбор и обработка материала, анализ полученных данных; Суворов Д.В. – сбор и обработка материала. Все соавторы – утверждение окончательного варианта статьи, ответственность за целостность всех её частей.</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: 30.09.2025 / Поступила после доработки: 24.10.2025 / Принята к печати: 03.11.2025 / Опубликована: 19.12.2025</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Quantitative determination of fatty acids (FA) in biological fluids allows assessing of dietary intake, their role in biochemical processes, physiological functions, such as normal brain and heart function. </p></sec><sec><title>Objective</title><p>Objective. To develop a rapid method for the quantitative determination of fatty acids in urine based on chromatograph mass spectrometry analysis for assessing nutritional status. </p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Preparation of urine samples for chemical analysis of fatty acids included alkaline methylation by treating the biosample with potassium methylate, which enabled rapid and quantitative methylation of both free fatty acids and triglycerides. A capillary column with an FFAP with a programmable heating mode of 70–245 °C was used to separate fatty acid esters. The quadrupole mass spectrometer with electron ionization.</p></sec><sec><title>Results</title><p>Results. The developed rapid method based on chromatographic mass spectrometry (CMS) allows analysing the fatty acid composition in urine, identifying 34 of their derivatives in a concentration range from 0.004 to 9.975 µg/cm³. The conducted studies revealed the following maximum fatty acid concentrations: eicosatrienoic acid (3.608 µg/cm3) in 100% and tricosanoic acid (0.351 µg/cm3) in 91.2% of healthy individuals. </p></sec><sec><title>Limitations</title><p>Limitations. Study limitations may be related to the need to exclude the determination of an incomplete spectrum of fatty acids, such as hydroxy acids. </p></sec><sec><title>Conclusion</title><p>Conclusion. Metabolomic analysis of urine for FA composition may be a promising direction for assessing nutritional status and identifying biomarkers characterizing changes in alimentary factors. </p><p>Compliance with ethical standards. The study was approved by the local ethics committee of the Rospotrebnadzor’s Federal Scientific Center for Medical and Preventive Health Risk Management Technologies (the meeting protocol No. 3 dated March 28, 2025). All participants gave informed voluntary written consent to participate in the study.</p></sec><sec><title>Contribution</title><p>Contribution: Nurislamova T.V., Lear D.N. – concept, study design, editing; Terentyev G.I. – collection and treatment of material, analysis of obtained data, writing the text; Subbotina D.Yu., Yakusheva E.A. – collection and treatment of material, analysis of obtained data; Suvorov D.V. – collection and treatment of material. 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>Funding</title><p>Funding. The study had no sponsorship.</p></sec><sec><title>Received</title><p>Received: September 9, 2025 / Revised: October 24, 2025 / Accepted: November 3, 2025 / Published: December 19, 2025</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>жирные кислоты</kwd><kwd>экспресс-метод</kwd><kwd>хромато-масс-спектрометрия</kwd><kwd>определение в моче</kwd><kwd>пищевой статус</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fatty acids</kwd><kwd>rapid method</kwd><kwd>Chromatography-mass spectrometry</kwd><kwd>determination in urine</kwd><kwd>nutritional status</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">Титов В.Н. Среднецепочечные жирные кислоты: содержание в пище, физиология, особенности метаболизма и применение в клинике. Вопросы питания. 2012; 81(6): 27–36. https://elibrary.ru/putcvh</mixed-citation><mixed-citation xml:lang="en">Titov V.N. 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