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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">10.47470/0016-9900-2022-101-5-572-577</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-2279</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>Микробиологический контроль качества сточной воды методом видовой идентификации микроорганизмов с применением MALDI-TOF MS</article-title><trans-title-group xml:lang="en"><trans-title>Microbiological quality control of wastewater by species identification of microorganisms using MALDI-TOF MS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8194-1536</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>Aleksey V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ФГБУ «ЦСП» ФМБА России, 119121, г. Москва.</p><p>e-mail: streletsky@cspmz.ru</p></bio><bio xml:lang="en"><p>For correspondence: Aleksey V. Streletskiy, Centre for Strategic Planning and Management of Medical and Biological Health Risks of the Federal Medical and Biological Agency, Moscow, 119121, Russian Federation.</p><p>e-mail: streletsky@cspmz.ru</p></bio><email xlink:type="simple">streletsky@cspmz.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/0000-0003-4795-0751</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухина</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhina</surname><given-names>Marina A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5098-5379</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Автономова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Avtonomova</surname><given-names>Anastasiya V.</given-names></name></name-alternatives><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/0000-0002-0260-6677</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Екатеринчева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ekaterincheva</surname><given-names>Ekaterina S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Толкачева</surname><given-names>Л. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Tolkacheva</surname><given-names>Larisa R.</given-names></name></name-alternatives><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/0000-0001-9728-3075</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Грицюк</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gritsyuk</surname><given-names>Olga V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новожилов</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novozhilov</surname><given-names>Konstantin A.</given-names></name></name-alternatives><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/0000-0003-3350-5753</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Водянова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vodyanova</surname><given-names>Mariya A.</given-names></name></name-alternatives><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/0000-0003-4772-9686</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Загайнова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zagainova</surname><given-names>Angelika V.</given-names></name></name-alternatives><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» Федерального медико-биологического агентства</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center for Strategic Planning and Management of Medical and Biological Health Risks of the Federal Medical and Biological Agency</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Центр стратегического планирования и управления медико-биологическими рисками здоровью» Федерального медико-биологического агентства; ФГБУ «Национальный медицинский исследовательский центр колопроктологии имени А.Н. Рыжих» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center for Strategic Planning and Management of Medical and Biological Health Risks of the Federal Medical and Biological Agency; National Medical Research Center of Coloproctology named after A.N. Ryzhikh</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>07</day><month>06</month><year>2022</year></pub-date><volume>101</volume><issue>5</issue><fpage>572</fpage><lpage>577</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Стрелецкий А.В., Сухина М.А., Автономова А.В., Екатеринчева Е.С., Толкачева Л.Р., Грицюк О.В., Новожилов К.А., Водянова М.А., Загайнова А.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Стрелецкий А.В., Сухина М.А., Автономова А.В., Екатеринчева Е.С., Толкачева Л.Р., Грицюк О.В., Новожилов К.А., Водянова М.А., Загайнова А.В.</copyright-holder><copyright-holder xml:lang="en">Streletskiy A.V., Sukhina M.A., Avtonomova A.V., Ekaterincheva E.S., Tolkacheva L.R., Gritsyuk O.V., Novozhilov K.A., Vodyanova M.A., Zagainova A.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/2279">https://www.rjhas.ru/jour/article/view/2279</self-uri><abstract><sec><title>Введение</title><p>Введение. Одной из главных задач оказания медицинской помощи при инфекционных заболеваниях является быстрое установление инфекционного агента. Не менее значима задача своевременного принятия профилактических мер в целях предотвращения кишечных инфекций, распространяющихся водным путём. Поэтому ускоренные методы идентификации микроорганизмов позволяют в краткие сроки установить степень микробного загрязнения воды, в том числе сточной, и, следовательно, их потенциальную опасность для водных объектов и здоровья человека.</p><p>Цель работы — оценить эффективность применения метода матрично-активированной лазерной десорбции/ионизации времяпролётной масс-спектрометрии, Matrix-Assisted Laser Desorption/Ionization (MALDI-TOF MS), для идентификации бактерий при проведении микробиологического контроля качества сточной воды.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В рамках работы проводили бактериологический посев образцов сточной воды на этапе очистки с Курьяновской станции аэрации для определения индикаторных показателей в соответствии с МУ 2.1.5.800-99 «Организация госсанэпиднадзора за обеззараживанием сточных вод» и МУК 4.2.1884-04 «Санитарно-микробиологический и санитарно-паразитологический анализ воды поверхностных водных объектов», выделенные микроорганизмы идентифицировали с помощью MALDI-TOF MS и проводили секвенирование гена 16S рРНК.</p></sec><sec><title>Результаты</title><p>Результаты. Были исследованы и идентифицированы 5 штаммов музейных эталонных культур и 22 выделенных из проб сточных вод бактериальных изолята, выращенных на селективных средах (агар Эндо, энтерококк-агар и хромогенных средах), методом MALDI-TOF MS. Правильность видовой идентификации была подтверждена секвенированием специфических участков гена 16S рРНК.</p></sec><sec><title>Ограничения исследования</title><p>Ограничения исследования. Для бактерий рода Salmonella методом MALDI-TOF MS удалось достоверно идентифицировать только род.</p></sec><sec><title>Заключение</title><p>Заключение. В рутинной практике микробиологических исследований идентификация микроорганизмов основана на определении их культуральных, тинкториальных свойств, а также биохимической активности, определение которых требует больших финансовых и временных затрат. Применение метода MALDI-TOF MS позволяет существенно сократить время идентификации микроорганизмов и делает её возможной уже при появлении видимого роста микроорганизмов.</p></sec><sec><title>Участие авторов</title><p>Участие авторов: Стрелецкий А.В., Сухина М.А., Водянова М.А., Загайнова А.В. — концепция и дизайн исследования, статистическая обработка, написание текста, редактирование; Автономова А.В. — статистическая обработка, написание текста, редактирование; Екатеринчева Е.С., Толкачева Л.Р., Грицюк О.В., Новожилов К.А. — сбор и обработка материала, выполнение экспериментальной работы, статистическая обработка, написание текста, редактирование. Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</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 проведено в рамках НИР «Разработка унифицированных методов, включающих отбор проб, для осуществления определения микробиологического и паразитологического загрязнения сточных вод» (шифр «Сточные воды») № 145.001.21.6 от 12.11.2021 г.</p></sec><sec><title>Поступила</title><p>Поступила: 15.03.2022 / Принята к печати: 21.04.2022 / Опубликована: 31.05.2022</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. One of the main tasks of medical care for infectious diseases is the rapid identification of an infectious agent.</p><p>The purpose of the study is to evaluate the effectiveness of the MALDI mass spectrometry for identification bacteria for microbiological control of wastewater quality.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Samples of wastewater samples at the treatment stage from the Kuryanovskaya aeration station were analyzed in accordance with MU 2.1.5.800-99 “Management of state sanitary and epidemiological supervision of wastewater disinfection” by the identification method in accordance with MUK 4.2.1884-04 “Sanitary-microbiological and sanitary — parasitological water analysis of surface water bodies” with application MALDI-TOF MS and 16S rRNA gene sequencing.</p></sec><sec><title>Results</title><p>Results. 5 strains of museum reference cultures and 22 bacterial isolates from wastewater samples grown on selective media of Endo, Enterococcus and Chromococcus coliform agar were studied, identified by MALDI-TOF MS, and confirmed by sequencing of specific regions of the 16S rRNA gene in bacteria of the genus Salmonella by MALDI-TOF MS identified only gender.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the routine practice of microbiological research, the identification of microorganisms is based on the determination of their cultural, tinctorial properties, and biochemical activity, the determination of which requires large financial and time costs. The use of the MALDI-TOF MS method makes it possible to reduce the time of identification of a microorganism when visible growth of microorganisms appears.</p></sec><sec><title>Contribution</title><p>Contribution: Streletskiy A.V., Sukhina M.A., Vodianova M.A., Zagainova A.V. — study concept and design, statistical processing, text writing, editing; Avtonomova A.V. — statistical processing, text writing, editing; Ekaterincheva E.S., Tolkacheva L.R., Gritsyuk O.V., Novozhilov K.A. — collection and processing of material, experimental work, statistical processing, text writing, editing. 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>Acknowledgement</title><p>Acknowledgement. The study had no sponsorship.</p></sec><sec><title>Received</title><p>Received: March 15, 2022 / Accepted: April 21, 2022 / Published: May 31, 2022</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сточные воды</kwd><kwd>обобщённые колиформные бактерии</kwd><kwd>энтерококки</kwd><kwd>E. coli</kwd><kwd>MALDI-TOF MS</kwd><kwd>секвенирование гена 16S рРНК</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wastewater</kwd><kwd>generalized coliform bacteria</kwd><kwd>enterococci</kwd><kwd>E. coli</kwd><kwd>MALDI-TOF MS</kwd><kwd>16S rRNA gene sequencing</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">Buszewski B., Rogowska A., Pomastowski P., Złoch M., Railean-Plugaru V. Identification of microorganisms by modern analytical techniques. J. 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