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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">medecol</journal-id><journal-title-group><journal-title xml:lang="ru">Медицина и экология</journal-title><trans-title-group xml:lang="en"><trans-title>Medicine and ecology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-6045</issn><issn pub-type="epub">2305-6053</issn><publisher><publisher-name>Карагандинский медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.59598/ME-2305-6053-2025-115-2-151-157</article-id><article-id custom-type="elpub" pub-id-type="custom">medecol-1006</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>ТЕОРЕТИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORETICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Оценка хромогенной среды CHROMagar™ orientation для изоляции и дифференцирования патогенных микроорганизмов мочевыводящих путей</article-title><trans-title-group xml:lang="en"><trans-title>EVALUATION OF CHROMAGARTM ORIENTATION CHROMOGENIC MEDIUM FOR ISOLATION AND DIFFERENTIATION OF PATHOGENIC URINARY TRACT MICROORGANISMS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лавриненко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lavrinenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>100008, г. Караганда, ул. Гоголя, 40</p></bio><bio xml:lang="en"><p>100008, Karaganda, Gogolya str., 40</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесниченко</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnichenko</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>100008, г. Караганда, ул. Гоголя, 40</p></bio><bio xml:lang="en"><p>100008, Karaganda, Gogolya str., 40</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательская лаборатория НАО «Медицинский университет Караганды»<country>Казахстан</country></aff><aff xml:lang="en">Scientific Research Laboratory of Karaganda Medical University NC JSC<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>08</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>151</fpage><lpage>157</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лавриненко А.В., Колесниченко С.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Лавриненко А.В., Колесниченко С.И.</copyright-holder><copyright-holder xml:lang="en">Lavrinenko A.V., Kolesnichenko S.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://medecol.qmu.kz/jour/article/view/1006">https://medecol.qmu.kz/jour/article/view/1006</self-uri><abstract><p>Цель исследования. Оценка хромогенной среды CHROMagar™ Orientation для изоляции и дифференцирования патогенных микроорганизмов мочевыводящих.Материалы и методы. Было проведено проспективное исследование, в которое были включены 147 последовательных образцов мочи, взятых у пациентов с клиническим подозрением на инфекции мочевыводящих путей в г. Караганде (Республика Казахстан) в 2019 г.Идентификацию микроорганизмов проводили на среде CHROMagar™ Orientation в соответствии с морфологией, цветом колоний и характеристиками, рекомендованными производителем. Окончательную идентификацию изолятов до вида осуществляли с помощью лазерной десорбционно-ионизационно-времяпролетной масс-спектрометрии (MALDI-TOF MS) с использованием системы Microflex LT и программного обеспечения MALDI Biotyper Compass v.4.1.80 (Bruker Daltonics, Германия). Рекомендуемые значения балла ≥2,0 были использованы в качестве критерия для надежной идентификации видов.Результаты и обсуждение. 55 (37,4%) из 147 посевов мочи дали положительный результат на рост бактерий, 86 (58,5%) не дали роста, 6 образцов были расценены как контаминированный материал. Сравнительные результаты применения CHROMagar™ Orientation для идентификации заявленных микроорганизмов достигли 100% чувствительности и специфичности в сравнении с масс-спектрометрией. Зарегистрирован отличная видовая идентификация для E. сoli – колонии окрашивались в темно-розовый цвет, но для остальных микроорганизмом этого порядка имелись некоторые ограничения – в случае с Klebsiella, Enterobacter, Citrobacter и Serratia необходима дальнейшая видовая идентификация дополнительными тестами.Выводы. Среда CHROMagar™ Orientation может быть использована для выделения и дифференциации микроорганизмов мочевыводящих путей, что обеспечит надежную идентификацию соответствующих уропатогенов, дифференциацию культур, экономию времени и затрат на исследования. </p></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To evaluate CHROMagar™ Orientation Chromogenic Medium for isolation and differentiation of pathogenic urinary tract microorganisms.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. A prospective study was conducted, which included 147 consecutive urine samples from patients with clinically suspected UTIs of Karaganda city (Republic of Kazakhstan) in 2019. The presumptive microorganisms’ identification was carried out at CHROMagar™ Orientation in accordance with morphology, colony color on the characteristics recommended by the manufacturer. The final identification of isolates to species was performed by matrix-associated laser desorption/ionization – time-of-flight mass spectrometry (MALDI-TOF MS) using the Microflex LT system and the MALDI Biotyper Compass v.4.1.80 software (Bruker Daltonics, Germany). The recommended values of Score ≥2.0 were used as a criterion for reliable species identification.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. 55 (37.4%) of 147 urine cultures gave a positive growth of bacteria, 86 (58.5%) did not give a growth, 6 samples were regarded as contaminated material. Comparative results of using CHROMagar™ Orientation for identification of the claimed microorganisms reached 100% sensitivity and specificity compared to mass-spectrometry. Excellent species identification was for E. coli – colonies were stained in dark pink, but there are some limitations for the rest microorganisms – Klebsiella, Enterobacter, Citrobacter, Serratia, respectively, in such cases, further species identification with additional tests is necessary.</p></sec><sec><title>Conclusions</title><p>Conclusions. The results of the study showed that the chromogenic environment of CHROMagar™ Orientation can be used to isolate and differentiate urinary tract microorganisms. This is a reliable identification of relevant uropathogens, cultures differentiation, saving time and research costs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>инфекции мочевыводящих путей</kwd><kwd>хромогенные среды</kwd><kwd>уропатогены</kwd><kwd>микробиологическая диагностика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>urinary tract infections</kwd><kwd>chromogenic media</kwd><kwd>uropathogens</kwd><kwd>microbiological diagnostics</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">Палагин И.С., Сухорукова М.В., Дехнич А.В. .Антибиотикорезистентность возбудителей внебольничных инфекций мочевых путей в России: результаты многоцентрового исследования «ДАРМИС-2018». Клиническая микробиология и антимикробная химиотерапия. 2019; 21 (2): 134 -146.</mixed-citation><mixed-citation xml:lang="en">Palagin I.S., Suhorukova M.V., Dehnich A.V. 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