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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Agronomy and Animal Industries</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Agronomy and Animal Industries</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Агрономия и животноводство</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-797X</issn><issn publication-format="electronic">2312-7988</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">20038</article-id><article-id pub-id-type="doi">10.22363/2312-797X-2024-19-2-370-382</article-id><article-id pub-id-type="edn">HBBYLN</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Veterinary science</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Ветеринария</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The effect of Farnesol on sensitivity of microorganisms from bacterial-fungal biofilm to antimicrobial agents in vitro</article-title><trans-title-group xml:lang="ru"><trans-title>Действие фарнезола на чувствительность микроорганизмов из бактериально-грибковой биопленки к антимикробным средствам in vitro</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1100-929X</contrib-id><contrib-id contrib-id-type="spin">1172-3163</contrib-id><name-alternatives><name xml:lang="en"><surname>Sachivkina</surname><given-names>Nadezhda P.</given-names></name><name xml:lang="ru"><surname>Сачивкина</surname><given-names>Надежда Павловна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological Sciences, Associate Professor, Department of Veterinary Medicine</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, доцент департамента ветеринарной медицины</p></bio><email>sachivkina@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-3855-5653</contrib-id><name-alternatives><name xml:lang="en"><surname>Nechet</surname><given-names>Oksana V.</given-names></name><name xml:lang="ru"><surname>Нечет</surname><given-names>Оксана Викторовна</given-names></name></name-alternatives><bio xml:lang="en"><p>head of the Microbiological Laboratory Center “Biochim”, deputy director of the Research Center “Nanotechnologies” of the Institute of Biochemical Technology and Nanotechnology</p></bio><bio xml:lang="ru"><p>руководитель Лабораторного центра «Биохим», заместитель директора НОЦ «Нанотехнологии» института биохимической технологии и нанотехнологии</p></bio><email>nechet-ov@rudn.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-0645-3980</contrib-id><contrib-id contrib-id-type="spin">3661-9354</contrib-id><name-alternatives><name xml:lang="en"><surname>Gashimova</surname><given-names>Iman S.</given-names></name><name xml:lang="ru"><surname>Гашимова</surname><given-names>Иман Солтановна</given-names></name></name-alternatives><bio xml:lang="en"><p>Master student, Institute of Biochemical Technology and Nanotechnology</p></bio><bio xml:lang="ru"><p>магистрант института биохимической технологии и нанотехнологии</p></bio><email>1032220115@rudn.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-4387-8281</contrib-id><name-alternatives><name xml:lang="en"><surname>Kondrateva</surname><given-names>Diana V.</given-names></name><name xml:lang="ru"><surname>Кондратьева</surname><given-names>Диана Валерьевна</given-names></name></name-alternatives><bio xml:lang="en"><p>private equestrian veterinarian in Moscow and Moscow region, founder of the mobile equestrian hospital Moscow Equine Services</p></bio><bio xml:lang="ru"><p>частный конный ветеринарный врач Москвы и Московской области, основатель мобильного конного госпиталя Moscow Equine Services</p></bio><email>Diakondratieva@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3281-1081</contrib-id><contrib-id contrib-id-type="spin">5461-3191</contrib-id><name-alternatives><name xml:lang="en"><surname>Sakhno</surname><given-names>Nikolay V.</given-names></name><name xml:lang="ru"><surname>Сахно</surname><given-names>Николай Владимирович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Veterinary Sciences, Associate Professor, Professor, Department of Epizootology and Therapy</p></bio><bio xml:lang="ru"><p>доктор ветеринарных наук, доцент, профессор кафедры эпизоотологии и терапии</p></bio><email>sahnoorelsau@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff id="aff2"><institution></institution></aff><aff-alternatives id="aff3"><aff><institution xml:lang="en">Orel State Agrarian University named after N.V. Parakhin</institution></aff><aff><institution xml:lang="ru">Орловский государственный аграрный университет им. Н.В. Парахина</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-08-30" publication-format="electronic"><day>30</day><month>08</month><year>2024</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en">VOL 19, NO2 (2024)</issue-title><issue-title xml:lang="ru">ТОМ 19, №2 (2024)</issue-title><fpage>370</fpage><lpage>382</lpage><history><date date-type="received" iso-8601-date="2024-09-06"><day>06</day><month>09</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Sachivkina N.P., Nechet O.V., Gashimova I.S., Kondrateva D.V., Sakhno N.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Сачивкина Н.П., Нечет О.В., Гашимова И.С., Кондратьева Д.В., Сахно Н.В.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Sachivkina N.P., Nechet O.V., Gashimova I.S., Kondrateva D.V., Sakhno N.V.</copyright-holder><copyright-holder xml:lang="ru">Сачивкина Н.П., Нечет О.В., Гашимова И.С., Кондратьева Д.В., Сахно Н.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://agrojournal.rudn.ru/agronomy/article/view/20038">https://agrojournal.rudn.ru/agronomy/article/view/20038</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Two microorganisms — <italic>Staphylococcus aureus</italic> and <italic>Candida albicans</italic> isolated from a mixed bacterial-­fungal biofilm of horse wound were studied. Resistance profile of these clinical strains to antimicrobial agents was determined using standard disc diffusion method on solid nutrient medium in the laboratory. Next, Farnesol was added to the disks at concentrations of 12.5…200 μM/ml (experiment) or physiologic saline solution (control). The experiments showed that in most cases addition of Farnesol increased sensitivity of microorganisms to antimicrobial drugs, and there were no cases of a negative effect of Farnesol on sensitivity. Moreover, the best results of synergism were observed in combination with antifungal drugs rather than with antibacterial drugs. There were also unique indicators: sensitivity of <italic>C. albicans</italic> to Nystatin and Miconazole doubled after the addition of Farnesol at a concentration of 25…200 µM/ml. Furthermore, it was proved that the clinical strain of <italic>S. aureus</italic> was completely resistant to penicillin. And sensitivity appeared after the addition of Farnesol. A similar situation was with the <italic>Candida</italic> strain: resistance to Amphotericin B was initially observed, and in combination with Farnesol, this drug began to work even in small concentrations. <italic>In vivo</italic> data indicate that Farnesol has an adjuvant effect in combination with most antibiotics and/or antifungal drugs.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Исследовано 2 микроорганизма — <italic>Staphylococcus aureus </italic>и<italic> Candida albicans</italic>, выделенных из смешанной бактериально-­грибковой биопленки раны лошади. В лаборатории определяли профиль резистентности этих клинических штаммов к антимикробным средствам стандартным диско-­диффузионным методом на плотной питательной среде. Далее к дискам добавляли Фарнезол в концентрациях 12,5…200 мкМ/мл (опыт) или физиологический раствор (контроль). В ходе исследования показано, что в большинстве случаев при добавлении Фарнезола регистрируется увеличение чувствительности микроорганизмов к антимикробным препаратам и нет случаев отрицательного влияния Фарнезола на чувствительность. Причем в процентном соотношении лучшие результаты синергизма отмечены в сочетании с противогрибковыми препаратами, нежели с антибактериальными. Есть и уникальный показатель: чувствительность <italic>C. albicans </italic>к Нистатину и Миконазолу выросла вдвое при добавлении Фарнезола в концентрации 25…200 мкМ/мл. Кроме того, доказано что клинический штамм золотистого стафилококка был полностью резистентен к пенициллину, а при добавлении Фарнезола чувствительность появилась. Аналогично изначально наблюдалась резистентность штамма кандиды к Амфотерицину В, а с Фарнезолом даже в небольших концентрациях этот препарат стал работать. Данные <italic>in vivo</italic> свидетельствуют об адъювантном эффекте Фарнезола в сочетании с большинством антибиотиков и/или противогрибковых препаратов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Staphylococcus aureus</kwd><kwd>Candida albicans</kwd><kwd>horse wound</kwd><kwd>Farnesol</kwd><kwd>antibiotics</kwd><kwd>antifungal drugs</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Staphylococcus aureus</kwd><kwd>Candida albicans</kwd><kwd>рана лошади</kwd><kwd>антибиотики</kwd><kwd>противогрибковые препараты</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sachivkina N, Karamyan A, Semenova V, Ignatiev A, Abdurasulov A, Muratova R, et al. The Effects of Angelica ternata Extract from Kyrgyzstan on the Formation of Candida albicans ATСС 10231 Biofilms. 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